Behaviour of anchors in post-tensioned high-strength concrete slabs

后张法高强混凝土板中锚杆的性能

• 批准号: LP0347274
• 负责人: Prof Priyan Mendis
• 金额: $ 6.66万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-12-15 至 2007-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0347274
• 关键词: Behaviour; anchors; post; tensioned; strength

Recently High-strength concrete(HSC) was introduced to minimise the time required for stressing the tendons in post-tensioned construction(PC), which is the preferred construction method for long span slabs in Australia and overseas. Although HSC is an obvious choice for this application, many failures have been observed in the live and dead end anchors of PC slabs and there is in fact very little understanding of relationships between specified concrete properties and performance. Through a systematic experimental and theoretical study, the behaviour of anchor regions of these slabs, including the reasons for failure will be investigated.

最近，高强混凝土(HSC)被引入，以最大限度地减少在后张法施工(PC)中对钢筋施加应力所需的时间，这是澳大利亚和海外大跨度板的首选施工方法。尽管HSC显然是这种应用的选择，但在PC板的活锚固和死端锚固中已经观察到许多失效，而且实际上对特定的混凝土性能和性能之间的关系了解很少。通过系统的试验和理论研究，研究了这些板的锚固区的性能，包括破坏的原因。