摘要
为研究钢混凝土组合梁正弯矩区的复合抗剪能力 ,对 16根密实截面钢混凝土组合梁的组合抗剪性能进行了试验研究。试件全部简支 ,跨中两点对称单调静力加载。试验结果表明 ,钢混凝土组合梁截面的组合抗剪承载力为现行有关规范计算值的 1.0 6～ 2 .88倍 ;为同剪跨比 (剪跨比为 1.0和 2 .0时 )纯钢梁的 1.2 6～ 1.72倍。混凝土翼板对组合梁的抗剪承载力有明显的贡献。组合梁的破坏形态不仅与组合梁的剪跨比有关 。
Experiments were conducted on 16 steel-concrete composite beams (SCCB) with compact steel sections to investigate their shear resistance behavior. Vertical shear is a more significant design constraint for simply-supported steel-concrete composite beams than for steel beams. The test results show that the vertical shear capacity of SCCB is 1.06～2.88 times that given by current codes, and 1.26～1.72 times that of steel beams with the same shear span/depth ratio (i.e. 1 and 2). The concrete flange contributes significantly to the shear capacity. The failure modes of the composite beam are influenced by the shear span/depth ratio for composite beams and joists.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第6期835-838,共4页
Journal of Tsinghua University(Science and Technology)
基金
国家杰出青年科学基金资助项目 ( 5 0 0 0 2 5 82 2 )
北京市自然科学基金资助项目 ( 8992 0 13)
教育部结构工程与振动重点实验室资助项目
关键词
钢-混凝土组合梁
正弯矩截面
组合抗剪性能
steel-concrete composite beam
composite shear behavior
contribution from concrete flange
shear span/depth ratio
