Structural Behaviour of UHPC under Tensile Stress and Biaxial Loading Summary

Structural Behaviour of UHPC under Tensile Stress and Biaxial Loading Summary
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UHPC 在拉伸应力和双轴载荷下的结构行为总结

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发表时间：
2006
期刊：
影响因子：
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通讯作者：
E. Fehling
E. Fehling
中科院分区：
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文献类型：
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作者：
T. Leutbecher;E. Fehling

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2004年夏天，卡塞尔大学结构混凝土系开始了一项关于超高性能混凝土（UHPC）的广泛试验计划。这些调查的目的是分析钢纤维和传统的钢筋在拉伸应力下的相互作用，以及开裂对UHPC的抗压强度的影响。试验是在板状结构构件和不同截面的受拉构件上进行的。这些试验的目的是建立拉伸和压缩条件下开裂UHPC的本构模型。在此基础上，应推导出极限状态（ULS）和正常使用极限状态（SLS）的计算方法（裂缝宽度和挠度的计算，极限状态设计）。
An extensive test programme on Ultra High Performance Concrete (UHPC) has been started at the Chair of Structural Concrete of Kassel University in summer 2004. The purpose of these investigations is to analyse the interaction of steel fibres and conventional bar reinforcement under tensile stress as well as the influence of cracking on the compressive strength of UHPC. The tests are conducted on panel-shaped structural members and on tensile members with different cross-sections. The objective of these tests is to develop constitutive models for cracked UHPC under tension and under compression. Based on this, calculation methods for ultimate limit state (ULS) as well as for serviceability limit state (SLS) shall be derived (calculation of crack width and deflections, ultimate limit state design).