Study on Rational Structure of Shed-Tunnel under Seismic Loading

doi:10.3969/j.issn.1674-0696.2013.01.07

Journal of Chongqing Jiaotong University(Natural Science) ›› 2013, Vol. 32 ›› Issue (1): 27-31.DOI: 10.3969/j.issn.1674-0696.2013.01.07

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Study on Rational Structure of Shed-Tunnel under Seismic Loading

Wu Chenyu¹,Gao Feng²

1.China Coal Technology ＆ Engineering Group,Chongqing Design ＆ Research Institute, Second Municipal ＆ Building Institute,Chongqing 400016,China; 2.School of Civil Engineering ＆ Architecture,Chongqing Jiaotong University,Chongqing 400074,China

Received:2012-02-27 Revised:2012-05-02 Online:2013-02-15 Published:2015-03-12

地震区棚洞合理结构形式的研究

伍臣宇¹，高峰²

1.中煤科工集团重庆设计研究院市政与建筑二所，重庆400016;2.重庆交通大学土木建筑学院，重庆400074

作者简介:伍臣宇(1984—)，男，重庆璧山人，硕士，工程师，主要从事桥梁及隧道工程设计方面的研究。E-mail:171273850@qq.com。
基金资助:
国家自然科学基金项目( 50678077) ; 重庆市自然科学基金项目( CSTC, 2008BB6066) ; 重庆市教委科学技术研究项目( KJ090403)

Abstract

Abstract: Taking the tunnel adjacent to the mountain as an object,the principal stress and displacement of different shedtunnel structure were calculated under seismic loading. The seismic response of shed-tunnel was analyzed by the finite element program ANSYS,the Drucker-Prager yield criterion was used as a criterion and the static-dynamic unitized artificial boundary as boundary condition. The results showed that the aseismatic capability of the semi-arch shed-tunnel with oblique column was superior than that with straight column; the aseismatic capability of the arch-style was better than that of the column- style shed-tunnel; the distribution rule of stress was changed as a result of different connection way of cross beam and column-style shed-tunnel; interface of slope and filling layer may slip in the earthquake.

Key words: shed-tunnel, earthquake, finite element, static-dynamic unitized artificial boundary, rational structure

摘要： 以傍山隧道为研究对象,计算了地震动作用下不同结构形式棚洞的主应力和位移。采用大型有限元软件ANSYS 对棚洞进行了地震反应分析,根据D-P 屈服准则,利用静-动力统一人工边界建立边界条件。研究表明: 半拱斜柱式棚洞比半拱直柱式棚洞的抗震性能更优越；拱式棚洞比柱式棚洞抗震性能更好；柱式棚洞柱与横梁的连接形式不同而应力分布规律发生变化；地震时,洞顶回填土与边坡的交界面可能产生滑动。

关键词: 棚洞, 地震, 有限元, 静－动力统一人工边界, 合理结构

CLC Number:

U453.1

Wu Chenyu,Gao Feng. Study on Rational Structure of Shed-Tunnel under Seismic Loading[J]. Journal of Chongqing Jiaotong University(Natural Science), 2013, 32(1): 27-31.

伍臣宇，高峰. 地震区棚洞合理结构形式的研究[J]. 重庆交通大学学报（自然科学版）, 2013, 32(1): 27-31.

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Study on Rational Structure of Shed-Tunnel under Seismic Loading

地震区棚洞合理结构形式的研究

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