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Seismic Damage Assessment Indexes for Masonry Structures
| 题名： | Seismic Damage Assessment Indexes for Masonry Structures |
| 正文语种： | 英文 |
| 作者： | Qiwang Su1; Gaochuang Cai2; Amir Si Larbi3 |
| 作者单位： | 1Assistant Professor, School of Civil Engineering, Southwest Jiaotong Univ., No. 111, 1st North Section, 2nd Ring Rd., Jinniu, Chengdu, Sichuan 610031, China. 2Invited Professor, Ecole Nationale d’Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et de Dynamique des Systèmes, Univ. of Lyon, UMR 5513, 58 Rue Jean Parot, 42023 Saint-Etienne Cedex 2, France; Assistant Professor, Dept. of Architecture, Fukuoka Univ., 8 Chome-19-1 Nanakuma, Jonan, Fukuoka 814-0133, Japan (corresponding author). 3Full Professor, Ecole Nationale d’Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et de Dynamique des Systèmes, Univ. of Lyon, UMR 5513, 58 Rue Jean Parot, 42023 Saint-Etienne Cedex 2, France. |
| 关键词： | Seismic assessment; Damage prediction; Strength and ductility; Confinement of masonry structures |
| 摘要： | This paper proposes a new model to quantify the enhancement effect of confinement elements on the seismic behavior of confined masonry (CM) structures. Using this model, a combined assessment index considering the effects of material strength and the confinement elements on the seismic performance of masonry structures is developed to assess the potential damage of the structures subjected to seismic loads. A field survey of the Wenchuan earthquake is used to calibrate the proposed index and traditional wall density index. The relationship between the two indexes and the damage categories of unreinforced masonry (URM) and CM structures at different seismic intensity zones is discussed. Results show that the two indexes both predict the damage of CM and URM structures well, while the proposed combined index is verified with a better prediction accuracy. Using the two indexes, a complete assessment procedure is proposed for predicting the damage of the URM and CM structures at VIII to X seismic intensity zones. Case studies of two CM buildings at different seismic intensity zones are conducted to explain how to use the proposed assessment procedure and verify its feasibility. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 7 |
| 页码： | 1-14 |
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