基于破壞同步性的高橋墩體系抗震設(shè)計(jì)方法研究
發(fā)布時(shí)間:2018-05-03 03:15
本文選題:高墩 + 墩高比 ; 參考:《自然災(zāi)害學(xué)報(bào)》2014年06期
【摘要】:將高墩橋梁結(jié)構(gòu)中所有的橋墩作為一個(gè)完整體系,通過研究橋墩體系在地震作用下的破壞同步性探索了橋墩體系抗震能力發(fā)揮的情況。根據(jù)破壞標(biāo)準(zhǔn)和破壞同步性系數(shù),研究了基于強(qiáng)度方法設(shè)計(jì)的橋墩體系的破壞同步性,分析了其不足之處。在此基礎(chǔ)上,提出了基于橋墩體系破壞同步性的抗震設(shè)計(jì)方法,并對該方法與基于強(qiáng)度的設(shè)計(jì)方法進(jìn)行了對比分析。工程算例分析結(jié)果表明,該方法對于充分發(fā)揮橋墩體系中所有橋墩的抗震潛能是有效的。
[Abstract]:All the piers in the bridge structure with high piers are regarded as a complete system. The seismic capacity of the pier system is studied by studying the synchronism of the damage of the pier system under the earthquake. According to failure criterion and failure synchronicity coefficient, the failure synchronism of pier system designed by strength method is studied, and its deficiency is analyzed. On this basis, a seismic design method based on the synchronous failure of pier system is proposed, and the comparison between this method and the design method based on strength is carried out. The results of engineering examples show that the method is effective to give full play to the seismic potential of all piers in the system of bridge piers.
【作者單位】: 中國地震局工程力學(xué)研究所 中國地震局地震工程與工程振動(dòng)重點(diǎn)實(shí)驗(yàn)室;
【基金】:“十二五”國家科技支撐計(jì)劃項(xiàng)目(2012BAK15B02) 國家自然科學(xué)基金青年科學(xué)基金項(xiàng)目(51108432)
【分類號(hào)】:U442.55
【參考文獻(xiàn)】
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