【摘要】：土坯建筑因其簡便性和經(jīng)濟性,而在世界廣泛存在,許多專家學(xué)者對其展開了研究。本文主要針對木框架土坯組合墻體的抗震性能進行研究分析,為村鎮(zhèn)地區(qū)土坯房屋抗震加固與設(shè)計建造提供一些參考。首先對素土坯墻體與木框架土坯組合墻體進行擬靜力試驗,觀察其破壞過程,總結(jié)墻體破壞模式;并通過試驗結(jié)果得到承載力、延性系數(shù)、滯回曲線、骨架線、耗能曲線及剛度退化曲線等數(shù)據(jù),研究分析試件的抗震性能。隨后對各試驗墻體進行有限元模擬,并對影響土坯墻體擬靜力試驗結(jié)果的因素行數(shù)值模擬計算分析,最后總結(jié)出組合墻體初始剛度及抗側(cè)承載力計算公式。通過上述方法研究表明:(1)土坯墻體主要是受剪切破壞為主,木框架土坯組合墻體破壞分為:整體彈性工作階段、土坯墻體受力階段、協(xié)同工作階段、木框架破壞四個階段。組合墻體在承載力、變形能力及耗能等方面均優(yōu)于素土坯墻體。(2)軸壓比對土坯墻體破壞模式和抗側(cè)承載力影響很大,不同軸壓比下墻體出現(xiàn)不同破壞模式,隨著墻體高寬比增大,軸壓比的影響逐漸減弱。加載方式對土坯墻體擬靜力試驗結(jié)果的影響也不容忽視,L型加載梁的土坯墻體擬靜力試驗結(jié)果比較符合實際工程土坯墻體破壞模式。(3)墻片高寬比與木框架截面尺寸都是影響其抗側(cè)能力的重要因素。提出木框架土坯組合墻體初始剛度與抗側(cè)承載力簡化計算公式,計算結(jié)果與有限元模擬結(jié)果接近。(4)將木框架設(shè)置在工字型墻體縱橫墻連接處內(nèi)部,會破壞墻體原有整體性,導(dǎo)致剛度退化加劇,承載力提升不明顯。應(yīng)將木框架設(shè)置在縱橫墻連接處外側(cè),并使用鋼絲網(wǎng)水泥砂漿加強連接與提高整體性。
[Abstract]:Adobe architecture is widely existed in the world because of its simplicity and economy. Many experts and scholars have studied it. In this paper, the seismic behavior of the composite wall of wood frame adobe is studied and analyzed, which provides some references for seismic reinforcement and design and construction of adobe buildings in villages and towns. Firstly, quasi-static test was carried out on the composite wall of plain adobe and wood frame adobe, the failure process was observed, and the failure mode of wall was summarized. The data of bearing capacity, ductility coefficient, hysteretic curve, skeleton line, energy dissipation curve and stiffness degradation curve are obtained. Then the finite element simulation of each test wall is carried out, and the factors influencing the pseudostatic test results of the adobe wall are numerically simulated and analyzed. Finally, the formulas for calculating the initial stiffness and lateral bearing capacity of the composite wall are summarized. The results show that: (1) the failure of the adobe wall is mainly caused by shear failure, and the failure of the composite wall is divided into three stages: the whole elastic working stage, the bearing stage of the adobe wall, and the cooperative working stage. The wooden frame is destroyed in four stages. The combined wall is superior to the plain adobe wall in bearing capacity, deformation ability and energy dissipation. (2) the axial compression ratio has a great influence on the failure mode and lateral bearing capacity of the adobe wall, and different failure modes appear in the wall under different axial compression ratio. As the aspect ratio of wall increases, the influence of axial compression ratio weakens gradually. The effect of loading mode on quasi-static test results of adobe wall can not be ignored. The pseudo-static test results of the adobe wall of L type loaded beam are in good agreement with the failure mode of the actual engineering adobe wall. (3) both the aspect ratio of the wall and the section size of the wood frame are the important factors affecting the lateral resistance of the wall. A simplified formula for calculating the initial stiffness and lateral bearing capacity of wood frame adobe composite wall is presented. The calculated results are close to the finite element simulation results. (4) the wood frame is located inside the junction of the I-shaped wall longitudinal and transverse walls. The original integrity of the wall will be destroyed, resulting in the deterioration of stiffness, and the increase of bearing capacity is not obvious. The wooden frame should be arranged on the outside of the joint of vertical and horizontal wall, and the wire mesh cement mortar should be used to strengthen the connection and improve the integrity.
【學(xué)位授予單位】：新疆大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU352.11;TU398.9

