广府古建筑木结构箍头榫节点弯矩-转角关系理论分析
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摘要
广府祠堂木结构节点多采用箍头榫形式,其受力性能与已有的直榫、燕尾榫等均存在差异,为研究箍头榫节点的受力性能,开展了箍头榫节点的受力机理分析,推导了弯矩-转角理论计算公式,并通过试验结果验证了理论计算公式的正确性;基于理论计算公式,对影响箍头榫节点弯矩-转角关系的各个因素进行分析.分析结果表明,在所计算的参数范围内,节点初始转动刚度和极限弯矩随着柱直径、榫宽度、摩擦系数、榫头侧面和卯口间挤压宽度的增大而增大,节点极限弯矩随着梁高增大而增大,而节点初始转动刚度受梁高的影响不大.所得结果可为广府地区古建筑木结构的受力分析及抗震性能研究提供理论依据.
Hoop head tenon-mortise joint is extensively adopted in an ancient timber structure in Guangfu,which is different from straight tenon-mortise joint or dovetail tenon-mortise joint in terms of mechanical performance. To analyze the mechanical properties of hoop head tenon-mortise joint,mechanism analysis was carried out and the moment-rotation calculation formulae were also derived, while the formulae were verified by experimental results. Using the formulae,the factors affecting the relationship of moment-rotation of hoop head tenon-mortise joint were investigated. The results indicate that within the range of parameters, the initial rotational stiffness and ultimate bending moment increase with the increase of the column diameter, mortise width, friction coefficient and unilateral compression width between tenon and mortise,while the ultimate bending moment increases with the increase of beam height, but the initial rotational stiffness is only slightly affected by the beam height. The results of this study can serve as a theoretical foundation for mechanical analysis as well as for seismic research of ancient timber structures in Guangfu.
Hoop head tenon-mortise joint is extensively adopted in an ancient timber structure in Guangfu,which is different from straight tenon-mortise joint or dovetail tenon-mortise joint in terms of mechanical performance. To analyze the mechanical properties of hoop head tenon-mortise joint,mechanism analysis was carried out and the moment-rotation calculation formulae were also derived, while the formulae were verified by experimental results. Using the formulae,the factors affecting the relationship of moment-rotation of hoop head tenon-mortise joint were investigated. The results indicate that within the range of parameters, the initial rotational stiffness and ultimate bending moment increase with the increase of the column diameter, mortise width, friction coefficient and unilateral compression width between tenon and mortise,while the ultimate bending moment increases with the increase of beam height, but the initial rotational stiffness is only slightly affected by the beam height. The results of this study can serve as a theoretical foundation for mechanical analysis as well as for seismic research of ancient timber structures in Guangfu.
引文
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[15]陈春超,邱洪兴,包轶楠.瓜柱柱脚直榫节点受弯力学模型研究[J].湖南大学学报(自然科学版),2015,42(3):50—56.CHEN C C,QIU H X,BAO Y N. Study on the flexural mechanical model of straight mortise-tenon joints in the base of melon column[J]. Journal of Hunan University(Natural Sciences),2015,42(3):50—56.(In Chinese)
[16]CHEN C C,QIU H X,LU Y. Flexural behaviour of timber dovetail mortise-tenon joints[J]. Construction and Building Materials,2016,112:366—377.
[17]陈庆军,邱凯祥,汤序霖,等.广府木祠堂箍头榫节点力学性能试验研究[J].华南理工大学学报(自然科学版),2016,44(10):96—103.CHEN Q J,QIU K X,TANG X L,et al. Experimental study on mechanics performance of hoop head tenon joint in ancestral halls in Canton[J]. Journal of South China University of Technology(Natural Science Edition),2016,44(10):96—103.(In Chinese)
[18]肖,杨扬.广府祠堂建筑尺度模型研究[J].华中建筑,2012,30(6):147—151.XIAO M,YANG Y. Study on the scale mode of ancestral halls in Canton[J]. Huazhong Architecture,2012,30(6):147—151.(In Chinese)
[19]CHANG W S,HSU M F. Rotational performance of traditional Nuki joints with gap II:the behavior of butted Nuki joint and its comparison with continuous Nuki joint[J]. Journal of Wood Science,2007,53(5):401—407.
