摘要
以重庆石柱至黔江高速公路郁江河特大桥主墩横系梁施工为例,阐述了双薄壁空心墩横系梁施工技术及其支架的稳定性验算。本桥横系梁采用在墩身预埋工字钢、在工字钢上搭设支架进行施工,能够循环使用,即安全又经济。
Taking the construction of main pier cross tie beam of Yujiang River bridge on Shizhu-Qianjiang Expressway in Chongqing as an example,this paper expounds the construction technology of double thin-walled hollow pier cross tie beam and the stability checking calculation of its support.The cross tie beam of the bridge is constructed with I-beam embedded in the pier body and brackets erected on the I-beam.It can be recycled and used safely and economically.
作者
杨东升
YANG Dong-sheng(China Railway 20th Bureau Group Fourth Engineering Co.,Ltd.,Shandong Qingdao 266061 China)
关键词
双薄壁
横系梁
支架
稳定性验算
double thin wall
tie beam
bracket
stability check
