预应力混凝土框架结构预应力梁张拉顺序对于边梁的影响的探讨

Study on Influence of the Tension Order of Prestressed Concrete Frame Structure Prestressed Beam on Side-Beam

预应力混凝土框架结构中预应力梁采用不同的张拉顺序对边梁的影响不同。若在张拉过程中 ,边梁产生较大的相对位移 ,则边梁中的弯矩与剪力较大 ,边梁易开裂。本文通过对一个采用大跨度次梁方案的预应力混凝土框架结构不同张拉顺序的有限元计算 ,进行了不同张拉顺序的分析对比 ,并给出了解决方法。

Tension order has important effect on side beamin prestressed concrete frame structure.In tension procedure,side beam is lidely to come into being biggish relative displacement and easy to craze because of moment and shear.Analysis and comparison of three tension orders has done through finite element caculationof a example.In the end,resolvent is put forward.