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首页> 美国政府科技报告 >Evaluation of Shear Connectors on Precast Reinforced Concrete Box Sections
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Evaluation of Shear Connectors on Precast Reinforced Concrete Box Sections

机译：预制钢筋混凝土箱形截面剪力连接件的评估

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Presently precast concrete box culverts installed with less than two feet of cover conform to ASTM Standard C 850-76. Furthermore, the AASHTO 'Standard Specifications for Highway Bridges' have been interpretted to require edge beams along edges of top slabs of box culverts if shear connectors are not used. The Ohio Department of Transportation specifies two acceptable types of shear connectors and limits their maximum spacing to thirty inches. The investigation was undertaken to evaluate the effectiveness of shear connectors and to assess the spacing requirements as specified by ODOT. This was accomplished by performing field testing on actual box sections before the roadway was open to traffic. Testing of one-sixth size scale models was also performed. Based upon the results of the research, neither shear connectors nor edge beams are required for satisfactory performance of box sections conforming to ASTM C 850-76. ODOT no longer specifies the use of shear connectors.

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