ZB-200型钢桥预应力技术探讨  

A DISCUSSION ABOUT PRESTRESS TECHNOLOGY OF ZB-200 ASSEMBLAGE HIGHWAY STEEL-BRIDGE

作　　者：陈双聪 胡业平[1] 陈双锐[2] 

机构地区：[1]解放军理工大学野战工程学院,南京210007 [2]华南理工大学土木与交通学院,广州510640

出　　处：《低温建筑技术》2015年第9期70-72,共3页Low Temperature Architecture Technology

摘　　要：以抢通毁于汶川地震的彻底关大桥为背景,针对"321"钢桥和ZB-200型钢桥架设跨径过小问题,提出对ZB-200型装配式公路钢桥进行预应力技术改造,设计相应的预应索、撑杆和锚箱。经分析,在公路-Ⅱ级工况下,预应力ZB-200型钢桥的跨径可达到81m,突破原有的63m架设跨径,拓展了ZB-200型钢桥的使用范围。It is set in Chediguan Bridge that was ruined in Wenchuan earthquake, aiming at the short span of 321 bridge and ZB-200 assemblage highway steel-bridge, proposing add prestress to ZB- 200 assemblage highway steel-bridge, designing corresponding prestress ropes, brace and anchor box. By calculation, in case Highway Ⅱ, the span of prestressed ZB-200 bridge can achieve 81 m, surpassing orig- inal 63m,expanding application scope of ZB-200 bridge.

关 键 词：装配式公路钢桥 预应力 撑杆 锚箱 

分 类 号：TU392[建筑科学—结构工程]