摘要
以首次采用钢-UHPC组合梁方案的惠清高速公路麻埔停车区跨线桥工程为依托工程,介绍了依托工程的设计和施工要点以及技术先进性和经济性。同时,通过Midas软件建立了钢-UHPC轻型组合梁全桥模型,计算分析了该桥的内力及应力特性,并对承载能力极限状态下的抗弯承载力、抗剪承载力及稳定性和正常使用状态下的应力、变形及裂缝宽度进行了验算。
Based on the first application of steel-UHPC composite girder scheme-Mapu Parking Area overpass bridge in Huiqing Highway,the key points of design and construction as well as the technical advancement and economic performance of the bridge are introduced in this paper.Meanwhile,through establishing the finite element model of the whole steel-UHPC lightweight composite girder bridge in Midas software,the internal force and stress levels of the bridge are calculated and analyzed.Under the ultimate limit state,the design bending and shear bearing capacities,stability of the proposed bridge are checked.Moreover,the stress levels,deformation and crack width are estimated under the serviceability limit state.
作者
李志锋
何湘峰
赵旭东
胡伟业
邵旭东
LI Zhifeng;HE Xiangfeng;ZHAO Xudong;HU Weiye;SHAO Xudong(Guangdong Road&Bridge Construction Development Co.Ltd.,Guangzhou 510635,China;College of Civil Engineering,Hunan University,Changsha Hunan 410082,China)
出处
《公路工程》
2021年第1期98-102,共5页
Highway Engineering
基金
广东省交通运输厅2017年度重大科技专项(科技-2017-01-002)。
关键词
超高性能混凝土(UHPC)
轻型组合梁
经济性
承载力
有限元分析
ultra-high performance concrete(UHPC)
lightweight composite girder
economic performance
bearing capacity
finite element analysis
