摘要
由于先张法U型梁张拉控制力可达上千吨,对张拉台座的强度和位移要求极高,传统的台座类型不能保证在先张法张拉力作用下的台座要求。针对这种情况,提出一种新型的U型梁先张台座,以期对U型梁的设计技术及施工工艺进行改进,为U型梁在城市轨道交通工程中的推广应用提供依据和参考。
Due to the control tension of pretensioned U beam can reach up to thousands of tons, it has extremely demanding require- ment of the strength and displacement for tensioning pedestal. The traditional tensioning pedestal can not guarantee the requirements of pretensioning tension. In light of this situation, it presents a new type pre - tensioning pedestal for U beam in this article, expectes that the design technology and construction technology of U beam will be improved. It provides the basis and reference for the populari- zation and application of U beam in urban rail transit engineering.
作者
周彬
刘国鹏
ZHOU Bin;LIU Guo - peng(CCCC Second highway engineering co. ,Ltd, Xi＇an 710065 ,China)
出处
《黑龙江交通科技》
2018年第3期81-83,共3页
Communications Science and Technology Heilongjiang
关键词
U型梁
先张法
张拉台座
设计计算
U Beam
Pretensioned Method
Tensioning Pedestal
Design and Calculation
