中美砌体结构抗震设计方法与结构性能对比分析
发布时间：2019-04-04 19:14
【摘要】：目前，在我国各个地区中，砌体结构作为最普遍的结构形式被使用于城乡建设中。历次震害资料表明，砌体结构由于其本身特点：强度低、整体性差、抗震性能差等原因，导致在地震中发生严重的破坏。关于砌体结构在地震中的破坏模式引起了学术界与工程界的高度重视，不少学者对相关问题进行了理论与试验的研究。同时，部分学者将抗震设计经验丰富和先进的国家如美国、日本和欧洲等国家的抗震设计思路和具体方法纳入到我国规范中进行对比分析研究。而关于国内外砌体结构抗震设计对比分析，只有极少部分学者做了相关研究，对于砌体结构的抗震设计对比分析需要进行更深层次的研究。 本文通过对中美砌体结构抗震设计思路和方法的对比，以中国7度0.10g区和9度区为基准，分别建立模型结构进行中美规范下砌体结构的设计。在研究了ABAQUS中相关参数设置的问题下，通过有限元软件ABAQUS对上述设计的结构进行不同地震记录的双向地震动输入，对比结构在地震作用下不同的地震动力响应，从结构开裂、裂缝分布、损伤耗能等方面来考察中美规范对砌体结构破坏模式控制方法的异同。 基于上述工作，本文得出的主要结论如下： ①在结构设计方面，美国规范中的强度设计理论更接近我国的设计理论，，比容许应力理论安全储备低。相对配筋率中国规范要比美国规范高一些，但美国规范对梁和柱加密区箍筋的配置方面比中国严格许多。 ②通过结构的地震动力时程分析，中美砌体结构在整体反应上基本上都以剪切变形为主；随着横墙间距的减小，结构的横向变形逐渐呈弯曲型变形。在地震作用下，中美砌体结构的楼层位移和层间位移都相差不大；且结构的整体损伤耗能也较接近。 ③中国规范中采用的钢筋混凝土圈梁和钢筋混凝土构造柱对结构整体性能的提高比美国规范中采用的配筋砌体圈梁和配筋砌体构造柱对结构整体性能的提高更好一些。
[Abstract]:At present, masonry structure is used in urban and rural construction as the most common structural form in every area of our country. The data of previous earthquakes show that the masonry structure is seriously damaged in the earthquake due to its own characteristics such as low strength poor integrity poor seismic performance and so on. The failure mode of masonry structure in earthquake has attracted much attention from both academic and engineering circles. Many scholars have carried out theoretical and experimental studies on related problems. At the same time, some scholars have brought the ideas and concrete methods of seismic design from countries with rich and advanced seismic design experience, such as the United States, Japan and Europe, into the code of our country for comparative analysis. However, only a few scholars have done relevant research on the comparative analysis of seismic design of masonry structures at home and abroad, and the comparative analysis of seismic design of masonry structures needs to be studied in a deeper level. Based on the comparison of anti-seismic design ideas and methods between China and the United States, based on China's 7-degree 0.10g and 9-degree zones, the model structures are established for the design of masonry structures under Sino-American codes. On the basis of studying the setting of relevant parameters in ABAQUS, the two-way ground motion input of different seismic records is carried out by using the finite element software ABAQUS, and the different seismic dynamic responses of the structure under earthquake action are compared, and the cracks of the structure are analyzed by means of the finite element software ABAQUS. Crack distribution and damage energy dissipation are used to investigate the similarities and differences of the control methods of masonry structure failure mode between China and the United States. Based on the above work, the main conclusions of this paper are as follows: (1) in terms of structural design, the strength design theory in the American Code is closer to the design theory in our country, and the safety reserve is lower than that of the allowable stress theory. The relative reinforcement ratio of Chinese code is higher than that of American code, but the configuration of stirrups of beam and column encryption area in American code is much stricter than that of China. 2 through the seismic dynamic time history analysis of the structure, the whole response of the masonry structures in China and the United States is dominated by shear deformation, and with the decrease of the distance between the transverse walls, the lateral deformation of the structure gradually shows bending deformation. Under the action of earthquake, the floor displacement and inter-story displacement of the masonry structures between China and the United States are not much different, and the energy dissipation of the whole damage of the structure is also close to that of the United States. (3) the overall performance of reinforced concrete ring beams and reinforced concrete structural columns adopted in Chinese codes is better than that of reinforced masonry ring beams and reinforced masonry structural columns adopted in American codes.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU364;TU352.11
本文编号：2454087
[Abstract]:At present, masonry structure is used in urban and rural construction as the most common structural form in every area of our country. The data of previous earthquakes show that the masonry structure is seriously damaged in the earthquake due to its own characteristics such as low strength poor integrity poor seismic performance and so on. The failure mode of masonry structure in earthquake has attracted much attention from both academic and engineering circles. Many scholars have carried out theoretical and experimental studies on related problems. At the same time, some scholars have brought the ideas and concrete methods of seismic design from countries with rich and advanced seismic design experience, such as the United States, Japan and Europe, into the code of our country for comparative analysis. However, only a few scholars have done relevant research on the comparative analysis of seismic design of masonry structures at home and abroad, and the comparative analysis of seismic design of masonry structures needs to be studied in a deeper level. Based on the comparison of anti-seismic design ideas and methods between China and the United States, based on China's 7-degree 0.10g and 9-degree zones, the model structures are established for the design of masonry structures under Sino-American codes. On the basis of studying the setting of relevant parameters in ABAQUS, the two-way ground motion input of different seismic records is carried out by using the finite element software ABAQUS, and the different seismic dynamic responses of the structure under earthquake action are compared, and the cracks of the structure are analyzed by means of the finite element software ABAQUS. Crack distribution and damage energy dissipation are used to investigate the similarities and differences of the control methods of masonry structure failure mode between China and the United States. Based on the above work, the main conclusions of this paper are as follows: (1) in terms of structural design, the strength design theory in the American Code is closer to the design theory in our country, and the safety reserve is lower than that of the allowable stress theory. The relative reinforcement ratio of Chinese code is higher than that of American code, but the configuration of stirrups of beam and column encryption area in American code is much stricter than that of China. 2 through the seismic dynamic time history analysis of the structure, the whole response of the masonry structures in China and the United States is dominated by shear deformation, and with the decrease of the distance between the transverse walls, the lateral deformation of the structure gradually shows bending deformation. Under the action of earthquake, the floor displacement and inter-story displacement of the masonry structures between China and the United States are not much different, and the energy dissipation of the whole damage of the structure is also close to that of the United States. (3) the overall performance of reinforced concrete ring beams and reinforced concrete structural columns adopted in Chinese codes is better than that of reinforced masonry ring beams and reinforced masonry structural columns adopted in American codes.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU364;TU352.11
【参考文献】
相关期刊论文 前6条
1 王理,徐伟,王静爱;中国历史地震活动时空分异[J];北京师范大学学报(自然科学版);2003年04期
2 程绍革;王亚勇;;中国建筑抗震三十年回顾与展望[J];工程建设与设计;2006年08期
3 刘劲松;刘红军;;ABAQUS钢筋混凝土有限元分析[J];装备制造技术;2009年06期
4 吕伟荣;施楚贤;;普通砖砌体受压本构模型[J];建筑结构;2006年11期
5 杨卫忠;;砌体受压本构关系模型[J];建筑结构;2008年10期
6 曾奇;林仁峰;;美国建筑结构规范体系的发展与现状[J];科技信息;2010年07期
本文编号：2454087
本文链接：https://www.wllwen.com/guanlilunwen/chengjian/2454087.html
