使用UBC 97和IBC 2021的RC时刻抵抗和双的地震性能和成本比较
Sarmad Shakeel1, Saadan Hussain Khan2, Syed Aayan Saqib2
1Department of Civil and Structural Engineering, The University of Sheffield, Sheffield, S1 3JD, UK. s.shakeel@sheffield.ac.uk.
Scientific reports
|July 16, 2024
概括
国际建筑法典 (IBC-21) 的地震危害定义影响了钢筋混凝土建筑的性能,并且成本高于统一建筑法典 (UBC-97). 这项研究分析了这些影响在巴基斯坦.
科学领域:
- 结构工程 结构工程
- 地震工程的工程是地震工程.
- 土木工程 土木工程是指土木工程.
背景情况:
- 统一建筑法典 (UBC-97) 已被国际建筑法典 (IBC-21) 取代,引入了对地震危害的新定义.
- IBC-21用光谱加速取代了地面峰值加速 (PGA),显著改变了地震危险评估.
研究的目的:
- 调查IBC-21地震危险定义对钢筋混凝土 (RC) 建筑物的结构性能的影响.
- 评估IBC-21与UBC-97相比在新建筑施工中采用IBC-97的财务影响,特别是资本成本.
- 为发展中国家提供相关的见解,以巴基斯坦为案例研究.
主要方法:
- 使用非线性推移分析来评估典型的7层RC住宅建筑的结构性能.
- 用成本估计,重点是钢铁和混凝土,来确定财务影响.
- 该研究考虑了巴基斯坦高低地震危险区的建筑物.
主要成果:
- 转向IBC-21的光谱加速改变了地震危险的定义,影响了结构分析.
- 采用IBC-21可能会导致对RC建筑的结构设计要求和相关成本的变化.
- 该研究量化了UBC-97和IBC-21之间结构性绩效和资本支出的差异.
结论:
- 在IBC-21中更新的地震危害定义需要对RC建筑的结构设计实践进行重新评估.
- 了解过渡到IBC-21的结构和财务后果对于地震活跃地区的建筑项目至关重要.
- 这项研究为发展中国家的政策制定者和工程师提供了有关地震代码采用的宝贵数据.
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