Continuous concrete construction with high-performance materials

使用高性能材料进行混凝土施工，通过具有成本效益和耐用性的材料，实现更可持续的施工实践。与传统的钢筋相比，高强度的ASTM A1035钢筋和纤维增强混凝土都提供了减少钢筋堵塞的潜力。此外，A1035钢的冶金差异使其腐蚀敏感性降低。这些有利条件使高性能材料成为建筑或桥梁构件的可行选择，在这些地方，强度、延展性和耐久性都是主要的设计考虑因素。然而，尽管使用这些高性能材料的潜在好处，可用的研究来评估其在常见结构形式的可行性是稀缺的。对A1035钢的研究通常集中在单跨结构上，而不是工业上常用的连续多跨或框架结构。关于这种钢与纤维增强混凝土复合系统的性能信息有限。在这两种情况下，A1035钢独特的力学性能，包括更高的峰值强度、缺乏屈服平台和改变的键合特性，都可能对结构性能产生显著影响。系统在地震或其他极端载荷下的延展性和性能也是一个值得关注的问题。

The use of high-performance materials for concrete construction enables more sustainable construction practices through cost effective and durable materials. High-strength ASTM A1035 steel reinforcement and fibre-reinforced concrete both offer the potential for reduced reinforcement congestion compared to traditional reinforcing steels. Moreover, differences in the metallurgy of A1035 steel give it reduced corrosion susceptibility. These favourable conditions make high-performance materials viable options for construction of building or bridge components where strength, ductility and durability are all primary design considerations. However, despite the potential benefits of using these high-performance materials, available research to assess their viability in common structural forms is scarce. Research with A1035 steel has typically focused on simple span construction rather than the continuous multi-span or frame members commonly used in industry. Only limited information is available on performance of this steel as a composite system with fiber-reinforced concrete. In both cases the structural performance may be significantly impacted by the unique mechanical properties of A1035 steel including its higher peak strength, lack of yield plateau, and altered bond characteristics. System ductility and performance under seismic or other extreme loading is also a concern.