Rectangular steel tube confined ultrahigh-strength concrete column and construction method thereof
A technology of ultra-high-strength concrete and rectangular steel pipes, which is applied in building reinforcements, processing of building materials, and structural elements. The effect of improving the carrying capacity
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[0020] Such as Figure 1-2 As shown, a rectangular steel pipe-constrained ultra-high-strength concrete column of the present invention includes a steel pipe assembly 1, an ultra-high-strength concrete 2 and a longitudinal steel bar 3, and the steel pipe assembly 1 includes a rectangular steel pipe 12 and two rectangular steel sleeves 11, The outer contours of the two rectangular steel casings 11 match the inner contours of the rectangular steel pipes 12, and the two rectangular steel casings 11 are respectively sleeved inside the two ends of the rectangular steel pipes 12, and the longitudinal ends of the two rectangular steel casings corresponding to the two ends of protruding rectangular steel pipe 12;
[0021] The longitudinal end faces of the ultra-high strength concrete 2 are respectively flush with the end faces of the steel pipe assembly 1 .
[0022] The compressive strength of the ultra-high-strength concrete 2 is greater than or equal to 100 MPa and has no coarse agg...
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