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首页> 外文期刊>Bulletin of Earthquake Engineering >Earthquake performance assessment and rehabilitation of two historical unreinforced masonry buildings
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Earthquake performance assessment and rehabilitation of two historical unreinforced masonry buildings

机译：两座历史未加固的砖石建筑的地震性能评估和修复

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The paper describes the earthquake performance assessment of two historical buildings located in Istanbul exposed to a Mw = 7+ earthquake expected to hit the city and proposes solutions for their structural rehabilitation and/or strengthening. Both buildings are unreinforced clay brick masonry (URM) structures built in 1869 and 1885, respectively. The first building is a rectangular-shaped structure rising on four floors. The second one is L-shaped with one basement and three normal floors above ground. They survived the 1894, Ms = 7.0 Istanbul Earthquake, during which widespread damage to URM buildings took place in the city. Earthquake ground motion to be used in performance assessment and retrofit design is determined through probabilistic and deterministic seismic hazard assessment. Strength characteristics of the brick walls are assessed on the basis of Schmidt hammer test results and information reported in the literature. Dynamic properties of the buildings (fundamental vibration periods) are measured via ambient vibration tests. The buildings are modelled and analyzed as three-dimensional assembly of finite elements. Following the preliminary assessment based on the equivalent earthquake loads method, the dynamic analysis procedure of FEMA 356 (Pre-standard and commentary for the seismic rehabilitation of buildings, American Society of Civil Engineers, Reston, 2000) and ASCE/SEI 41-06 (Seismic rehabilitation of existing buildings, American Society of Civil Engineers, Reston, 2007) is followed to obtain dynamic structural response of the buildings and to evaluate their earthquake performance. In order to improve earthquake resistance of the buildings, reinforced cement jacketing of the main load carrying walls and application of fiber reinforced polymer bands to the secondary walls are proposed.
机译：本文描述了位于伊斯坦布尔的两座历史建筑的地震性能评估，这些建筑遭受了预计将袭击该城市的M w = 7+地震，并提出了对其结构进行修复和/或加固的解决方案。这两座建筑都是分别于1869年和1885年建造的无筋粘土砖石（URM）结构。第一建筑物是四层楼高的矩形结构。第二个是L形，有一个地下室，地上三层。他们在1894年的M s = 7.0级伊斯坦布尔地震中幸存下来，在此期间，该市URM建筑物遭到了广泛破坏。用于性能评估和改造设计的地震地震动是通过概率性和确定性地震危险性评估确定的。根据施密特锤测试结果和文献报道的信息评估砖墙的强度特性。建筑物的动态特性（基本振动周期）通过环境振动测试进行测量。将建筑物建模和分析为有限元的三维装配。在根据等效地震荷载法进行初步评估之后，进行了FEMA 356（建筑物抗震修复的标准和评论，美国土木工程师协会，雷斯顿，2000年）和ASCE / SEI 41-06（现有建筑物的抗震修复，美国土木工程师学会，雷斯顿，2007）被用来获得建筑物的动态结构响应并评估其抗震性能。为了提高建筑物的抗震性，提出了主承重墙的增强水泥护套以及在次生墙上应用纤维增强聚合物带。

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