Investigation of a Suitable Shear Friction Interface between UHPC and Normal Strength Concrete for Bridge Deck Applications
Investigation of a Suitable Shear Friction Interface between UHPC and Normal Strength Concrete for Bridge Deck Applications
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用于桥面应用的 UHPC 和普通强度混凝土之间合适的剪切摩擦界面的研究
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发表时间：
2017
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通讯作者：
Chaney Em
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作者：
Chaney Em
考虑到由于桥面顶面裂缝的形成而导致桥面劣化，可以通过在普通强度混凝土(NC)板上覆盖一层薄薄的超高性能混凝土(UHPC)来形成具有成本效益但高度耐用的组合桥面。然而，需要研究UHPC和NC界面的可靠剪切摩擦以及影响连接行为的因素，以使这一概念在现场应用中成为现实。机械连接两层不被认为是一种可能的选择，因为这会增加建筑成本
Given that bridge deck deterioration occurs due to the formation of cracks on the top surface, a cost-effective yet highly durable composite bridge deck could be formed by overlaying a thin ultra-high performance concrete (UHPC) layer over a normal-strength concrete (NC) slab. However, a dependable shear friction for the UHPC and NC interface and the factors influencing the connection’s behavior needs to be investigated to make this concept a reality for field applications. Mechanically connecting the two layers was not considered a possible option as this would increase the cost of construction