Construction method Product List and Ranking from 1588 Manufacturers, Suppliers and Companies | IPROS

Last Updated： Aggregation Period:Jan 28, 2026～Feb 24, 2026
This ranking is based on the number of page views on our site.

Construction method Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Jan 28, 2026～Feb 24, 2026
This ranking is based on the number of page views on our site.

  1. Taiyo Kisokogyo Co.,Ltd. Aichi//General contractors and subcontractors
  2. エルニード協会 Kagawa//Other construction industries
  3. 丸八土建 Mie//General contractors and subcontractors
  4. 4 HOKOKU ENGINEERING CO.,LTD. Osaka//Other construction industries
  5. 5 シーカ・ジャパン Tokyo//Building materials, supplies and fixtures manufacturers
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Construction method Product ranking

Last Updated： Aggregation Period:Jan 28, 2026～Feb 24, 2026
This ranking is based on the number of page views on our site.

  1. Soil Coating Method "PoliSoil Greening" <NETIS Registered> 丸八土建
  2. 地下水・軟弱地盤対応の基礎工法『スーパーラップルエルニード工法』 エルニード協会
  3. Foundation Omega Method HOKOKU ENGINEERING CO.,LTD.
  4. 4 Install the valve without stopping the water! 'EM Continuous Water Valve Method' 水研
  5. 5 Hybrid Concrete Reinforcement Method "Solid Remain Alpha"

Construction method Product List

3361～3390 item / All 4275 items

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Construction method "Ventilated Insulation WB Method"

Construction method "Ventilated Insulation WB Method"

Adoption of patented technology "Shape Memory Opening and Closing Device"! A construction method that has also obtained certification from the Minister of Land, Infrastructure, Transport and Tourism.

The "Ventilation and Insulation WB Method" is an "evolved traditional construction method" that combines Japan's traditions with new technologies. By expelling stagnant air without trapping moisture, odors, and chemicals that arise from daily life, it allows the house to breathe, maintaining a comfortable temperature and humidity inside the home, thus achieving a "healthy house" that supports the health of its inhabitants. Since it can efficiently regulate indoor temperature, there is no need to excessively use heating and cooling systems, leading to "energy savings, CO2 reduction, and prevention of global warming." 【Features】 ■ In summer, ventilation openings automatically open to create natural airflow. ■ In winter, ventilation openings automatically close to enhance insulation. *For more details, please feel free to contact us.

  • Housing structure technology/long-term superior housing technology
  • Heat insulation and heat shielding methods
  • Construction method

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Lightweight roofing material "OnduVilla"

Lightweight roofing material "OnduVilla"

Flexible and leak-proof! Lightweight roofing material designed with a beautiful mosaic pattern.

"OnduVilla" is a lightweight roofing material that features a pattern resembling tiles or shingles. It does not leak even under high temperatures or cold climate conditions, and it has elasticity, ensuring that tiles do not crack even with temperature changes that cause water to freeze. The corrugated design has a cross-sectional area of 85 cm² per meter of eave, providing good ventilation space between the insulation and the roof tiles. A well-ventilated roof prevents damage from condensation. 【Features】 ■ Elastic and leak-proof ■ Extremely lightweight at 4 kg per m² ■ Easy installation by simply overlapping double-embossed lines ■ Creates beautiful roof patterns with a special coloring system ■ Compact and lightweight, making it easy to transport *For more details, please refer to the PDF materials or feel free to contact us.

  • Others/Roofing materials (shingles, cement, steel sheets, aluminum)
  • Roof and gutter construction
  • Construction method

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The "KES Method" of joining hardware in wooden construction offers excellent earthquake resistance!

The "KES Method" of joining hardware in wooden construction offers excellent earthquake resistance!

Patents obtained in countries around the world! Incredible strength and flexibility, excellent durability and endurance performance! Case studies of residential to large-scale and mid-to-high-rise public wooden construction projects are now available!

The "KES Method" is the first joint hardware construction method for wooden buildings developed in Japan under the mission of "protecting the lives and property of important families." By using original joint hardware, it thoroughly reinforces the joint areas, which are the weak points of traditional frame construction, achieving high strength. 【Features】 ■ Incredible strength and flexibility provided by joint hardware ■ Excellent resistance and durability, ensuring preparedness for the future ■ Proven strength against earthquakes ■ Significantly enhanced durability of joint hardware, resistant to rust with hot-dip galvanization ■ Reliable quality certified with the S mark *For more details, please download the PDF or feel free to contact us.

