摘要
夹层板系统(Sandwich Plate System,SPS)是由上、下2层钢板和中间1层聚氨酯芯体组成的一种复合结构,在桥梁工程(尤其是桥面板工程)中具有广阔的应用前景。从材料性能、构造特点和受力特性角度阐述了SPS夹层板的优越性,并重点介绍了SPS夹层板在新建预制拼装桥面、替换原有混凝土桥面、加固传统正交异性钢桥面板以及新建正交异性夹层钢桥面板等方面的应用情况和研究进展,结果表明SPS夹层板非常适合在以受弯为主的板式结构中采用,已建成的SPS夹层桥面结构也表现出可靠的力学性能。最后对SPS夹层板的数值建模方法进行讨论,并提出今后应在界面粘结滑移、标准化构造细节、通用设计方法等方面重点开展研究。
The sandwich plate system （SPS） is a kind of the composite structure that is made up of the upper and lower steel plates and an intermediate polyurethane core and has vast vista of application to the bridge engineering （particularly to the bridge decks）. In this paper, the advan- tages of the SPS are described from aspects of the material properties, structural characteristics and mechanical behavior, followed by a detailed introduction to the application and research ad- vance of the ：SPS in the newly precast and assembled bridge decks, replacement of the degraded concrete bridge decks, strengthening of the conventional orthotropic steel bridge decks as well as the newly built SPS orthotropic steel bridge decks. The results show that the SPS is particularly applicable to the plate （slab） type structures that are mainly subjected to bending and all existing SPS bridge decks have exhibited the reliable mechanical behavior. Besides, the numerical model- ing methods for the SPS are also discussed and the future researches on the bond-slip characteris- tics of the interfaces, standard structural details and general design approaches of the SPS are suggested.
出处
《桥梁建设》
EI
CSCD
北大核心
2015年第1期13-19,共7页
Bridge Construction
基金
上海市自然科学基金项目(14ZR1422800)
上海交通大学晨星青年学者奖励计划项目(14X100010053)~~
关键词
桥面系统
正交异性钢桥面板
夹层板
桥面加固
极限状态
数值模拟
bridge deck system
orthotropic steel bridge deck
sandwich plate system
bridge deck strengthening limit state numerical simulation
