摘要
本文通过对无粘结预应力空腹桁架在竖向荷载下的试验数据进行分析比较 ,讨论了桁架在竖向力作用下预应力钢筋的极限应力 ,分析了杆件尺寸、桁架高宽比、预应力钢筋数量。
By making a comparison between the test results of unbonded prestressed vierendeel trusses under vertical load,the ultimate stress of prestressed tendon and the effect of some factors to the performance of trusses are discussed,the factors include the sizes of web and cord,the ratio of height to length of truss,the ratio of prestressed tendons,and the effective prestressing force.
出处
《建筑技术开发》
2002年第11期3-4,25,共3页
Building Technology Development
基金
北京市教委项目编号 :99KJ4 7
关键词
预应力混凝土
空腹桁架
弯曲性能
试验
Prestressed concrete Vierendeel trusses
Bending performance
Experimental research