  • Formwork material
  • Housing structure technology/long-term superior housing technology
  • Earthquake-resistant construction method
  • Construction method

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Existing pipe resin reinforcement method: "Hose Lining Method"

Existing pipe resin reinforcement method: "Hose Lining Method"

Reinforce existing pipes to significantly improve vibration resistance! Resin hose crimping method! Also effective for rust prevention and waterproofing!

The "Hose Lining Method" involves the inversion insertion of a seal hose (polyester fiber + polyethylene resin) coated with adhesive into an existing pipe using air pressure, reinforcing and rehabilitating the existing pipe. The seal hose has high tensile strength and energy absorption performance, allowing it to follow the movements of the pipeline caused by ground fluctuations and earthquakes, significantly improving vibration resistance. Additionally, since the inner surface of the pipe is protected, it prevents rust formation and completely stops water leakage from joints and other areas. 【Features】 ■ Improved seismic and durability of pipelines ■ High strength and high pressure for long spans ■ Prevention of red water and leaks ■ Comprehensive water quality measures ■ Improved flow capacity *For more details, please download the PDF or feel free to contact us.

  • Renovation and repair methods
  • Construction method

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Introduction to the Bulk Spray Method "Hias Method"

Introduction to the Bulk Spray Method "Hias Method"

Short construction period, low cost, safe asbestos bulk spray containment method.

At Life Protect Co., Ltd., we offer the "Hias Method," which was developed after a detailed examination of the issues related to removal, containment, and enclosure. We use a council-certified "Air Fog Atomizer" that generates a mist with a consistent particle size, and we spray the minister-certified agent "Hias Gripper" automatically without human intervention. By spraying a mist-like agent with uniform particle size, it is possible to capture dust in areas that are difficult to access, such as gaps where human hands cannot reach, places where asbestos dust is not visible, and airborne dust. 【Features】 ■ Registered in the Ministry of Land, Infrastructure, Transport and Tourism's New Technology Information Provision System KT-100050-A ■ Construction can be carried out without the need for tenant or resident relocation ■ No asbestos dispersion ■ Maintains fire resistance, thermal insulation, and condensation prevention performance *For more details, please download the PDF or contact us.

  • Renovation and repair methods
  • Special Construction Method
  • Construction method

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Construction method "Nano-Mente SB Method"

Construction method "Nano-Mente SB Method"

It is a highly safe cleaning system that takes the environment into consideration!

The "Nano-Mente SB Method" is a technique that penetrates special cleaning agents into materials such as walls and wood to remove mold and eradicate it from the source. It decomposes mold and dirt inside and outside buildings from the root, maintaining aesthetics with antibacterial, antifungal, and waterproof effects. It restores without damaging the building, discoloring the paint, or harming the wood. 【Features】 ■ Easy and speedy construction ■ No scaffolding required ■ Achieves low cost ■ Long-lasting effects ■ Safe and secure for both humans and nature *For more details, please download the PDF or feel free to contact us.

  • Rust Inhibitor
  • Construction method

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Introduction to Seismic Reinforcement "Portal Grid Method"

Introduction to Seismic Reinforcement "Portal Grid Method"

Patent obtained! Brace-free seismic reinforcement system.

Pentabuilders Co., Ltd. offers the 'Portal Grid Method,' which reinforces the outer surfaces of PG frame RC and SRC column beams using H-shaped steel. Since it is an external reinforcement method, construction can be carried out while the building is in use. Additionally, it allows for an open space without braces, making it architecturally and aesthetically superior. 【Features】 ■ Applicable to commercial facilities and condominiums ■ Distributed reinforcement that reduces the load on the foundation ■ Shorter construction period and cost reduction compared to conventional methods *For more details, please download the PDF or feel free to contact us.

  • Earthquake-resistant construction method
  • Systems Architecture
  • Special Construction Method
  • Construction method

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Hyper-NAKS II Method for Expanding and Reinforcing Underground Excavation

Hyper-NAKS II Method for Expanding and Reinforcing Underground Excavation

An evolved version of the middle excavation expansion foundation method, ensuring high reliability through an advanced construction management system!

