Influence of Permanent Deflections on The Vibrations of Bridge Spans in Operating Conditions

IF 0.7 Q4 MECHANICS

Studia Geotechnica et Mechanica Pub Date : 2022-03-02 DOI:10.2478/sgem-2022-0004

M. Kużawa, A. Mróz, J. Bień

引用次数: 1

Abstract

Abstract The paper presents the method and results of numerical simulations of the mutual dynamic interactions between vehicles and the bridge structure, which has defect in the form of excessive permanent deformations. The parametric analyses were carried out taking into account the following parameters: permanent deflections of spans, with a maximum value ranging from 0 to 150 mm, vehicle speed from 10 m/s (36 km/h) to 30 m/s (108 km/h), and two types of heavy vehicle suspension systems, each with very different properties. The presented analyses are based on the characteristics of real motorway bridge structure with permanent deflections of the multi-span main girders, constructed of steel beams and reinforced concrete slab. The proposed procedure of dynamic numerical analysis can also be useful in the assessment of the influence of permanent deflections on the interactions between vehicles and other types of bridge structures.

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运行状态下永久挠度对桥梁桥梁振动的影响

摘要本文介绍了车辆与桥梁结构相互动力相互作用的数值模拟方法和结果，桥梁结构存在过度永久变形的缺陷。进行参数分析时考虑了以下参数：跨度的永久挠度，最大值范围为0至150 mm，车辆速度为10 m/s（36 km/h）至30 m/s（108 km/h），以及两种类型的重型车辆悬架系统，每种系统都具有非常不同的特性。本文根据实际高速公路桥梁结构的特点，对由钢梁和钢筋混凝土板组成的多跨主梁进行了永久挠度分析。所提出的动态数值分析程序也可用于评估永久挠度对车辆和其他类型桥梁结构之间相互作用的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Studia Geotechnica et Mechanica MECHANICS-

CiteScore

1.30

自引率

16.70%

发文量

审稿时长

16 weeks

期刊介绍： An international journal ‘Studia Geotechnica et Mechanica’ covers new developments in the broad areas of geomechanics as well as structural mechanics. The journal welcomes contributions dealing with original theoretical, numerical as well as experimental work. The following topics are of special interest: Constitutive relations for geomaterials (soils, rocks, concrete, etc.) Modeling of mechanical behaviour of heterogeneous materials at different scales Analysis of coupled thermo-hydro-chemo-mechanical problems Modeling of instabilities and localized deformation Experimental investigations of material properties at different scales Numerical algorithms: formulation and performance Application of numerical techniques to analysis of problems involving foundations, underground structures, slopes and embankment Risk and reliability analysis Analysis of concrete and masonry structures Modeling of case histories

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