884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

(同濟(jì)大學(xué)土木工程防災(zāi)國家重點(diǎn)實(shí)驗(yàn)室，上海 200092)

［摘要］介紹了《工業(yè)循環(huán)水冷卻設(shè)計(jì)規(guī)范》(GB/T50102—2003)和《火力發(fā)電廠水工設(shè)計(jì)規(guī)范》(DL/T5339—2006)中冷卻塔靜風(fēng)局部穩(wěn)定檢算方法——屈曲臨界應(yīng)力狀態(tài)的公式來源、試驗(yàn)背景以及參數(shù)取值原則等，便于設(shè)計(jì)研究人員正確理解和應(yīng)用局部穩(wěn)定檢算公式。根據(jù)Mungan針對(duì)圓柱殼、雙曲殼以及加勁雙曲殼的一系列試驗(yàn)及與其他國家規(guī)范的比較，指出了現(xiàn)行規(guī)范中相關(guān)條款的缺陷，為規(guī)范條款的修訂和完善提供了參考。

［關(guān)鍵詞］雙曲殼體冷卻塔；規(guī)范；屈曲臨界應(yīng)力狀態(tài)；局部穩(wěn)定

中圖分類號(hào)：TU33+2，TU271.1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)03-0100-10

Origin of specifications about local buckling of hyperboloidal cooling towers in current codes

Zhang Junfeng, Ge Yaojun

(State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)

Abstract:Buckling stress state (BSS) approach used for local buckling design of hyperboloidal cooling towers in GB/T 50102—2003 and DL/T5339—2006 was introduced, including the source of related formulas, background experiments, principles for parameter values and so on. As supplement for our codes, the introduction provided an effective approach for the understanding and application by researchers and designers. Based on the background experiments carried out by Mungan and comparison between other codes, the defects of related specifications in our current codes were pointed out and suggestion was provided for the revision and improvement of our current codes.

Keywords:hyperboloidal cooling tower; code; buckling stress state; local buckling

科技部重大科技項(xiàng)目(2008ZX06004-001)，國家自然科學(xué)基金項(xiàng)目(50978203)。

作者簡(jiǎn)介：張軍鋒，博士研究生，Email: brilliantshine@163.com。

參考文獻(xiàn)

［1］GB/T50102—2003工業(yè)循環(huán)水冷卻設(shè)計(jì)規(guī)范［S］. 北京: 中國計(jì)劃出版社, 2003.

［2］DL/T5339—2006火力發(fā)電廠水工設(shè)計(jì)規(guī)范［S］. 北京: 中國電力出版社, 2006.

［3］BS 4485 Part 4.Code of practice for structural design and construction-water cooling towers［S］. London: British Standard Institution, 1996.

［4］VGB-Guideline: Structural design of cooling towertechnical guideline for the structural design, computation and execution of cooling towers (VGB-R 610Ue)［S］. Essen: BTR Bautechnik bei Kühltürmen, 2005.

［5］DER T J, FIDLER R. A model study of the buckling behavior of hyperbolic shells［C］// Proceedings of the Institution of Civil Engineers, London, England, 1968, 41(1): 105-118.

［6］MUNGAN I. Buckling stress states of cylindrical shells［J］. Journal of the Structural Division, ASCE, 1974, 100(11): 2289-2306.

［7］MUNGAN I. Buckling stress states of hyperboloidal shells［J］. Journal of the Structural Division, ASCE, 1976, 102(10): 2005-2020.

［8］MUNGAN I. Buckling stresses of stiffened hyperboloidal shells［J］. Journal of the Structural Division, ASCE, 1979, 105(8): 1589-1604.

［9］MUNGAN I, LEHMKMPER O. Buckling of stiffened hyperboloidal cooling towers［J］. Journal of the Structural Division, ASCE, 1979, 105(10): 1999-2007.

［10］ALMANNAI A, BASAR Y, MUNGAN I. Basic aspects of buckling of cooling tower shells［J］. Journal of theStructural Division, ASCE, 1981, 107(3): 521-534.

［11］MUNGAN I. Buckling of reinforced concrete cooling tower shells: BSS approach［J］. ACI Structural Journal, 1982, 79(5): 387-391.

［12］ZERNA W, MUNGAN I. Windbuckling approach for RC cooling towers［J］. Journal of the Engineering Mechanics, 1983, 109(3): 836-848.

［13］COLE P P, ABEL J F, Billington D P. Buckling of coolingtower shells: state of theart［J］. Journal of the Structural Division, 1975, 101(6): 1185-1203.

［14］MEDWADOWSKI S J. Buckling of concrete shells: An overview［J］. Journal of the International Association for Shell and Spatial Structures, 2004, 45(1): 51-63.

［15］IASS. Recommendations for the design of hyperbolic or other similarly shaped cooling towers［C］//International Association for Shell and Spatial Structures, Working Group No. 3, Brussels, Belgium, 1977.

［16］IASS. Recommendations for the design of hyperbolic or other similarly shaped cooling towers［C］// International Association for Shell and Spatial Structures, Working Group No. 3, Spain, Madrid, 1979.

［17］ABEL J F, BILLINGTON D P, NAGY D A, et al. Buckling of cooling towers［J］. Journal of the Structural Division, 1982, 108(10): 2162-2174.

［18］同濟(jì)大學(xué)土木工程防災(zāi)國家重點(diǎn)實(shí)驗(yàn)室. 浙江國華寧海電廠特大型冷卻塔結(jié)構(gòu)風(fēng)洞試驗(yàn)研究報(bào)告［R］. 2006.

［19］同濟(jì)大學(xué)土木工程防災(zāi)國家重點(diǎn)實(shí)驗(yàn)室. 印度TALWANDI煤電站冷卻塔抗風(fēng)抗震性能研究報(bào)告［R］. 2010.

［20］李鵬飛, 趙林, 葛耀君,等. 超大型冷卻塔風(fēng)荷載特性風(fēng)洞試驗(yàn)研究［J］. 工程力學(xué), 2008, 25(6): 60-67.