A double stiffened SCS square steel tube concrete structure based on stirrups and stiffening ribs
A technology of concrete structures and square steel pipes, applied in the direction of long-strip structural members, structural elements, arched beams, etc. for load-bearing, can solve the problems of poor connection performance, small hoop effect, inconvenient construction, etc., and achieve torsion resistance Good performance, low construction cost and easy construction
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Embodiment 1
[0031] Such as figure 1 , figure 2 which is image 3As shown, the present invention includes a square steel pipe 1, a circular steel pipe 2 set inside the square steel pipe 1, multiple PBL stiffeners 3 arranged between the square steel pipe 1 and the circular steel pipe 2, and multiple PBL stiffeners 3 arranged from top to bottom. The stirrups 6 on the multiple PBL stiffeners 3 and the multiple PBL stiffeners 3 and the multiple stirrups 6 are all laid out and filled in the cavity between the square steel pipe 1 and the circular steel pipe 2 The concrete structure 4 formed by pouring the concrete inside, the square steel pipe 1 and the circular steel pipe 2 are arranged coaxially. The laying direction of multiple PBL stiffeners 3 is consistent with the central axis direction of the circular steel pipe 2 and the square steel pipe 1 , and the multiple PBL stiffeners 3 are tightly connected with the concrete structure 4 as a whole. The longitudinal lengths of the square steel ...
Embodiment 2
[0051] In this embodiment, the difference from Embodiment 1 is: A1:A2=1:0.6, the wall thickness of the square steel pipe 1 and the round steel pipe 2 are both 25mm, and the cross-sectional area of the square steel pipe 1 is 10m 2 , the four PBL stiffeners 3 are respectively fixed on the two centerlines of the square steel pipe 1 .
[0052] In this embodiment, the structures and connections of other parts are the same as those in Embodiment 1.
Embodiment 3
[0054] In this embodiment, the difference from Embodiment 1 is: A1:A2=1:0.8, the wall thickness of the square steel pipe 1 and the round steel pipe 2 are both 25mm, A1=10m 2 .
[0055] In this embodiment, the structures and connections of other parts are the same as those in Embodiment 1.
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