構造工学研究所 List of Products and Services

The parent-child filler Q type is the only type among parent-child fillers that can transmit shear forces to anchor bolts in primary and secondary designs. To achieve this, a dedicated grout material called OF-Q grout is used in addition to the steel parent and child fillers. Furthermore, the shear force that can be transmitted is 70% of the allowable shear strength of the anchor bolts used, so if this limit is exceeded, the size of the anchor bolts must be increased or the number of bolts must be increased to accommodate it. The applicable anchor bolts range from M12 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler Q, so for design, please refer to the "Q Type Design and Construction Standard Drawings" and "Design Manual," and for construction, please refer to the various "Construction Manuals." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The parent-child filler type S has the same functions as type L, but it cannot transmit the shear force acting on the column base to the bolts in the primary and secondary design. Applicable anchor bolts range from M52 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions for the parent-child filler type S, so please refer to the "S Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The parent-child filler L type can be treated as equivalent to the general exposed column base specified in the Ministry of Construction Notification No. H12-1456. The applicable anchor bolts range from M16 to M48, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler L, so please refer to the "L Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The "parent-child filler" consists of two steel components of different sizes, each with an eccentric hole. By using this in the base of steel columns, there is no need for corrective measures such as "straightening the anchor bolts" or "enlarging the base plate holes," allowing for the installation of steel columns with precision without damaging the important building components of anchor bolts and base plates. The corresponding anchor bolt sizes range from M12 to M80. 【Four Types】 ■ Parent-child filler L type (OF-L) with performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of Heisei 12. ■ Parent-child filler S type (OF-S) compatible with large diameters M52 to M80. ■ Parent-child filler K type (OF-K) specifically for stairs. ■ Parent-child filler Q type (OF-Q) that can transmit shear forces to the anchor bolts. *For more details, please download the PDF or contact us.

• Steel construction

The Parent-Child Filler Q type is the only type among parent-child fillers that can transmit shear forces to anchor bolts in both primary and secondary designs. To achieve this, a dedicated grout material called OF-Q grout is used in addition to the steel parent and child fillers. Furthermore, the shear force that can be transmitted is 70% of the allowable shear strength of the anchor bolts used; if this limit is exceeded, the size or number of anchor bolts must be increased accordingly. The applicable anchor bolts range from M12 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the Parent-Child Filler Q, so for design, please refer to the "Q Type Design and Construction Standard Drawings" and the "Design Manual," and for construction, please refer to the various "Construction Manuals." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The parent-child filler type S has the same functions as type L, but it cannot transmit the shear force acting on the column base to the bolts in the primary and secondary design. Applicable anchor bolts range from M52 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions for the parent-child filler type S, so please refer to the "S Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The parent-child filler L type can be treated as equivalent to the general exposed column base specified in the Ministry of Construction Notification No. H12-1456. The applicable anchor bolts range from M16 to M48, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler L, so please refer to the "L Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The "parent-child filler" consists of two steel components of different sizes, each with an eccentric hole. By using this in the base of steel columns, there is no need for corrective measures such as "straightening the anchor bolts" or "enlarging the base plate holes," allowing for the installation of steel columns with precision without damaging the important building components of anchor bolts and base plates. The corresponding anchor bolt sizes range from M12 to M80. 【Four Types】 ■ Parent-child filler L type (OF-L) with performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of 2000. ■ Parent-child filler S type (OF-S) compatible with large diameters M52 to M80. ■ Parent-child filler K type (OF-K) specifically for stairs. ■ Parent-child filler Q type (OF-Q) that can transmit shear forces to the anchor bolts. *For more details, please download the PDF or contact us.

• Steel construction

The parent-child filler Q type is the only type among parent-child fillers that can transmit shear force to anchor bolts in primary and secondary design. To achieve this, a dedicated grout material called OF-Q grout is used in addition to the steel parent and child fillers. Furthermore, the shear force that can be transmitted is 70% of the allowable shear strength of the anchor bolts used, so if this is exceeded, the size or number of anchor bolts must be increased accordingly. The applicable anchor bolts range from M12 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler Q, so for design, please refer to the "Q Type Design and Construction Standard Drawings" and "Design Manual," and for construction, please refer to various "Construction Manuals." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The parent-child filler type S has the same functions as type L, but it cannot transmit the shear force acting on the base of the column to the bolts in the primary and secondary design. Applicable anchor bolts range from M52 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions for the parent-child filler type S, so please refer to the "S Type Design and Construction Standard Drawings" and "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The parent-child filler L type can be treated as equivalent to the general exposed column base specified in the Ministry of Construction Notification No. H12-1456. The applicable anchor bolts range from M16 to M48, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler L type, so please refer to the "L Type Design and Construction Standard Drawings" and "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The "parent-child filler" consists of two steel components of different sizes, each with an eccentric hole. By using this in the base of steel columns, it eliminates the need for corrective measures such as "straightening the anchor bolts" or "enlarging the base plate holes," allowing for the installation of steel columns with precision without damaging the important building components of anchor bolts and base plates. The corresponding anchor bolt sizes range from M12 to M80. 【Four Types】 ■ Parent-child filler L type (OF-L) with performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of 2000. ■ Parent-child filler S type (OF-S) compatible with large diameters M52 to M80. ■ Parent-child filler K type (OF-K) specifically for stairs. ■ Parent-child filler Q type (OF-Q) that can transmit shear forces to the anchor bolts. *For more details, please download the PDF or contact us.

