Mechanical behaviour of connections between CLT panels under monotonic and cyclic loading

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Xiong, H.B.^1 ; Huynh, A.^1,2

College of Civil Engineering, Tongji University, Shanghai

200092, China^1

Department of Civil Engineering and Urban Planning, National Institute of Applied Sciences of Lyon, Villeurbanne

69621, France^2

关键词: Brittle behaviours;    Design suggestions;    Equivalent damping ratios;    Experimental research;    Force-displacement curves;    Mechanical behaviour;    Monotonic and cyclic loading;    Self-tapping screws;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/4/042014/pdf
DOI  :  10.1088/1755-1315/153/4/042014

来源: IOP

【 摘 要 】

The experimental research presented in this paper investigates the mechanical behaviour of commercial metal connections in three-ply Chinese-manufactured cross-laminated timber (CLT) panels. Monotonic and cyclic loading tests were conducted at Tongji University on angle bracket and joints with inclined self-tapping screws. According to the standard EN 12512, the force-displacement curves are exploited to assess the mechanical properties of the connections such as the strength capacity, yielding point, ductility and equivalent damping ratios. From the test results, the main load-carrying direction of the angle bracket is shear direction but the connection exhibits more ductile and dissipative behaviour in tension direction. In general, screwed joints demonstrate relatively brittle behaviour except in the case of shear wall-to-wall connection. Based on the capacity-based design principles, the experimental results and the failure modes are discussed to propose some design suggestions.