【摘要】 在预应力网架结构杆件基本理论研究的基础上,通过对预应力网架结构施工进行张拉全过程分析,给出了当逐次增加单根预应力杆并施加预应力时,杆件施工控制应力的理论计算方法。可以一次性完成预应力施加,无需进行预应力调整,达到方便施工的目的。更多还原

【Abstract】 In this paper,the authors introduced the calculation method of the controlling force of prestressed members,which is on the basic theory of the pretensioning force of prestressed members.The tension process of space grid structures was analyzed.By using this method,the prestressed members can be pretensioned at one time and no modification of the pretensioning force is needed,which is convenient for construction.更多还原