• Steel construction

The "Parent-Child Filler" is a steel filling material that can fill the clearance between anchor bolts and anchor holes. By inserting and rotating the parent filler and child filler respectively, it can accommodate from 0mm of eccentricity to the maximum eccentric position of the anchor bolt. By resolving misalignment, it reduces rework such as "leveling," contributing to shortened construction periods. 【4 Types Available】 ■ "OF-L Type," which has performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of Heisei 12. ■ "OF-S Type," which accommodates large diameters from M52 to M80. ■ "OF-K Type," specifically for stairs. ■ "OF-Q Type," which can transmit shear force to the anchor bolt. *For more details, please refer to the materials. Feel free to contact us with any inquiries. If you would like a sample, please get in touch.

• Paving Materials
• Special Construction Method

The Parent-Child Filler Q type is the only type among parent-child fillers that can transmit shear force to anchor bolts in primary and secondary designs. To achieve this, a specialized grout material called OF-Q grout is used in addition to the steel parent and child fillers. Furthermore, the shear force that can be transmitted is 70% of the allowable shear strength of the anchor bolts used; if this is exceeded, the size or number of anchor bolts must be increased to accommodate it. Applicable anchor bolts range from M12 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the Parent-Child Filler Q, so for design, please refer to the "Q Type Design and Construction Standard Drawings" and the "Design Manual," and for construction, please refer to the various "Construction Manuals." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The parent-child filler type S has the same functions as type L, but it cannot transmit the shear force acting on the base of the column to the bolts in the primary and secondary design. Applicable anchor bolts range from M52 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler type S, so please refer to the "S Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The parent-child filler L type can be treated as equivalent to the general exposed column base specified in the Ministry of Construction Notification No. H12-1456. The applicable anchor bolts range from M16 to M48, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler L type, so please refer to the "L Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.*

• Steel construction

The parent-child filler type K is a parent-child filler specifically for stairs. The applicable ABt is only two types: M16 and M20. It is characterized by a larger installation tolerance range for ABt compared to OF-L (OF-S), approximately twice the value. As a design condition, it is specified that no tensile force should be applied to ABt. Shear force is treated in the same manner as OF-S. There are specific conditions unique to the parent-child filler K, so please refer to the "K Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.*

• Steel construction

The "parent-child filler" consists of two steel components of different sizes, each with an eccentric hole. By using this in the base of steel columns, there is no need for corrective measures such as "straightening the anchor bolts" or "enlarging the base plate holes," allowing for the installation of steel columns with precision without damaging the important building components, namely the anchor bolts and base plates. The corresponding anchor bolt sizes range from M12 to M80. 【Four Types】 ■ Parent-child filler L type (OF-L) with performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of Heisei 12. ■ Parent-child filler S type (OF-S) compatible with large diameters M52 to M80. ■ Parent-child filler K type (OF-K) specifically for stairs. ■ Parent-child filler Q type (OF-Q) capable of transmitting shear forces to the anchor bolts. *For more details, please download the PDF or contact us.

• Steel construction

The parent-child filler Q type is the only type among parent-child fillers that can transmit shear force to anchor bolts in primary and secondary designs. To achieve this, a special grout material called OF-Q grout is used in addition to the steel parent and child fillers. Furthermore, the shear force that can be transmitted is 70% of the allowable shear strength of the anchor bolts used, so if this is exceeded, the size of the anchor bolts must be increased or the number of bolts must be increased to accommodate it. The applicable anchor bolts range from M12 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler Q, so for design, please refer to the "Q Type Design and Construction Standard Drawings" and the "Design Manual," and for construction, please refer to the various "Construction Manuals." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler type S has the same functions as type L, but it cannot transmit the shear force acting on the column base to the bolts in the primary and secondary design. Applicable anchor bolts range from M52 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions for the parent-child filler type S, so please refer to the "S Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler L type can be treated as equivalent to the general exposed column base specified in the Ministry of Construction Notification No. H12-1456. The applicable anchor bolts range from M16 to M48, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler L, so please refer to the "L Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler type K is a parent-child filler specifically for stairs. The applicable ABt is only two types: M16 and M20. It is characterized by a larger installation tolerance range for ABt compared to OF-L (OF-S), approximately double the value. As a design condition, it is specified that no tensile force should be applied to ABt. Shear force is treated similarly to OF-S. There are specific conditions unique to the parent-child filler K, so please refer to the "K Type Design and Construction Standard Drawings" and "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.*

