纵横梁体系全钢系杆拱桥总体设计  

Overall Design of All-Steel Tied Arch Bridge with Longitudinal and Transverse Beam

作　　者：任清顺 张胡芝 夏东旭 甘岚 REN Qing-shun;ZHANG Hu-zhi;XIA Dong-xu;GAN Lan(Sichuan Southwest Jiaoda Civil Engineering Design Co.Ltd.,Chengdu 610031,China)

机构地区：[1]四川西南交大土木工程设计有限公司,成都610031

出　　处：《工程建设与设计》2021年第24期47-50,共4页Construction & Design for Engineering

摘　　要：通济桥为川西历史文物古桥原桥位的新建桥梁,主桥采用主跨148 m的单孔下承式系杆拱桥,桥宽30 m。主拱肋采用箱型截面钢拱圈,悬链线形。梁体为纵横梁结构体系钢梁,主纵梁梁高2.5 m。每个拱肋设4束成品系杆索,锚固于拱梁结合段支座横隔板。主拱吊杆纵向间距按9.0 m设置,全桥共设置15对吊杆。主桥基础采用矩形承台和钻孔桩基形式。经有限元模拟分析,大桥结构安全可靠。Tongji Bridge is a new bridge in the original bridge location of the ancient bridge with historical relics in western Sichuan.The main bridge adopts a single-hole tied arch bridge with a main span of 148 m.The bridge is 30 m wide.The main arch rib adopts box section steel arch ring,catenary line shape.Beam body is longitudinal and transverse beam structure system steel beam,main longitudinal beam is 2.5 m high.Each arch rib is equipped with 4 bundles of finished tie rod cables,which are anchored to the transverse partition of the support of the arch beam joint section.The longitudinal spacing of main arch hanger rods is set according to 9.0 m,and 15 pairs of hanger rods are set in the whole bridge.The main bridge foundation adopts rectangular cap and bored pile foundation.By finite element simulation analysis,the bridge structure is safe and reliable.

关 键 词：下承式系杆拱桥 钢拱肋 纵横梁格体系钢梁 系杆 吊杆 

分 类 号：TB21[一般工业技术—工程设计测绘] U442.54[建筑科学—桥梁与隧道工程]