Influence of the Seismic Intensity of the Area on the Assessment of Dynamic Resistance of Bridge Structures

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Rusek, Janusz^1

AGH University of Science and Technology in Cracow, al. Mickiewicza 30, Cracow

30-059, Poland^1

关键词: Acceleration response;    Dynamic resistance;    Ground accelerations;    Kinematic excitation;    Numerical calculation;    Seismic intensity;    Structure response;    Upper silesian coal basins;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/3/032019/pdf
DOI  :  10.1088/1757-899X/245/3/032019

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The paper presents the results of the studies assessing the resistance of the existing bridge structures located in areas of varying seismic intensity. The basis for the analysis was an exemplary reinforced concrete road flyover of a slab span structure. Numerical calculations by the Finite Element Method were carried out, using the response spectrum approach in the dynamic analysis, with the use of the standard response spectra according to the Eurocode 1998 and the standard acceleration response spectra for the Upper Silesian Coal Basin and the Legnica-Glogów Copper District. For each individual analyzed case, the structure response to the assigned kinematic excitation was compared with the effects of load combinations adopted at the design stage, setting the limit values of the design horizontal ground acceleration in the horizontal plane (ag,Hmax) and the vertical plane (ag,Vmax). This allowed to assess the effect of seismicity of a specific area on the design dynamic resistance of the studied object. The paper discusses the manner of interpretation and the scope of applicability of the obtained results.