马滩红水河特大桥重型塔架设计

Design of Heavy-duty Tower Frame for Matan Hongshui River Super-large Bridge

文章基于现阶段缆吊索塔架常用的结构形式,对马滩红水河特大桥重型塔架可选用的结构方案进行比选,得出采用不横移的门式结构更适合该桥的结论。同时,对该桥的单元框架平面形式、塔架柱头位置、腹杆形式、缆风等结构进行了设计分析,确定了塔架的具体形式与尺寸,并通过有限元软件计算验证了塔架设计的安全性。

Based on the commonly used structure forms of cable suspended tower at present stage,this article compared and selected the structural options of heavy-duty tower frame of Matan Hongshui River Super-large Bridge,and obtained the conclusion that the portal structure without lateral moving is more suitable for this bridge.At the same time,it conducted the design and analysis on the unit frame plane form,column-head position of tower frame,web-rod form,cable wind and other structures of this bridge,determined the detailed form and size of tower frame,and verified the safety of tower frame design by finite element software.