【參考文獻】

相關(guān)期刊論文 前10條

1 張斯;徐禮華;楊冬民;盛勇;;纖維布加固磚砌體墻平面內(nèi)受力性能有限元模型[J];工程力學(xué);2015年12期

2 高潤東;蔣利學(xué);王春江;朱震宇;許清風(fēng);;基于等效斜壓桿理論的RC框架填充墻承載力計算方法研究[J];結(jié)構(gòu)工程師;2015年05期

3 張又超;王毅紅;張項英;權(quán)登州;;單面鋼絲網(wǎng)水泥砂漿加固承重夯土墻體抗震試驗研究[J];西安建筑科技大學(xué)學(xué)報(自然科學(xué)版);2015年02期

4 胡荻;阿肯江·托呼提;黃斌;;鋼絲網(wǎng)水泥砂漿加固土坯砌體抗震性能研究[J];工程抗震與加固改造;2014年06期

5 黃斌;阿肯江·托呼提;胡荻;叢欣峰;木合塔扎爾白克·蘇力唐;;基于均質(zhì)化方法的鋼絲網(wǎng)砂漿加固土坯墻體抗震性能研究[J];工程抗震與加固改造;2014年05期

6 周鐵鋼;韓睿斌;穆鈞;;西部地區(qū)農(nóng)村危房現(xiàn)狀調(diào)查與抗震性能統(tǒng)計分析[J];自然災(zāi)害學(xué)報;2013年06期

7 郝際平;劉斌;邵大余;鐘煒輝;李月晨;申薇;;生土填充墻鋼框架結(jié)構(gòu)抗剪性能分析[J];西安建筑科技大學(xué)學(xué)報(自然科學(xué)版);2013年05期

8 周智彬;潘志宏;;框架填充墻的等效彈簧斜撐模型[J];工程抗震與加固改造;2013年02期

9 阿肯江·托呼提;沙吾列提·拜開依;曹耿;;土坯砌體單軸受壓本構(gòu)模型研究[J];工程力學(xué);2012年12期

10 常衛(wèi)華;王建衛(wèi);徐福泉;王新杰;;臥砌土坯墻體加固抗震性能試驗研究[J];建筑結(jié)構(gòu);2012年09期

相關(guān)碩士學(xué)位論文 前7條

1 黃斌;基于均質(zhì)化方法的加固土坯房屋抗震性能研究[D];新疆大學(xué);2015年

2 木合塔扎爾白克·蘇力唐;鋼絲網(wǎng)水泥砂漿加固工字型土坯墻體的抗震試驗研究[D];新疆大學(xué);2015年

3 陳娟;嵌肋加固古建筑木梁力學(xué)效果的有限元分析[D];西南石油大學(xué);2012年

4 卡米力·外力;木柱、梁—土坯組合墻體抗側(cè)承載力試驗研究[D];新疆大學(xué);2012年

5 陳漢清;木柱梁—土坯組合墻體數(shù)值模擬及抗震性能分析[D];新疆大學(xué);2009年

6 劉穎;土坯砌體等效體積單元和土坯墻片的分析[D];昆明理工大學(xué);2008年

7 黃金勝;云南傳統(tǒng)民居建筑抗震加固方法的研究[D];昆明理工大學(xué);2007年

，

本文編號：2313992