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| 基于统一强度理论的密肋复合墙体开裂荷载计算 | |
| 引用本文： | 黄炜,陈国新,姚谦峰,俞茂宏,荆罡.基于统一强度理论的密肋复合墙体开裂荷载计算[J].工程力学,2008,25(7). |
| 作者姓名： | 黄炜 陈国新 姚谦峰 俞茂宏 荆罡 |
| 作者单位： | 1. 西安建筑科技大学土木工程学院,陕西,西安,710055;西安交通大学土木工程系,陕西,西安,710049 2. 西安交通大学土木工程系,陕西,西安,710049 3. 西安建筑科技大学土木工程学院,陕西,西安,710055 |
| 基金项目： | 第三十八期中国博士后基金项目 , 陕西省自然科学基金研究项目 , 陕西省教育厅自然科学专项基金项目06JK264) , 陕西省教育厅自然科学专项基金项目 |
| 摘 要： | 通过对密肋复合墙体进行水平低周反复加载试验研究,介绍墙体的主要破坏过程和受力特点;采用考虑中间主应力σ2影响、拉压性能不同且适用于各种材料复杂应力状态下的双剪统一强度理论,推导出墙体初始开裂荷载的实用计算公式,并与采用最大拉应力理论所得到的计算值进行对比分析。结果表明:采用双剪统一强度理论得到的开裂荷载值与采用最大拉应力理论的计算值相比更接近试验值,对于实际工程,具有一定的准确性、经济性与适用性。 |
| 关 键 词： | 密肋壁板结构 密肋复合墙体 双剪统一强度理论 最大拉应力理论 开裂荷载 |
CALCULATION ON CRACKING LOAD OF MULTI-RIBBED COMPOSITE WALL BASED ON TWIN SHEAR UNIFIED STRENGTH THEORY |
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| HUANG Wei,CHEN Guo-xin,YAO Qian-feng,YU Mao-hong,JING Gang.CALCULATION ON CRACKING LOAD OF MULTI-RIBBED COMPOSITE WALL BASED ON TWIN SHEAR UNIFIED STRENGTH THEORY[J].Engineering Mechanics,2008,25(7). | |
| Authors: | HUANG Wei CHEN Guo-xin YAO Qian-feng YU Mao-hong JING Gang |
| Affiliation: | HUANG Wei 1,2,CHEN Guo-xin 1,3,YAO Qian-feng 1,YU Mao-hong 2,JING Gang 1 |
| Abstract: | Based on the low-frequency cyclic lateral loading experimental study of multi-ribbed composite wall, the paper describes the main failure processes and mechanical properties of the walls.The twin shear unified strength theory that can describe the behavior of various materials subject to complex stress states is applied in this paper and the influence of the intermediate principal stressσ2 is considered.The practical computing formulas for the wall’s primary cracking load based on the theory above and the maximum tensile stress theory are comparably analyzed.The comparison results show that the former is more comparable with the experimental results. |
| Keywords: | multi-ribbed slab structure multi-ribbed composite wall twin shear unified strength theory maximum tensile stress theory cracking load |
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