Next-generation construction methods for building foundations! By directly connecting precast piles and columns using a steel frame foundation method, we achieve cost reduction and shortened construction periods.
In the conventional steel frame foundation method, after constructing a reinforced concrete foundation, steel columns of the superstructure are connected to that foundation. This method has issues such as the need for a large amount of excavated soil and backfill soil after the foundation is completed to secure the workspace for formwork, rebar work, and concrete work, as well as poor workability due to the confined working area. To solve these problems, a pile head connection method (rigid pile joint method) combining precast piles, steel foundation beams, and steel columns has been developed, and it has obtained architectural technical performance certification from the Japan Building Disaster Prevention Association. This method targets a foundation form that uses a steel beam for the foundation beam of the superstructure and a precast pile for each steel column, allowing for the omission of formwork, rebar, and concrete work by connecting the precast piles and steel columns with special steel fittings, thus enabling cost reduction and shortening of construction periods.
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basic information
This construction method involves covering the precast pile head, which is installed directly under the steel column, with a casing pipe that has an anchor plate support attached. After filling the gap between the casing pipe and the precast pile head with non-shrink mortar to integrate the casing pipe and the precast pile, an anchor plate with connection bolts is welded, and both the anchor plate and the steel column, which has the steel foundation beam attached, are integrated through connection bolts (using two methods: screw-in type and stud welding type) via non-shrink mortar. A significant feature of this method is that by welding the anchor plate on-site after installing the anchor plate support, it can absorb construction errors of the piles, which can be an issue when using steel beams for the foundation beam.
Price information
The price varies based on the design specifications. If you inquire, we will provide a personalized estimate.
Price range
P2
Delivery Time
P4
Applications/Examples of results
A steel-framed structure that employs steel beams for the foundation beams and uses one precast pile for one steel column, applicable to buildings with a total floor area of less than 10,000 m², without underground floors, and with five stories or fewer. Additionally, it is conditioned that compressive forces act at the joint between the superstructure and the pile head. The precast piles can be steel pipe piles or precast concrete piles, with usable outer diameters of 139.8 mm to 508.0 mm for steel pipe piles and 200 mm to 500 mm for precast concrete piles.
Detailed information
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The anchor plate welded to the top surface of the anchor plate receiver can absorb the construction errors of the piles, known as the construction error of the pile center, which become an issue when using steel beams for the foundation beams. This method is applicable to structures that have a foundation form using one precast pile for one steel column and employ steel beams for the foundation beams in steel structures.
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Obtained the architectural technical performance certification from the General Incorporated Association Japan Building Comprehensive Testing Institute (GBRC Performance Certification No. 15-12 Revision).
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Company information
Meister Co., Ltd. handles methods and equipment related to civil engineering construction. We offer the "A&Drock method," which allows for low-vibration and high-efficiency excavation of hard ground, as well as the automatic assembly technology for rebar cages for cast-in-place piles called "Kyoushintaro." Please feel free to contact us if you have any inquiries.