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| 钢筋混凝土桥墩开裂刚度计算 | |
| 引用本文： | 郑罡,彭建中,高波.钢筋混凝土桥墩开裂刚度计算[J].世界地震工程,2012,28(1):1-6. |
| 作者姓名： | 郑罡 彭建中 高波 |
| 作者单位： | 1. 重庆交通科研设计院,重庆,400067 2. 东莞市城建规划设计院,广东东莞,523000 3. 安徽省交通规划设计研究院,安徽合肥,230088 |
| 基金项目： | 国家自然科学基金(50878220、50308030);重庆市杰出青年科技基金(CSTC、2008BA6039) |
| 摘 要： | 以基本的力学理论为依据,对双筋矩形截面混凝土墩柱的受力模式进行简化,通过力学平衡方程,从理论上分析了墩柱受力过程中开裂区域的刚度。在此基础上,引入了三段式的概念,并通过三段式思想推算出截面刚度的简化公式。根据简化公式计算出力-位移曲线,继而推算出混凝土墩柱整体刚度。 |
| 关 键 词： | 钢筋混凝土墩柱 开裂刚度 整体刚度 力-位移曲线 |
Cracking stiffness calculation of reinforced concrete bridge piers |
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| ZHENG Gang , PENG Jianzhong , GAO Bo.Cracking stiffness calculation of reinforced concrete bridge piers[J].World Information On Earthquake Engineering,2012,28(1):1-6. | |
| Authors: | ZHENG Gang PENG Jianzhong GAO Bo |
| Affiliation: | 1.Chongqing Communication Research & Design Institute,Chongqing 400067,China;2.Dongguan Urban Construction & Planning Institute Dongguan 523000,China;3.Anhui traffic planning and design institute,Hefei,230088,China) |
| Abstract: | According to the theory of the fundamental mechanics,this paper simplifies the mechanical mode of the bi-bar reinforced rectangular concrete bridge pier,and through the mechanical balance equation,conducts the theoretical analysis of cracking stiffness of the pier during the stress process.On this basis,by introducing the concept "three-stage",a simplified formula used to calculate stiffness of cross section was derived.In term of the simplified formula force-displacement curve and the stiffness of whole concrete pier were calculated. |
| Keywords: | reinforced concrete pier stud crazing stiffness overall stiffness force-displacement curve |
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