Shaped-steel concrete frame-steel supporting structure section-changeable conversion node

Abstract

The invention is a variable section conversion node for profiled steel concrete framework-steel support structure, interconnecting in-pillar profiled steel, in-beam profiled steel, steel support, in-pillar reinforced concrete and in-beam reinforced concrete and pouring then into an organic whole, where the steel support is orthogonally connected with in-pillar an in-beam profiled steel flange plates by section conversion, the web of the in-beam profiled steel in the node connection position is converted into heightening variable section web and the top surface of the heightening variable section web is welded with widening variable section upper wing plate, the bottom surface of the heightening variable section web is welded with widening variable section lower wing plate; the shape of the steel support in the node connecting position is converted into structure of variable section node conversion region and two flange plates of the steel support in variable section conversion region are orthogonally connected with the in-pillar and in-beam profiled steel respectively. And the invention intensifies fore bearing performance of node regions of the profiled steel concrete framework-steel support structure and ability of cooperating of profiled steel and reinforced concrete.

Description

(1) Technical field

[0001] The invention relates to a node structure of a steel support and a steel beam column in a steel-concrete composite building. (2) Background technology

[0002] The National Gymnasium is one of the three main venues for the Beijing 2008 Olympic Games. During the Olympic Games, gymnastics competitions and handball finals will be held mainly, and wheelchair basketball competitions will be held during the Paralympic Games. Its buildings are composed of a competition hall and a warm-up hall. The competition hall can accommodate about 19,000 spectators, with a total construction area of ​​80,890m 2 , one basement and four floors above ground. The longitudinal length of the roof plane projection is 195.5m, and the horizontal width is 114m.

[0003] Steel Reinforced Concrete Composite Structure (SRC structure for short) is a main form of steel and concrete composite structure. The characteristic of the steel concrete structure is that the steel is confi...

Examples

Embodiment 1

[0038] Embodiment 1 Referring to Fig. 1 and Fig. 2, the variable cross-section transition node of the steel-concrete frame steel support structure is handed over by the column medium steel 1, the beam medium steel 2, the steel support 3, the column reinforced concrete 4, and the beam reinforced concrete 7 And poured into one, the steel support 3 is handed over to the column medium steel 1 and the beam medium steel 2, which is characterized in that:

[0039] Column main reinforcement 5 and column stirrup 10 are distributed on the outer periphery of the column medium-shaped steel 1, and some column main reinforcement 5 passes through the ribs of the curved upper flange 25, the curved lower flange 26, and the widened and variable-section upper flange 27. hole 18. The corner reinforcement 16 in the main reinforcement of the column is located at the corner.

[0040] Beam steel bars 6 are distributed on the outer periphery of the beam medium steel 2; the upper iron 14 in the beam s...

Embodiment 2

[0049] Embodiment 2 Referring to FIG. 3 , the difference from embodiment 1 is that there are no column main bars 3 and column stirrups 10 on the periphery of the column medium steel 1 , and there is no beam reinforcement 6 on the periphery of the beam medium steel 2 .

Embodiment 3

[0050] Referring to Fig. 4 of embodiment 3, the difference from embodiment 2 is that two orthogonal I-shaped steel shapes are selected for the column medium steel 1, so as to meet the needs of steel supports that can be connected in eight directions.

(1) Technical field

[0001] The invention relates to a node structure of a steel support and a steel beam column in a steel-concrete composite building. (2) Background technology

[0002] The National Gymnasium is one of the three main venues for the Beijing 2008 Olympic Games. During the Olympic Games, gymnastics competitions and handball finals will be held mainly, and wheelchair basketball competitions will be held during the Paralympic Games. Its buildings are composed of a competition hall and a warm-up hall. The competition hall can accommodate about 19,000 spectators, with a total construction area of ​​80,890m 2 , one basement and four floors above ground. The longitudinal length of the roof plane projection is 195.5m, and the horizontal width is 114m.

[0003] Steel Reinforced Concrete Composite Structure (SRC structure for short) is a main form of steel and concrete composite structure. The characteristic of the steel concrete structure is that the steel is confi...

Examples

Embodiment 1

[0038] Embodiment 1 Referring to Fig. 1 and Fig. 2, the variable cross-section transition node of the steel-concrete frame steel support structure is handed over by the column medium steel 1, the beam medium steel 2, the steel support 3, the column reinforced concrete 4, and the beam reinforced concrete 7 And poured into one, the steel support 3 is handed over to the column medium steel 1 and the beam medium steel 2, which is characterized in that:

[0039] Column main reinforcement 5 and column stirrup 10 are distributed on the outer periphery of the column medium-shaped steel 1, and some column main reinforcement 5 passes through the ribs of the curved upper flange 25, the curved lower flange 26, and the widened and variable-section upper flange 27. hole 18. The corner reinforcement 16 in the main reinforcement of the column is located at the corner.

[0040] Beam steel bars 6 are distributed on the outer periphery of the beam medium steel 2; the upper iron 14 in the beam s...

Embodiment 2

[0049] Embodiment 2 Referring to FIG. 3 , the difference from embodiment 1 is that there are no column main bars 3 and column stirrups 10 on the periphery of the column medium steel 1 , and there is no beam reinforcement 6 on the periphery of the beam medium steel 2 .

Embodiment 3

[0050] Referring to Fig. 4 of embodiment 3, the difference from embodiment 2 is that two orthogonal I-shaped steel shapes are selected for the column medium steel 1, so as to meet the needs of steel supports that can be connected in eight directions.

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