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密肋复合墙体轴心受压承载力试验与理论研究

发表时间:2010-01-31  浏览量:1954  下载量:650
全部作者: 姚谦峰,刘海涛,徐健
作者单位: 北京交通大学土木建筑工程学院
摘 要: 通过4榀1/2比例模型的密肋复合墙体在竖向荷载作用下的承载力试验,了解密肋复合墙体在竖向荷载作用下的破坏过程和特征,分析填充砌块、加载偏心、高厚比对墙体轴心受压承载力的影响。同时,在试验研究的基础上,采用弹性地基梁理论,提出密肋复合墙体在轴压作用下的力学简化模型。与试验结果对比,模型具有一定精度,为进一步研究提供了理论依据。最后,建立了密肋复合墙体轴心受压承载力计算公式,确定了考虑砌块作用的墙体稳定系数及砌块对墙体抗压强度的提高系数。
关 键 词: 结构工程;密肋复合墙体;试验研究;轴心受压
Title: Experimental and theoretical researches on axial compressive bearing capacity of multi-ribbed slab wall
Author: YAO Qianfeng, LIU Haitao, XU Jian
Organization: School of Civil Engineering, Beijing Jiaotong University
Abstract: By the bearing capacity test of four 1/2-scaled multi-ribbed composite walls, the paper finds out the failure process and characteristics, analyzes the effect of filling block, eccentric loading and depth-thickness ratio on axial compressive bearing capacity. Meanwhile, based on the experimental study, with elastic foundation beam theory, a mechanical model is suggested for multi-ribbed stab structure under axial compression. Results of the theory analysis and experiment show that the mechanical model is exact, and the mechanical model provides an important theory foundation for more development of compression capability analysis of multi-ribbed slab structure. At last, the axial compressive bearing capacity formula is given, the stability coefficient of wall considering the effect of block and the improvement factor of compressive strength considering the effect of block are also given.
Key words: structural engineering; multi-ribbed composite wall; experimental study; axial compression
发表期数: 2010年1月第2期
引用格式: 姚谦峰,刘海涛,徐健. 密肋复合墙体轴心受压承载力试验与理论研究[J]. 中国科技论文在线精品论文,2010,3(2):123-127.
 
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