NEHRP Clearinghouse

Title
Earthquake-Simulation Tests of a Ten-Story Reinforced Concrete Frame with a Discontinued First-Level Beam.
File
PB287807.pdf
Author(s)
Moehle, J. P.; Sozen, M. A.
Source
National Science Foundation, Washington, DC., August 1978, 174 p.
Identifying Number(s)
['STRUCTURAL RESEARCH SER-451', 'UILU-ENG-78-2014']
Abstract
A small-scale, ten-story, reinforced concrete frame structure with relatively flexible lower stories was subjected successively to simulated earthquakes of increasing intensity on the University of Illinois Earthquake Simulator. The test structure comprised two frames situated opposite one another with strong axes parallel to a horizontal base motion and with story-masses spanning between. The frames had relatively 'tall' first and last stories and a discontinued first floor-level, exterior-span beam. Earthquake simulation tests were complemented by free-vibration tests and steady-state sinusoidal tests at a series of frequencies bounding the apparent fundamental frequency. This report documents the experimental work, presents data (including time-response histories), and discusses the observed dynamic response in relation to stiffness, strength, and energy-dissipative capacity.
Keywords
Dynamic response; Buildings; Earthquake engineering; Earthquakes; Vibration; Reinforced concrete; Concrete construction; Spectrum analysis; Resonant frequency; Dynamic structural analysis