Study Of Lateral Performance Of Irregular Wood Shear Wall

Wood frame construction has been used in the United States, Canada and other areas widely. Its advantages consist in lightweight, high strength, energy saving, environment friendly, good aseismic performance etc. At present, there are thousands of wood frame buildings fabricated in Beijing, Shanghai, Dalian, Hangzhou, Suzhou, etc. The complementarity of the chapter of "Wood frame construction" in the 《Code for Design of Timber Structures》 (GB50005-2003) in our country will create the essential condition for the application and development of the wood frame construction in China. Estimation of deflection is an important part of building design when the object is to limit earthquake or wind damage. Wood shear walls provide the majority of the lateral force resistance in light-frame wood construction. However, while some building codes provide methods for estimating shear wall deflections, these methods are not adequate for shear walls without hold-downs, sheathed on both side and no blocking.The main trarget of this dissertation is to provide methods for estimating these shear wall deflections, as follows of its main contents: The concept of wood shear wall, some achievements on research of lateral behavior of shear wall are introduced in the first chapter. Different loading protocols and definiens of lateral performance about wood shear wall are introduced in the second chapter. The third and fourth chapter are the kernel parts of this dissertation, different lateral load - slip equations for nailed joint are disscussed, a new lateral load - slip equation is proposed according to test results and the four-term equation provided in the Uniform Building Code (UBC) is extended which can be used to estimate deflections for shear walls without hold-downs, sheathed on both sides and no blocking, give values which compare well with test results. The finite element analysis (FEA) modeling procedure is introduced and results of nueration with ANSYS to different wood shear walls are presented in the fifth chapter. The last chapter includes the conlusion and prospect.