CAJ | 학술논문

桥面连续构造是简支桥梁的一个重要构造措施,但很容易损坏,且易损难修,是公路简支桥梁的通病.通过梳理目前常用的桥面连续构造型式,分析了其受力机理.对目前常规的多跨径简支梁桥的梁端变形进行了分析比较,在此基础上通过对两种桥面连续构造进行有限元计算分析,得出了桥面连续在最不利情况下的应力和裂缝宽度.对比发现植入式桥面连续构造能将混凝土变形在一定范围内分散,从而大幅减小了桥面连续处的应力和计算裂缝宽度,具有较高的应用价值.
교면련속구조시간지교량적일개중요구조조시,단흔용역손배,차역손난수,시공로간지교량적통병.통과소리목전상용적교면련속구조형식,분석료기수력궤리.대목전상규적다과경간지량교적량단변형진행료분석비교,재차기출상통과대량충교면련속구조진행유한원계산분석,득출료교면련속재최불리정황하적응력화렬봉관도.대비발현식입식교면련속구조능장혼응토변형재일정범위내분산,종이대폭감소료교면련속처적응력화계산렬봉관도,구유교고적응용개치.
Continuous slab-deck is an important structural measure for simply-supported girder bridge, but it is easy to be damaged and difficult to be repaired which is a common problem of simple supported beam highway bridge. By sorting out the current commonly used structure types of continuous slab-deck, loading mechanisms of these structure types were analyzed. The deformations of the beam ends in current conventional multi-span simple supported beam bridges were analyzed and compared. On this basis, by finite element analysis of two types of continuous slab-deck, the stress and the crack width in the most adverse circumstance were obtained. The comparison shows that the implantable continuous slab-deck can disperse deformation of concrete in a certain range to significantly reduce the stress and calculated crack width in continuous slab-deck. This structure type has a higher value in application.