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首页> 外文会议>International conference on sustainable development of critical infrastructure 2014 >Reliability Assessment of Bolting Systems for Steel Frame Connected to Reinforced Concrete Structure
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Reliability Assessment of Bolting Systems for Steel Frame Connected to Reinforced Concrete Structure

机译：钢框架与钢筋混凝土结构连接的螺栓系统的可靠性评估

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摘要

For improving the performance and safety, retrofitting/strengthening or repairing of existing reinforced concrete structures is an important issue in structural engineering. Attaching steel bracing system is one of the common solutions for retrofitting or repairing of damaged structures. An efficient load transfer between existing structural members and attached retrofit system is significant to such repairs. For steel bracing systems, the load transfer between the steel system and existing concrete structures are achieved through proper anchorage between them. A typical steel-to-concrete connection includes: a steel attachment consisting of a baseplate welded to the attached member and the anchors that actually connect the steel to concrete as bolting system. In the present paper, reliability method is used to assess the safety of the steel bolting system that is used to connect steel frame systems to existing reinforced concrete columns. Herein, the steel frame systems are used to retrofit/strengthen existing reinforced concrete corbel beams as structural supporting system. The effect of applied loadings, bolts geometry, bolts spacing variation and concrete quality on the concrete breakout strength are examined for the current problem. Reliability is assessed by estimating the failure probability of the single bolt failure and system bolt failure. The results are used to determine the parameters affecting safety of the connection system and to improve the performance and the technique of strengthening/repairing of the steel supporting frame systems.
机译：为了提高性能和安全性，对现有钢筋混凝土结构进行翻新/加固或修理是结构工程中的重要问题。连接钢支撑系统是对受损结构进行翻新或修复的常见解决方案之一。现有结构构件和连接的翻新系统之间的有效载荷传递对于此类维修非常重要。对于钢支撑系统，钢系统与现有混凝土结构之间的载荷传递是通过它们之间的适当锚固来实现的。典型的钢对混凝土连接包括：钢制附件，包括焊接到连接构件上的基板和实际上通过螺栓连接系统将钢与混凝土连接的锚。在本文中，可靠性方法用于评估用于将钢框架系统连接到现有钢筋混凝土柱的钢螺栓系统的安全性。在此，钢框架系统用于翻新/加固现有的钢筋混凝土牛腿梁作为结构支撑系统。针对当前问题，研究了施加载荷，螺栓几何形状，螺栓间距变化和混凝土质量对混凝土抗折强度的影响。通过估计单螺栓故障和系统螺栓故障的故障概率来评估可靠性。结果用于确定影响连接系统安全性的参数，并改善性能和钢支撑框架系统的加固/修复技术。

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  • 来源
  • 会议地点 Shanghai(CN)
  • 作者

    Hasan Kamal; Jafarali Parol; Thamer Al-Yaqoub; Zafer Sakka; Ahmad Yousif;

  • 作者单位

    Infrastructure Risk and Reliability Program, Energy and Building Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109 Kuwait;

    Infrastructure Risk and Reliability Program, Energy and Building Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109 Kuwait;

    Infrastructure Risk and Reliability Program, Energy and Building Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109 Kuwait;

    Infrastructure Risk and Reliability Program, Energy and Building Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109 Kuwait;

    Infrastructure Risk and Reliability Program, Energy and Building Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109 Kuwait;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    concrete bolt connection; retrofitting/strengthening; reliability analysis; steel frame;

    机译：混凝土螺栓连接；翻新/加强可靠性分析；钢架;

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