粘钢加固梁柱中节点抗震性能试验研究
|
摘要
节点是两种构件连接的公共部分及相邻区域。在钢筋混凝土框架结构中，节点是关键的部位之一，一旦发生震害影响较大。因而，研究节点抗震性能和及时对节点补强加固是很有必要的。
本文通过对5个足尺梁柱中节点试件的低周反复荷载试验，较全面地分析比较了非抗震梁柱中节点、抗震梁柱中节点和粘钢加固非抗震梁柱中节点的滞回曲线形状、屈服荷载、极限荷载、曲率变化、塑性铰转动能力、刚度变化及破坏特征等抗震性能的差异。通过对比试验结果，表明了粘钢加固法应用于加固梁柱中节点的可行性。结合理论分析与试验结果，本文还分析了影响粘钢加固梁柱中节点抗剪承载力的因素，从而推出了粘钢加固梁柱中节点抗剪承载力的计算公式。由于在试验中使用了光纤光栅传感器这一较为新型的测试方法，本文还通过比较光纤光栅传感器与电阻应变片所测的应变值，得出了其应用于土木工程检测上的可行性。
本文的主要成果如下：
1．对比研究了三种梁柱中节点(非抗震非加固节点、抗震节点、非抗震加固节点)的抗震性能。
2．通过对比试验，分析了光栅的布拉格波长变化与应变的关系，探讨布拉格光栅传感器用于土木工程检测的可行性及实现途径。
3．推导了适合于粘钢加固节点的抗剪承载力公式。
Joints are the conjunct part and adjacent segment connecting two components in RC structure, which are one of key parts. Once the earthquake occurs, the influence of these joints on the structure is serious. So it is necessary to research on their seismic-capacity and to reinforce them.
Based on the tests of five full-scale beam-column joints under cyclic load, difference of seismic capacity among three beam-column joints, non- seismic, seismic, and bonding-steel reinforced non-seismic, has been analyzed in the terms of hysteretic curve, plastic hinge, rigidity variation, curvature variation, and failure characteristics. The results of comparison tests show it is feasible for the way of reinforcing beam-column joints with bonding steel. The factor was found out by experimental and theoretical analysis, which effected sheer resistance of bonding-steel reinforced beam-column joints, and the formula of sheer capacity for bonding-steel reinforced beam-column joints had been deduced. Compared with the strain value from Fiber Bragg Grating and from resistance stain gages, it is feasible for FBG to be used in civil engineering.
The major job was done hi this paper:
(1) Comparison research seismic on three beam-column joints, non-seismic beam-column joints, seismic beam-column joints, and bonding-steel reinforced non-seismic beam-column joints.
(2) Through comparison experiment, relationship between stain and wavelength of FBG was analyzed, the feasibility and realization of FBG used in detection of Civil Engineering is discussed.
(3) The formula of sheer capacity suit to bonding steel Reinforced beam-column joints was deduced.
本文通过对5个足尺梁柱中节点试件的低周反复荷载试验，较全面地分析比较了非抗震梁柱中节点、抗震梁柱中节点和粘钢加固非抗震梁柱中节点的滞回曲线形状、屈服荷载、极限荷载、曲率变化、塑性铰转动能力、刚度变化及破坏特征等抗震性能的差异。通过对比试验结果，表明了粘钢加固法应用于加固梁柱中节点的可行性。结合理论分析与试验结果，本文还分析了影响粘钢加固梁柱中节点抗剪承载力的因素，从而推出了粘钢加固梁柱中节点抗剪承载力的计算公式。由于在试验中使用了光纤光栅传感器这一较为新型的测试方法，本文还通过比较光纤光栅传感器与电阻应变片所测的应变值，得出了其应用于土木工程检测上的可行性。
本文的主要成果如下：
1．对比研究了三种梁柱中节点(非抗震非加固节点、抗震节点、非抗震加固节点)的抗震性能。
2．通过对比试验，分析了光栅的布拉格波长变化与应变的关系，探讨布拉格光栅传感器用于土木工程检测的可行性及实现途径。
3．推导了适合于粘钢加固节点的抗剪承载力公式。
Joints are the conjunct part and adjacent segment connecting two components in RC structure, which are one of key parts. Once the earthquake occurs, the influence of these joints on the structure is serious. So it is necessary to research on their seismic-capacity and to reinforce them.
