Connection Node Design and Performance Optimization of Girder Truss

Changtong Mei, Zeli Que, Liuliu Zhang, Feibin Wang, Yifan Gao, Weizhen Cai and Xinmeng Wang

A chapter in Sustainable Construction and Building Materials from IntechOpen

Abstract: Girder truss is a kind of high-performance truss, which is combined with some single trusses by connectors. It is the common structural form of the key-bearing node in the modern wood structure floor and roof structure system. With the development of the sponge city and green building in China, girder truss is widely used in wood structure buildings and re-roofing project for its lightweight, high strength, good seismic performance, simple construction, design flexibility, and other excellent characteristics. Since the stress environment of girder truss is more complicated than single wood truss, the wood girder truss needs higher bearing capacity. This chapter emphatically provides a theoretical basis for practical engineering and mainly introduces a new type of girder truss connected with different diameters of wood dowels. The deformation of each node in the static loading process is measured in situ and continuously by using the self-designed loading device and the advanced measuring system. Research contents include the increasing effect of girder truss than single truss and influence of different connection modes on the mechanical properties of girder trusses. We can restore the mechanical properties and failure mechanism from the two aspects of phenomena and mechanism by comparing the test results.

Keywords: girder truss; static load test; carrying capacity; anti-deformation capability; connection node design (search for similar items in EconPapers)
JEL-codes: L70 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:ito:pchaps:164170

DOI: 10.5772/intechopen.80992

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