輕鋼龍骨內(nèi)墻與鋼框架新型連接的開發(fā)及性能研究
[Abstract]:At this stage, the state pays more and more attention to energy saving and emission reduction, and the requirements of the people for the quality and comfort of houses are also constantly improving, which requires that assembled steel structure houses should make full use of their good seismic performance and industrial construction advantages. Keep up with national policy direction and market demand. However, as far as the current situation is concerned, the development of assembled steel structure residence is not smooth. The research of wall-based enclosure system and the matching parts with housing are the main factors hindering its development. In view of this, the author studies the connection between the inner wall of light steel keel and the main body of steel structure. The inner wall of light steel keel is a composite wall composed of keel, panel and rock wool, in which the vertical keel plays a supporting role, the two sides of the face plate and the vertical keel are fixed with tapping screws, and the middle cavity is filled with sound absorbing material to meet the requirements of sound insulation performance of the inner wall. Light steel keel interior wall is light, high strength, good plasticity, good toughness, flexible arrangement, and saves a lot of clay resources. It is a kind of energy-saving and environmental protection wall, which fully embodies the concept of green building. In this paper, a new joint structure form between the top of the light steel keel interior wall and the steel beam or floor is designed, and the new connection structure form between the bottom of the light steel keel inner wall and the ground is designed, and the calculation method of the joint width between the wall board and the main body is determined. The stress calculation of the two new connections is carried out, and the influence of seismic action and relative displacement of the support on the connection is mainly taken into account, and the shear capacity of the weld of the top U-shaped connector and the expansion bolt at the bottom is checked and calculated. The results show that the weld bearing capacity of U-shaped connectors and the shear capacity of expansion bolts at the bottom meet the requirements. The finite element simulation analysis of the stress state between U-shaped connector and vertical keel under the action of relative displacement between layers is carried out by using the finite element software ABAQUS. The change curve of contact reaction force and contact area between U-shaped connector and vertical keel and the stress curve of each part are obtained. The results show that the damage of the joint between U-shaped joint and vertical keel is mainly concentrated on the vertical keel. The finite element analysis model of light steel keel inner wall under new connection is established by using finite element software ABAQUS. The deformation and stress change of light steel keel inner wall and joint under uniform load and interlaminar displacement are analyzed respectively. The results show that the bearing capacity of the wall meets the requirements of the Code for the Design of Steel structure Houses under the action of uniform load outside the plane. Under the action of the displacement between the outer layers of the plane, the wall under the new connection can adapt to the elastic interlaminar displacement limit of the small seismic frame structure and the elastic-plastic interlaminar displacement limit of the frame structure under the large earthquake.
【學位授予單位】:沈陽建筑大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:TU391
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