高层古建筑木结构——应县木塔现状结构评价
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摘要
位于山西省应县、建于公元 10 5 6年、高度为 65 86m的应县木塔 ,由于材料受化学、物理、生物等的侵蚀 ,结构受地震、大风、竖向载荷及人为损坏等 ,面临修缮与加固。对其结构的详细评价成为修缮加固的基础。(1)根据实测结果分析了木塔构件及整体变形 ,对残损严重的二层平坐层变形进行了详细讨论。 (2 )以变形、残损和构件承载能力为依据对各类构件进行了可靠性等级划分 ,分析了其分布特征及构件和整体的残损状态。 (3 )根据应县木塔 1 10模型拟动力试验结果 ,得到结构非线性恢复力曲线 ,利用能量等效原则分析了木塔弹塑性地震反应 ,划分并标定了木结构地震损坏等级和参数 ,评价了木塔在不同地震烈度下的损伤程度
The 67.31-m high"YingXian Wooden Tower", located to the northwest of Shanxi, China, was built in 1056 A.D. The damage caused by violent earthquakes and bombardment, together with weakened material and some components (wooden columns)continuonslytiltiry,have caused concern about its safety. The structural reliability appraisal lays the foundation for repair and reinforument.With actual measurement, the horizontal and vertical deformations of the tower are analysed,and the seriously damaged second floor is discussed in detail.The damages,bearing capacities and reliability levels of the tower members are evaliated,and the damage distribution characteritics discussed. Based on a 1/10 scale dynamicmodel test,a nonlinear calculating model is obtained.Enploying the conservation of enerqy priciple,the lasfo-plastic seismic response of the tower is analyzed,seismic damage levels and parametes are classified and calibrated,and the degrees of damages of the tower under vanious seismic intenrsities are evaluated.
The 67.31-m high"YingXian Wooden Tower", located to the northwest of Shanxi, China, was built in 1056 A.D. The damage caused by violent earthquakes and bombardment, together with weakened material and some components (wooden columns)continuonslytiltiry,have caused concern about its safety. The structural reliability appraisal lays the foundation for repair and reinforument.With actual measurement, the horizontal and vertical deformations of the tower are analysed,and the seriously damaged second floor is discussed in detail.The damages,bearing capacities and reliability levels of the tower members are evaliated,and the damage distribution characteritics discussed. Based on a 1/10 scale dynamicmodel test,a nonlinear calculating model is obtained.Enploying the conservation of enerqy priciple,the lasfo-plastic seismic response of the tower is analyzed,seismic damage levels and parametes are classified and calibrated,and the degrees of damages of the tower under vanious seismic intenrsities are evaluated.
引文
[1] 陈明达.应县木塔[M].北京:文物出版社,1966
[2] 《古建筑木结构维护与加固规范》(GB50165-92)
[3] 李世温,王晋生,魏剑伟,张文芳.应县木塔抗震性能研究[R]1996
[4] 李世温,李铁英,魏剑伟.应县木塔可靠性分析[R]2002
[5] 太原工学院,山西省文物局.应县木塔木材取样试验报告[R]1979
[6] 李世温,陈正廷.应县木塔的荷载研究[R]2000
[7] 陈亚勇等.MATLAB信号处理详解.北京:人民邮电出版社,2001
[2] 《古建筑木结构维护与加固规范》(GB50165-92)
[3] 李世温,王晋生,魏剑伟,张文芳.应县木塔抗震性能研究[R]1996
[4] 李世温,李铁英,魏剑伟.应县木塔可靠性分析[R]2002
[5] 太原工学院,山西省文物局.应县木塔木材取样试验报告[R]1979
[6] 李世温,陈正廷.应县木塔的荷载研究[R]2000
[7] 陈亚勇等.MATLAB信号处理详解.北京:人民邮电出版社,2001
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