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本文对蜂窝形组合梁的承载力、空腹的次影响、竖向剪力对抗弯承载力的影响等进行了分析,并进行了蜂窝形组合梁的破坏性试验。蜂窝形组合梁的承载力可按现行《钢结构设计规范》GBJ17-88中关于组合梁的设计规程计算,只是应采用钢梁的净截面积。空腹的次影响不影响最终抗弯极限承载力。蜂窝形组合梁具有很好的延性,且受弯性能好。
This paper analyzes the bearing capacity of honeycomb composite beams, the secondary effects of fasting, and the influence of vertical shear forces on bending bearing capacity, and conducts destructive tests on honeycomb composite beams. The bearing capacity of honeycomb composite beams can be calculated according to the design rules for composite beams in the current “Design Code for Steel Structures” GBJ17-88, except that the net cross-sectional area of steel beams should be used. The secondary effects of fasting do not affect the ultimate bending capacity. Honeycomb shaped composite beams have good ductility and good bending resistance.