单面钢丝网水泥砂浆加固承重夯土墙体抗震试验研究
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摘要
针对我国村镇大量在役生土结构民居抗震性能低的问题,提出单面钢丝网水泥砂浆加固夯土墙体的方法,研究用该法加固的生土墙体的受力性能及抗震性能.设计了5片夯土墙试件进行拟静力试验,在恒定竖向荷载下,对试件施加低周反复水平荷载,研究墙体在地震水平荷载作用下的破坏过程和破坏形态,分析夯土墙体的滞回曲线和骨架曲线特征,得到加固后和未加固夯土墙体的极限荷载和极限位移,验证了采用钢丝网水泥砂浆面层加固夯土墙体的效果,分析了加固后墙体在地震水平荷载作用下的破坏机理.研究表明:采用钢丝网水泥砂浆面层加固可明显提高夯土墙体的承载能力和变形能力,可有效避免夯土墙体在地震作用下的倒塌破坏.
This paper proposed an easy construction method that strengthening rammed-earth wall with single side Ferro-cement surface layer and studied the reinforced the mechanical behavior and seismic behavior of the reinforced raw soil walls by this method. Five rammed-earth wall specimens were designed. Vertical loading and low cycle reversed horizontal loading are carried out on specimen aimed to study the failure process, failure mode, failure mechanism and hysteretic curve and skeleton curve feature. The ultimate load and ultimate displacement of the reinforced rammed-earth wall and unreinforced rammed-earth wall are also obtained. The reinforcement effect is also verified. The results show that reinforcement method proposed in this paper have remarkable results on the load-carrying and deformation capacity of the rammed-earth wall, and effectively avoided the rammed-earth wall's damages and collapse.
This paper proposed an easy construction method that strengthening rammed-earth wall with single side Ferro-cement surface layer and studied the reinforced the mechanical behavior and seismic behavior of the reinforced raw soil walls by this method. Five rammed-earth wall specimens were designed. Vertical loading and low cycle reversed horizontal loading are carried out on specimen aimed to study the failure process, failure mode, failure mechanism and hysteretic curve and skeleton curve feature. The ultimate load and ultimate displacement of the reinforced rammed-earth wall and unreinforced rammed-earth wall are also obtained. The reinforcement effect is also verified. The results show that reinforcement method proposed in this paper have remarkable results on the load-carrying and deformation capacity of the rammed-earth wall, and effectively avoided the rammed-earth wall's damages and collapse.
引文
[1]周铁钢,段文强,穆均,等.全国生土农房现状调查与抗震性能统计分析[J].西安建筑科技大学学报,2013,45(4):487-492.ZHOU Tiegang,Duan Wenqiang,Mu Jun,et al.Statistical analysis and survey on the aseismatic performance of the raw-soil Building Status in China’s rural areas[J].J.Xi′an Univ.of Arch.?Tech.(Natural Science Edition),2013,45(4):487-492.
[2]尚建丽,刘加平,赵西平.低能耗夯实粗粒土建筑特性的试验研究[J].西安建筑科技大学学报:自然科学版,2003,35(4):325-328.SHANG Jianli,LIU Jiaping,ZHAO Xiping.Test study on construction performance of energy-saving material[J].J.Xi′an Univ.of Arch.?Tech.:Natural Science Edition,2003,35(4):325-328.
[3]王毅红,李丽,王冲锋,等.村镇既有生土结构房屋抗震性能现状分析[J].土木工程学报,2010,43(S):462-467.WANG Yihong,LI Li,WANG Chongfeng,et al.Research and analysis on aseismic behavior of existing country raw-soil structure[J].China civil engineering journal,2010,43(S):462-467.
[4]常卫华,王建卫,徐福泉.村镇生土住宅结构现状研究[J].建筑结构,2010,40(S):375-378.CHANG Weihua,WANG Jianwei,XU Fuquan.Study on existing situation of adobe and rammed earth building construction in town and village[J].Building Structure,2010,40(S):375-378.
[5]王毅红,苏东君,刘伯权,等.生土结构房屋的承重夯土墙体抗震性能试验研究[J].西安建筑科技大学学报:自然科学版,2007,39(4):451-456.WANG Yihong,SU Dongjun,LIU Boquan,et al.Study on the seismic behavior of raw soil structure with rammed earth wall[J].J.Xi′an Univ.of Arch.?Tech.:Natural Science Edition,2007,39(4):451-456.
[6]卜永红,王毅红,韩岗,李丽.内置绳网承重夯土墙体抗震性能试验研究[J].西安建筑科技大学学报:自然科学版,2013,45(1):38-42.BU Yonghong,WANG Yihong,HANG Gang,et al.Study on seismic behavior of the rammed earth walls with built-in rope nets[J].J.Xi′an Univ.of Arch.?Tech.:Natural Science Edition,2013,45(1):38-42.