Based on the tests of five full-scale beam-column joints under cyclic load, difference of seismic capacity among three beam-column joints, non- seismic, seismic, and bonding-steel reinforced non-seismic, has been analyzed in the terms of hysteretic curve, plastic hinge, rigidity variation, curvature variation, and failure characteristics. The results of comparison tests show it is feasible for the way of reinforcing beam-column joints with bonding steel. The factor was found out by experimental and theoretical analysis, which effected sheer resistance of bonding-steel reinforced beam-column joints, and the formula of sheer capacity for bonding-steel reinforced beam-column joints had been deduced. Compared with the strain value from Fiber Bragg Grating and from resistance stain gages, it is feasible for FBG to be used in civil engineering.
The major job was done hi this paper:
(1) Comparison research seismic on three beam-column joints, non-seismic beam-column joints, seismic beam-column joints, and bonding-steel reinforced non-seismic beam-column joints.
(2) Through comparison experiment, relationship between stain and wavelength of FBG was analyzed, the feasibility and realization of FBG used in detection of Civil Engineering is discussed.
(3) The formula of sheer capacity suit to bonding steel Reinforced beam-column joints was deduced.
引文
[1] 中国工程建设标准化协会标准．混凝土结构加固技术规范．北京：中国建筑工业出版社，1989
[2] 日本建筑肪灾协会．钢筋混凝土建筑抗震加固实例集．日本三荣印刷株式会社，1997
[3] 赵彤，刘明国，张景明．抗震加固方法在国外的若干新发展．建筑结构，2001．31(3)：26～28
[4] 金国芳，李视令，李思明．框架节点加固的抗震性能试验研究．工程抗震，2000．3(1)：14～17
[5] 任玉贺．粘钢加固混凝土框架节点的抗震性能研究．同济大学硕士学位论文，1996．3
[6] 马乐为，王春平．钢筋混凝土框架中节点粘钢加固变形性能试验研究．铁道学报，2001．23(4)：113～115
[7] 马乐为，等．钢筋混凝土框架中节点粘钢加固抗震性能试验研究．西安建筑科技大学学报，1996．28(4)：414～418
[8] 陈敬生，熊丹安．KQ——79型轻板框架节点在模拟地震破坏整体试验中的性能．武汉工业大学，1983
[9] 欧阳建．装配整体式密肋板——柱节点性能的试验研究．武汉工业大学硕士论文，1988
[10] 熊丹安．轻板框架板——柱抗震节点的P——Δ曲线及延性．武汉建材学报，1982．3
[11] 中国工程建设标准化协会标准．混凝土结构加固技术规范．北京：中国建筑工业出版社，1989
[12] 熊丹安．结构构造原理与设计．武汉工业大学出版社，1996
[13] 唐九如．钢筋混凝土框架节点抗震．东南大学出版社，1988．7
[14] 万墨林，韩继云．混凝土结构加固技术．中国建筑工业出版社
[15] 国家标准．混凝土结构加固技术规范(修订草案)．1999
[16] 吕西林．建筑结构加固设计．科学出版社，2001
[17] 唐业清，万墨林．建筑物改造与病害处理．中国建筑工业出版社
[18] 冯乃谦．实用混凝土大全，科学出版社
[19] 张有才，等．建筑物的检测，鉴定加固与改造．冶金工业出版社，1997
[20] 天津大学，同济大学，东南大学，清华大学．混凝土结构．中国建筑工业出版社，1998
[21] 朱伯龙，张琨联．建筑结构抗震设计原理．同济大学出版社，2000
[22] 傅剑平，游渊，白绍良．钢筋混凝土抗震框架节点传力机构分析．重庆建筑大学学报，1996．18(2)：43～51
[23] 中华人民共和国国家标准．混凝土结构设计规范，(GB50010-2002)．北京：中国建筑工业出版社
[24] 罗素蓉．轻骨料混凝土框架节点的受剪承载力理论分析．福州大学学报，1998．26(4)：81～85
[25] 游渊，傅剑平，白绍良对抗震钢筋混凝土框架节点抗剪承载力计算公式的重新识别．重庆建筑大学学报，1997．19(1)：14～24
[26] R.Park,T Paulay. Reinforced concrete structures. 1975
[27] 王传志，滕志明．钢筋混凝土结构理论．中国建筑工业出版社，1985
[28] 樊玲，霍凯成，熊丹安．粘钢加固梁柱中节点受剪承载力计算分析．国外建材科技，2003．3
[29] 许清分，蒋永生，王孔藩，等．带边梁板柱结构体系中边柱节点的受力性能分析．东南大学学报，2002．32(增刊)：314～318
