Seismic-resilient partially grouted reinforced concrete masonry building systems

抗震部分灌浆钢筋混凝土砌体建筑系统

基本信息

批准号：
548808-2019
负责人：
Galal, Khaled
金额：
$ 7.29万
依托单位：
Concordia University
依托单位国家：
加拿大
项目类别：
Alliance Grants
财政年份：
2020
资助国家：
加拿大
起止时间：
2020-01-01 至 2021-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=700984
关键词：
Seismic resilient partially grouted reinforced

项目摘要

The masonry construction industry represents a substantial portion of both existing and new residential, commercial and industrial low- to medium-rise structures across Canada. Reinforced Concrete Masonry (RCM) structural walls constructed with concrete block units are an effective seismic force-resisting system that provides lateral strength, stiffness, and energy dissipation capacity required to resist lateral loads arising from earthquakes or high wind. The economical and resilient seismic design of RCM buildings in regions with moderate seismicity requires special considerations of the detailing of the seismic force-resisting walls for sufficient ductility and energy dissipation capacity under the design level ground motion. The main objective of this proposal is to develop seismic-resilient lateral force resisting systems for masonry buildings in low to moderate seismicity regions. The intent is to enhance the current detailing practices of partially grouted RCM shear walls, and improve their seismic performance and resilience. The research focus areas include the following: (1) experimental investigation of the enhancement in seismic performance parameters of scaled models of planar and non-planar partially grouted RCM shear walls with varying design detailing and configurations; (2) development, calibration, and validation of detailed numerical models to simulate the nonlinear response of partially grouted RCM shear walls; (3) numerical parametric studies to quantify the effects of different design parameters; (4) evaluation of the system-level response when utilizing partially grouted RCM walls with the enhanced configurations and detailing; and (5) quantification of the enhancements in seismic-resilience of the proposed partially grouted masonry building system. In addition to enhancing seismic hazard safety in Canada, the proposed research will generate new and complementary experimental and analytical fundamental knowledge, practical advancements, code design provisions and prescriptive detailing requirements, as well as training of HQP, which will have significant impact for the multi-billion-dollar masonry manufacturing, design, and construction industries in Canada.

砖石建筑行业占加拿大现有和新建住宅、商业和工业中低层建筑的很大一部分。由混凝土砌块单元建造的钢筋混凝土砌体（RCM）结构墙是一种有效的抗震力系统，可提供抵抗地震或大风引起的侧向荷载所需的侧向强度、刚度和耗能能力。中度地震地区RCM建筑的经济和抗震设计需要特别考虑抗震墙体的细节设计，以保证在设计水平地震动下有足够的延性和耗能能力。该提案的主要目标是为中低地震区的砖石建筑开发抗震侧向力抵抗系统。其目的是加强当前部分灌浆 RCM 剪力墙的细节设计实践，并提高其抗震性能和弹性。研究重点领域包括：（1）不同设计细节和配置的平面和非平面部分灌浆RCM剪力墙比例模型抗震性能参数增强的实验研究； (2) 开发、校准和验证详细的数值模型，以模拟部分灌浆 RCM 剪力墙的非线性响应； (3) 数值参数研究，以量化不同设计参数的影响； (4) 使用具有增强配置和细节的部分灌浆 RCM 墙时的系统级响应评估； (5) 量化所提出的部分灌浆砖石建筑系统的抗震能力增强效果。除了加强加拿大的地震灾害安全外，拟议的研究还将产生新的、补充性的实验和分析基础知识、实践进展、规范设计规定和规范性细节要求，以及 HQP 培训，这将对多方面产生重大影响。 -加拿大价值数十亿美元的砖石制造、设计和建筑行业。