Discussion on Crack Control Measures in the Negative Moment Zone of Steel-Concrete Composite Beams
The steel-concrete composite beam has the characteristics of low self-weight,good seismic performance,less steel usage,high stiffness and low flexibility.Compared with the simply-supported composite beam,the steel-concrete continuous composite beam can improve the load capacity,enhance stiffness and increase the application span,but the negative moment zone at its pier top can produce adverse situations such as concrete in tension and steel beams in compression.This paper introduces crack control measures in the negative moment zone of the steel-concrete continuous composite beam bridge to limit the crack width and prevent the steel beam from instability,so as to effectively improve the mechanical performance of the bridge deck in the negative moment zone of the steel-concrete composite beam and make the overall structure more durable.
万方数据
维普
