Research for developing seismic strengthening methods for masonry buildings in earthquake developing countries

本研究项目分为结构工程研究实验室试验研究和现场调查研究两个不同的研究领域。（1）结构工程实验室的实验研究：为了研究以下三个不同的研究课题，在大分大学结构工程研究室进行了大量的实验研究。每一项研究的主要目的是：（a）开发更高的抗震安全性的约束砖砌体墙，（B）研究不同的材料和方法，如普通钢筋和薄砂浆层，碳纤维布和钢筋混凝土墙的抗震加固方法，以及（c）研究联锁混凝土砌块墙在地震荷载作用下的地震安全性。作为e的结果 关于我们 通过大量的试验研究，探讨了各种试验参数对不同类型砖砌体和混凝土砌块砌体墙抗震性能的影响，并在本研究报告的第2、3、4章中分别给出了所需的全部资料和重要的试验结果。(2)实地调查研究：在为期三年的调查期间，进行了以下两项不同的调查。一个是（a）调查2001年萨尔瓦多地震对砌体建筑结构造成的损坏，另一个是（B）调查适用于韩国现有未加固砌体建筑的结构加固和/或恢复方法。研究报告第5章介绍了2001年萨尔瓦多地震对砌体结构房屋破坏的现场调查结果，第6章介绍了对韩国80多座砌体结构房屋的现场调查结果。少

The present research project is divided into two different research fields on experimental study in structural engineering research laboratory and field investigation research. Main subjects and research results obtained are summarized in the followings:(1) Experimental studies in structural engineering laboratory:In order to investigate the following three different research subjects, a large number of experimental studies were performed in the Structural Engineering Research Laboratory of Oita University. Main objective of each study is, (a) to develop much higher seismic safety of confined brick masonry walls, (b) to investigate the seismic strengthening methods for un-reinforced brick masonry walls by using different materials and methods such as ordinary steel reinforcing bars and thin mortar layers, carbon-fiber sheets and reinforced concrete walls, and (c) to investigate the seismic safety of interlock concrete block walls subjected to earthquake loading. As the results of the e … More xtensive experimental studies, effects of many experimental parameters on the seismic behavior of different kinds of brick and concrete block masonry walls were investigated, and the all necessary information and important text results are presented in Chapter 2, 3 and 4 of the Research Reports, respectively.(2) Field investigation research:Following two different investigations were conducted during the three-year investigation periods. One is (a) to investigate the damage to masonry building structures caused by the 2001 El Salvador earthquake, and the other is (b) to investigate the structural strengthening and/or restoring methods applied to the existing un-reinforced masonry buildings in the Republic of Korea. Filed investigation results on the damage to masonry buildings by the the 2001 El Salvador earthquake are presented in Chapter 5 of the Research Report, and the field investigation results on more than eighty masonry buildings in Korea are intoroduced in Chapter 6 of the Research Report, respectively. Less