Steel Jacket Retrofitting of Reinforced Concrete Bridge Columns for Enhanced Shear Strength--Part 2: Test Results and Comparison With Theory
Steel Jacket Retrofitting of Reinforced Concrete Bridge Columns for Enhanced Shear Strength--Part 2: Test Results and Comparison With Theory
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DOI：
10.14359/4168
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发表时间：
1994-09
影响因子：
1.8
通讯作者：
M. Priestley;F. Seible;Yan Xiao;Anuradha Verma
中科院分区：
文献类型：
--
作者：
M. Priestley;F. Seible;Yan Xiao;Anuradha Verma
在这篇关于易受剪切破坏的桥梁柱的评估和改造的两部分论文的第二部分，给出了两个试验程序的实验结果。第一个测试包括四个“建成”的圆形柱子，预计会在剪切下失效，另外四个柱子用钢护套进行改造。第二个涉及三个“建成”和三个夹袄矩形柱。变量包括轴向荷载水平，纵向钢筋强度，长径比和截面形状。所有“建成”柱在剪切中以脆性方式或低弯曲延性水平失效。夹套柱的性能非常好。性能的“建成”和改造柱符合分析模型提出的同伴论文。
In this, the second part of a two-part paper on assessment and retrofit of bridge columns susceptible to shear failure, experimental results are presented from two test programs. The first involved tests of four "as-built" circular columns expected to fail in shear, with a further four columns retrofitted with steel jackets. The second involved three "as-built" and three jacketted rectangular columns. Variables included axial load level, strength of longitudinal reinforcement, and aspect ratio as well as section shape. All "as-built" columns failed in shear in a brittle fashion, or at low-flexural ductility levels. Jacketted columns performed extremely well. Performance of "as-built" and retrofitted columns conformed to analytical models presented in the companion paper.