寒冷地区钢桥面铺装研究及其受力特点分析

Research on Steel Bridge Pavement in Cold Region and Analysis of Its Stressing Features

桥面铺装结构体系直接铺装于正交异性钢桥面上,在行车荷载、风载、温度变化及钢桥面局部变形等因素影响下,其受力和变形十分复杂,因而对其强度、变形特性、温度稳定性、疲劳耐久性等均有更高要求。同时,由于铺装体系所处的特殊位置,在使用性能上又有重量轻、粘结性高、不透水等特殊要求。桥面铺装是桥梁行车系的重要组成部分,其质量优劣直接影响到行车的安全性、舒适性、桥梁耐久性及投资效益和社会效益。本文以滨北线松花江公铁两用桥为背景,分别研究公路桥面及铁路桥面铺装结构,并对其受力特点进行分析探讨。

The deck pavement is directly laid on the orthotropic steel bridge deck,under the influence of driving load,wind load,temperature change and local deformation of steel bridge deck,its stress and deformation are very complex,therefore,it has higher requirements on its strength,deformation characteristics,temperature stability,fatigue durability and so on.Meanwhile,due to the special location of the pavement system,there are special requirements such as light weight,high adhesion and water impermeability in the performance of the use.Deck pavement is an important part of bridge system,its quality directly affects the safety,comfort,bridge durability,investment and social benefits.Based on the combined bridge of the Songhua River of Harbin-Bei'an Railway,the pavement structures of highway bridge deck and railway bridge deck are studied respectively,and the characteristics of the force are analyzed and studied.