Experimental Evaluation of Slab-Column Frame Buildings and the Use of Ductile Steel

该项目得到了美国国家科学基金会第90-23号公告“结构抗震修复与恢复研究”的支持。本研究项目的两个主要目标是评估：1)旧钢筋混凝土板柱框架建筑的横向强度和漂移能力；2)使用延性钢支撑对此类结构进行抗震升级。这项研究旨在为评估旧的板柱混凝土框架结构的横向强度和变形能力提供一种方法，这些结构位于潜在的高地震活动区，但没有针对显著的横向强度和延性进行设计和详细设计。这将通过对2个开间乘1个开间的2层钢筋混凝土板柱框架试件进行实验室测试来实现。将制定用延性钢支撑构件加固此类结构的设计标准。这些试验应该对现有的少量关于用钢支撑构件加固的混凝土框架结构的水平荷载性能的信息做出重大贡献。

This project is supported under NSF Announcement No. 90-23, "Repair and Rehabilitation Research for Seismic Resistance of Structures." The two primary goals of this research project are the evaluation of: 1) the lateral strength and drift capabilities of older reinforced concrete slab-column frame buildings and 2) the use of ductile steel bracing for seismic upgrading of such structures. This research is intended to contribute to a methodology for evaluating the lateral strength and deformation capacity of older slab-column concrete frame structures which are located in regions of potentially high seismic activity, but were not designed and detailed for significant lateral strength and ductility. This will be achieved by conducting laboratory tests of a 2 bay by 1 bay 2-story reinforced concrete slab- column frame specimen. Design criteria will be developed for strengthening such structures with ductile steel bracing members. These tests should make a significant contribution to the small amount of information now available on the lateral load behavior of concrete frame structures strengthened with steel bracing members.