[7]朱伯龙,吴明舜,蒋志贤.砖墙用钢筋网水泥砂浆面层加固的抗震能力研究[J].地震工程与工程振动,1984,4(1):70-81.ZHU Bolong,WU Mingshun,JIANG Zhiyi.A Study on aseismic capacity of brick wall strengthened with cement mortar reinforced with steel mesh[J].Earthquake Engineering and Engineering Vibration,1984,4(1):70-81.
[8]黄忠邦.国外关于钢筋网水泥砂浆抗震加固的研究[J].建筑结构,1994,24(5):44-47.HUANG Zhongbang.A Study on Strengthening Rammed-earth Wall with Ferro-cement Surface Layer from aboard[J].Building Structure,1994,24(5):44-47.
[9]王天贤.加固在役砖墙KP1砖墙的抗震性能试验研究[J].重庆建筑大学学报,2003,25(3):51-54.WANG Tianxian.Investigation on Seismic Behavior of KP1 Masonry Wall Strenthened[J].Journal of Chongqing Jianzhu University,2003,25(3):51-54.
[10]王建卫.既有村镇生土结构房屋承重土坯墙体加固试验研究[D].西安:长安大学,2011.WANG Jianwei.Experimental Study on Load-Bearing Adobe Wall Reinforcement of Existing Country Raw-soil Structure[D].Xi′an:Univ.of Chang′an,2011.
[2]尚建丽,刘加平,赵西平.低能耗夯实粗粒土建筑特性的试验研究[J].西安建筑科技大学学报:自然科学版,2003,35(4):325-328.SHANG Jianli,LIU Jiaping,ZHAO Xiping.Test study on construction performance of energy-saving material[J].J.Xi′an Univ.of Arch.?Tech.:Natural Science Edition,2003,35(4):325-328.
[3]王毅红,李丽,王冲锋,等.村镇既有生土结构房屋抗震性能现状分析[J].土木工程学报,2010,43(S):462-467.WANG Yihong,LI Li,WANG Chongfeng,et al.Research and analysis on aseismic behavior of existing country raw-soil structure[J].China civil engineering journal,2010,43(S):462-467.
[4]常卫华,王建卫,徐福泉.村镇生土住宅结构现状研究[J].建筑结构,2010,40(S):375-378.CHANG Weihua,WANG Jianwei,XU Fuquan.Study on existing situation of adobe and rammed earth building construction in town and village[J].Building Structure,2010,40(S):375-378.
[5]王毅红,苏东君,刘伯权,等.生土结构房屋的承重夯土墙体抗震性能试验研究[J].西安建筑科技大学学报:自然科学版,2007,39(4):451-456.WANG Yihong,SU Dongjun,LIU Boquan,et al.Study on the seismic behavior of raw soil structure with rammed earth wall[J].J.Xi′an Univ.of Arch.?Tech.:Natural Science Edition,2007,39(4):451-456.
[6]卜永红,王毅红,韩岗,李丽.内置绳网承重夯土墙体抗震性能试验研究[J].西安建筑科技大学学报:自然科学版,2013,45(1):38-42.BU Yonghong,WANG Yihong,HANG Gang,et al.Study on seismic behavior of the rammed earth walls with built-in rope nets[J].J.Xi′an Univ.of Arch.?Tech.:Natural Science Edition,2013,45(1):38-42.
[7]朱伯龙,吴明舜,蒋志贤.砖墙用钢筋网水泥砂浆面层加固的抗震能力研究[J].地震工程与工程振动,1984,4(1):70-81.ZHU Bolong,WU Mingshun,JIANG Zhiyi.A Study on aseismic capacity of brick wall strengthened with cement mortar reinforced with steel mesh[J].Earthquake Engineering and Engineering Vibration,1984,4(1):70-81.
[8]黄忠邦.国外关于钢筋网水泥砂浆抗震加固的研究[J].建筑结构,1994,24(5):44-47.HUANG Zhongbang.A Study on Strengthening Rammed-earth Wall with Ferro-cement Surface Layer from aboard[J].Building Structure,1994,24(5):44-47.
[9]王天贤.加固在役砖墙KP1砖墙的抗震性能试验研究[J].重庆建筑大学学报,2003,25(3):51-54.WANG Tianxian.Investigation on Seismic Behavior of KP1 Masonry Wall Strenthened[J].Journal of Chongqing Jianzhu University,2003,25(3):51-54.
[10]王建卫.既有村镇生土结构房屋承重土坯墙体加固试验研究[D].西安:长安大学,2011.WANG Jianwei.Experimental Study on Load-Bearing Adobe Wall Reinforcement of Existing Country Raw-soil Structure[D].Xi′an:Univ.of Chang′an,2011.
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