摘要
结合工程中风区桥梁所处的实际环境,详细介绍了设置防风设施的必要性,包括正常施工所需周期(不考虑大风影响),实际有效施工周期(考虑大风影响),正常施工所需周期与实际有效施工周期比较(考虑大风影响),以及加大投入缩短施工周期的不确定性;探讨了桥梁施工防风指导原则;深入分析了桥梁施工防风方案比选,包括总体方案,高墩施工防风方案(墩高20m以上),中矮墩台施工总体防风方案(20m以内),并对风区防风设施方案进行了总结。
Combined with the real environment where the bridge is in wind area,the author introduces the necessity for setting wind-resistant facilities in detail,including normal construction period（without considering the effect of gale）,practical effective construction period（considering the effect of gale）,comparison between normal construction period and practical effective construction period（considering the effect of gale）,the uncertainty for shortening construction period with increasing investment,discusses the guiding principle of wind-resistant construction in bridge construction.The author deeply analyzes the comparison and selection of wind-resistant scheme in bridge construction,including overall scheme,wind-resistant scheme in high pier construction（pier height over 20m）,wind-resistant scheme in middle-low pier construction（pier height below 20m）,and summarizes the scheme of wind-resistant facilities in wind area.
出处
《施工技术》
CAS
北大核心
2012年第3期65-69,共5页
Construction Technology
关键词
桥梁工程
铁路桥梁
防风
施工技术
bridges
railroad bridges
wind-resistant
construction
