| 围套加固石砌体小偏心受压构件正截面承载力的计算 |
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| 引用本文： | 张晶,钱永久.围套加固石砌体小偏心受压构件正截面承载力的计算[J].实验力学,2010,25(1):106-112. |
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| 作者姓名： | 张晶 钱永久 |
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| 作者单位： | 西南交通大学,土木工程学院,四川成都,610031 |
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| 基金项目： | 高等学校优秀青年教师奖励计划 |
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| 摘 要： | 针对围套加固石砌体小偏心受压构件加固后的正截面承载力计算问题,通过模型实验研究和理论推导分析,得出综合考虑加固结构不同组成材料的力学参数、二次受力特征及截面应力-应变非线性关系多种影响因素的计算方法,并通过对试件的计算,验证了此方法的可靠性。通过计算分析,本文得出试件初始应力水平对组合加固构件正截面承载力的影响曲线。曲线表明当初始应力水平指标β0.7时,正截面承载力有所增长,但增长幅度不超过5%,所以可以按照一次性受力进行承载力的计算;而当β0.7时,应力水平对承载力的影响不可忽略。随着应力水平的增长,承载力不断下降,所以在实际工程中对初应力水平较高的加固构件应进行卸载。
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| 关 键 词： | 围套加固 石砌体 正截面 承载力 计算 |
| 收稿时间： | 6/8/2009 12:00:00 AM |
| 修稿时间： | 2009/10/28 0:00:00 |
Bearing Capacity Calculation of Normal Section of Stone MasonryMembers Enclosed by Reinforced Concrete |
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| ZHANG Jing and QIAN Yong-jiu.Bearing Capacity Calculation of Normal Section of Stone MasonryMembers Enclosed by Reinforced Concrete[J].Journal of Experimental Mechanics,2010,25(1):106-112. |
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| Authors: | ZHANG Jing and QIAN Yong-jiu |
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| Institution: | ZHANG Jing,QIAN Yong-jiu(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | A calculation method considering manifold influence factors including the different mechanical material properties,the stress state existence in stone masonry and the stress-strain nonlinear relationship is given in this paper based on model experiment and theoretical analysis aiming at the bearing capacity of normal section of stone masonry members enclosed by reinforced concrete.The reliability was confirmed by analyzing the experiment.An influence curve describing the influence of existed stress level on... |
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| Keywords: | enclosed by reinforced concrete stone masonry normal section bearing capacity calculation |
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