机构地区: 同济大学土木工程学院土木工程防灾国家重点实验室
出 处: 《四川建筑科学研究》 2003年第4期85-87,共3页
摘 要: 探讨了后张预应力混凝土框架梁正截面承载力计算公式,提出了多层预应力混凝土框架梁的实用设计方法,此法考虑了各层预应力梁的相互影响,以正常使用要求为前提,同时满足了承载力要求。并通过算例,分析指出了现行设计方法的不足,明确了次轴力对预应力梁的影响。 In this paper,the ultimate normal section load-bending capacity of post-tensioned prestressed beam is derived,and a practical design method for multistory prestressed concrete frame beam is present.This method can consider interaction among each prestressed concrete frame beam.Based on cracking-control,ultimate load capacity also can be satisfied.In the meanwhile,the example has shown that the insufficiency of current methods.The influence factor of secondary axial force is specified.
领 域: [建筑科学]