The Influence of The Static Layout on The Stress and Deformation State for Concrete Arched Bridges with Upper Carriageway

IF 0.1 Q4 ENGINEERING, CIVIL Romanian Journal of Transport Infrastructure Pub Date : 2016-12-01 DOI:10.1515/rjti-2016-0049
I. Vlad, C. Chiotan
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Abstract

Abstract Arch bridges were the first constructions with considerable spans built by man, due to the materials and technologies available at that time. Afterwards, these works of art have diversified and are now solutions used in countless situations, especially when crossing deep valleys. Both their economic and architectonic aspects are hard to combat and have led to selecting this type of structure for more and more locations. The paper will contain a brief presentation of some aspects regarding upper path concrete arch bridges composition and design methods. Also, it will have a case study regarding structural stresses over the different construction stages, and for several support hypotheses. The case study will reflect the Crivadia viaduct, situated on DN 66, at km 150+672. The bridge has a main span of 59.20m and an overall height of 15.00m, serving a 7.80m wide carriageway and two 2.20m wide footways. It has a total length of 107.60m. Based on the results of the case study, conclusions will be drawn regarding stress variation over the construction stages and under different support hypothesis, comparing these with the initial results.
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静布置对上行车道混凝土拱桥应力和变形状态的影响
由于当时的材料和技术条件,拱桥是最早由人类建造的具有相当跨度的建筑。后来,这些艺术作品变得多样化,现在已经成为无数情况下的解决方案,特别是在穿越深谷时。它们的经济和建筑方面都很难与之抗衡,并导致越来越多的地方选择这种类型的结构。本文将简要介绍上径混凝土拱桥的组成和设计方法。此外,它将有一个关于不同施工阶段的结构应力的案例研究,以及几个支持假设。该案例研究将反映位于DN 66的Crivadia高架桥,位于150+672公里处。该桥主跨59.20米,总高15.00米,有一条7.80米宽的行车道和两条2.2米宽的人行车道。它的全长为107.60米。根据案例分析的结果,得出施工阶段和不同支持假设下的应力变化情况,并与初步结果进行比较。
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发文量
6
审稿时长
10 weeks
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