摘要
Abstract
In order to improve the mechanical properties of road and bridge connection plates,the mechanical properties of road and bridge connection plates were systematically studied by preparing LEM-SHCC composite material.The results show that the compressive strength of the specimens containing 8 mm and 12 mm composite fiber is 32%higher than that of the specimens containing 12 mm fiber.When rubber powder is not added,the elastic modulus of the specimen is 9.13 GPa.When 17%rubber powder was added,the elastic modulus of the speci-men was reduced by 26.2%.The vertical displacement of the micro-cracked LEM-SHCC bridge plate increases with the increase of vertical load,and the rebound deflection after unloading is less than the calculated deflection value,which indicates that the design strength require-ments of the plate are met.关键词
桥梁工程/LEM-SHCC路桥连接板/温度荷载/PVA纤维/力学性能Key words
Bridge engineering/LEM-SHCC road and bridge connection plate/Temperature load/PVA fiber/Mechanical property分类
交通工程
