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

本项目由国家自然科学基金公告第90-23号“结构抗震修复与修复研究”资助。本研究项目的两个主要目标是评估：1)老式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。本研究旨在为评估位于潜在高地震活动区域的旧板柱混凝土框架结构的侧向强度和变形能力提供一种方法，但这些结构的设计和详细说明并未考虑显著的侧向强度和延性。这将通过对一个2湾乘1湾的2层钢筋混凝土板柱框架试件进行实验室试验来实现。将制定设计标准，以加强使用延性钢支撑构件的此类结构。这些试验将对现有的少量关于钢筋支撑钢筋混凝土框架结构的横向荷载性能的信息作出重大贡献。

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.