發(fā)布時間：2018-05-25 15:15

  本文選題：廣府木祠堂 + 箍頭榫�。� 參考：《華南理工大學學報(自然科學版)》2016年10期

【摘要】：以嶺南地區(qū)具有代表性的廣府木祠堂建筑為研究對象,分別進行了1榀菠蘿格木構架縮尺模型的豎向加載與1榀木構架縮尺模型的水平低周反復加載試驗,研究廣府木祠堂箍頭榫節(jié)點的力學性能.通過木構架的豎向荷載試驗,獲取箍頭榫節(jié)點在豎向荷載作用下的破壞形式、受力特點和剛度特性;從木構架的水平低周反復荷載試驗中,得到箍頭榫節(jié)點在水平荷載作用下的破壞形式、滯回曲線、骨架曲線、延性、剛度退化及能量耗散能力等性能.試驗結果表明,木構架在梁跨中豎向荷載作用下為梁底部木纖維突然拉斷而破壞;而木構架在水平低周反復荷載作用下為節(jié)點梁端外側被擠壓劈裂破壞,箍頭榫節(jié)點呈現(xiàn)出典型的半剛性,其滯回曲線較為飽滿,割線剛度曲線呈下凹型且趨于收斂,等效粘滯阻尼系數(shù)較大,試件表現(xiàn)出較好的抗震性能.
[Abstract]:Taking the representative Guangfu ancestral temple building in Lingnan area as the research object, the vertical loading of one pineapple lattice wood frame scale model and the horizontal low cycle repeated loading test of one wood frame scale model were carried out. The mechanical properties of tenon joint of guangfu wood ancestral temple were studied. Through the vertical load test of wood frame, the failure form, stress characteristics and stiffness characteristics of the joint with tenon of the hoop head under vertical load are obtained, and from the horizontal low cycle repeated load test of the wood frame, the failure mode, the stress characteristic and the stiffness characteristic of the joint are obtained. The failure form, hysteretic curve, skeleton curve, ductility, stiffness degradation and energy dissipation ability of the joint under horizontal load are obtained. The test results show that the wood frame under the vertical load at the middle span of the beam is broken suddenly by the wood fiber at the bottom of the beam, while the wood frame under the horizontal low cycle repeated load is crushed and split on the outside of the end of the node beam. The hysteretic curve of the joint is full, the curve of Secant stiffness is concave and convergent, the equivalent viscous damping coefficient is larger, and the specimen shows better seismic performance.
【作者單位】： 華南理工大學土木與交通學院;華南理工大學亞熱帶建筑科學國家重點實驗室;華南理工大學建筑設計研究院;華南理工大學建筑學院;
【基金】：國家自然科學基金青年基金資助項目(51308218) 華南理工大學亞熱帶建筑科學國家重點實驗室自主研究課題(2015ZC18);華南理工大學中央高校基本科研業(yè)務費專項資金資助項目(2015ZM040) 貴州省科技合作計劃項目(黔科合LH(字)[2015]7213)~~
【分類號】：TU366.2

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本文編號：1933673