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No.14 (1977/09) >

 
Title :負の曲げを受ける断続合成桁の一実験
Title alternative :An Experimental Study of Composite Beams without Shear Connectors in the Negatine Bending Region
Authors :浜田, 純夫
佐久川, 政健
渡慶次, 一彦
Authors alternative :Hamada, Sumio
Sakugawa, Seiken
Tokeshi, Kazuhiko
Issue Date :30-Sep-1977
Abstract :Composite girders are used extensively as highway bridges and the most of them are simple span girders. Although continuous composite girders are more economical, give better driving conditions, and have greater capacity than simple span girders, they have not been used much because of complicate construction where prestressing is involved in negative moment regions. The alternative method results in continuous composite girders with normal reinforcement in concrete slab in the region of negative bending. Composite girders with no shear connectors in the negative moment region have been specified in AASHO Specification. Such composite girders are commonly practiced in the United States, although the area of reinforcing bars in the slab is neglected in the analysis. The present paper describes the test results of composite beams with shear connectors at the beam ends, which are subjected to negative bending. The test results show that the reinforcement is effective to tension stress produced in the concrete slab and that the ultimate moment of the beams tested are higher the theoretical ultimate moment. However, composite beams with shear connectors at the beam ends are more flexible than normal composite beams.
Type Local :紀要論文
ISSN :0387-429X
Publisher :琉球大学理工学部
URI :http://hdl.handle.net/20.500.12000/26916
Citation :琉球大学理工学部紀要. 工学篇 = Bulletin of Science & Engineering Division, University of the Ryukyus. Engineering no.14 p.113 -124
Appears in Collections:No.14 (1977/09)

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