摘要
为合理确定莫桑比克马普托(Maputo)大桥主桥的桥型方案,根据大桥桥位处的实际情况,从建设条件出发,参照欧洲规范和南部非洲标准,针对桥梁结构的体系选择、通航适应性、结构防撞能力、航空限高、施工方法等控制性因素,分别对主跨440m斜拉桥和主跨680m悬索桥方案,进行深入细致的比较和研究。研究结果表明:采用主跨680m一跨跨越马普托港湾的悬索桥方案,施工期间可以避免水下施工,运营期间没有船舶撞击的风险,最大限度地减少了对通航的影响,应为马普托大桥合理的桥型方案。
To reasonably determine the final bridge type scheme for the main bridge of Maputo Bridge,Mozambique,the bridge type schemes of the cable-stayed bridge with a main span 440 m and the suspension bridge with a main span 680 m were respectively compared and studied carefully and thoroughly in regard of the actual situations of the bridge site and the construction conditions,with reference to the Eurocodes and the SATCC （Draft） Code and also in the light of several control factors,including the structural system selection,navigation adaptability,structural ship collision capacity,aviation limit height at the bridge site and construction methods.The results of the comparison and study demonstrate that the bridge type scheme of the suspension bridge with a main span 680 m that can span the Maputo Harbor area in one span will avoid the construction of the bridge under water at construction stage,has no risk of ship collision at operation stage,will minimize the impact on the navigation and therefore,the bridge type scheme should be the reasonable scheme to be selected for the bridge.
出处
《桥梁建设》
EI
CSCD
北大核心
2013年第5期86-92,共7页
Bridge Construction
关键词
马普托大桥
桥型方案
方案
悬索桥
斜拉桥
公路桥
钢梁
Maputo Bridge
bridge type scheme
scheme
suspension bridge
cable-stayed bridge
highway bridge
steel girder
