Improving Precast Truss Reinforced Laminated Concrete Slab System

2020 IEEE 2nd International Conference on Architecture, Construction, Environment and Hydraulics (ICACEH) Pub Date : 2020-12-25 DOI:10.1109/ICACEH51803.2020.9366259

Jiarui Qi, H. Yang

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引用次数: 1

Abstract

The cost of prefabricated concrete buildings in China is higher than that of cast-in-place buildings. It has been pointed out that the requirement of Chinese prudent technical standards has led to high costs. It is highly unlikely to change the standards. However, we need to reexamine and improve the precast components used in the prefabricated buildings for cost-effectiveness. To improve the laminated slab floor system, it is essential to have a comprehensive understanding of the truss reinforced laminated slab structure. Two experimental tests for the slabs reinforced with steel bar truss and steel tube/bar truss were carried out. The results show that the load characteristic values of the tube-bar truss reinforced slabs are significantly improved and have greater initial stiffness and resistance to deformation than the steel bar truss reinforced slab. When the specimen is damaged, the grout-filled steel tube does not undergo out-of-plane buckling and in-plane uplift. The result proposed the structure of the steel pipe allows a cost-effective and sustainable dry prefabricated and laminated slab system.

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改进预制桁架加筋混凝土叠合板体系

在中国，预制混凝土建筑的造价高于现浇建筑。有人指出，中国严格的技术标准要求导致了高成本。它不太可能改变标准。然而，我们需要重新审视和改进装配式建筑中使用的预制构件，以提高成本效益。为了改进叠合板楼盖体系，有必要对桁架加筋叠合板结构有一个全面的认识。对钢筋桁架加筋板和钢管/钢筋桁架加筋板进行了试验研究。结果表明:管杆桁架加筋板的荷载特征值明显提高，具有比钢筋桁架加筋板更大的初始刚度和抗变形能力;试件破坏时，灌浆钢管不发生面外屈曲和面内隆起。结果表明，钢管结构允许具有成本效益和可持续的干预制和叠合板系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2020 IEEE 2nd International Conference on Architecture, Construction, Environment and Hydraulics (ICACEH)

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