The "Hyper-NAKS II Method" is classified as an embedded pile method using precast concrete piles, specifically the middle excavation and expansion foundation method. With the hydraulic mechanism, the starting position for wing expansion and the position for fixed liquid injection around the pile can be confirmed in real-time by the construction management device. Additionally, since it allows for the construction of the bulb section in a clockwise direction, it increases the soil discharge rate within the bulb section, enabling the construction of high-quality bulbs. 【Features】 ■ Dramatic increase in bearing capacity ■ Maximum pile diameter is φ1200mm ■ Maximum construction depth exceeds 70m ■ Foundation bulb structure using hydraulic expansion bits ■ Adoption of a new construction management system that ensures workability and reliability *For more details, please download the PDF or feel free to contact us.

  • Ground foundation construction method
  • Construction method

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Friction Support Method "NEW Super FK Method"

Friction Support Method "NEW Super FK Method"

A method to be stopped in the intermediate layer of various ground types.

The "NEW Super FK Method" is a friction support method that enhances the lateral earth pressure and generates greater frictional force by adding the reaction force from the expansion pressure caused by the fixed liquid around the piles, compared to conventional friction pile methods. It allows for various combinations of pile materials to suit ground conditions and applications. Additionally, significant cost reductions can be achieved by shortening the pile length. 【Features】 ■ Top-class frictional force ■ Supports various variations ■ Simple construction that meets the needs of the times *For more details, please download the PDF or feel free to contact us.

  • Civil Engineering Method
  • Construction method

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Underground Expansion Foundation Method "STJ Method"

Underground Expansion Foundation Method "STJ Method"

Construction is possible up to 80m! It is a low noise, low vibration method.

The "STJ Method" is a construction method for precast concrete piles that falls under the category of low-noise and low-vibration methods for the middle excavation and enlarged root solidification. By switching the auger's rotation to a low speed and jetting cement milk from high-pressure injection nozzles in two directions while raising the auger at a constant speed, a reliable enlarged bulb is constructed. 【Features】 ■ Reliable construction of enlarged bulbs ■ High bearing capacity ■ Rapid construction ■ Low construction costs ■ Low earth discharge method *For more details, please download the PDF or feel free to contact us.

  • Civil Engineering Method
  • Construction method

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Pre-boring expansion grouting method "Kemun Method / ST Kemun Method"

Pre-boring expansion grouting method "Kemun Method / ST Kemun Method"

Construction Minister certified construction method! It is a method that makes construction management easy and simple.

The "Kemun Method / ST Kemun Method" is a low-vibration, low-noise construction method that can securely anchor to the supporting layer and adapt to various ground conditions. While excavating and mixing, water or a pile surrounding fixation fluid is injected from the tip of the drilling bit. Once the desired depth is reached, a specified amount of solidification fluid is injected to construct the solidified bulb section. Next, the excavation mixing shaft is pulled up while injecting the pile surrounding fixation fluid. In this way, a pile is inserted into the excavated hole and positioned at the desired location by self-sinking or rotation. 【Features (Common)】 ■ Low noise, low vibration method ■ By rotating the pile, it can be securely anchored to the supporting layer ■ The pile surrounding fixation fluid is injected along the entire length of the pile surface, allowing for expected friction ■ Wide range of applicable ground conditions ■ The solidification fluid contains a leakage prevention agent, resulting in a high-quality expanded solidified bulb section *For more details, please download the PDF or feel free to contact us.

  • Civil Engineering Method
  • Construction method

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Toyo Asano Co., Ltd. General Catalog

Toyo Asano Co., Ltd. General Catalog

Introducing a lineup of products from the "TAFCO" brand, synonymous with high-performance piles!

This catalog is a comprehensive catalog from Toyo Asano Co., Ltd., which focuses on the manufacturing and construction of concrete piles that serve as the foundation for buildings, offering design proposals tailored to customer needs. Our concrete piles include TAFCO piles with a concrete design strength of 85 N/mm² and HIT piles with a strength of 105 N/mm². Additionally, we offer various types of piles such as PHC piles and SC piles. You can choose the appropriate pile according to your application. [Contents] ■ Types of concrete piles ■ Manufacturing method of TAFCO-PHC piles ■ TAFCO-PHC piles ■ HIT-PHC piles ■ TAFCO-MC piles, etc. *For more details, please download the PDF or feel free to contact us.

