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钢板-混凝土组合加固混凝土T梁的抗弯性能试验

, PP. 32-40

Keywords: 桥梁工程,钢筋混凝土T梁,钢板-混凝土组合加固,极限抗弯承载能力,相对滑移,塑性破坏

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Abstract:

设计了4根钢板-混凝土组合加固混凝土T梁进行抗弯承载力试验,试件的主要设计参数包括损伤程度和植筋间距。采用荷载传感器、位移计和应变计,分别测量了加载过程中试验梁的荷载、挠度、应变、裂缝的产生和发展、新老混凝土界面与钢板-加固混凝土界面的纵向滑移,采用有限元软件ANSYS分析了试件的受力性能,采用塑性方法研究了试件的极限抗弯承载力,并对比了模型试验、数值模拟与理论分析结果。分析结果表明钢板-混凝土组合加固可使混凝土T梁极限抗弯承载力提高约2倍,植筋间距与原梁弯曲损伤程度对组合加固T梁的极限抗弯承载力影响约为4%,植筋间距越大,新老混凝土界面纵向相对滑移越大,极限抗弯承载力的数值计算值和理论计算值与试验值最大相对差值为9%,因此,模型试验、数值模拟与理论计算结果均表明钢板-混凝土组合加固可显著提高混凝土T梁的极限抗弯承载力。

References

[1]  姚晓飞,徐 岳,付迎春.混凝土铰接T梁桥结构体系损伤评价试验[J].长安大学学报:自然科学版,2009,29(2):65-69. YAO Xiao-fei, XU Yue, FU Ying-chun. Test on damage assessment of hinged concrete T-beam bridge system[J]. Journal of Chang'an University: Natural Science Edition, 2009, 29(2): 65-69.(in Chinese)
[2]  赵卫国.预应力混凝土梁超载能力分析[J].交通运输工程学报,2007,7(5):73-76,83. ZHAO Wei-guo. Overload capacity analysis of prestressed reinforced concrete beam[J]. Journal of Traffic and Transportation Engineering, 2007, 7(5): 73-76, 83.(in Chinese)
[3]  聂建国,赵 洁,唐 亮.钢板-混凝土组合在钢筋混凝土梁加固中的应用[J].桥梁建设,2007(3):76-79. NIE Jian-guo, ZHAO Jie, TANG Liang. Application of steel plate and concrete composite to strengthening of reinforced concrete girder[J]. Bridge Construction, 2007(3): 76-79.(in Chinese)
[4]  聂建国,赵 洁.钢板-混凝土组合加固钢筋混凝土简支梁试验研究[J].建筑结构学报,2008,29(5):50-56. NIE Jian-guo, ZHAO Jie. Experimental study on simply supported RC beams strengthened by steel plate-concrete composite technique[J]. Journal of Building Structures, 2008, 29(5): 50-56.(in Chinese)
[5]  高 珊.钢板-混凝土组合加固钢筋混凝土T梁抗弯性能试验研究[D].西安:长安大学,2009. GAO Shan. Experimental investigation of bending behaviour of PC T-beams strengthened by steel plate and concrete composite technique[D]. Xi'an: Chang'an University, 2009.(in Chinese)
[6]  任腾先.钢板-混凝土组合加固钢筋混凝土T梁抗剪性能试验研究[D].西安:长安大学,2009. REN Teng-xian. Experimental research on shearing capacity of RC T-beams strengthened by steel plate-concrete composite technique[D]. Xi'an: Chang'an University, 2009.(in Chinese)
[7]  WRIGHT H D, ODUYEMI T O S, EVANS H R. The design of double skin composite elements[J]. Journal of Constructional Steel Research, 1991, 19(2): 111-132.
[8]  WRIGHT H D, ODUYEMI T O S, EVANS H R. The experimental behaviour of double skin composite elements[J]. Journal of Constructional Steel Research, 1991, 19(2): 97-110.
[9]  WRIGHT H D, ODUYEMI T O S. Partial interaction analysis of double skin composite beams[J]. Journal of Constructional Steel Research, 1991, 19(4): 253-283.
[10]  GB 50367―2006,混凝土结构加固设计规范[S]. GB 50367―2006, design code for strengthening concrete structure[S].(in Chinese)
[11]  熊学玉,许立新,胡家智.化学植筋的拉拔试验研究[J].建筑技术,2000,31(6):383-384. XIONG Xue-yu, XU Li-xin, HU Jia-zhi. Pull-out experiment study of chemically bonded rebar[J]. Architecture Technology, 2000, 31(6): 383-384.(in Chinese)
[12]  楼正文,谢建民,章旭江.关于工程植筋技术的相关参数探讨[J].建筑施工,2005,27(3):64-66. LOU Zheng-wen, XIE Jian-min, ZHANG Xu-jiang. Discussion on relevant parameters concerning engineering post-rebar-embedding technique[J]. Building Construction, 2005, 27(3): 64-66.(in Chinese)
[13]  GB 50010―2002,混凝土结构设计规范[S]. GB 50010―2002, code for design of concrete structures[S].(in Chinese)

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