[20] YEO S Y,KOMATSU K,HSU M F. Mechanical model for complex brackets system of the Taiwanese traditional Dieh-Dou timber structures[J]. Advances in Structural Engineering,2016,19(1):65—85.
[21]邱凯祥.广府古建筑木结构箍头榫节点抗震性能研究[D].广州:华南理工大学土木与交通学院,2017:11—44.QIU K X.Research on seismic behavior of hoop head tenon joint of ancient timber structures in Canton[D]. Guangzhou:School of Civil Engineering and Transportation,South China University of Technology,2017:11—44.(In Chinese)
[22] INAYAMA M. Design of traditional otoshikomi shear wall[M].Tokyo:Xknoledge,2003:274—279.
[23]MCKENZIE W M,KARPOVIC H. Frictional behaviour of wood[J].Wood Science and Technology,1968,2(2):138—152.
[24]MURASE Y.Friction of wood sliding on various materials[J]. Journal of the Faculty of Agriculture Kyushu University,1984,28(4):147—160.
[2]周乾,闫维明,杨小森,等.汶川地震导致的古建筑震害[J].文物保护与考古科学,2010,22(1):37—45.ZHOU Q,YAN W M,YANG X S,et al. Damage of ancient Chineses architecture caused by the Wenchuan Earthquake[J].Sciences of Conservation and Archaeology,2010,22(1):37—45.(In Chinese)
[3]淳庆,潘建伍,韩宜丹.江南地区传统木构建筑半榫节点受力性能研究[J].湖南大学学报(自然科学版),2016,43(1):124—131.CHUN Q,PAN J W,HAN Y D. Research on mechanical properties of ban mortise-tenon joint of the traditional timber buildings in the South Yangtze River Regions[J].Journal of Hunan University(Natural Sciences),2016,43(1):124—131.(In Chinese)
[4]高大峰,赵鸿铁,薛建阳.木结构古建筑中斗与榫卯节点的抗震性能试验研究[J].自然灾害学报,2008,17(2):58—64.GAO D F,ZHAO H T,XUE J Y. Aseismic characteristic of bucket arch and mortise-tenon joint of ancient Chinese timber buildings:experimental research[J]. Journal of Natural Disasters,2008,17(2):58—64.(In Chinese)
[5]赵鸿铁,张海彦,薛建阳,等.古建筑木结构燕尾榫节点刚度分析[J].西安建筑科技大学学报(自然科学版),2009,41(4):450—454.ZHAO H T,ZHANG H Y,XUE J Y,et al. The stiffness analysis on the characteristic of mortise-tenon joint in historical timber buildings[J]. Journal of Xian University of Architecture and Technology(Natural Science Edition),2009,41(4):450—454.(In Chinese)
[6] KISHI N,CHEN W F. Moment-rotation relations of semi-rigid connections with angles[J]. Structure Engineering,ASCE,1990,116(7):1813—1834.
[7]杨艳华,王俊鑫,徐彬.古木建筑榫卯连接M-θ相关曲线模型研究[J].昆明理工大学学报(理工版),2009,34(1):72—76.YANG Y H,WANG J X,XU B. Research ofinteraction curves model of mortise-tenon joint in historic timber building[J]. Journal of Kunming University of Science and Technology(Science and Technology),2009,34(1):72—76.(In Chinese)
[8]淳庆,乐志,潘建伍.中国南方传统木构建筑典型榫卯节点抗震性能试验研究[J].中国科学(技术科学),2011,41(9):1153—1160.CHUN Q,LE Z,PAN J W. Experimental study on seismic characteristics of typical mortise-tenon joints of Chinese traditional timber frame buildings[J]. Scientia Sinica(Technologica),2011,41(9):1153—1160.(In Chinese)
[9]姚侃,赵鸿铁,葛鸿鹏.古建木结构榫卯连接特性的试验研究[J].工程力学,2006,23(10):168—173.YAO K,ZHAO H T,GE H P. Experimental studies on the characteristic of mortise-tenon joint in historic timber buildings[J]. Engineering Mechanics,2006,23(10):168—173.(In Chinese)
[10]徐明刚.中国古建筑木结构榫卯节点抗震性能研究[D].南京:东南大学土木工程学院,2011:80—89.XU M G.Study of aseismic behavior of mortise-tenon joints in Chinese ancient timber buildings[D]. Nanjing:College of Civil Engineering,Southeast University,2011:80—89.(In Chinese)
