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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/12562


    Title: 梁火害後之撓曲勁度
    Other Titles: Flexural Stiffness of RC Beams after Fire Damage
    Authors: 高金盛
    Contributors: 淡江大學土木工程學系
    Keywords: 火害;鋼筋混凝土梁;撓曲勁度;fire damage;reinforced concrete beams;Flexural Stiffness
    Date: 1998-09
    Issue Date: 2009-03-26 14:09:48 (UTC+8)
    Publisher: 臺北市:中華民國結構工程學會
    Abstract: 本文旨在探討分析火害後鋼筋混凝土梁構件之撓曲勁度。
    在處理構架應力分析時,構件之撓曲勁度為一不可或缺之參數。過去研究結果顯示,鋼筋混凝土梁構件在火害高溫延燒後,其撓曲勁度會有明顯折減之現象。本文利用火害後簡支梁分別承受正彎矩及負彎矩之撓度分析,模擬探討一般連續梁之梁中央及梁端於不同火害延燒後之撓曲勁度;利用三跨連續梁之撓度分析,模擬探討一般梁構件之撓曲勁度於火害後之折減情形;並進一步綜合建立火害後梁構件殘餘撓曲勁度之簡易推算圖表,供工程實務界在解析火害後鋼筋混凝土結構物之殘餘安全性時參考使用。
    This paper is to investigate the flexural stiffness of the fire damaged R.C. beams.
    In frame structure analysis, the flexural stiffness is one of the most important parameters.The previous papers showed that the flexural stiffness of R.C. beam after fire damage has obvious degradation.
    In this paper, the flexural stiffness at the end part and in the middle part of the fire damaged R.C. beams are investigated by using the model of simply supported beam subjected to positive moment and negative moment. The reductions of the residual flexural stiffness of beam members after fire damaged are also investigated. The tables for simple estimation of the flexural stiffness of fire damaged R.C. beams are established in advance. These tables can be adopted to analyze the residual safety of R.C. structures after fire damaged.
    Relation: 中華民國第四屆結構工程研討會論文集(一)=Proceedings of the 4th National Conference on Structural Engineering,頁513-520
    Appears in Collections:[土木工程學系暨研究所] 會議論文

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