• Steel construction

The "parent-child filler" consists of two steel components of different sizes, each with an eccentric hole. By using this in the base of steel columns, it eliminates the need for corrective measures such as "straightening the anchor bolts" or "enlarging the base plate holes," allowing for the precise installation of steel columns without damaging the important building components of anchor bolts and base plates. The corresponding anchor bolt sizes range from M12 to M80. 【Four Types】 ■ Parent-child filler L type (OF-L) with performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of Heisei 12. ■ Parent-child filler S type (OF-S) compatible with large diameters M52 to M80. ■ Parent-child filler K type (OF-K) specifically for stairs. ■ Parent-child filler Q type (OF-Q) capable of transmitting shear forces to the anchor bolts. *For more details, please download the PDF or contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler Q type is the only type among parent-child fillers that can transmit shear force to anchor bolts in primary and secondary designs. To achieve this, a dedicated grout material called OF-Q grout is used in addition to the steel parent and child fillers. Furthermore, the shear force that can be transmitted is 70% of the allowable shear strength of the anchor bolts used; if this limit is exceeded, the size or number of anchor bolts must be increased to accommodate it. The applicable anchor bolts range from M12 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler Q, so for design, please refer to the "Q Type Design and Construction Standard Drawings" and the "Design Manual," and for construction, please refer to the various "Construction Manuals." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler type S has the same functions as type L, but it cannot transmit the shear force acting on the column base to the bolts in the primary and secondary design. Applicable anchor bolts range from M52 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler type S, so please refer to the "S Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler L type can be treated as equivalent to the general exposed column base specified in the Ministry of Construction Notification No. H12-1456. The applicable anchor bolts range from M16 to M48, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler L type, so please refer to the "L Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The "parent-child filler" consists of two steel components of different sizes, each with an eccentric hole. By using this in the base of steel columns, it eliminates the need for corrective measures such as "leveling the anchor bolts" or "enlarging the base plate holes," allowing for the installation of steel columns with precision without damaging the important building components of anchor bolts and base plates. The corresponding anchor bolt sizes range from M12 to M80. 【Four Types】 ■ Parent-child filler L type (OF-L), which has performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of 2000. ■ Parent-child filler S type (OF-S), which accommodates large diameters from M52 to M80. ■ Parent-child filler K type (OF-K), specifically for stairs. ■ Parent-child filler Q type (OF-Q), which can transmit shear forces to the anchor bolts. *For more details, please download the PDF or contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler Q type is the only type among parent-child fillers that can transmit shear force to anchor bolts in primary and secondary design. To achieve this, a dedicated grout material called OF-Q grout is used in addition to the steel parent and child fillers. Furthermore, the shear force that can be transmitted is 70% of the allowable shear strength of the anchor bolts used, so if this is exceeded, the size or number of anchor bolts must be increased to accommodate it. The applicable anchor bolts range from M12 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler Q, so for design, please refer to the "Q Type Design and Construction Standard Drawings" and "Design Manual," and for construction, please refer to the various "Construction Manuals." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler type S has the same functions as type L, but it cannot transmit the shear force acting on the column base to the bolts in the primary and secondary design. Applicable anchor bolts range from M52 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions for the parent-child filler type S, so please refer to the "S Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler L type can be treated as equivalent to the general exposed column base specified in the Ministry of Construction Notification No. H12-1456. The applicable anchor bolts range from M16 to M48, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler L type, so please refer to the "L Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The "parent-child filler" consists of two steel components of different sizes, each with an eccentric hole. By using this in the base of steel columns, there is no need for corrective measures such as "straightening the anchor bolts" or "enlarging the base plate holes," allowing for the installation of steel columns with precision without damaging the important building components, which are the anchor bolts and base plates. The corresponding anchor bolt sizes range from M12 to M80. 【Four Types】 ■ Parent-child filler L type (OF-L) with performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of 2000. ■ Parent-child filler S type (OF-S) compatible with large diameters M52 to M80. ■ Parent-child filler K type (OF-K) specifically for stairs. ■ Parent-child filler Q type (OF-Q) that can transmit shear forces to the anchor bolts. *For more details, please download the PDF or contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The "parent-child filler" consists of two steel components of different sizes, each with an eccentric hole. By using this in the base of steel columns, there is no need for corrective measures such as "straightening the anchor bolts" or "enlarging the base plate holes," allowing for the installation of steel columns with precision without damaging the important architectural components of anchor bolts and base plates. The corresponding anchor bolt sizes range from M12 to M80. 【Four Types】 ■ Parent-child filler L type (OF-L) with performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of 2000. ■ Parent-child filler S type (OF-S) compatible with large diameters M52 to M80. ■ Parent-child filler K type (OF-K) specifically for stairs. ■ Parent-child filler Q type (OF-Q) capable of transmitting shear forces to the anchor bolts. *For more details, please download the PDF or contact us.