[11]谢启芳,杜彬,张风亮,等.古建筑木结构燕尾榫节点弯矩-转角关系理论分析[J].工程力学,2014,31(12):140—146.XIE Q F,DU B,ZHANG F L,et al. Theoretical analysis on moment-rotation relationship of dovetail joints for Chinese ancient timber structure buildings[J]. Engineering Mechanics,2014,31(12):140—146.(In Chinese)
[12]谢启芳,杜彬,钱春宇,等.古建筑木结构燕尾榫节点弯矩-转角模型研究[J].工程力学,2016,33(8):39—44.XIE Q F,DU B,QIAN C Y,et al. Study on the moment-rotation model of the devotail mortise-tenon joint of ancient timber buildings[J]. Engineering Mechanics,2016,33(8):39—44.(In Chinese)
[13]谢启芳,王龙,郑培君,等.传统木结构单向直榫节点转动弯矩-转角关系理论分析[J].湖南大学学报(自然科学版),2017,44(7):111—117.XIE Q F,WANG L,ZHENG P J,et al. Theoretical analysis on moment-rotation relationship of straight mortise-tenon joints for Chinese traditional wooden buildings[J]. Journal of Hunan University(Natural Sciences),2017,44(7):111—117.(In Chinese)
[14]潘毅,王超,唐丽娜,等.古建筑木结构直榫节点力学模型的研究[J].工程力学,2015,32(2):82—89.PAN Y,WANG C,TANG L N,et al. Study on mechanical model of straight-tenon joints in ancient timber structures[J]. Engineering Mechanics,2015,32(2):82—89.(In Chinese)
[15]陈春超,邱洪兴,包轶楠.瓜柱柱脚直榫节点受弯力学模型研究[J].湖南大学学报(自然科学版),2015,42(3):50—56.CHEN C C,QIU H X,BAO Y N. Study on the flexural mechanical model of straight mortise-tenon joints in the base of melon column[J]. Journal of Hunan University(Natural Sciences),2015,42(3):50—56.(In Chinese)
[16]CHEN C C,QIU H X,LU Y. Flexural behaviour of timber dovetail mortise-tenon joints[J]. Construction and Building Materials,2016,112:366—377.
[17]陈庆军,邱凯祥,汤序霖,等.广府木祠堂箍头榫节点力学性能试验研究[J].华南理工大学学报(自然科学版),2016,44(10):96—103.CHEN Q J,QIU K X,TANG X L,et al. Experimental study on mechanics performance of hoop head tenon joint in ancestral halls in Canton[J]. Journal of South China University of Technology(Natural Science Edition),2016,44(10):96—103.(In Chinese)
[18]肖,杨扬.广府祠堂建筑尺度模型研究[J].华中建筑,2012,30(6):147—151.XIAO M,YANG Y. Study on the scale mode of ancestral halls in Canton[J]. Huazhong Architecture,2012,30(6):147—151.(In Chinese)
[19]CHANG W S,HSU M F. Rotational performance of traditional Nuki joints with gap II:the behavior of butted Nuki joint and its comparison with continuous Nuki joint[J]. Journal of Wood Science,2007,53(5):401—407.
[20] YEO S Y,KOMATSU K,HSU M F. Mechanical model for complex brackets system of the Taiwanese traditional Dieh-Dou timber structures[J]. Advances in Structural Engineering,2016,19(1):65—85.
[21]邱凯祥.广府古建筑木结构箍头榫节点抗震性能研究[D].广州:华南理工大学土木与交通学院,2017:11—44.QIU K X.Research on seismic behavior of hoop head tenon joint of ancient timber structures in Canton[D]. Guangzhou:School of Civil Engineering and Transportation,South China University of Technology,2017:11—44.(In Chinese)
[22] INAYAMA M. Design of traditional otoshikomi shear wall[M].Tokyo:Xknoledge,2003:274—279.
[23]MCKENZIE W M,KARPOVIC H. Frictional behaviour of wood[J].Wood Science and Technology,1968,2(2):138—152.
[24]MURASE Y.Friction of wood sliding on various materials[J]. Journal of the Faculty of Agriculture Kyushu University,1984,28(4):147—160.