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首页> 外文会议>World conference on earthquake engineering;WCEE >ANALYSIS ON ELASTO-PLASTIC BEHAVIOR OF AN EXISTINGREINFORCED CONCRETE BUILDING RETROFITTED BY STEELFRAMEDBRACES IN DIFFERENT ARRANGEMENTS ANDSIMPLIFIED EVALUATION METHOD OF HORIZONTAL BEARINGCAPACITY OF THE RETROFITTED BUILDING
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ANALYSIS ON ELASTO-PLASTIC BEHAVIOR OF AN EXISTINGREINFORCED CONCRETE BUILDING RETROFITTED BY STEELFRAMEDBRACES IN DIFFERENT ARRANGEMENTS ANDSIMPLIFIED EVALUATION METHOD OF HORIZONTAL BEARINGCAPACITY OF THE RETROFITTED BUILDING

机译：现浇钢筋混凝土不同布置的钢筋混凝土结构的弹塑性性能分析及简化的水平支撑能力评估方法

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Using analysis models of a building retrofitted with steel-framed braces, this study analyzes the effects ofdifferent brace arrangements on the elasto-plastic behavior of the retrofitted building and the states ofstress in the members in the retrofit zones to determine the characteristics of elasto-plastic behaviorachieved with different bracing arrangements. Then, on the basis of the effects of different bracingarrangements determined, the study proposes a seismic retrofit design method. The results and findings ofthis study can be summarized as follows:1) A retrofit design calculation method and conditions for applying the method have been proposed, andusefulness and practicality of the method have been confirmed.2) Increasing the horizontal load-carrying capacity of the upper stories is difficult in the case of multistorycontinuous bracing, while in the case of discontinuous bracing; the load-carrying capacityincreases in proportion to the number of braces. Discontinuous bracing also makes it easy to achievethe required stiffness of each story and can be used as an effective means of reducing the earthquakeresponse of a building.3) Retrofit design using discontinuous bracing depends on yielding of braces and requires confirming thesafety of adjoining members (e.g., lower-story columns, adjoining beams).4) In cases where discontinuous bracing is used, it is desirable that braces be arranged more or lessregularly, such as in a checkered pattern.
机译：本研究使用钢框架支撑进行改造的建筑物的分析模型，分析了不同支撑布置对改造建筑物的弹塑性行为和改造区域中构件的应力状态的影响，以确定弹塑性的特征。通过不同的支撑方式实现的行为。然后，根据确定的不同支撑布置的影响，研究提出了一种抗震加固设计方法。本研究的结果和结论可归纳为：1）提出了一种改造设计计算方法和应用条件，并确认了该方法的实用性和实用性。2）提高了该模型的水平承载能力。在多层连续支撑的情况下，上层是困难的，而在不连续支撑的情况下，上层是困难的；承载能力与支架数量成比例地增加。不连续支撑还可以轻松实现每个楼层所需的刚度，并且可以用作减少建筑物地震响应的有效手段。3）使用不连续支撑的改造设计取决于支撑的屈服度，并且需要确认相邻构件的安全性（例如， 4）在使用不连续支撑的情况下，理想的是将支撑或多或少规则地布置，例如以方格图案布置。

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