The Mechanical Behavior of Composite Prestressed Concrete Girders with Corrugated Steel Webs

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  • 波形鋼板をウェブに用いた複合プレストレストコンクリート桁の力学的挙動に関する研究

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Flexural shear tests were conducted in order to clarify the mechanical behavior of steel girders having corrugated web and composite prestressed concrete girders with corrugated steel web. In this study, a new type of shear connection at the interface of the corrugated steel web and the lower concrete flange in the composite prestressed concrete girders was proposed and also an application of composite prestressed concrete girders having corrugated steel web to the precast segmental construction was proposed. The experimental results indicated that the girders with corrugated steel web showed favorable shear resistance, and the pure shear stresses were seen in the corrugated steel web so that the prestressing forces were not transmitted to the corrugated steel web. A practical formula for estimating the buckling strength of corrugated steel web, in which intermediate buckling mode was included, was derived and good coincidence was shown between the calculated values obtained by this formula and the experimental ones.

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