FIELD TEST OF RC SCHOOL BUILDING RETROFITTED BY POST-TENSIONED RODS
The 1985 Mexico City Earthquake and the 1999 Chi-Chi Earthquake revealed the seismically insufficient performance of the RC school buildings both in Mexico and Taiwan. Seismic retrofit of these numerous vulnerable buildings is an important societal issue to be resolved. Field pushover tests provide a direct approach to assess the seismic behavior of real building structures and a precious chance to verify the seismic retrofitting methods. Renewal of school buildings provides an opportunity to make use of the buildings to be demolished as the specimens for the field tests. In August 2007, one existing 2-story school building of Guanmiao Elementary School in Taiwan had been successfully field tested. This paper reports the test results of two specimens: the school building in its as-built form and the school building retrofitted by post-tensioned rods.The as-built specimen consisted of two 4-bay/2-story RC frames partially infilled with brick walls. The seismic retrofit design required installing sixteen post-tensioned rods and stressing each rod to half of its yield strength.Retrofitting school buildings using post-tensioned tendons is a technology widely used in Mexico. It has been proved to be an economic and constructible retrofitting method. Experimental observations in field tests indicated that the seismic performance of school frames can be effectively retrofitted using post-tensioned rods.Main results of these tests are reported, analyzed and discussed in this paper.
Field Test Retrofit Reinforced Concrete School Building Post-Tensioned Rod
S.J. Hwang T.C. Chiou F.P. Hsiao Y.J. Chiou S.M. Alcocer
Dept. of Civil Engineering, Taiwan University, Taipei, Chinese Taiwan Center for Research on Earthquake Engineering(NCREE), Taipei, Chinese Taiwan Dept. of Civil Engineering, Cheng Kung University, Tainan, Chinese Taiwan Instituto de Ingeniería, Universidad Nacional Autónoma de México, Mexico City, Mexico
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）