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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：
2021
资助国家：
加拿大
起止时间：
2021-01-01 至 2022-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=720120
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.

砖石建筑行业代表了加拿大现有和新的住宅、商业和工业低层到中层建筑的很大一部分。钢筋混凝土砌块结构墙是一种有效的抗震系统，可提供抗地震或大风引起的侧向荷载所需的侧向强度、刚度和能量耗散能力。中等地震活动性地区RCM建筑的经济和弹性抗震设计需要特别考虑抗震墙的细节，以便在设计水平地震动下具有足够的延性和耗能能力。本提案的主要目标是为低至中等地震活动性地区的砌体建筑开发具有地震弹性的抗侧向力系统。目的是加强目前部分灌浆RCM剪力墙的详细实践，并提高其抗震性能和弹性。研究重点包括：(1)平面和非平面部分注浆RCM剪力墙按比例模型在不同设计细节和配置下的抗震性能参数增强试验研究；(2)开发、校准和验证详细的数值模型，以模拟部分注浆RCM剪力墙的非线性响应；(3)数值参数研究，量化不同设计参数的影响；(4)在使用部分灌浆的RCM墙时，对其进行系统级响应评估；(5)定量分析了部分灌浆砌体建筑体系抗震性能的提高。除了加强加拿大的地震危险安全外，拟议的研究将产生新的和互补的实验和分析基础知识，实践进步，规范设计条款和规范性详细要求，以及HQP培训，这将对加拿大数十亿美元的砌体制造，设计和建筑行业产生重大影响。