摘要
旧桥拼接是高速公路改建中的难点。针对沪宁高速公路(上海段)桥梁拼接工程,介绍了拼接方法、基本构造、拼接措施、计算分析等方面内容。通过比较,为本工程提出合理建议。通过计算,着重分析了横向分布系数变化、沉降差和徐变对拼接桥梁的影响。
Old bridge widening is a hard nut in the reconstruction of existing expressways. Based on the bridge widening works in Hu-Ning Expressway (Shanghai Section), a description is given here of the method, general structure and steps of the bridge widening, including calculation and analysis thereof. Through comparison, reasonable proposals are raised for the works, and based on the calculation, analysis is made mainly of the impact on the widened bridge by variation in the transverse distribution factors, differential settlement and creep.
出处
《中国市政工程》
2007年第A02期10-12,共3页
China Municipal Engineering
关键词
高速公路
桥梁拼接
拼接构造
expressway
bridge widening
joint structure
