建筑结构学报2025，Vol.46Issue(5)：113-125,13.DOI:10.14006/j.jzjgxb.2024.0390
C100混凝土和Q550钢板组合剪力墙用于高层建筑减碳设计研究
Research on carbon reduction design of high-rise buildings using C100 concrete and Q550 steel-plate composite shear walls
摘要
Abstract
To promote resilient city construction and green low-carbon transformation,strengthen the coordinated development of low-carbon resilience in high-rise buildings,and aim to improve the carbon reduction level of buildings,the applicability of high-strength materials used in high-rise buildings was studied while ensuring that the seismic resilience of the structure was not reduced.Taking the super high-rise buildings with C100 concrete and Q550 steel-plate composite shear walls as the research object,this study conducted research on the applicable scope of the system in terms of structural fortification intensity and height.Finite element analysis models for groups Ⅰ～Ⅲwere designed and established,and the structural fortification intensity and height of models for groups Ⅰ～Ⅲ were 7 degrees(0.15g)and 198.4 m,8 degrees(0.20g)and 198.4 m,and 7 degrees(0.15g)and 440 m,respectively.Each group containing a conventional model and a high-performance model,both of which were frame-core tube structures.The difference lied in the core tube.The core tube of the conventional model used reinforced concrete shear walls and reinforced concrete coupling beams,while the core tube of the high-performance model uses C100 concrete and Q550 steel-plate composite shear walls and replaceable energy dissipation coupling beams.The seismic resilience evaluation work of each model was conducted using elastoplastic time history analysis and Monte Carlo method.The carbon emission factor of each strength grade of concrete was calibrated,and the carbon emission assessment of each model in the building material production stage was also conducted.The research results show that the seismic resilience of the high-performance model in the same group is always better than that of the conventional model;the carbon emission reduction rate of the high-performance model compared with the conventional model in groups Ⅰ～Ⅲ is 1.3％,15.4％,and 12.0％,respectively;the high-performance structural system can achieve a balance between seismic resilience and green low-carbon when the structural fortification intensity is no less than 7 degrees(0.15g)and the building height is no less than 200 m;Meanwhile,with the increase of structural fortification intensity or structural height,high-performance models have better economic benefits compared to conventional models.关键词
高性能结构体系/C100混凝土和Q550钢板组合剪力墙/减碳/抗震韧性评估/碳排放评估Key words
high performance structural system/C100 concrete and Q550 steel-plate composite shear walls/carbon reduction/seismic resilience assessment/carbon emission assessment分类
土木建筑引用本文复制引用
张磊,王翠坤,陈才华..C100混凝土和Q550钢板组合剪力墙用于高层建筑减碳设计研究[J].建筑结构学报,2025,46(5):113-125,13.基金项目
国家重点研发计划(2022YFC3802000),中国建筑科学研究院有限公司科研项目(20220122330730021),中建研科技股份有限公司科研项目(20221902970730032). （2022YFC3802000）
