基于简化模型的震害模拟与易损性评价影响因素分析

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中图分类号：P315.9;TU312.3 文献标志码：A 文章编号：1000-0844（2026）01—0123—14

Influencing factor analysis of seismic damage simulation and fragility assessment based on simplified models

WANG Yawei' ， WANG Decai 2 ， CAO Junfeng 3，4，5 ， JIANG Qing1

（1.SchoolofCiuil and Hydraulic Engineering，Hefei Uniuersityof Technology，Hefei 230o09，Anhui，China; 2. School of Architecture and Art，Hefei University of Technology，Hefei 2306ol，Anhui，China; 3.Schoolof Resources and Environmental Enginering，Hefei Universityof Technology，Hefei 230o09，Anhui，China; 4.Anhui Earthquake Agency，Hefei 230031，Anhui，China ; 5.Anhui Earthquake Engineering Research Institute，Hefei 230o31，Anhui，China）

Abstract： Simplified structural models are primarily adopted for simulation analysis and evaluation to improve the efficiency of urban seismic damage simulation. This study selects typical urban buildings for a comparative analysis of differences in seismic damage simulation results between shear models and flexural-shear models to reduce computational workload in large-scale urban building simulation. A simplified model is adopted to investigate the impacts of three fundamental building atributes—floor area，construction era，and number of stories—on seismic damage simulation and vulnerability assessment results. Buildings are rationally clasified according to the influence degree of each factor. Results are as folows： （1） When only damage levels are considered，the results from shear and flexural-shear models are nearly identical.（2） The influence of the three factors on simulation and vulnerability results is in the following order： number of stories > construction era > floor area.（3） Buildings with identical conditions but differing floor areas can be grouped as similar structural types.（4） The influence of the construction era can be disregarded in preliminary seismic damage assessments. Validation results through a regional case confirm that omitting the floor area has no significant impact on the results and even enhances computational efficiency.

Keywords： simplified model; building atribute parameters;seismic damage simulation; fragility assessment

0 引言

历史震害资料分析表明，在地震作用下，建筑物的破坏是造成人员死亡、经济损失以及引发其他次生灾害的主导因素[]。（剩余16259字）