Effective Seismic Design of Reinforced Concrete Buildings with Different Ductility Levels

剪力墙和联肢墙是常见的抗震体系（SFRS），其用于加固和加固建筑物。 钢筋混凝土（RC）建筑。根据加拿大国家建筑规范（NBCC 2010）， 钢筋混凝土建筑物根据其延性水平分为延性、中等延性和 传统的建筑系统。设计者对SFRS延性等级的选择主要取决于 建筑物的位置、建筑物的特点和规范的高度限制。 建议的研究项目的目的是评估选定的SFRS延性水平的影响， 钢筋混凝土剪力墙建筑物的估计建造成本和抗震性能。该研究项目 将包括两个阶段;第一阶段将调查延性水平对钢筋混凝土剪力墙建筑的影响， 而第二阶段则集中于连墙的钢筋混凝土建筑物。每一期，四个多层 位于三个不同城市的不同高度的建筑物（代表低层、中层和高层）， 加拿大将被选中。就每幢楼宇的高度及位置而言，消防处会根据 最新NBCC 2015和加拿大标准协会CSA A23.3 - 14使用动态分析 作为延性、中等延性或常规构造系统的程序。抗震性能和 将针对特定SFRS的每个延性级别评估成本估算。拟议的研究将有助于 设计师为满足规范要求的SFRS的延性水平的最合适的选择， 同时提供最经济的选择。 该项目的成果对建筑业具有直接的环境/经济效益， 加拿大除了与抗震系统的有效设计相关的节省之外， 这项研究的结果通过减少混凝土和钢材的使用，对环境产生了积极的影响 因此，减少了与混凝土生产过程相关的排放。

Shear walls and coupled walls are common seismic force resisting systems (SFRS) that are used for reinforced concrete (RC) buildings. According to the National Building Code of Canada (NBCC 2010), the SFRS of reinforced concrete buildings are classified based on their ductility level as ductile, moderately ductile and conventional construction systems. The designer's selection of the SFRS level of ductility is primarily governed by the building location, building characteristics, and the height limitations of the code. The objective of the proposed research project is to evaluate the effect of selected SFRS level of ductility on the estimated construction cost and the seismic performance of RC shear wall buildings. The research project will include two phases; the first phase will investigate the effect of ductility level on RC shear wall buildings, whereas the second phase will focus on RC buildings with coupled walls. For each phase, four multi-storey buildings with different heights (representing low, medium and high rise) located in three different cities in Canada will be selected. For each building height and location, the SFRS will be designed according to the most recent NBCC 2015 and Canadian Standard Association CSA A23.3-14 using the Dynamic Analysis Procedure as ductile, moderately ductile, or conventionally constructed system. The seismic performance and cost estimates will be evaluated for each ductility level of a specific SFRS. The proposed research will help the designers for most suitable selection of the ductility level of a SFRS that satisfies the code requirements, meanwhile provide the most economic choice. The outcome of this project has a direct environmental/economic benefit to the construction industry in Canada. In addition to the savings associated with effective design of seismic force resisting systems, the outcome of this research has a positive environmental impact through the reduction of concrete and steel quantities used, hence reducing emissions associated with concrete production processes.