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| 预应力钢骨混凝土梁非线性分析 | |
| 引用本文： | 慕光波,王连广,周乐. 预应力钢骨混凝土梁非线性分析[J]. 四川建筑科学研究, 2010, 36(6) |
| 作者姓名： | 慕光波 王连广 周乐 |
| 作者单位： | 1. 辽宁石油化工大学石油天然气工程学院,辽宁,抚顺,113001 2. 东北大学资源与土木工程学院,辽宁,沈阳,110004 3. 沈阳大学建筑工程学院,辽宁,沈阳,110044 |
| 基金项目： | 辽宁省教育厅基金资助项目(2009A441) |
| 摘 要： | 为进一步研究预应力钢骨混凝土梁的工作性能,运用有限条带法,考虑材料非线性,编制计算程序,对其在单调荷载作用下的整个受力过程进行分析。计算得到预应力与普通钢骨混凝土梁在开裂阶段、屈服阶段、极限阶段的荷载、位移值,及混凝土强度、含钢率、有效预应力、非预应力筋配筋率对预应力钢骨混凝土梁荷载—变形关系的影响曲线。结果表明,对钢骨混凝土梁施加预应力,能显著提高构件的开裂承载力和极限承载力,但其延性有所降低;混凝土强度等级越高,梁的开裂承载力和极限承载力越大;含钢率越大,截面刚度越大,构件承载力提高越明显;开裂前阶段,非预应力筋配筋率对构件承载力的影响较小,开裂后,非预应力筋配筋率越大,梁的极限承载力越大。 |
| 关 键 词： | 预应力 钢骨混凝土 梁 非线性分析 荷载—变形曲线 |
Nonlinear analysis of prestressed steel reinforced concrete beam |
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| MU Guangbo,WANG Lianguang,ZHOU Le. Nonlinear analysis of prestressed steel reinforced concrete beam[J]. Building Science Research of Sichuan, 2010, 36(6) | |
| Authors: | MU Guangbo WANG Lianguang ZHOU Le |
| Affiliation: | MU Guangbo1,WANG Lianguang2,ZHOU Le3(1.College of Petroleum Engineering,Liaoning Shihua University,Fushun 113001,China,2.School of Resources , Civil Engineering,Northeastern University,Shenyang 110004,3.Architectural , Civil Engineering College,Shenyang University,Shenyang 110044,China) |
| Abstract: | To research more deeply,the bearing analysis under the monotone load are preceded by using finite ribbon method.Some calculation results are obtained,such as,load value and displacement value of prestressed and non-prestressed steel reinforced concrete beam in crack stage,yield stage and damage stage,as well as the curves about how concrete strength,volumetric percentage of steel,prestress,volumetric percentage of reinforced bars affect moment-curvature curves of prestressed steel reinforced concrete beam.T... |
| Keywords: | prestress steel reinforced concrete beam nonlinear analysis moment-curvature curve |
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