Performance and Retrofit of RC Shear Walls with Openings

9416487华莱士现行法规关于带洞口的结构墙的规定导致新建筑和现有建筑的翻新都需要大量加固。在翻新的情况下，升级成本通常接近或超过建筑重置成本。现有的建筑通常被拆除，取而代之的是安装了一种可能不太可靠的横向受力系统的建筑。该项目的目标是制定基于绩效的翻新指导方针。北岭地震为研究用穿孔剪力墙建造的“老”钢筋混凝土建筑的性能提供了一个极好的机会。这项研究的主要工作将是比较预期和观测到的建筑性能，并评估使用穿孔钢筋混凝土剪力墙的建筑物的当前翻新策略，以抗侧向荷载。研究结果有可能对钢筋混凝土穿孔剪力墙设计准则的制定产生重大影响。这个研究项目的项目组结合了“研究”和“实践”工程师的才能。这一合作努力将使该项目能够涵盖与穿孔剪力墙相关的广泛的设计和翻新问题，这是评估当前实践状况和未来研究需求所必需的。这是一个北岭地震项目。***

9416487 Wallace Current code provisions for structural walls with openings result in substantial reinforcing requirements for both new construction and the retrofit of existing construction. In the case of retrofit, the upgrade cost is typically close to or exceeds the building replacement cost. Existing buildings are commonly demolished and replaced with a building incorporating a potentially less reliable lateral forced resisting system. The objective of this project is to develop performance- based retrofit guidelines. A focused research project is conducted to identify appropriate analysis and design methodologies for both new and existing construction.The Northridge Earthquake provides an excellent opportunity to study the performance of "older" reinforced concrete buildings constructed with perforated shear walls. The primary effort of the research will be to compare expected versus observed building performance and to assess current retrofit strategies of buildings utilizing perforated reinforced concrete (RC) shear walls for lateral load resistance. The results of the research have the potential to significantly impact the development of design guidelines for RC perforated shear walls. The project team for this research project combines the talents of "research" and "practicing" engineers. This collaborative effort will enable the project to encompass the broad spectrum of design and retrofit issues associated with perforated shear walls necessary to assess the current state-of-the-practice as well as future research needs. This is a Northridge Earthquake project. ***