INVESTIGATION OF THE PARAMETERS INFLUENCING BOND CRACKING
INVESTIGATION OF THE PARAMETERS INFLUENCING BOND CRACKING
复制标题
影响债券开裂的参数研究
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
W. J. Wilhelm
中科院分区：
文献类型：
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作者：
E. Kemp;W. J. Wilhelm
大型高强钢筋的出现引起了工程师的关注，并刺激了对粘结性质的研究，特别是纵向粘结开裂问题。最近的研究表明，债券分裂是一个复杂的现象，涉及到剪切和弯曲的相互作用，并受到保护，钢筋间距，钢筋数量，试样宽度，传力杆，和其他次要影响。西弗吉尼亚大学开展了一项广泛的计划，系统地研究影响粘结性能的各种参数，以努力在极限强度和工作荷载阶段制定新的设计标准。本文研究了纵向键劈裂的中心问题。这种现象进行了讨论，在西弗吉尼亚大学的研究参数，即，酒吧盖和间距，箍筋的影响，和债券/剪切比。根据目前的研究现状，初步设计准则的开裂和极限荷载极限状态。/作者/
The advent of large high tensile reinforcing bars has caused concern among engineers and stimulated research into the nature of bond and particularly the problem of longitudinal bond splitting. This recent research indicates that bond splitting is a complicated phenomenon involving interactions with shear and flexure and influenced by cover, bar spacing, number of bars, specimen width, dowel forces, and other secondary effects. An extensive program has been carried out at West Virginia University to study, systematically, the various parameters influencing bond behavior in an effort to develop new design criteria at both the ultimate strength and working load stages. The paper is concerned with the central problem of longitudinal bond splitting. This phenomenon is discussed in terms of the parameters studied at West Virginia University, namely, bar cover and spacing, the influence of stirrups, and the bond/shear ratio. Based upon the current status of the research, tentative design criteria are presented for both the cracking and ultimate load limit states. /Author/