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首页> 外文期刊>Engineering Structures >Experimental study on joint of spliced steel-PSC hybrid girder, Part I: Proposed parallel-perfobond-rib-type joint _
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Experimental study on joint of spliced steel-PSC hybrid girder, Part I: Proposed parallel-perfobond-rib-type joint _

机译：钢-PSC混合钢梁联合节点的试验研究，第一部分：拟平行翼肋式联合节点_

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摘要

The object of this study is to determine and propose a suitable joint type for spliced hybrid I-girder bridges consisting of steel girders at the mid-span and PSC (prestressed concrete) girders at the supports. Three joint types are experimentally tested on small-scale steel-PSC hybrid beams to determine the type offering the best combination of structural capacity and constructional convenience. One joint type, first suggested and trialed in the present study, is composed of multiple perfobond rib connectors attached in parallel to upper and lower plates located between the steel girder and the PSC girder. The two other types incorporate the stud connectors, which are widely used in connecting steel and concrete, but differ in the amount of reinforcement. The test results reveal that a joint consisting of parallel perfobond ribs and a joint consisting of studs with sufficient reinforcement show the similar beam strength and failure modes resulting from the failure of the PSC components. Notably, beams of the proposed joint type consisting of perfobond ribs, compared to those with studs, show higher stiffness and strength prior to reaching their ultimate strength, as well as lower strains in the joint. Indeed, with the parallel-perfobond-rib-type joint, advances in constructional convenience as well as structural capacity can be anticipated. Thus, it is concluded that the proposed joint type is a more suitable system for spliced steel-PSC hybrid girder bridges.
机译：这项研究的目的是确定并提出一种适用于由中跨的钢梁和支座的PSC（预应力混凝土）梁组成的拼接式混合I型梁桥梁的合适节点类型。在小尺寸钢-PSC混合梁上对三种接头类型进行了实验测试，以确定可提供结构能力和施工便利性最佳组合的类型。一种在本研究中首次提出并尝试使用的接头类型，是由多个perfobond肋骨连接器组成，这些连接器平行地连接到位于钢梁和PSC梁之间的上下板。另外两种类型包含螺柱连接器，它们广泛用于连接钢和混凝土，但加固量不同。测试结果表明，由平行的Perbonbond肋骨组成的接头和由具有足够加强筋的螺柱组成的接头显示出相似的梁强度和PSC组件失效所导致的失效模式。值得注意的是，与具有双头螺栓的梁相比，建议的接头类型的梁由全粘结肋构成，在达到其极限强度之前显示出更高的刚度和强度，并且在接头中具有较低的应变。实际上，通过平行-肋骨-肋骨型接头，可以预期在构造便利性和结构能力方面的进步。因此，可以得出结论，提出的接头类型是一种更适合用于钢-PSC混合梁桥的系统。

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  • 来源
    《Engineering Structures》 |2011年第8期|p.2382-2397|共16页
  • 作者

    Sang-Hyo Kim; Chan-Goo Lee; Jin-Hee Ahn; Jeong-Hun Won;

  • 作者单位

    School of Civil and Environmental Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Republic of Korea;

    School of Civil and Environmental Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Republic of Korea;

    School of Civil and Environmental Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Republic of Korea;

    School of Civil and Environmental Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Republic of Korea,CS Engineering & Construction, 537 Namdaemunro 5-ga,Joong-gu, Seoul 100-722, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    joint; spliced hybrid I-girder; steel-PSC hybrid beam; perfobond rib; stud;

    机译：节点;拼接式混合工字梁;钢-PSC混合梁;肋骨;螺柱;

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