[30] Prohaska J D,Snitzer, et al. Fiber optic bragg grating strain sensor in large scale concrete structures[A].Proc. SPIE[C], 1798:286-294
[31] Alavie A T, Maaskant R,Ohn M M, et al.Application and characterization of intracore grating sensors in a CFRP prestresed concrete girder[C].proc. SPIE, 1994,2191: 103-110
[32] Davis M A,Kersey A D,et al. Dynamic strain monitoring of an in-use interstate bridge using fiber B ragg grating sensors[C].SPIE, 1997,3043 :87-95
[33] Chan P K C,Jin W, Lan K T, Zhou L M, Strain monitoring of composite-boned concrete specimen measurements by use of a FMCW multiplexed fiber Bragg grating sensor
array, SPEI,2000,4077:56-59
[34] Seim J,Udd E,Schulz W. Health monitoring of an Oregon historical bridge with fiber grating strain sensors,SPIE, 1999,3671:123-1234
[35] Nellen P M,et al.Fiber optical bragg grating sensors embedded in CFRP wires[c].SPIE, 1999,3670:440-449
[36] 贾宏志，李育林，忽满利．光纤光栅的制作方法．激光技术，24(3)：174-179
[37] Martin J,Ouellette F. Novel writing technology of long and highly reflective in-fiber grating[J].Electronics Letters, 1994,30(10)811-812
[38] 鲍吉龙，张献民，陈抗生，等．光纤光栅传感器及其应用．激光技术，24(3)174-179
[39] Erdogan T, et al.Decay of ultraviolet-induced fiber Bragg gratings.J.Appl.Phys. 1994,76(3):73-80
[40] Morey W W, Development of fiber Bragg gratings sensors for utility applications. EPRI Report TR-105190,Project 8004-9 Final Report 1995
[41] 3M fiber Bragg gratings application note[A].The Mechanical and Optical Reliability of Fiber Bragg Gratings[C],February 1996
[42] Eseobar P, Gusmerolui V, et al.Fiber-optic interfermetric sensor for concrete s tructures[A].1st European Conf. on Smart Structures and Materials[C],Glasgow 1992.215-219
[43] 懂新永，等．光纤布拉格光栅的金属管封装与电调谐．光子学报，2001．30(4)：422-424
[44] Magne S et al. State-of-strain evaluation with fiber Bragg grating rosettes.application to discrimination between strain and temperature effects in fiber sensors.Applied Optics,36.9437-9447
[45] 赵占朝，刘浩吾，蔡德所．光纤传感无损检测混凝土结构研究述评．力学进展，1995．25(2)223-231
[46] Rao Y J,Jaekson D.Reeent progress in multiplexing technique for in-fiber Bragg grating sensors,SPIE,2895,P. 171-182
[2] 日本建筑肪灾协会．钢筋混凝土建筑抗震加固实例集．日本三荣印刷株式会社，1997
[3] 赵彤，刘明国，张景明．抗震加固方法在国外的若干新发展．建筑结构，2001．31(3)：26～28
[4] 金国芳，李视令，李思明．框架节点加固的抗震性能试验研究．工程抗震，2000．3(1)：14～17
[5] 任玉贺．粘钢加固混凝土框架节点的抗震性能研究．同济大学硕士学位论文，1996．3
[6] 马乐为，王春平．钢筋混凝土框架中节点粘钢加固变形性能试验研究．铁道学报，2001．23(4)：113～115
[7] 马乐为，等．钢筋混凝土框架中节点粘钢加固抗震性能试验研究．西安建筑科技大学学报，1996．28(4)：414～418
[8] 陈敬生，熊丹安．KQ——79型轻板框架节点在模拟地震破坏整体试验中的性能．武汉工业大学，1983
[9] 欧阳建．装配整体式密肋板——柱节点性能的试验研究．武汉工业大学硕士论文，1988
[10] 熊丹安．轻板框架板——柱抗震节点的P——Δ曲线及延性．武汉建材学报，1982．3
[11] 中国工程建设标准化协会标准．混凝土结构加固技术规范．北京：中国建筑工业出版社，1989
[12] 熊丹安．结构构造原理与设计．武汉工业大学出版社，1996
[13] 唐九如．钢筋混凝土框架节点抗震．东南大学出版社，1988．7
[14] 万墨林，韩继云．混凝土结构加固技术．中国建筑工业出版社
[15] 国家标准．混凝土结构加固技术规范(修订草案)．1999
[16] 吕西林．建筑结构加固设计．科学出版社，2001
