外文翻譯---通過建筑結(jié)構(gòu)設(shè)計(jì)以改善建筑物的抗倒性-wenkub.com
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【正文】 2010 [12] Vlassis AG. Progressive Collapse Assessment of Tall Buildings。 Composite Structures Sydney Australia。 2008, Vol. 30, No. 5 pp. 1424 – 1438. [5] Nethercot DA. Utilising Strength, Stiffeners and Ductility in Enhancing the Robustness of Steel Composite Frame Structures , in Congresso de Construcao Metalica e Mistro, ed L da Silva el, Lisbon。 圖3：?jiǎn)瘟旱姆蔷€性靜力反應(yīng)*a) 首先拉力組件的產(chǎn)生（支撐連接的頂級(jí)螺栓排）*b) 其中的一個(gè)連接（支撐）的光束翼緣的總功率*c) 系統(tǒng)的總功率（底部中跨連接的螺栓行的破壞）*d) 軸向載荷變成零（在軸向載荷從抗壓到抗拉變化的地方的梁的撓度）*e) 一個(gè)連接的翼緣力在軸向荷載變相等的地方的梁的撓度參考文獻(xiàn)[1] Gudmundsson GV and Izzuddin BA. The Sudden Column Loss Idealisation for Disproportionate Collapse Assessment. The Structural Engineer。*c 該方法可以實(shí)現(xiàn)在結(jié)構(gòu)，亞結(jié)構(gòu)，地板格柵或單梁的標(biāo)準(zhǔn)（見圖2）.*c 一個(gè)現(xiàn)實(shí)的破壞標(biāo)準(zhǔn)被采用，對(duì)應(yīng)于在連接中到達(dá)延性限制。*c 方法應(yīng)該允許原因和結(jié)果研究和適用于定量判斷的制定。*c 失敗基本上對(duì)應(yīng)于在受損狀態(tài)下構(gòu)件的無能通過一個(gè)新的沒有關(guān)鍵元素的分離的平衡位置圖2:簡(jiǎn)化的多層次評(píng)估方法抗連續(xù)倒塌附加裝置也有人提出，為了讓這種方法被工程師使用。該方法可以在分析方面的高度化的不同程度被實(shí)現(xiàn)；比如，在美國(guó)最近的研究為線性靜力分析，非線性靜態(tài)或非線性動(dòng)態(tài)分析制定規(guī)定和為各自的使用提供一些指導(dǎo)。無論如何，近代研究（Nethercot et al 2010a。兩種最常用設(shè)計(jì)方法旨在解決連續(xù)倒塌這一問題：*c 提供綁扎能力*c 檢查交替的荷載通道圖1:領(lǐng)帶部隊(duì)在一個(gè)框架結(jié)構(gòu)首先，本質(zhì)上的規(guī)范和包括確保梁，柱，樓梯和樓板（或者屋蓋）可以聯(lián)合起來提供一個(gè)規(guī)定的低級(jí)的水平聯(lián)系抗力等級(jí)；垂直荷載的實(shí)際值要求是通常有相關(guān)的。在這樣做,當(dāng)然,至關(guān)重要的風(fēng)險(xiǎn),包括一個(gè)觸發(fā)事件和失敗的結(jié)果,所以更繁重的結(jié)構(gòu)要求被適當(dāng)?shù)厥褂谩Ｈ【喠硕嗄陙硭^的系統(tǒng)構(gòu)建方案，拆除了幾個(gè)完整的建筑物，排除高層建筑物里的臨時(shí)瓦斯和建立建構(gòu)安全方面的常務(wù)委員會(huì)。但是,近年來,發(fā)展成為一個(gè)復(fù)雜的消防工程學(xué)科，關(guān)心火災(zāi)荷載，提供防護(hù)系統(tǒng),如灑水裝置，在發(fā)生火災(zāi)情況下的反應(yīng)的計(jì)算,能夠使定量對(duì)比結(jié)構(gòu)安排之間選擇。作為客戶：用戶和公眾已經(jīng)變得越來越復(fù)雜,因此要求更高的期望，因此，它成為必要的設(shè)計(jì)師代替一個(gè)永久的越來越多的結(jié)構(gòu)性問題的范圍的主要是通過考慮達(dá)到這個(gè)條件將或多或少受到不可接受的方法。關(guān)鍵詞：復(fù)合結(jié)構(gòu)，漸進(jìn)式折疊，魯棒性，鋼鐵結(jié)構(gòu)，結(jié)構(gòu)設(shè)計(jì)隨著時(shí)間的推移各種不同的結(jié)構(gòu)設(shè)計(jì)原理被提出,他們發(fā)展的自然回想：*c 越來越關(guān)注確保足夠的性能?？惯B續(xù)倒塌，或者，更特別的是，了解力學(xué)的現(xiàn)象和發(fā)展適當(dāng)?shù)姆绞?，以適應(yīng)我們正常的框架內(nèi)審議的結(jié)構(gòu)設(shè)計(jì)，可以這么認(rèn)為。 for example, recent thinking in the United States (SEI 2010) makes provision for any of: linear static, nonlinear static or nonlinear dynamic analysis and provides some guidance on the use of each. It may also be used as the basis for more sophisticated numerical studies of particular structures and particular incidents . forensic work。 Steel structures。外文原稿2The Twelfth East AsiaPacific Conference on Structural Engineering and Construction Design of Building Structures to Improve their Resistance to Progressive Collapse D A Nethercota a Department of Civil and Environmental Engineering, Imperial College LondonAbstract：It is rare nowadays for a “new topic” to emerge within the relatively mature field of Structural Engineering. Progressive collapseor, more particularly, understanding the mechanics of the phenomenon and developing suitable ways to acmodate its consideration within our normal frameworks for structural designcan be so regarded. Beginning with illustrations drawn from around the world over several decades and culminating in the highly public WTC collapses, those features essential for a representative treatment are identified and early design approaches are reviewed. More recent work is then reported, concentrating on developments of the past seven years at Imperial College London, where a prehensive approach capable of being implemented on a variety of levels and suitable for direct use by designers has been under development. Illustrative results are used to assist in identifying some of the key governing features, to show how quantitative parisons between different arrangements may now be made and to illustrate the inappropria
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