학술논문

震損RC剪力牆之殘餘耐震能力與塑鉸設定探討 / Discussion on the Residual Capacity and Plastic Hinge Properties of Earthquake Damaged RC Shear Walls
Document Type
Article
Source
結構工程 / Structural Engineering. Vol. 37 Issue 3, p48-65. 18 p.
Subject
鋼筋混凝土
剪力牆
殘餘耐震能力
塑鉸
Reinforced concrete
shear wall
residual seismic capacity
plastic hinge
Language
繁體中文
ISSN
1021-7878
Abstract
Due to the high lateral strength and stiffness of the RC shear wall, it can effectively improve the structural system and increase the seismic capacity of the building structure. However, the high stiffness property of RC walls will also easily induce cracking or damage as compared to the beam-column members in the earthquake. The technical problems for judgment of damage status and simulation of damaged components are often difficult to be determined, especially for those RC walls that are only at slightly or moderately damaged status, they may not need retrofitting but their residual seismic capacity should be evaluated. When using the nonlinear pushover analysis procedure to evaluate the residual seismic performance of damaged RC walls. Because researches on the residual seismic performance of damaged RC walls earthquakes are very limited. There is still no quantitative method for the selection of reduction factors on strength, stiffness, and deformation capacity of RC walls with various damaged statuses. Therefore, the main purpose of this paper is to collect and analyze the relative research works of literature on the post-earthquake behavior of RC shear walls. The suggested criteria, parameters, and procedures of the existing post-earthquake assessment guidelines in the U.S. and Japan are compared with those latest publications in the area of the residual capacity of RC walls for discussing their suitability. Finally, a reduction method based on Taiwan seismic evaluation procedure was proposed for modifying the nonlinear hinge properties of damaged RC walls with different damaged states.

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