  • Concrete sheet piles and piles
  • Construction method

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Special Friction Support Method "MRX Method"

Special Friction Support Method "MRX Method"

A method for supporting low-rise buildings on weak ground.

The "MRX Method" is a special friction support method that excavates and mixes the ground in a polygonal shape, integrating soil cement and piles, allowing for extremely high bearing capacity compared to existing methods. By achieving high bearing capacity, construction costs for buildings can be reduced. Additionally, due to its low vibration and low noise characteristics, it is a method that takes into consideration urban areas and surrounding environments. 【Features】 ■ Can accommodate various ground conditions ■ Provides high lateral friction force ■ Easy construction management ■ Generates little waste soil ■ Minimal impact on surrounding environments ■ Compatible with conventional round piles *For more details, please download the PDF or feel free to contact us.

  • Special Construction Method
  • Construction method

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Wooden construction method "APS method"

Wooden construction method "APS method"

A new wooden construction method that is resistant to earthquakes and fires.

The APS construction method is a wooden building technique that minimizes cross-sectional defects while preserving the beauty and precision of traditional joints and timber framing. By incorporating specialized hardware, it enhances the strength of the joints. This advanced method combines the advantages of hardware construction with the benefits of traditional techniques, excelling in both cost and design. 【Features】 ■ Earthquake resistance ■ Fire resistance and airtightness ■ Aesthetic appeal *For more details, please download the PDF or feel free to contact us.

  • Earthquake-resistant construction method
  • Housing structure technology/long-term superior housing technology
  • Systems Architecture
  • Construction method

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Simple earth retention method for excavation.

Simple earth retention method for excavation.

The relocation of the excavation area due to construction is quick, so the construction period in residential areas is shorter.

We would like to introduce the "Simple Earth Retention Method for Excavation." In this method, we carry out the work while confirming the excavation in areas that have traditionally been extremely difficult, such as gravel layers. Therefore, when there are boulders, cobbles, or obstacles, it becomes easy to either remove them or proceed with the excavation while embedding them. Additionally, the machinery used consists only of an excavator and a crane truck, with no other heavy equipment or materials required. 【Features】 ■ Each component is designed with safety calculations and a soft composite structure. ■ The interior of the excavation allows for wider and safer work. ■ The movement of the excavation area due to construction is quick. ■ The construction period in residential areas is shorter. ■ Each component can be disassembled and transported by a regular truck. *For more details, please refer to the PDF document or feel free to contact us.

  • Civil Engineering Method
  • Construction method

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Construction Case: Ceiling Heat Insulation Work at Mr. S's Residence

Construction Case: Ceiling Heat Insulation Work at Mr. S's Residence

Excellent thermal insulation even in the winter cold, and we've solved the condensation problem! Here is an example of heat insulation work in the attic.

We would like to introduce a case study of the ceiling heat insulation work requested by Mr. S. Due to the aging of the home, we received a request for a high-durability total renovation. In response, we introduced the patented heat insulation material "Top Heat Barrier" and installed it over the insulation in the attic during the roof replacement. "After the installation, we requested it with the hope that it would make things a little easier during the renovation, and I am surprised by how much cooler this summer has been than expected. The insulation effect in winter is excellent, and the condensation that had troubled us every year has disappeared, allowing us to live comfortably," we received this feedback. [Customer's Request] ■ High-durability total renovation due to the aging of the home *For more details, please refer to the PDF document or feel free to contact us.

  • Heat insulation and heat shielding methods
  • Heat shielding sheet
  • Renovation and repair methods
  • Construction method

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TDR shot lining system method (mortar wet spraying method)

TDR shot lining system method (mortar wet spraying method)

Corresponds to various sharp curves! A construction method for clients who want to reduce costs or shorten construction time.

The "TDR Shot Lining System Method" is a secondary lining construction system for shield steel segment sections. It responds to needs such as "wanting to fill steel segments in shield tunnels with sharp curves," "wanting to shorten construction time," and "wanting to increase construction speed." By introducing this method, it can accommodate sharp curve sections that are difficult to construct with conventional methods, and it can fill various areas of steel segments, achieving high density. 【Benefits of Implementation】 ■ Achieved approximately 1.7 times construction progress - T Construction Co. ■ Able to handle sharp curve sections that are difficult to construct with conventional methods ■ Can fill various areas of steel segments, resulting in high density *For more details, please refer to the related links or feel free to contact us.

