RPC混凝土在铁路预应力T形梁中的应用试验  

Application Test of RPC Concrete in Railway Prestressed T-beam

作　　者：曹万会 高淑平 

机构地区：[1]中铁二十二局集团第四工程有限公司,河北高碑店074000

出　　处：《铁道建筑技术》2009年第7期105-108,共4页Railway Construction Technology

摘　　要：我国在迁曹铁路滦柏干渠大桥工程中,首次采用活性粉末混凝土(Reactive Powder Concrete,RPC)制作多孔预应力简支T形梁进行力学性能测试和行车监测,其中1孔(2片)进行了力学性能测试,5孔(10片)进行了行车监测,取得了良好的效果。通过RPC混凝土桥梁的制作和试验,总结了部分制作经验,通过力学性能测度,证明了RPC混凝土在铁路桥梁应用中的可行性和良好前景。In Luanbo bridge project of Qiancao railway, multi-pored prestressed simple T-beam mode of reactive powder concrete was used for the first time as a method to test the mechanical properties and monitor the train-running, in which one pore （two pieces） is for mechanical property test, and five pores （ten pieces） for train-running monitoring. The method achieved good effects. In this paper, production experience was got by test and making of R.PC concrete beam, and the feasibilities and prospects of the appplieation of RPC concrete in railway ridge were proved by mechanical property test.

关 键 词：RPC混凝土 预应力简支T形梁 力学性能 应用试验 

分 类 号：U445[建筑科学—桥梁与隧道工程]