外文翻譯---通過建筑結(jié)構(gòu)設(shè)計以改善建筑物的抗倒性-免費閱讀
【正文】 2010b [10] SEI Disproportionate Collapse Standards and Guidance Committee. Design Procedures, Draft Committee Document。 2007, Vol. 160. No. SB4 pp. 197206. [3] Izzuddin BA, Vlassis AG, Elghazouli AY, and Nethercot DA. Progressive Collapse of MultiStorey Buildings due to Sudden Column Loss Part I Simplified Assessment Framework, Engineering Structures。一個結(jié)合了三個基本特征但是觀察五個理想功能的方法最初被開發(fā)（Vlassis 2007）；它后來被開發(fā)的跟精確（Stylianidis 2010）。三個特征已經(jīng)預(yù)先被鑒證出作為任何合理的現(xiàn)實的方法去設(shè)計對抗連續(xù)倒塌的必要部分：*c 事件發(fā)生在非常短的時間段內(nèi)和正在的失敗是因此動態(tài)。這個方法對于觀察是簡單的，只需要很少的結(jié)構(gòu)計算和在最初的規(guī)定被發(fā)現(xiàn)是不充分的的情況下，能通過提供更多的實質(zhì)性的連接或在一個有趣的近代發(fā)展中水泥樓板中施加額外加固，認(rèn)識到鏈?zhǔn)椒磻?yīng)的連接的生成，US 。然后，結(jié)構(gòu)設(shè)計指導(dǎo)在當(dāng)時產(chǎn)生——仍然決定了很多現(xiàn)在的條款——是自然本質(zhì)上的處方式,沒有真正的鏈接到實際的性能。論題的處理比如疲勞，耐火性，耐久性和適用性都可以被看作是這個模式。最近的工作是當(dāng)時的報道，集中精力在過去7年在倫敦大學(xué)帝國學(xué)院的發(fā)展，在一個能使用各種水平和由設(shè)計師一直在發(fā)展適合直接使用的綜合方法。 the actual values required are normally related to the vertical loading. Figure 1, which is taken from recent US Guidance (SEI 2010), illustrates the principle. The approach is simple to appreciate, requires minimal structural calculation and, in situations where the original provisions are found to be inadequate, can be made to work by providing more substantial connections and/or additional reinforcement in floor slabs In an interesting recent development, that recognizes the link to the generation of catenary action, US Guidance has restricted the use of tying between the structural members to situations in which it can be demonstrated that the associated connections can carry the required forces whilst undergoing rotations of radiance. Where this is not possible, tying should act through the floors and the roof. However, recent studies (Nethercot et al 2010a。 Robustness。 it has subsequently been refined (Stylianidis 2010). Although the starting point was column removal, the approach contains a number of distinctive features:*c Although dynamic response is allowed for, only static analysis is required (Izzuddin et al 2007).*c The approach may be implemented at structure, substructure, floor grillage or individual beam level, see Figure 2.*c A realistic criterion of failure is employed, corresponding to reaching the ductility limits in connections.*c Quantitative parisons between alternative structural arrangements may readily be made.*c The approach may be implemented using only explicit formulae, thereby permitting simple and rapid calculation.Full details of the method, both in its original form which utilises ADAPTIC to perform the calculations and in its simplified form, may be found in the series of Imperial papers (212).*a) First yielding of the tensile ponents (top bolt row of the support connection)*b) Ultimate capacity of the beam flange at one of the connections (support)*c) Ultimate capacity of the system (failure of the bottom bolt row of the midspan connection)*d) The axial load bees zero (the deflection of the beam where the axial load changes from pressive to tensile)*e) The deflection of the beam where the axial load bees equal to the flange capacity of one of the connections (midspan connection)Figure 3: Nonlinear static response for a single beam 中文翻譯2通過建筑結(jié)構(gòu)設(shè)計以改善建筑物的抗倒性D A Nethercota 土木與環(huán)境工程學(xué)院——倫敦帝國學(xué)院摘 要：如今的“新話題”出現(xiàn)在相對成熟的結(jié)構(gòu)工程領(lǐng)域這是一件罕見的事。這可以通過追蹤的概念,如:容許應(yīng)力，強(qiáng)度極限，極限狀態(tài)和基礎(chǔ)性能。這棟在18層發(fā)生瓦斯爆炸被破壞的22層預(yù)制混凝土公寓建筑導(dǎo)致了新的英國建筑法規(guī)誕生。方法的基本特征將被提交，它被使用在幾個例子的描述和結(jié)果來說明它是如何導(dǎo)致更好的連續(xù)倒塌的機(jī)制的原理和結(jié)構(gòu)工程師的方式能最好的配置結(jié)構(gòu),以提供增強(qiáng)的抗性。在其最頻繁使用的形式替代負(fù)載路徑方法假定一個單柱的瞬時損耗，然后需要這作為結(jié)果的被損傷的構(gòu)件的能力去渡過這個損失已經(jīng)被合適的計算證明（Gudmu
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