防撞护栏对简支空心板边板受力性能的影响  

Influence of Anti-Collision Guardrails on Mechanical Behavior of Side Slab of Simply Supported Hollow Slabs

作　　者：王龙[1] 郭元凯[1] 闫强 孙延飞[1] Wang Long;Guo Yuankai;Yah Qiang;Sun Yanfei(School of Highway, Chang＇an University, Xi＇an 710064, China;Beijing First Road Maintenance Engineering Co. , Ltd. Beijing 100000, China)

机构地区：[1]长安大学公路学院,陕西西安710064 [2]北京首发公路养护工程有限公司,北京100000

出　　处：《沈阳大学学报（自然科学版）》2018年第2期157-162,共6页Journal of Shenyang University：Natural Science

摘　　要：为了准确掌握简支空心板边板受力性能和空心板边板典型病害产生的原因,通过MIDAS、ADINA有限元程序,分别以载荷形式、结构形式考虑防撞护栏对简支空心板桥边板恒、活载效应进行对比分析.分析得出,以结构形式考虑防撞护栏对空心板桥边板受力性能有较明显的影响,桥梁设计时活载剪切效应考虑不足是结构梁端斜裂缝产生的重要因素之一.In order to accurately grasp the mechanical properties of the side board of simply supported hollow slabs and the causes of the typical diseases of the hollow slabs, the dead load and live-load effects of the side board of simply supported hollow slab bridges were compared and analyzed using Midas and Adina finite element programs, and the differences of anti collision guardrails＇ effect which was just deemed to a uniform load or as one parts of the bridge was taken into consideration. Through the analysis, it has obvious influence on the structure that taking the impact of anti-collision guardrails as one parts of the bridge on the mechanical behavior of hollow edge slabs into consideration, and one of the important factor that cause beam end digonal cracks was the lack of consideration of live shear force.

关 键 词：梁端斜裂缝 防撞护栏 边板 有限元分析 

分 类 号：U441[建筑科学—桥梁与隧道工程]