Development of a novel infill frame system using concrete masonry infills bounded by masonry frames

使用以砌体框架为界的混凝土砌体填充物开发新型填充框架系统

• 批准号: 508786-2017
• 负责人: Liu, Yi
• 金额: $ 5.58万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=657846
• 关键词: Development; novel; infill; frame; system

Masonry walls infilled steel or reinforced concrete (RC) frames have been commonly used in modern building construction to serve as either partitions for separating spaces or cladding for building closure. It is also understood that if the wall is built tight against its bounding frame, the infill will interact with the frame and participate in the load sharing, thus changing the structural performance of the frame system. Previous studies have shown that properly designed infills provide significant strength, ductility and energy dissipation for the frame system in resisting various types of lateral loads-even after considerable cracking. Built on the knowledge of the masonry infilled steel/RC frames, this research is to develop a novel, all-masonry infilled frame system and evaluate its structural performance in comparison with conventional infilled steel or RC frame systems. An all-masonry infilled frame is made of one material, i.e. masonry, where the masonry infill is bounded by masonry frames formed by masonry reinforced columns and tied beams. Construction of the frame and infill can occur at the same time, which will simplify and streamline both the design and construction processes as the need to coordinate with concrete or steel trades as in the steel or RC frame cases is eliminated. The all-masonry infilled system is intended to combine the boundary elements (masonry columns and beams ) and infills to form an effective lateral load resisting system in one material. This will have a significant impact on the industry practice in design and construction of masonry infill walls. This research is to develop the all-masonry frame system with different configurations and construction details and investigate its structural behaviour under both in-plane and out-of-plane loading through extensive experimental testing and numerical studies. It is expected that upon the completion of the project, constructive recommendations regarding design and analysis applicable to industry practice can be made. As one of the long-term objectives, the experimental and analytical results of the study will be used to establish a set of unified equations and design charts to be considered for inclusion in the current Canadian masonry design standard for all-masonry infilled frames. **********

砌体墙填充的钢或钢筋混凝土（RC）框架通常用于现代建筑结构中，可作为分隔空间或覆层建筑物封闭的分区。还可以理解，如果墙壁紧密地与其边界框架建造，则填充物将与框架相互作用并参与负载共享，从而改变框架系统的结构性性能。先前的研究表明，正确设计的填充物可为框架系统提供明显的强度，延展性和能量耗散，以抵抗各种类型的侧向载荷 - 甚至在大量裂纹后。这项研究基于砖石填充的钢/RC框架的知识，是为了开发一种新颖的，全剂量填充的框架系统，并根据常规填充的钢或RC框架系统评估其结构性性能。全垫填充的框架是由一种材料（即砌体）制成的，砌体填充物是由砌体钢筋和绑定梁形成的砌体框架界定的。可以同时进行框架和填充物的构建，这将简化和简化设计和施工过程，因为需要与钢或RC框架案例中的混凝土或钢制交易进行协调。全剂量填充的系统旨在将边界元素（砌体柱和梁）和填充物结合起来，并在一种材料中形成有效的侧向载荷系统。这将对砌体填充墙的设计和建造行业实践产生重大影响。这项研究是开发具有不同构型和施工细节的全剂框架系统，并通过广泛的实验测试和数值研究来研究其在面内和平面外负载下的结构行为。可以预期，项目完成后，可以提出有关适用于行业实践的设计和分析的建设性建议。作为长期目标之一，该研究的实验和分析结果将用于建立一组统一的方程式和设计图表，以考虑将所有垫子填充框架的加拿大砌体设计标准纳入当前的加拿大砌体设计标准。 **********