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混凝土圓形池鋼筋分批張拉預(yù)應(yīng)力損失計(jì)算
張昌敘1,張煒2
摘 要

(1 陜西省建筑科學(xué)研究院,西安 710082; 2 陜西省古建設(shè)計(jì)研究所,西安  710061)
[摘要]集中荷載法能有效地分析混凝土圓形池在環(huán)向?qū)ΨQ、沿池壁高度非線性荷載作用下的變形和內(nèi)力。對配置環(huán)向預(yù)應(yīng)力鋼筋的混凝土圓形池,通過預(yù)應(yīng)力鋼筋各張拉階段池壁徑向變形的計(jì)算,能較為準(zhǔn)確地確定不同區(qū)段預(yù)應(yīng)力鋼筋的分批張拉應(yīng)力損失。該方法簡便適用,彌補(bǔ)了這類特種結(jié)構(gòu)理論計(jì)算方法的不足。
[關(guān)鍵詞]預(yù)應(yīng)力;鋼筋分批張拉;徑向位移;預(yù)應(yīng)力損失
Calculation of prestressing loss of circular concrete pools by batched tension process
Zhang Changxu1,Zhang Wei2(1 Shaanxi Building Scientific Research Institute,Xi′an 710082,China;2 Shaanxi Provincial Institute for the Design & Conservation of Ancient Architecture,Xi′an 710061,China)
Abstract:The concentrated load method is effective for analyzing the deformation and internal force of the circular concrete pools under the circular symmetric load which is nonlinear along the height of the pool wall. For the circular concrete pool setting with the circular prestressing bar, the prestressing loss by batched tensioning can be obtained by calculating the radial deformation of the pool wall in different tesion process.
Keywords:prestressing; batched tensioning; radial displacement; prestressing loss
作者簡介:張昌敘,教授級高級工程師,Email:zcx919@163.com。
參考文獻(xiàn)
[1]徐至鈞. 繞絲預(yù)應(yīng)力油罐設(shè)計(jì)與施工[M]. 北京:中國建筑工業(yè)出版社,1984.
[2]張昌敘. 不規(guī)則側(cè)壓力作用下圓形池的計(jì)算[J].陜西建筑情報(bào),1981(3).
[3]張昌敘, 張煒. 圓筒形結(jié)構(gòu)計(jì)算[M].北京:中國建筑工業(yè)出版社,2007.

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