In this paper, the shear behavior of six full-scale Inverted-T Bent Caps (ITBC) specimens with skew angles of 30°, 45°, and 60° are reported to study the effect of skew angle and rebar arrangement on structural performance. The transverse reinforcement in skewed ITBCs is designed as per the traditional methods the TxDOT Bridge Design Manual LRFD, which conform to the AASHTO LRFD Bridge Design Specifications. The traditional design of flaring the transverse rebar in skew ITBCs brings notable difficulty in manufacturing. An alternative way is to apply uniform skewed reinforcing, which is compared to traditional design in this research. The minimum ratio of transverse reinforcement required by AASHTO LRFD specifications was adopted in this research to investigate the most unfavorable design. The load–displacement curves, the internal force diagrams, the strength and displacement capacity, and the strain measuring results are reported in detail. The specimens with a skew angle of 30° or 45° fail in shear-critical mode, while the specimens with a skew angle of 60° fail in torsion-critical mode. The experimental results show that replacing the traditional reinforcement with the skew reinforcement does not reduce the capacity of ITBCs. The cracking behavior of ITBCs with skew rebar are better than the ITBCs with traditional rebar. Based on the extensive experimental study on ITBCs, general design guidelines for the design and construction of the skewed reinforcing in ITBCs are provided.

在本文中，报道了六个倾斜角度分别为30°，45°和60°的满刻度倒T型弯管帽（ITBC）的剪切行为，以研究倾斜角和钢筋布置对结构性能的影响。倾斜的ITBC中的横向钢筋是根据TxDOT桥梁设计手册LRFD的传统方法设计的，该方法符合AASHTO LRFD桥梁设计规范。在倾斜的ITBC中扩口横向钢筋的传统设计给制造带来了很大的困难。另一种方法是应用均匀的偏斜钢筋，与本研究中的传统设计相比。本研究采用了AASHTO LRFD规格要求的最小横向配比，以研究最不利的设计。载荷-位移曲线，内力图，详细报道了强度和位移能力，以及应变测量结果。斜角为30°或45°的试样在剪切临界模式下会失效，而斜角为60°的试样在扭转临界模式下会失效。实验结果表明，用偏斜钢筋代替传统钢筋不会降低ITBC的承载能力。带有偏斜钢筋的ITBC的开裂行为要优于带有传统钢筋的ITBC。基于对ITBCs的广泛实验研究，提供了有关ITBCs中斜筋的设计和建造的一般设计指南。倾斜角度为60°的样品在扭转临界模式下会失效。实验结果表明，用偏斜钢筋代替传统钢筋不会降低ITBC的承载能力。带有偏斜钢筋的ITBC的开裂行为要优于带有传统钢筋的ITBC。基于对ITBCs的广泛实验研究，提供了有关ITBCs中斜筋的设计和建造的一般设计指南。倾斜角度为60°的样品在扭转临界模式下会失效。实验结果表明，用偏斜钢筋代替传统钢筋不会降低ITBC的承载能力。带有偏斜钢筋的ITBC的开裂行为要优于带有传统钢筋的ITBC。基于对ITBCs的广泛实验研究，提供了有关ITBCs中斜筋的设计和建造的一般设计指南。