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興教寺玄焋塔抗震性能評(píng)估與加固*
盧俊龍1,張蔭2,田潔1
摘 要
盧俊龍1,張蔭2,田潔1
(1 西安理工大學(xué)土木建筑工程學(xué)院, 西安 710048; 2 西安建筑科技大學(xué)土木工程學(xué)院,西安 710055)
 
[摘要] 為了研究興教寺玄焋塔的抗震性能,結(jié)合已有磚石古塔抗震性能評(píng)估方法,建立磚石古塔抗震性能綜合評(píng)估模型,參考汶川地震中磚石古塔震害結(jié)果,確定評(píng)估模型中各參數(shù)的取值標(biāo)準(zhǔn)。并由考慮土與結(jié)構(gòu)相互作用時(shí)磚石古塔的地震反應(yīng)分析結(jié)果,對(duì)玄焋塔結(jié)構(gòu)抗震性能進(jìn)行了評(píng)估。評(píng)估結(jié)果表明:塔體底部、塔身沿豎直方向中軸線、塔檐及塔剎處存在薄弱環(huán)節(jié),抗震能力不足,易發(fā)生破壞,可采用錨桿或抗滑樁加固地基、底部壓力灌漿、各層鋼板加箍的抗震加固方案。
[關(guān)鍵詞] 磚石古塔;抗震性能評(píng)估;地震反應(yīng)分析
中圖分類號(hào):TU362, TU746-3     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1002-848X(2012)12-0098-04
 
Strengthen and evaluation of seismic performance of Xuanzang Tower in Xingjiao Temple
Lu Junlong1, Zhang Yin2, Tian Jie1
(1 School of Civil Engineering and Architecture, Xi′an University of Technology, Xi′an 710048, China; 2 School of Civil Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China)
 
Abstract: In order to study the seismic performance and strengthen method of Xuanzhuang Tower of Xingjiao Temple, in light of seismic performance evaluation method to masonry pagodas, the seismic performance integration evaluation model was set up. The seismic disaster of masonry pagodas in Wenchuan earthquake was referenced, the value standard in the evaluation model was confirmed. And according to seismic response analysis results when soil-structure interaction was considered, the seismic performance of Xuanzhuang Tower was evaluated. The related results indicate that the unsubstantial point lies in the bottom, the vertical axial line, the eave and the top of the tower, where the seismic strength is not adequate and is prone to be destroyed. The subsoil strengthened by anchor or anti-slide pile, grouting injected in the bottom, steel plate hooped in each floor can be adopted to strengthen the tower.
Keywords: masonry pagoda; evaluation of seismic performance; seismic response analysis
*國(guó)家自然科學(xué)基金項(xiàng)目(51178385,51078310),科技部科技行動(dòng)計(jì)劃項(xiàng)目([建科][2001]第002號(hào)(2001-2005))。
作者簡(jiǎn)介:盧俊龍,博士,講師,Email:lujunlong@sohu.com
 
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