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.

砌体建筑业代表了整个加拿大现有，新住宅，商业和工业低至中层建筑的大部分。用混凝土块单元构建的钢筋混凝土砌体（RCM）结构壁是一种有效的抗震力系统，可提供横向强度，刚度和能量耗散能力，以抵抗由地震或大风引起的侧向负载。 RCM建筑物在具有中等地震性的地区的经济和弹性地震设计需要特殊考虑，以详细考虑抗震力的墙壁，以在设计水平地面运动下进行足够的延展性和能量耗散能力。该提案的主要目的是开发低到中等地震质区域的砖石建筑物的抗震横向力系统。目的是增强部分灌输的RCM剪力墙的当前细节实践，并提高其地震性能和韧性。研究重点领域包括以下内容：（1）对平面和非平面模型的地震性能参数增强的实验研究，部分灌溉的RCM剪切壁具有不同的设计细节和配置；（2）对详细数值模型的开发，校准和验证，以模拟部分灌输的RCM剪切壁的非线性响应；（3）量化不同设计参数的影响的数值参数研究；（4）使用增强的配置和细节的部分灌输的RCM墙评估系统级响应；（5）量化拟议的部分灌浆砌体建筑系统的地震弹性增强。除了提高加拿大的地震危险安全外，拟议的研究还将产生新的和互补的实验和分析基本知识，实践进步，代码设计规定和规定的细节要求以及HQP的培训，这将对加拿大的多亿美元砖石制造业制造业，设计和建筑工业产生重大影响。