Circular multi-cavity steel plate-concrete composite beam
A technology of concrete and composite beams, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as poor crack resistance, affect project progress, and long construction period, achieve strong lateral restraint, improve construction efficiency, and overcome cracks exposed effect
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[0011] Such as figure 1 and 2 As shown, a circular multi-cavity steel plate-concrete composite beam includes: a circular multi-cavity space steel beam 1 and concrete, and concrete is poured in the circular multi-cavity space steel beam 1 to form a combined integral member; wherein: The multi-cavity space steel beam 1 is composed of a steel plate shell and a circular or semicircular steel plate cavity 6, and the steel plate shell is composed of 2 long steel plates 2, 1 bottom steel plate 3 and 2 short steel plates 4 to form a structure without a cover. Cuboid structure, circular or semicircular steel plate cavity 6 is welded in the steel plate shell to form a circular multi-cavity steel beam 1, and concrete is poured in the steel beam 1 to form a circular multi-cavity steel plate-concrete composite beam.
[0012] The height of the circular or semicircular steel plate cavity 6 is lower than the steel plate shell, and the height difference between the two must be greater than th...
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