Parameters Analysis for Bending Properties of Externally Prestressed Concrete Beam with Corrugated Steel Webs

Based on the bending moment-curvature method, a calculation program for the whole bending process of externally prestressed concrete beam with corrugated steel webs is compiled and parametric analysis is conducted. Considering the nonlinearity of material, this procedure can calculate the whole bend...

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Bibliographic Details
Published in:MATEC web of conferences 2018-01, Vol.186, p.2006
Main Authors: Xu, Qiang, Song, Jianyong, Feng, Jianxiang, Du, Jinsheng
Format: Article
Language:English
Subjects:
Bending moments
Composite beams
Compressive strength
Concrete properties
Cross-sections
Mathematical analysis
Parametric analysis
Prestressed concrete
Prestressing
Reinforcing steels
Steel structures
Tendons
Webs (structural)
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Summary:Based on the bending moment-curvature method, a calculation program for the whole bending process of externally prestressed concrete beam with corrugated steel webs is compiled and parametric analysis is conducted. Considering the nonlinearity of material, this procedure can calculate the whole bending process of externally prestressed composite beam with corrugated steel webs under different load, cross section, and external tendons profiles and output the cross section strain of concrete and ordinary reinforcements, stress increment of external prestressing tendons and mid-span deflection. The results show that the tension steel area has the greatest impact on the bending performance of simply supported externally prestressed composite beam with corrugated steel webs; The second is concrete strength and effective external prestress; The compression steel area has limited impact on the bending performance of such beams. The results can provide a reference for design of the beam.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201818602006