Steel Truss Anchorage of Cast-in-Situ Foamed Concrete Wall in Earthquake-Resistant Buildings
Publication: Practice Periodical on Structural Design and Construction
Volume 23, Issue 2
Abstract
The technical specifications of Chinese standards require cast-in-situ foamed concrete nonstructural walls to be anchored by steel ties, structural reinforced cast-in-situ concrete columns, and reinforced cast-in-situ concrete ties to ensure seismic capacity. In most cases, anchorages of this kind cannot satisfy the flexibility requirement, and such technical measures are impractical because they require increased labor, high material consumption, and long treatment time. Considering this dilemma, the authors propose a new anchorage measure. In the proposed measure, the anchorage of a cast-in-situ foamed concrete nonstructural wall is provided by three-dimensional (3D) steel trusses that act as a path to transmit loads. Given the brittleness of foamed concrete, the flexibility of a nonstructural wall made of this material must be provided with correct anchorage. Appropriate flexibility is easily achieved with the 3D steel truss. The 3D steel truss is constructed by welding hot-rolled ribbed bars and cast-in foamed concrete so that bond stress between the ribbed bar and foamed concrete is enhanced.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (Grant 11272189).
References
ACI (American Concrete Institute). (2014). “Building code requirements for structural concrete.” ACI 318-14, Farmington Hills, MI.
AISC (2010). “Specification for structural steel buildings.” AISC 360-10, Chicago.
ASCE (2010). “Minimum design loads for buildings and other structures.” ASCE/SEI 7-10, Reston, VA.
Bao, S. H., and Gong, Y. Q. (2000). Structural mechanics, Wuhan Univ. of Technology, Wuhan, China
CEN (European Committee for Standardization). (2004a). “Design of concrete structures—Part 1-1: General rules and rules for buildings.” Eurocode 2, Brussels, Belgium.
CEN (European Committee for Standardization). (2004b). “Design of structures for earthquake resistance—Part 1: General rules, seismic actions and rules for buildings.” Eurocode 8, Brussels, Belgium.
CEN (European Committee for Standardization). (2005a). “Design of steel structures—Part 1-1: General rules and rules for buildings.” Eurocode 3, Brussels, Belgium.
CEN (European Committee for Standardization). (2005b). “Design of steel structures—Part 1-8: Design of joints.” Eurocode 3, Brussels, Belgium.
MHUDPRC (Ministry of Housing and Urban-Rural Development of the People’s Republic of China). (2014). “Technical specification for application of foamed concrete.” JGJ/T341-2014, Beijing (in Chinese).
Ray, H., and Jack, C. (2000). Structural mechanics, 2nd Ed. Palgrave Macmillan, Basingstoke, U.K.
Wang, Y. Y. (2008). “Lessons learnt from building damages in the Wenchuan Earthquake—Seismic concept design of buildings.” J. Build. Struct., 29(4), 20–25 (in Chinese).
Zhao, Y. (2016). “Earthquake-resistant statically determinate stairs in buildings.” Pract. Period. Struct. Des. Constr., 04016010.
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© 2018 American Society of Civil Engineers.
History
Received: Jun 7, 2017
Accepted: Oct 24, 2017
Published online: Jan 24, 2018
Published in print: May 1, 2018
Discussion open until: Jun 24, 2018
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