• Steel construction

The parent-child filler L type can be treated as equivalent to the general exposed column base specified in the Ministry of Construction Notification No. H12-1456. The applicable anchor bolts range from M16 to M48, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler L, so please refer to the "L Type Design and Construction Standard Drawings" and "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.*

• Steel construction

The parent-child filler type S has the same functions as type L, but it cannot transmit the shear force acting on the base of the column to the bolts in the primary and secondary design. Applicable anchor bolts range from M52 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions for the parent-child filler type S, so please refer to the "S Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The parent-child filler type K is a parent-child filler specifically for stairs. The applicable ABt is only two types: M16 and M20. It is characterized by a larger installation tolerance range for ABt compared to OF-L (OF-S), approximately double the value. As a design condition, it is specified that no tensile force should be applied to ABt. Shear force is treated similarly to OF-S. There are specific conditions unique to the parent-child filler K, so please refer to the "K Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.*

• Steel construction

The Parent-Child Filler Q type is the only type among parent-child fillers that can transmit shear force to anchor bolts in primary and secondary design. To achieve this, a dedicated grout material called OF-Q grout is used in addition to the steel parent and child fillers. Furthermore, the shear force that can be transmitted is 70% of the allowable shear strength of the anchor bolts used, so if this is exceeded, the size or number of anchor bolts must be increased to accommodate it. The applicable anchor bolts range from M12 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions for the Parent-Child Filler Q, so for design, please refer to the "Q Type Design and Construction Standard Drawings" and "Design Manual," and for construction, please refer to the various "Construction Manuals." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction

The "parent-child filler" consists of two steel components of different sizes, each with an eccentric hole. By using this in the base of steel columns, there is no need for corrective measures such as "straightening the anchor bolts" or "enlarging the base plate holes," allowing for the installation of steel columns with precision without damaging the important architectural components of the anchor bolts and base plates. The corresponding anchor bolt sizes range from M12 to M80. 【Four Types】 ■ Parent-child filler L type (OF-L) with performance equivalent to exposed column bases as specified in the Ministry of Construction Notification No. 1456 of Heisei 12. ■ Parent-child filler S type (OF-S) compatible with large diameters M52 to M80. ■ Parent-child filler K type (OF-K) specifically for stairs. ■ Parent-child filler Q type (OF-Q) that can transmit shear forces to the anchor bolts. *For more details, please download the PDF or contact us.

• Steel construction

The parent-child filler L type can be treated as equivalent to the general exposed column base specified in the Ministry of Construction Notification No. H12-1456. The applicable anchor bolts range from M16 to M48, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler L type, so please refer to the "L Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler type S has the same functions as type L, but it cannot transmit the shear force acting on the base of the column to the bolts in the primary and secondary design. The applicable anchor bolts range from M52 to M80, and steel grades with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the parent-child filler type S, so please refer to the "S Type Design and Construction Standard Drawings" and the "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.*

• Steel construction
• Special Construction Method
• Structural Design Office

The parent-child filler type K is a parent-child filler specifically for stairs. The applicable ABt is only two types: M16 and M20. It is characterized by a larger installation tolerance range for ABt compared to OF-L (OF-S), approximately double the value. The design condition stipulates that no tensile force should be applied to ABt. Shear force is treated similarly to OF-S. There are specific conditions unique to the parent-child filler K, so please refer to the "K Type Design and Construction Standard Drawings" and "Design Manual." *For more details, please refer to the PDF materials or feel free to contact us.*

• Steel construction

The Parent-Child Filler Q type is the only type among parent-child fillers that can transmit shear forces to anchor bolts in primary and secondary design. To achieve this, a dedicated grout material called OF-Q grout is used in addition to the steel parent and child fillers. Furthermore, the shear force that can be transmitted is 70% of the allowable shear strength of the anchor bolts used, so if this is exceeded, the size or number of anchor bolts must be increased to accommodate it. The applicable anchor bolts range from M12 to M80, and steel types with a tensile strength of 490 N/mm² or less can be used. There are specific conditions unique to the Parent-Child Filler Q, so for design, please refer to the "Q Type Design and Construction Standard Drawings" and the "Design Manual," and for construction, please refer to the various "Construction Manuals." *For more details, please refer to the PDF materials or feel free to contact us.

• Steel construction
• Special Construction Method
• Structural Design Office