發(fā)布時(shí)間：2018-01-04 19:09

  本文關(guān)鍵詞：剪力墻結(jié)構(gòu)抗震措施的有效性校驗(yàn)　出處：《建筑結(jié)構(gòu)》2016年S1期 　論文類型：期刊論文

  更多相關(guān)文章： 剪力墻結(jié)構(gòu) 破壞模式 動(dòng)力分析 抗震措施

【摘要】：通過對嚴(yán)格按照相關(guān)規(guī)范設(shè)計(jì)的算例進(jìn)行精細(xì)有限元?jiǎng)恿r(shí)程分析,校驗(yàn)了中國規(guī)范剪力墻結(jié)構(gòu)能力調(diào)整措施的有效性。結(jié)果表明,現(xiàn)行規(guī)范的設(shè)計(jì)能夠滿足剪力墻結(jié)構(gòu)的整體控制指標(biāo),能夠充分利用連梁耗散地震能量。但是,由于現(xiàn)行規(guī)范中未遵循地震力降低系數(shù)-位移延性系數(shù)關(guān)系的基本理論規(guī)律,未對各設(shè)防烈度區(qū)的結(jié)構(gòu)采取嚴(yán)格程度相同或相近的抗震措施,從而使得設(shè)計(jì)受地震作用控制的7度(0.15g)結(jié)構(gòu)破壞最為嚴(yán)重,抗震性能較弱;也正是由于隨抗震等級從一級到三級,采取的抗震措施逐漸減弱,致使連梁的延性需求呈現(xiàn)逐漸增大的趨勢;規(guī)范規(guī)定底部加強(qiáng)區(qū)高度對一、二級抗震等級顯得不足。規(guī)范的薄弱烈度區(qū)出現(xiàn)在按直覺似乎地震危險(xiǎn)性偏小的7度(0.15g)區(qū)的抗震措施上,這需要引起足夠重視。
[Abstract]:Through the fine finite element power to strictly in accordance with the relevant specification design example of time history analysis, validity check the specification China shear wall structure ability of adjustment measures. The results show that the current design specification can meet the overall control index of shear wall structure, can make full use of seismic energy dissipation beams. However, due to the current specification do not follow the basic theory of the relationship between the seismic force reduction coefficient and displacement ductility coefficient, no structure of the intensity of anti-seismic measures strictly of the same or similar, which makes the design of control by the earthquake of 7 degrees (0.15g) structure of the most serious damage, the seismic performance is weak; it is also because of the earthquake from grade one to three, seismic measures gradually weakened, resulting in the beam ductility demand is gradually increasing trend; specification of reinforcing area in the bottom of a height, level two The magnitude of earthquake resistance seems to be insufficient. The standard weak intensity area appears on the aseismic measures of 7 degree (0.15g) area with intuition and seemingly less earthquake risk, which needs enough attention.

【作者單位】： 重慶大學(xué)土木工程學(xué)院;重慶大學(xué)山地城鎮(zhèn)建設(shè)與新技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金(51478068)
【分類號】：TU398.2;TU352.11
【正文快照】： 2重慶大學(xué)山地城鎮(zhèn)建設(shè)與新技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室,重慶400045)0引言強(qiáng)震中實(shí)現(xiàn)預(yù)期的延性破壞模式是保證RC剪力墻結(jié)構(gòu)在大震或超大震抗震性能的決定性因素之一。在不同重現(xiàn)期的地震作用下結(jié)構(gòu)具有不同的抵抗能力和抗震性能,是目前被大家普遍接受的抗震設(shè)計(jì)思路,兼顧了安全性和，

本文編號：1379706