  • Renovation and repair methods
  • Civil Engineering Method
  • Tunnel construction
  • Construction method

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Surface collapse prevention method for slopes: "Steel root installation method"

Surface collapse prevention method for slopes: "Steel root installation method"

A method to preserve the topsoil without cutting down trees using "iron roots"!

The "Steel Root Installation Method" is a rapid, economical, and environmentally friendly slope surface stabilization technique. Forest vegetation spreads strong root systems like a net across the soil layers of the mountainside, gripping the surface soil as if various sizes of piles have been driven in. Additionally, it is important to eliminate water pressure to prevent excessive pore water pressure that could lead to slope failure. The land conservation functions of these forest root systems are complemented and reinforced by the "steel roots." [Features] ■ Binding effect ■ Water absorption effect (reduction of pore water pressure) ■ Pile effect *For more details, please download the PDF or feel free to contact us.

  • Special Construction Method
  • Construction method

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Metal construction method "DURA-JOINT"

Metal construction method "DURA-JOINT"

It is also possible to finish beautifully when used for decorative beams! Durable housing hardware that can withstand long-term use.

"DURA-JOINT" is a hardware method that can be used not only with laminated wood but also with "domestic solid wood." The round tenon on the back of the hardware has a "jaw support effect" that supports the beam, demonstrating high resistance to "tensile," "shear," and "reverse shear (uplift from below)" loads. With its unique chrome-free rust prevention treatment "Dural Coat," it also offers long-term durability, contributing to the effective use of domestic wood and consideration for the environment in housing. 【Features】 ■ High precision ■ Effective use of domestic wood ■ Durable housing hardware ■ Compatible not only with laminated wood but also with "cedar lumber products" ■ Standard adoption of chrome-free rust prevention treatment "Dural Coat" *For more details, please refer to the PDF materials or feel free to contact us.

  • Fittings and fittings work
  • Construction method

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Introduction to the Earth Drill Type Enlarged Base Pile Method "SY Method"

Introduction to the Earth Drill Type Enlarged Base Pile Method "SY Method"

A cast-in-place concrete enlarged base pile method that allows for a fivefold increase in bearing capacity even in narrow sites.

The "SY Method" is a new cast-in-place concrete enlarged base pile method that achieves a large bearing capacity by excavating the enlarged base diameter to more than twice the shaft diameter. With a mechanical bucket, it is possible to construct enlarged base piles with five times the bearing capacity even in narrow sites. It also accommodates high-strength concrete with a design standard strength of up to 45 N/mm². 【Features】 ■ Maximum enlarged base diameter φ4700mm ■ 4.84 times high bearing capacity ■ Suitable for narrow sites ■ Compatible with all casing ■ Reliable construction management *For more details, please download the PDF or contact us.

  • Earthworks
  • Road construction
  • Construction method

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Full rotary cast-in-place concrete pile enlarged base method (GSB method)

Full rotary cast-in-place concrete pile enlarged base method (GSB method)

The maximum base diameter is 3000mm, and a maximum slope angle of 12 degrees can be constructed. The excavated soil can be recycled as general surplus soil.

This technology is a full-casing enlarged pile construction method that can build enlarged piles in soft rock and medium-hard rock support layers. An enlarged excavation device called the GSB bucket is attached to the tip of the casing of a general-purpose full-rotation drilling machine, and the bottom of the hole is enlarged using the rotational torque of the full-rotation drilling machine and the hydraulic telescopic arm of the GSB bucket. Since the amount of casing penetration and the extension of the arm can be managed in 1 cm increments, it allows for the construction of inclined sections with a maximum inclination angle of 12 degrees. 【Features】 ■ Enlarged excavation can be performed in very hard rock ■ Minimal pile core deviation and high vertical accuracy ■ Simple equipment for enlarged excavation ■ Adaptable to changing ground conditions ■ Capable of handling underground obstacles within a series of drilling processes *For more details, please refer to the PDF materials or feel free to contact us.

