| Due to the convenience of materials,simple structure,low cost and other advantages,the traditional wooden frame structure in the world has been widely used.In China,most of the buildings in the history of the building for the wooden structure,the traditional Chinese wooden structure is divided into two kinds of post-and-lintel construction and Chuan-Dou style wood construction,both wood frame structure.Among them,the post-and-lintel construction is larger,larger spacing,suitable for the construction of relatively large span of the structure,mainly used in northern China’s public buildings,such as temples,royal palace,etc.;and Chuan-Dou style wood construction cross-It is the most common form of residential building in the south of China.It is mainly used for the following three types of buildings.It is the most common structure of residential buildings in southern China.Of the residential buildings.The Chuan-Dou style wood construction has also spread to other parts of East Asia and has profoundly influenced the style of residential buildings in East Asia.So far,there are still many buildings in the south of China and other parts of East Asia.Structure and similar structural forms.Types damage of the Chuan-Dou style wood houses,which have been found in the past earthquakes,include the frictional sliding at the column base,the fracture at timber beam end,the pull-out of the tenon from the mortise and lateral displacement and greater influence stability and structural integrity.Faced with the above problems,the majority of rural areas of wearing a bucket of housing in urgent need of effective reinforcement measures to reduce the earthquake to the people brought about by the loss of life and property.The Chuan-Dou style wooden structure is an important structural form of traditional Chinese wood structure,which is formed by two-way orthogonal tenon-connected flat wood frame.It is the basic unit in the anti-lateral force system of the bucket-type wooden structure.In this paper,a total of 4 full-length single-layer double-Buoyant wood frame(pure frame,frame filled bamboo wall,frame filled with light wood shear wall)were studied in low cycle,and the ultimate bearing capacity,stiffness characteristic,energy dissipation capacity and deformation of the bucket type wooden frame were analyzed Ability and damage damage characteristics.The main conclusions are as follows:1 Due to the small rotational stiffness of the straighted tenon joints,the rotational ability is strong,and the force of the bucket type pure frame under the horizontal load shows obvious semi-rigid frame characteristics,and the frame can develop a large lateral movement.When the frame is moved sideways,the relative angle of the beam and column is substantially equal to the lateral displacement of the floor,and the column in the frame rotates around the edge of the column to show the swing column characteristics.2 The Chuan-Dou style wood construction pure frame has a certain seismic capacity,its deformation capacity,energy consumption performance,strength degradation of the seismic performance is better,but its ultimate bearing capacity and stiffness are very low.3 The ultimate bearing capacity and rigidity of the Chuan-Dou style wood construction can be improved obviously,but the ultimate bearing capacity and rigidity of the Chuan-Dou style wood construction after filling the bamboo wall are still significantly lower than those of other traditional wood Framework.4 Wooden shear wall filled with bucket-style wooden frame,wearing a bucket-style wooden frame can effectively restrain the skeleton of the wooden shear wall components,to avoid the wooden shear wall prone to the end of the wall column pull up and other failure mode,Wearing a bucket-type wooden frame in the components and nodes also did not cause premature failure due to filling the wall.Compared with the pure frame,the ultimate bearing capacity and rigidity of the wooden frame are obviously improved.At the same time,the performance of the wood shear wall can be improved by changing the parameter design of the wood shear wall Control,in engineering applications,the wood shear wall as a filling wall instead of the traditional filling wall can be used as an effective seismic reinforcement measures. |
