SHEAR CRACKING BEHAVIOR IN REINFORCED CONCRETE MEMBERS
To control crack width at the member surface, designers may use the guidelines prescribed in building design codes. These guidelines concerning crack width are meant for flexural crack width, which were experimentally obtained and cannot be applied directly to the prediction of shear crack width, which is caused by different mechanism. This paper tries to throw the light on shear cracking behavior and its mechanism in reinforced concrete beams. As a collaborative research between Hokkaido University (Japan), and Dalian University of Technology (China), a set of experiment was carried out to investigate the effect of the most influential parameters on the shear crack mechanism in reinforced concrete beams. All the beams were designed to fail in shear under static loading. Shear crack investigation was conducted using the demec digital mechanical strain gauge with a precision of 0.001mm to measure concrete deformations in shear cracking zone, as well as strain gauges mounted on the stirrups to clarify the relation between shear crack components and stirrup strain at the intersection with diagonal cracks. The experimental results show clearly the effects of the parameters, which are the useful information for the development of rational shear crack prediction method.
Reinforced concrete shear crack width stirrup strain crack spacing internal stresses shear reinforcement ratio side cover of concrete stirrup configuration
H. M. Zakaria T. Ueda Z. M. Wu L. Meng F. Xu
Division of Built Environment, Hokkaido University, Sapporo, Japan Department of Civil Engineering, Dalian University of Technology, Dalian, China
国际会议
上海
英文
776-784
2007-11-28（万方平台首次上网日期，不代表论文的发表时间）