剪力墙结构与短肢剪力墙结构性能比较分析

发布时间：2018-01-06 13:36

本文关键词：剪力墙结构与短肢剪力墙结构性能比较分析　出处：《辽宁科技大学》2013年硕士论文　论文类型：学位论文

【摘要】：剪力墙结构在高层结构如民用住宅、写字楼和旅馆应用特别广泛，它的优点是整体性好、刚度大，具有较强的抵抗高层结构中风的吹力和吸力引起的水平力和地震作用传来的水平剪力的能力。并且能够很好的承担高层结构中较大的竖向荷载。但随着剪力墙结构研究和应用的日益广泛，结构设计工作者们发现剪力墙结构也有相当多的缺点如钢筋混凝土墙体较多，上部墙体均为双层双向配筋，增加了混凝土和钢筋的用量；限制了墙体间的距离，使得空间灵活性差；由于剪力墙结构抗侧力刚度较大，使得结构的延性差，结构自振周期减小，结构有较大的地震反应。结构设计者们发现将剪力墙的肢端长度缩短，使之变成短肢剪力墙，形成短肢剪力墙结构能够克服以上缺点。《高规》对短肢剪力墙结构具有如下规定：在规定的水平地震作用下，短肢剪力墙承担的底部倾覆力矩不宜大于结构底部总地震倾覆力矩的50%且不小结构总地震倾覆力矩的30%。短肢剪力墙结构具有能充分利用墙体的承载能力、空间布置灵活性强、延性好等优点，在高层剪力墙结构中应用日益广泛。本文通过鞍山市某小区住宅楼工程实例，对剪力墙结构与短肢剪力墙结构进行比较。首先对该住宅楼做短肢剪力墙结构方案设计，通过Satwe软件对其进行计算分析，得出短肢剪力墙的变形特性，内力特性，周期特性分析结果和结构的配筋图。然后在同样的工程条件及荷载条件下设计一套剪力墙结构设计方案。并同样通过软件计算分析，得出关键数据后，同短肢剪力墙设计方案比较优缺点，得出短肢剪力墙结构具有受力更加合理，整个建筑荷载比原来减少了101.676吨，X向水平地震力减少182.34KN，Y向水平地震力减少145.09KN，剪重比降低；结构层间位移角比值充分接近了限值1/1000，延续性好，，抗震性能好，空间布置灵活。但是在经济效益方面，剪力墙结构比短肢剪力墙好，同样的“L”形、“T”形墙形式，短肢剪力墙结构用钢量比剪力墙结构增加了约14%，造价增高。
[Abstract]:The shear wall structure in high-rise structures such as residential, office and hotel is widely used, it has the advantages of good integrity, high stiffness, shear horizontal force resistant ability of high-rise structure strong wind force and stroke of the suction caused by the earthquake and coming. And can be very good to bear large vertical loads in high-rise structure. But with the research and application of shear wall structure is more and more widely, the structure design of shear wall structure workers find there are a lot of shortcomings such as reinforced concrete wall of upper wall are double two-way reinforcement, increase concrete reinforcement; limit wall distance the space of flexibility; because the lateral shear walls structure stiffness and poor ductility of the structure, reduce the structural vibration period, structure seismic response of large structures. The designers will shear Wall limb shortening to make it into a short shear wall, the formation of short pier shear wall structure can overcome the above disadvantages. High regulation > has the following provisions of the short shear wall structure in horizontal earthquake action provisions under the bottom of the short leg shear wall bear overturning moment should not be greater than the total structure of the bottom overturning moment 50% and small structure seismic overturning moment 30%. short pier shear wall structure can make full use of the carrying capacity of the wall, the space layout flexibility, good ductility and other advantages, is widely used in the high-rise shear wall structure.
In this paper, through the example of residential building in a district of Anshan City, to compare the shear wall structure and shear wall structure. The design of short shear wall structure scheme of the residential building, through the Satwe software analysis, the deformation characteristics of the short shear wall, internal force characteristics, analysis of reinforcement plans the structure and cycle characteristics. Then design a set of shear wall structure design in the same engineering conditions and load conditions. And also through the calculation analysis software, obtains the key data, with the design of short shear wall and compare their advantages and disadvantages, the short leg shear wall structure has more reasonable stress, the whole building load less than the original 101.676 tons, X to 182.34KN Y to reduce the horizontal seismic force, horizontal seismic force to reduce 145.09KN, shear weight ratio decreased; the structural layer displacement angle ratio was sufficiently close to the limit of 1/1000, a continuation of good resistance The seismic performance is good, and the space layout is flexible. But in terms of economic efficiency, the shear wall structure is better than the short leg shear wall, the same "L" shape and "T" form, the steel volume of the short leg shear wall structure is increased by about 14% compared with the shear wall structure, and the cost is increased.

【学位授予单位】：辽宁科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU973.2

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