  • Civil Engineering Method
  • Construction method

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Introduction to the seismic reinforcement method "RB Method"

Introduction to the seismic reinforcement method "RB Method"

A seismic reinforcement method that bonds brace materials to existing frameworks by releasing prestress.

At Daiwa Corporation, we offer the seismic reinforcement method "RB Method," which allows braces to be pressure-bonded to existing frameworks using self-adhesive force, making relocation possible. By utilizing the rebound force of the disc springs installed at the ends of the braces, we pressure-bond and integrate the braces with the existing structure, thereby enhancing the seismic performance of the existing building. 【Features】 ■ Reinforcement while occupied ■ Shortened construction period ■ Cost reduction ■ Safe, as no welding or gas flames are used during construction *For more details, please download the PDF or contact us.

  • Earthquake-resistant construction method
  • Reinforcement and repair materials
  • Construction method

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Large-scale precast prefabricated retaining wall method "Super Wall Method"

Large-scale precast prefabricated retaining wall method "Super Wall Method"

Maximize land use! A retaining wall method that supplies high-quality products.

The "Super Wall Method" is a construction technique that allows for the height of the wall to be freely adjusted by combining five types of blocks, making it easy to construct high retaining walls. Compared to conventional retaining walls, the assembly work is simpler and does not require skilled labor, making construction management easier and speeding up the project. Additionally, positioning pins are used at the joints between blocks to ensure smooth alignment during installation. 【Features】 ■ Excellent workability ■ High rigidity ■ Cost-effective ■ Promotes labor-saving *For more details, please download the PDF or feel free to contact us.

  • Concrete Retaining Wall
  • Retaining wall
  • Construction method

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[Construction Case] Rebuilding the factory without extinguishing the "big pot" fire.

[Construction Case] Rebuilding the factory without extinguishing the "big pot" fire.

Construction method that does not stop factory operations" Naruse Steel Industry Co., Ltd. "Separate Method

The "Separate Construction Method" is a technique that allows for rebuilding without completely demolishing existing buildings. Instead of new construction after total demolition, it divides the construction period into two phases, enabling the replacement to be carried out while maintaining operations even in densely populated areas where expanding the building space is not possible. In this construction plan, based on the request to switch from the old large furnace to the new one without stopping the operation of the large furnace, a new large furnace was established on the first phase construction side to take over operations from the old large furnace. Additionally, to avoid waste during future factory expansions, the building on the second phase construction side is designed to be suspended from the structural framework of the first phase construction side. This also contributes to reducing the factory's life cycle costs. 【Construction Targets】 ■ There is relocation space on adjacent land. ■ There is no room around the existing building. ■ It is possible to plan the production line across upper and lower floors. *For more details, please refer to the PDF document or feel free to contact us.

  • Special Construction Method
  • others
  • Construction method

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[Construction Example] Raised the building by 6 meters to expand the lifting height of the crane inside the factory.

[Construction Example] Raised the building by 6 meters to expand the lifting height of the crane inside the factory.

Construction method that does not stop factory operations" Electric Industry Co., Ltd. Kawagoe Factory "Lift-Up Method

The "Lift-Up Method" is a construction technique that raises a building while maintaining seismic strength without dismantling the existing factory structure. In this project, we received a request to increase the crane lifting height due to the aging of the existing traveling crane. First, we conducted an investigation of the seismic resistance and strength of the existing building to confirm its current seismic resistance and strength. We determined that with reinforcement, it could withstand the elevation. During construction, we connected the columns of the raised portion to the existing column tops to enhance strength, and then, using the cover build method, we installed a new roof and walls before dismantling the existing roof from the inside. As a result, the crane lifting height was increased, contributing to improved work efficiency. 【Construction Targets】 ■ There are documents such as drawings and structural calculation sheets. ■ The foundation of the existing building has sufficient strength. *For more details, please refer to the PDF materials or feel free to contact us.

  • Special Construction Method
  • others
  • Construction method

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Factory Reconstruction Method "Separate Method" [Achieving Reconstruction Without Stopping the Line]

Factory Reconstruction Method "Separate Method" [Achieving Reconstruction Without Stopping the Line]

Are you giving up on rebuilding a factory because there is no space around the existing building? It is possible to rebuild in two phases without stopping the production line!