[17] 唐业清，万墨林．建筑物改造与病害处理．中国建筑工业出版社
[18] 冯乃谦．实用混凝土大全，科学出版社
[19] 张有才，等．建筑物的检测，鉴定加固与改造．冶金工业出版社，1997
[20] 天津大学，同济大学，东南大学，清华大学．混凝土结构．中国建筑工业出版社，1998
[21] 朱伯龙，张琨联．建筑结构抗震设计原理．同济大学出版社，2000
[22] 傅剑平，游渊，白绍良．钢筋混凝土抗震框架节点传力机构分析．重庆建筑大学学报，1996．18(2)：43～51
[23] 中华人民共和国国家标准．混凝土结构设计规范，(GB50010-2002)．北京：中国建筑工业出版社
[24] 罗素蓉．轻骨料混凝土框架节点的受剪承载力理论分析．福州大学学报，1998．26(4)：81～85
[25] 游渊，傅剑平，白绍良对抗震钢筋混凝土框架节点抗剪承载力计算公式的重新识别．重庆建筑大学学报，1997．19(1)：14～24
[26] R.Park,T Paulay. Reinforced concrete structures. 1975
[27] 王传志，滕志明．钢筋混凝土结构理论．中国建筑工业出版社，1985
[28] 樊玲，霍凯成，熊丹安．粘钢加固梁柱中节点受剪承载力计算分析．国外建材科技，2003．3
[29] 许清分，蒋永生，王孔藩，等．带边梁板柱结构体系中边柱节点的受力性能分析．东南大学学报，2002．32(增刊)：314～318
[30] Prohaska J D,Snitzer, et al. Fiber optic bragg grating strain sensor in large scale concrete structures[A].Proc. SPIE[C], 1798:286-294
[31] Alavie A T, Maaskant R,Ohn M M, et al.Application and characterization of intracore grating sensors in a CFRP prestresed concrete girder[C].proc. SPIE, 1994,2191: 103-110
[32] Davis M A,Kersey A D,et al. Dynamic strain monitoring of an in-use interstate bridge using fiber B ragg grating sensors[C].SPIE, 1997,3043 :87-95
[33] Chan P K C,Jin W, Lan K T, Zhou L M, Strain monitoring of composite-boned concrete specimen measurements by use of a FMCW multiplexed fiber Bragg grating sensor
array, SPEI,2000,4077:56-59
[34] Seim J,Udd E,Schulz W. Health monitoring of an Oregon historical bridge with fiber grating strain sensors,SPIE, 1999,3671:123-1234
[35] Nellen P M,et al.Fiber optical bragg grating sensors embedded in CFRP wires[c].SPIE, 1999,3670:440-449
[36] 贾宏志，李育林，忽满利．光纤光栅的制作方法．激光技术，24(3)：174-179
[37] Martin J,Ouellette F. Novel writing technology of long and highly reflective in-fiber grating[J].Electronics Letters, 1994,30(10)811-812
[38] 鲍吉龙，张献民，陈抗生，等．光纤光栅传感器及其应用．激光技术，24(3)174-179
[39] Erdogan T, et al.Decay of ultraviolet-induced fiber Bragg gratings.J.Appl.Phys. 1994,76(3):73-80
[40] Morey W W, Development of fiber Bragg gratings sensors for utility applications. EPRI Report TR-105190,Project 8004-9 Final Report 1995
[41] 3M fiber Bragg gratings application note[A].The Mechanical and Optical Reliability of Fiber Bragg Gratings[C],February 1996
[42] Eseobar P, Gusmerolui V, et al.Fiber-optic interfermetric sensor for concrete s tructures[A].1st European Conf. on Smart Structures and Materials[C],Glasgow 1992.215-219
[43] 懂新永，等．光纤布拉格光栅的金属管封装与电调谐．光子学报，2001．30(4)：422-424
[44] Magne S et al. State-of-strain evaluation with fiber Bragg grating rosettes.application to discrimination between strain and temperature effects in fiber sensors.Applied Optics,36.9437-9447
[45] 赵占朝，刘浩吾，蔡德所．光纤传感无损检测混凝土结构研究述评．力学进展，1995．25(2)223-231
[46] Rao Y J,Jaekson D.Reeent progress in multiplexing technique for in-fiber Bragg grating sensors,SPIE,2895,P. 171-182