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冷弯薄壁型钢和重组竹通过结构胶复合成工字形截面的钢-竹组合梁,以翼缘竹板厚度、型钢壁厚、梁宽、梁高为主要参数,对9根钢-重组竹组合梁试件进行弯曲性能试验,观察各级荷载作用下型钢及竹板的应变变化、组合梁挠度的发展,分析组合梁的破坏过程、破坏形态及破坏机理,探讨组合梁的抗弯承载力,并提出组合梁承载力计算方法。研究结果表明,基于重组竹的钢-竹组合梁整体工作性能好,组合效应显著,其受力过程呈现出明显的弹性、屈服、开裂、极限四个阶段,表现出较好的延性,同时具有较高的承载力,组合梁的承载力计算结果与试验值吻合良好,误差在10%以内。
Cold-formed thin-walled steel and reorganized bamboo composite structure into the I-shaped cross-section of steel-bamboo composite beams to the flange thickness of bamboo, steel wall thickness, beam width, beam height as the main parameters of 9 steel - bamboo The bending behavior of the composite beam specimens was tested. The strain changes of the section steel and the bamboo under various loads were observed. The deflection of the composite beams was analyzed. The failure process, failure mode and failure mechanism of the composite beams were analyzed. , And put forward the calculation method of bearing capacity of composite beam. The results show that the composite bamboo-bamboo composite beam based on the reorganized bamboo has good overall performance and significant combination effect, and its stress process shows obvious four stages of elasticity, yielding, cracking and limit, showing good ductility, The higher bearing capacity, the bearing capacity of the composite beam results agree well with the experimental values, the error is within 10%.