| 带裂缝钢筋混凝土梁振动特性变刚度模型分析 |
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| 引用本文： | 周凌,程华,张鹏梁. 带裂缝钢筋混凝土梁振动特性变刚度模型分析[J]. 后勤工程学院学报, 2009, 25(2): 5-8,17 |
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| 作者姓名： | 周凌 程华 张鹏梁 |
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| 作者单位： | 后勤工程学院,军事建筑工程系,重庆,400041;总参谋部,管理保障部,北京,100082 |
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| 摘 要： | 按常规等刚度、匀质线性材料来考虑开裂后的钢筋混凝土梁，必然带来较大的误差，与实际情况存在较大差距。基于条带法提出了建立带裂缝钢筋混凝土梁的变刚度模型分析方法，对考虑开裂和材料非线性的钢筋混凝土简支梁的振动特性进行了理论计算和试验研究。结果表明：提出的方法从理论上可以得到既有钢筋混凝土简支梁的振动特性、裂缝开展情况等参数，理论计算结果与试验结果吻合较好，且精度较高，具有良好的可行性和工程适用性。
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| 关 键 词： | 条带法 裂缝 变刚度模型 钢筋混凝土简支梁 频率 |
Vibration Characteristics Analysis of RC Beam with Cracks Based on Variable Rigidity Model |
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| ZHOU Ling,CHENG Hua,ZHANG Peng-liang. Vibration Characteristics Analysis of RC Beam with Cracks Based on Variable Rigidity Model[J]. Journal of Logistical Engineering University, 2009, 25(2): 5-8,17 |
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| Authors: | ZHOU Ling CHENG Hua ZHANG Peng-liang |
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| Affiliation: | 1.Dept.of Architecture & Civil Engineering;LEU;Chongqing 400041;China;2.Dept.of Administration and Support of General Staff Headquarters;Beijing 100082;China |
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| Abstract: | There should be biggish disparity with actual situation if dehiscent reinforced concrete(RC) beam is analyzed in terms of constant rigidity and isotropic material.In this paper,the analysis method of the variable rigidity models for RC beams with cracks based on the strip coating method is put forward.The theoretical calculation and experimental research on vibration characteristics of simply supported RC beam considered on cracks and material nonlinear are made.The results show that the parameters of exist... |
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| Keywords: | strip coating method crack variable rigidity model simply supported RC beam frequency |
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