The "Separate Construction Method" is a technique where instead of completely demolishing an existing building and then constructing a new one, the construction period is divided into two phases, allowing for the rebuilding to take place while maintaining operations. First, machinery is moved to the second phase side, and construction begins on the first phase side. After the first phase is completed, the machinery is moved back from the second phase side to the first phase side. By completing the second phase afterward, the factory can operate at full capacity without disruption. [Recommended for such factories!] ■ There is relocation space in the adjacent area ■ There is no room around the existing building ■ It is possible to plan the production line across different floors *For more details, please refer to the PDF document or feel free to contact us.

  • Special Construction Method
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  • Construction method

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Cover Build Method

Cover Build Method

A typical construction method of "rebuilding while operating"! The roof and exterior walls are installed first.

The "Cover Build Method" is one of the representative construction methods of Yoshizawa Architectural Structural Design, made possible by precise structural calculations, allowing for "reconstruction while in operation." Machines and equipment within the factory that cannot be moved are left in place, while a steel frame is assembled over the existing factory, with the roof and exterior walls installed first. After ensuring that rain and wind do not enter, the existing buildings within the new structure are gradually dismantled while the reconstruction proceeds. 【Features】 ■ Made possible by precise structural calculations ■ New buildings are constructed to cover the existing ones ■ Machines and equipment that cannot be moved within the factory are left as they are *For more details, please refer to the PDF materials or feel free to contact us.

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"Separate construction method" allows for construction to be done in halves without stopping the factory!

"Separate construction method" allows for construction to be done in halves without stopping the factory!

Recommended for factories with no space around existing buildings. You can rebuild in phases while maintaining operations.

The "Separate Construction Method" is a technique that allows for the rebuilding of a facility in phases (Phase 1 and Phase 2) without demolishing the existing building, while maintaining operations throughout the construction period. First, machinery is moved to the Phase 2 side, and construction begins on the Phase 1 side. Once Phase 1 is completed, the machinery is moved back from Phase 2 to Phase 1. After that, Phase 2 is completed, allowing the factory to operate at full capacity without any disruption. This method is recommended for factories that have no space around the existing building, and it is also possible to plan the production line across different floors. 【Features】 - Construction is done in halves without stopping the factory - Rebuilding is done in phases without demolishing the existing building - The factory can operate at full capacity without disruption - Recommended for factories with no space around the existing building - Planning the production line across different floors is possible *For more details, please refer to the PDF document or feel free to contact us.

  • Special Construction Method
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  • Construction method

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[Case Study] Lift-Up Method

[Case Study] Lift-Up Method

A construction method that raises the height without demolishing the building. The building remains as it is while the roof height is increased.

We would like to introduce a case where Denki Kogyo Co., Ltd. adopted the "Lift-Up Method." Due to the aging of the existing traveling crane, we received a request to increase the crane's lifting height. In the construction process, we connected the columns of the raised portion to the existing column heads to enhance strength, and then, using the cover build method, we installed a new roof and walls before dismantling the existing roof from the inside. As a result of this construction, the crane's lifting height was increased, allowing for more flexible crane operation, which improved work efficiency. [Case Study] ■ Challenge: Increase crane lifting height ■ Result: The crane's lifting height was increased, allowing for more flexible crane operation, which improved work efficiency. *For more details, please refer to the PDF document or feel free to contact us.

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Manhole Uplift Prevention Method "Inner Weight Method"

Manhole Uplift Prevention Method "Inner Weight Method"

Preventing manhole uplift! An environmentally friendly method that does not require road surface excavation!

The "Inner Weight Method" is an environmentally friendly construction method that does not involve excavation of the ground among weight-increasing methods. By increasing the weight inside the manhole, it prevents the manhole from floating. It can be applied to various shapes, including existing and newly constructed assembled manholes, cast-in-place manholes, square, rectangular, circular, and oval shapes. It is possible to supplement the insufficient weight when designed using excessive pore water pressure dissipation methods, weight methods, and anchor methods with inner blocks. 【Features】 ■ Simple principle ■ Reliable effect ■ Easy construction ■ Minimal construction nuisance *For more details, please refer to the PDF materials or feel free to contact us.

  • Earthquake-resistant construction method
  • Ground foundation construction method
  • Inspection hatches, manhole covers, and ditch covers
  • Construction method

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