新型型钢混凝土柱抗震性能及正截面受压承载力研究

发布时间：2018-02-14 01:50

本文关键词： 新型型钢混凝土柱抗震性能弹塑性有限元分析影响因素正截面受压承载力　出处：《西安建筑科技大学》2013年硕士论文　论文类型：学位论文

【摘要】：型钢混凝土柱是型钢混凝土框架结构中重要的受力构件，对整个型钢混凝土结构的抗震性能发挥着重要的作用。我国实际工程中主要采用普通工字型钢或H型钢SRC柱，大多数研究工作也是针对这些普通型钢混凝土柱，而对于新型型钢混凝土柱的研究还较少。随着建筑业的发展，其对结构各方面的要求也越来越高，在某些情况下传统型钢混凝土柱无法满足实际工程的需求，因此对新型截面形式SRC柱的研究工作亟需开展。本文采用数值模拟与理论分析相结合的方式对两种新型截面形式的型钢混凝土柱进行了研究，并与普通型钢混凝土柱进行了对比，体现出其优越的抗震性能及承载能力，主要研究工作如下：运用有限元分析软件ABAQUS对型钢混凝土柱进行建模，分析其在低周反复荷载作用下的抗震性能，并将软件模拟计算得到的滞回曲线、骨架曲线、延性数据等与试验数据进行对比，，验证本文所建ABAQUS模型在SRC柱非线性分析方面的可行性及适用性。在模型适用的基础上，通过改变更多参数，研究配钢形式、轴压比、腹板厚度、配箍率、加载角度等对新型型钢混凝土柱抗震性能的影响。将我国两部现行型钢混凝土规程中有关型钢混凝土柱正截面受压承载力的计算方法(强度叠加法与极限平衡法)进行对比分析，找出适合本文新型型钢混凝土柱正截面受压承载力计算的方法。根据数值模拟分析中各影响因素对新型型钢混凝土柱承载能力的不同影响，以强度叠加法为基础，提出了适合新型型钢混凝土柱正截面受压承载力的计算方法，并进行了验证。
[Abstract]:Steel reinforced concrete column (SRC) is an important force member in SRC frame structure, which plays an important role in the seismic behavior of the whole SRC structure. In our country, the common I-shaped steel or H-shaped steel SRC column is mainly used in practical projects in our country. Most of the research work is also aimed at these ordinary steel reinforced concrete columns, but there is less research on new type steel reinforced concrete columns. With the development of the construction industry, the requirements for all aspects of the structure are becoming higher and higher. In some cases, the traditional steel reinforced concrete columns can not meet the needs of practical projects, Therefore, it is urgent to develop the research on the new type of SRC columns. In this paper, two new types of steel reinforced concrete columns are studied by combining numerical simulation and theoretical analysis. Compared with ordinary steel reinforced concrete column, it shows its superior seismic performance and bearing capacity. The main research work is as follows:. The finite element analysis software ABAQUS is used to model the steel reinforced concrete column and its seismic behavior under low cyclic cyclic loading is analyzed. The hysteretic curve and skeleton curve obtained by the software simulation are calculated. By comparing the ductility data with the test data, the feasibility and applicability of the ABAQUS model in nonlinear analysis of SRC columns are verified. On the basis of the applicability of the model, the form of steel distribution and axial compression ratio are studied by changing more parameters. Web thickness, hoop ratio, The effect of loading angle on the seismic behavior of new type steel reinforced concrete columns. The calculation methods of compressive bearing capacity of normal sections of steel reinforced concrete columns (strength superposition method and limit equilibrium method) in the two existing SRC codes in China are introduced in this paper. For comparative analysis, A method for calculating the bearing capacity of the normal section of a new type of steel reinforced concrete column is found. According to the different influence factors on the bearing capacity of the new type steel reinforced concrete column in the numerical simulation analysis, the strength superposition method is used as the foundation. The calculation method of normal section bearing capacity of new type steel reinforced concrete column is put forward and verified.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU398.9;TU352.11

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