Crack Width Calculation Method of Ribbed Steel-Concrete Composite Beam

doi:10.3969/j.issn.1674-0696.2015.03.04

Journal of Chongqing Jiaotong University(Natural Science) ›› 2015, Vol. 34 ›› Issue (3): 16-20.DOI: 10.3969/j.issn.1674-0696.2015.03.04

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Crack Width Calculation Method of Ribbed Steel-Concrete Composite Beam

Wang Xiaodong^1,2, Wei Wenlong³, Tang Liang³

1. Wuhan University of Technology, Wuhan 430070, Hubei, China;2. Traffic Survey & Design Institute of Tibet Autonomous Region, Lhasa 850001, Tibet, China; 3. School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China

Received:2014-09-14 Revised:2014-10-29 Online:2015-06-20 Published:2015-07-07

矩形带肋钢板-混凝土复合梁裂缝宽度计算方法

王晓东^1,2,魏文龙³,唐亮³

1.武汉理工大学,湖北武汉 430070;2.西藏自治区交通勘察设计研究院,西藏拉萨 850001;3.重庆交通大学土木建筑学院,重庆 400074

作者简介:王晓东(1972-),男,山东胶州人,高级工程师,主要从事组合结构设计方面的研究。E-mail:tibetxd@qq.com。
基金资助:
国家自然科学基金项目（11302271)；重庆市应用开发计划项目（cstc2013yykfB0123)；重庆交通大学山区桥梁与隧道工程国家重点实验室培育基地开放基金项目（CQSLBF-Y13-8

Abstract

Abstract: Referring to the bond-slip theory of reinforced concrete cracks calculation method, crack spacing formula of the rectangular Ribbed Steel-Concrete Composite beam (RSCC beam and strain formula of the top of stiffen plate were developed. The formulas explain the phenomena: the crack spacing of RSCC beam is smaller than that of ordinary reinforced concrete beams in the experiment. Referring to the calculation of ordinary reinforced concrete cracks comprehensive theory, the formula for calculating the maximum crack width of RSCC beam was derived.

Key words: bridge engineering；crack width, cracking moment, ribbed steel-concrete composite beam, enhancement mechanism

摘要： 参照普通钢筋混凝土裂缝计算的黏结-滑移理论，推导了适用于矩形带肋钢板-混凝土复合梁(Ribbed Steel-Concrete Composite Beam，RSCC梁的裂缝间距公式；在理论上解释了在同等配筋率下RSCC梁的裂缝间距较普通钢筋混凝土梁小的试验现象；在加劲肋钢板顶部应变计算公式的基础上，参照普通钢筋混凝土裂缝计算的综合理论给出了RSCC梁的最大裂缝宽度计算公式；通过试验数据拟合得到了相关参数。

关键词: 桥梁工程, 裂缝宽度, 开裂弯矩, 带肋钢板-混凝土复合梁, 增强机制

CLC Number:

U441

Wang Xiaodong,Wei Wenlong, Tang Liang. Crack Width Calculation Method of Ribbed Steel-Concrete Composite Beam[J]. Journal of Chongqing Jiaotong University(Natural Science), 2015, 34(3): 16-20.

王晓东,魏文龙,唐亮. 矩形带肋钢板-混凝土复合梁裂缝宽度计算方法[J]. 重庆交通大学学报（自然科学版）, 2015, 34(3): 16-20.

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Crack Width Calculation Method of Ribbed Steel-Concrete Composite Beam

矩形带肋钢板-混凝土复合梁裂缝宽度计算方法

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