Evaluation criteria for seismic performance and carbon emission assessment methodology of wire-mesh concrete sandwich walls
Hao Wang,Wenqi Lu,Wenyu Tian,Wentao Qiao,Chao Luo
Abstract
Wire-mesh concrete sandwich walls (WCWs) represent a composite structural system known for its lightweight construction and low-carbon advantages. However, standardized criteria for evaluating their seismic performance remain insufficient, and quantitative assessments of their carbon reduction potential lack rigorous scientific validation—factors that hinder broader engineering application. In this study, incremental dynamic analysis (IDA) and quantile regression were employed to establish, for the first time, a three-tier seismic performance evaluation framework for WCWs based on inter-story drift ratio and inter-story shear force. Furthermore, a novel four-stage correlation model linking seismic intensity measures (IM), structural response, wall dimensions, and carbon emissions was developed to quantitatively relate seismic design parameters to embodied carbon emissions. This model provides a theoretical basis for the integrated design of structural safety and sustainability in green buildings. A case study of a WCW building demonstrated a 41.19% reduction in carbon emissions compared to conventional reinforced concrete shear walls. These findings offer critical theoretical and technical insights for the application of WCWs in sustainable construction.
Hao Wang — 1) Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China, 2) Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
Wenqi Lu, Wenyu Tian — School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
Wentao Qiao, Chao Luo — Key Laboratory of Road and Railway Engineering Safety Control (Ministry of Education), Shijiazhuang Tiedao University, Shijiazhuang 050043, China
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