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不同擋塊形式對(duì)中小跨徑梁橋橫向抗震性能的影響

發(fā)布時(shí)間:2018-06-07 18:03

  本文選題:中小跨徑梁橋 + 板式橡膠支座滑動(dòng) ; 參考:《工程力學(xué)》2016年03期


【摘要】:針對(duì)我國(guó)汶川地震中小跨徑梁橋的典型震害特征,提出一種新型摩擦型擋塊代替常規(guī)混凝土擋塊作為橋梁橫向限位裝置;然后以一座三跨連續(xù)梁橋?yàn)槔?在考慮板式橡膠支座滑動(dòng)、擋塊非線性等力學(xué)因素的基礎(chǔ)上,對(duì)分別采用常規(guī)混凝土擋塊和摩擦型擋塊時(shí)結(jié)構(gòu)的橫向地震反應(yīng)特點(diǎn)進(jìn)行了分析計(jì)算。結(jié)果表明,與常規(guī)混凝土擋塊相比,摩擦型擋塊通過(guò)自身的摩擦滯回耗能可以有效地降低結(jié)構(gòu)的地震響應(yīng),大大改善結(jié)構(gòu)的抗震性能。
[Abstract]:In view of the typical earthquake damage characteristics of small span beam bridge in Wenchuan earthquake in China, a new type of friction block is proposed to replace the conventional concrete block as the lateral limit device of the bridge, and then a three-span continuous beam bridge is taken as an example. On the basis of considering the mechanical factors such as slippage and nonlinearity of the plate rubber bearing, the transverse seismic response characteristics of the structure with conventional concrete block and friction block are analyzed and calculated. The results show that the friction block can reduce the seismic response of the structure effectively and greatly improve the seismic performance of the structure through its own friction hysteretic energy dissipation compared with the conventional concrete block.
【作者單位】: 同濟(jì)大學(xué)土木工程防災(zāi)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】:國(guó)家973項(xiàng)目(2013CB036302) 國(guó)家自然科學(xué)基金項(xiàng)目(51278371) 交通運(yùn)輸部建設(shè)科技項(xiàng)目(2013318800020)
【分類號(hào)】:U442.55

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王東升;郭迅;孫治國(guó);孟慶利;于德海;李曉莉;;汶川大地震公路橋梁震害初步調(diào)查[J];地震工程與工程振動(dòng);2009年03期

2 孫治國(guó);司炳君;王東升;黃照南;于德海;;鋼筋混凝土橋墩震后修復(fù)技術(shù)研究綜述[J];地震工程與工程振動(dòng);2009年05期

3 汪志昊;陳政清;;基于自供電磁流變阻尼器的隔震高架橋半主動(dòng)控制[J];地震工程與工程振動(dòng);2010年01期

4 王東升;孫治國(guó);李曉莉;霍q,

本文編號(hào):1992207


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