| 基于统一强度理论的密肋复合墙体轴心受压承载力分析 |
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| 引用本文： | 陈国新,姚谦峰,黄炜. 基于统一强度理论的密肋复合墙体轴心受压承载力分析[J]. 工业建筑, 2008, 38(1): 28-30,53 |
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| 作者姓名： | 陈国新 姚谦峰 黄炜 |
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| 作者单位： | 新疆农业大学;西安建筑科技大学,土木工程学院,西安,710055 |
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| 基金项目： | 国家自然科学基金资助项目(50578011)，中国博士后基金资助项目(2005038606)，教育部博士点专项基金资助项目(20050004013)，北京交通大学“十五”专项基金资助项目(2005ZS002)，陕西省教育厅自然科学基金资助项目(06JK256、06JK264)，陕西省自然科学基金资助项目(陕科[2004]68号) |
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| 摘 要： | 结合前期试验成果,采用考虑中间主应力σ2的影响、拉压性能不同的适用于各种材料的复杂应力状态下的双剪统一强度理论,分析密肋复合墙体中砌块对轴心受压承载力提高的原因,修正了原有的承载力计算公式,并与试验结果进行对比。结果表明:采用双剪统一强度理论修正后得到的轴心受压承载力公式计算值与原有公式相比更接近试验值,对于实际工程,具有一定的准确性和经济性;同时统一强度理论对于密肋壁板结构的理论计算有良好的适用性。
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| 关 键 词： | 双剪统一强度理论 密肋复合墙体 砌块 轴心受压承载力 |
| 收稿时间： | 2007-07-29 |
| 修稿时间： | 2007-07-29 |
ANALYSIS OF VERTICAL BEARING CAPACITY OF MULTI-RIBBED COMPOSITE WALL BASED ON THE TWIN SHEAR UNIFIED STRENGTH THEORY |
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| Chen Guoxin,Yao Qianfeng,Huang Wei. ANALYSIS OF VERTICAL BEARING CAPACITY OF MULTI-RIBBED COMPOSITE WALL BASED ON THE TWIN SHEAR UNIFIED STRENGTH THEORY[J]. Industrial Construction, 2008, 38(1): 28-30,53 |
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| Authors: | Chen Guoxin Yao Qianfeng Huang Wei |
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| Abstract: | Based on previous experimental researches,the twin shear unified strength theory is adopted,in which the influence of intermediate principal stress σ_2 is considered,and it is applied to various materials of different performance in tension and compression under complex stress state.The reason that the bearing capacity under axial compression is enhanced is analyzed,and the formula of bearing capacity under axial compression that had been established is modified.Research results show that,comparing the calculated values of the formula for bearing capacity under axial compression based on the twin shear unified strength theory and the values of the previous formula,the former are more closed to the experimental values,and can provide more accurate and economic results for practical engineering;the unified strength theory can be well applied to the theoretical calculation in multi-ribbed slab structure. |
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| Keywords: | twin shear unified strength theory multi-ribbed composite wall filled blocks bearing capacity under axial compression |
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