【摘要】 通过10个大尺寸矩形竹梁的试验,重点从结构构件层次上研究了新型竹梁的受弯性能。研究表明,竹梁存在四种典型的破坏形态,其允许承受的设计荷载实际是由截面刚度控制,而并非强度控制;竹梁在破坏前,横截面应变沿高度方向的分布基本上呈线性,平截面假定是成立的。同时,还介绍了新型竹梁在抗震安居示范房工程中的应用情况,竹梁的使用性能在实践工程中得到了良好的检验。更多还原

【Abstract】 Ten large-size bamboo rectangular beams were tested to investigate bending performance of a new type of bamboo beams with emphasis on structural components.It was concluded that bamboo beams exhibited four kinds of typical failure modes,the control condition of the permit design load was the cross-section stiffness rather than material strength.Before the failure of bamboo beams,cross-section strain distribution along the height was linear,and the planesection assumption was established.At the same time,the new type of bamboo beams used in the anti-seismic living model room was introduced and the bamboo beams performance was tested well in practice.更多还原