高速公路宽幅空心板梁桥承载能力的检算系数评定法研究  

The Bearing Capacity of Highway of Wide Hollow Slab Beam Bridge Calculation of Coefficient Evaluation Method

作　　者：林珈[1] 田莉梅[2] 

机构地区：[1]北京交通职业技术学院,北京102200 [2]廊坊师范学院,河北廊坊065000

出　　处：《公路工程》2016年第6期159-163,共5页Highway Engineering

摘　　要：目前我国桥梁因设计荷载等级低、病害、损伤等问题越来越不能适应日益发展的交通运输。根据我国现有桥梁状况、技术水平,采用模糊综合评判方法,对高速公路宽幅空心板桥梁承载力检算系数评定法进行了研究。将模糊数学综合评判理论运用到高速公路宽幅空心板桥承载能力的检算系数的评价上,提出空心板桥技术状况的模糊综合评判方法。以辽宁某高速公路宽幅空心板桥为为例,采用层次分析法和模糊数学原理,宽幅空心板桥承载能力的检算系数为0.514,通过模糊综合评判法,客观、科学、合理对桥梁技术状况进行了评价,以前主观判断、进行简单加权平均的缺陷得以克服。At present, our country can not adapt to the increasingly development of transportation due to the low design load level, disease, damage and other problems. According to the existing bridge status in our country, the level of technology, this paper uses fuzzy comprehensive evaluation method of highway wide hollow slab bridge to calculate bearing capacity coefficient evaluation method is studied. The fuzzy mathematics comprehensive evaluation theory to evaluate the carrying capacity of the expressway wide hollow slab bridge calculation coefficient, fuzzy comprehensive evaluation method of hollow slab bridge technical condition. On a highway in Liaoning wide hollow slab bridge for example, by using AHP and fuzzy mathematics principle, wide hollow slab bearing capacity calculation coefficient is 0. 514, by using fuzzy comprehensive evaluation method, objective, scientific and reasonable for the bridge technical condition is evaluated before the subjective judgment, to overcome defects of simple weighted average.

关 键 词：承载能力 检算系数 评定法 宽幅空心板梁桥 

分 类 号：U448.212[建筑科学—桥梁与隧道工程]