预应力方套管连接胶合木梁柱节点抗弯试验
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同济大学建筑工程系,同济大学建筑工程系,同济大学建筑工程系

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TU366.2

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国家自然科学基金(51378382)


Rotational Performance of PreStressed MultiBolted Glulam Connection with Square Tubes
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    摘要:

    提出在胶合木结构中采用预应力方套管螺栓连接,该连接采用高强螺栓和钢套管作为连接件.通过单调加载和往复加载下的梁柱节点抗弯试验,对比了方套管节点和传统螺栓群连接节点的破坏模式、弯矩转角曲线、滞回曲线、强度、刚度和耗能性能.结果表明,由于摩擦阶段钢管与钢板间的摩擦力确保了初始传力,套管节点的初始转动刚度显著提升,耗能能力也得到改善.

    Abstract:

    This paper presents an experimental study on the moment resisting capacity and stiffness of the proposed prestressed bolted connection. Highstrength bolts with square tubes were used as fasteners in such connections. Two groups of experimental tests were conducted with Tshaped glulam beamtocolumn connections at monotonic and reversed cyclic loading. The failure mode, momentrotation curve, strength, stiffness and energy dissipation property of the prestressed bolted connections with square tubes were obtained and compared with those of traditional bolted connections. The results show that the initial rotational stiffness of prestressed bolted connection increases significantly as a result of the friction between steel tubes and steel plate at the friction stage, and the energy dissipation capacity of prestressed bolted connection is also improved.

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赵艺,何敏娟,马人乐.预应力方套管连接胶合木梁柱节点抗弯试验[J].同济大学学报(自然科学版),2016,44(8):1182~1189

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历史
  • 收稿日期:2015-10-16
  • 最后修改日期:2016-04-26
  • 录用日期:2016-02-29
  • 在线发布日期: 2016-09-06
  • 出版日期: