CN202176025U - Sub-floor type connection node for rectangular steel tube concrete column and floor slab - Google Patents
Sub-floor type connection node for rectangular steel tube concrete column and floor slab Download PDFInfo
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- CN202176025U CN202176025U CN2011202696692U CN201120269669U CN202176025U CN 202176025 U CN202176025 U CN 202176025U CN 2011202696692 U CN2011202696692 U CN 2011202696692U CN 201120269669 U CN201120269669 U CN 201120269669U CN 202176025 U CN202176025 U CN 202176025U
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Abstract
The utility model discloses a sub-floor type connection node for a rectangular steel tube concrete column and a floor slab. The sub-floor type connection node comprises a rectangular steel tube concrete column, a floor slab and a beam column node area. Beam longitudinal bars of the floor slab directly penetrate through the beam column node area, and column connection longitudinal bars extend in a steel tube and form a reinforcing steel bar cage with node reinforcing steel bars and node hoop bars of the node area. The manufacturing method of the sub-floor type connection node is that the node hoop bars are sleeved on a node reinforcing steel bar mesh for banding and are connected with the column connection longitudinal bars and the column connecting hoop bars to form the reinforcing steel bar cage; the beam longitudinal bars of the floor slab penetrate through the reinforcing steel bar cage for binding the beam hoop bars; concrete pouring is carried out to the steel tube, and the concrete is poured to the beam column node area; and beam concrete is poured after the steel tube column concrete is solidified. With the adoption of the sub-floor type connection node for the rectangular steel tube concrete column and the floor slab, the difficult problem of connecting the floor slab and the rectangular steel tube concrete column is well solved, the beam column in the beam column node area is communicated, so that the rigid connection of the node is ensured, the stress condition is similar to a common reinforcing steel bar concrete structure, and the force transmission is clear.
Description
Technical field
The utility model relates to the member of building field, specifically is meant branch floor-type rectangular steel-tube concrete column and building roof beam connected node.
Background technology
Steel core concrete column as a kind of combined member that has steel work and both advantages of concrete structure concurrently in application in engineering more and more widely; But node as one of part of the emphasis in the structure; Stressed and construct problem; Be not well solved yet, become " bottleneck " problem that the restriction steel core concrete column is used.
Existing steel core concrete column and building roof beam can be divided into two types of post steel pipe conitnuous forms and building roof beam conitnuous forms at the joint construction of node area.
1. the node of post steel pipe conitnuous forms:
Its main thought is: keep steel core concrete column to connect along overall height, building roof beam is connected with it from the post side.This has caused node all comparatively complicated and difficult in design, construction.
Its basic force-transmission mechanism is: mainly adopted bracket, and reinforcing ring, the concrete ring beam is worn the straight-through reinforcing bar of steel pipe, and forms such as grappling formula ground tackle are carried out the moment of flexure transmission.Shearing passes through reinforcing ring, the bearing pin bracket, and structural forms such as annular shear reinforcement are transmitted, and bonding between node area concrete and steel pipe walls and frictional force are also brought into play certain function.
This category node form exists in practical application like this or such shortcoming, and subject matter is summarized as follows:
1) simplification of node mechanical property and construction, economy can not be satisfactory to both parties: some node type, like the reinforcing ring type node, mechanical property is good, the integral rigidity of node is also high, but material usage is big, construction is complicated; Some node type, like the grappling gusset-type joint, simple structure, easy construction, also than the material saving, but its mechanical property is unsatisfactory; Anti-shear ring ring beam joint and for example, its construction is very outstanding with economically advantage, but the rigidity of its node is limited, and the service behaviour under the complex stress situation is poor;
2) influence architectural appearance and use: the structure of the node of cast-in-situ floor beam slab often has with architectural appearance and function of use and conflicts; And cause the layout of superstructure beam slab dumb; Girder system complicated layout like the twin beams node; And single beam joint makes the width of building roof beam excessive, not only increases dead load but also cause waste of material, and influences the attractive in appearance of superstructure;
3) application of node is dumb: at present applied node all only is applicable to conventional situation in the engineering, comparatively special superstructure is arranged, and like nonopiate girder system, the absolute altitude of each beam and square one not highly, its application has just received certain restriction.
2. the node of building roof beam conitnuous forms
Its main thought is: keep the continuity of concrete floor system, each floor covers at the bottom of the beam face of beam column junction and beam and is connected with steel pipe column.
This category node has solved the connectivity problem of building roof beam and steel core concrete column, but still has following problem:
1) traditional building roof beam conitnuous forms node, the ring beam of being furnished with circumferential reinforcement through setting solves because the axial bearing capacity problem that the post steel pipe breaks off or punches and reduce.For the concrete-filled circular steel tube column node, satisfy than being easier on this joint structure, and for the steel core concrete column node of rectangle or profiled-cross-section, then construction is complicated, confinement mechanism is indeterminate to adopt oval ring beam constraint.
2) influence architectural appearance and use: traditional building roof beam conitnuous forms node; And for the steel core concrete column node of rectangle or profiled-cross-section; Adopt traditional annulus beam constraint will increase node, not only increase dead load but also cause waste of material, and influence the attractive in appearance of superstructure.
Summary of the invention
The purpose of the utility model is to overcome the shortcoming and defect of above-mentioned prior art; Branch floor-type rectangular steel-tube concrete column and building roof beam connected node are provided; With respect to prior art, the utility model structured steel pipe breaks off in node area, and good economy performance, construction is convenient, power transmission is clear and definite.
The purpose of the utility model can realize through following technical scheme:
Divide floor-type rectangular steel-tube concrete column and building roof beam connected node; The rectangular steel-tube concrete column, the building roof beam of horizontal positioned, the bean column node district that comprise vertical placement; Said rectangular steel-tube concrete column and building roof beam join in the bean column node district, are provided with the post connection lengthwise rib in the said rectangular steel-tube concrete column and are connected stirrup with post; The vertical muscle of the beam of said building roof beam directly passes the bean column node district; Said bean column node district comprises that the node steel mesh reinforcement of horizontal positioned, the node stirrup that is used for fixing the node steel mesh reinforcement, the post that is used for fixing the post connection lengthwise rib connect stirrup; Said post connection lengthwise rib is extended in steel pipe and in forming reinforcing cage with the node steel mesh reinforcement in bean column node district and node stirrup.
Be provided with vertical muscle of beam and beam stirrup in the said building roof beam.
The manufacturing approach of above-mentioned minute floor-type rectangular steel-tube concrete column and building roof beam connected node, realize through following step:
Step 1: the place, pillar location that the monolayer steel pipe post is lifted the construction plane;
Step 2: the node stirrup is enclosed within the node steel mesh reinforcement and colligation is good, reconnects the post connection lengthwise rib and be connected stirrup, form reinforcing cage with post; To steel pipe interior nodes position, prop up fixing with beam reinforcing bar cage hoisting;
Step 3: the vertical muscle of the beam of building roof beam is passed reinforcing cage, the colligation beam stirrup;
Step 4: steel pipe column is carried out concrete pouring, and concreting is to the bean column node district;
Step 5: after treating the steel pipe column concrete setting, the casting beams concrete.
The utility model is compared with prior art, has following advantage and beneficial effect:
1. the utility model has well solved the be connected difficult problem of building roof beam with rectangular steel-tube concrete column; The beam column concrete in bean column node district is communicated with; Make the performance that rigidly connects of node be guaranteed, stressing conditions and ordinary reinforced concrete structure are similar, and power transmission is clear and definite;
2. the utility model work progress is similar to ordinary reinforced concrete structure, and the scene does not have the welding job of steel work, and construction is convenient;
3. the utility model member can be connected with the building roof beam of any direction, the flexible arrangement of building roof beam, and construction function request is content with very little;
4. the utility model member has saved steel connecting elementss such as reinforcing ring, punching bracket, has reduced structural cost, has good economic benefit.
5. the utility model member does not require the pillar cross sectional shape, applicable to the steel core concrete column superstructure node of various cross sectional shapes.
Description of drawings
Fig. 1 (a) is that the utility model divides floor-type rectangular steel-tube concrete column and the sectional drawing of building roof beam connected node when girder system is the quadrature system;
Fig. 1 (b) is that the utility model divides floor-type rectangular steel-tube concrete column and the plan view of building roof beam connected node when girder system is the quadrature system;
Fig. 1 (c) is that the utility model divides floor-type rectangular steel-tube concrete column and the plan view of building roof beam connected node when girder system is nonopiate system;
Fig. 2 is the manufacturing approach schematic flow sheet that the utility model divides floor-type rectangular steel-tube concrete column and building roof beam connected node.
Among the figure: rectangular steel-tube concrete column 1; Post connection lengthwise rib 2; Post connects stirrup 3; Bean column node district 4; Node steel mesh reinforcement 5; Node stirrup 6; Building roof beam 7; Beam is indulged muscle 8; Beam stirrup 9.
The specific embodiment
In order to understand the technical characterstic of this patent better, below in conjunction with accompanying drawing this patent is done explanation further, need to prove that the specific embodiment is not the restriction to this patent protection domain.
As shown in Figure 1; The utility model divides floor-type rectangular steel-tube concrete column and building roof beam connected node; The rectangular steel-tube concrete column 1, the building roof beam 7 of horizontal positioned, the bean column node district 4 that comprise vertical placement; Said rectangular steel-tube concrete column 1 joins in bean column node district 4 with building roof beam 7, is provided with post connection lengthwise rib 2 in the said rectangular steel-tube concrete column 1 and is connected stirrup 3 with post; The vertical muscle 8 of the beam of said building roof beam 7 directly passes bean column node district 4; Said bean column node district 4 comprises that the node steel mesh reinforcement 5 of horizontal positioned, the node stirrup 6 that is used for fixing node steel mesh reinforcement 5, the post that is used for fixing post connection lengthwise rib 2 connect stirrup 3; Said post connection lengthwise rib 2 is extended in steel pipe and in forming reinforcing cages with node steel mesh reinforcement in bean column node district 45 and node stirrup 6.
Be provided with vertical muscle 8 of beam and beam stirrup 9 in the said building roof beam 7.
In sum; Rectangular steel-tube concrete column 14 breaks off with building roof beam 7 junctions in the bean column node district; Make the vertical muscle 8 of beam of building roof beam 7 run through rectangular steel-tube concrete column 1 smoothly; Through connecting stirrup 3, node steel mesh reinforcement 5 by post connection lengthwise rib 2, post and being used for fixing the reinforcing cage that the node stirrup 6 of node steel mesh reinforcement 5 forms, guarantee the continuity of rectangular steel-tube concrete column 1 and building roof beam 7 power transmissions.The internal force mode that building roof beam 7 transmits to bean column node district 4 and traditional reinforced concrete post node are similar, and power transmission is direct, and mechanism is clear and definite.For the ultimate bearing capacity of joints of avoiding node area to cause owing to steel pipe breaks off descends; Through strengthening bean column node district 4 section area and arranging node steel mesh reinforcement 5 and node stirrup 6; By transverse reinforcement bean column node district 4 is retrained, guarantee the continuity of the steel pipe axial bearing capacity of rectangular steel-tube concrete column 1; Simultaneously in order to make the moment of flexure of steel core concrete column 1 and the smooth transmission of shearing; Be provided with vertical post connection lengthwise rib 2 in node area; And extension anchors in the rectangular steel-tube concrete column 1; Connect stirrup 3 at post connection lengthwise rib 2 outer cover upper props, the reinforcing cage of forming with the node stirrup 6 of node steel mesh reinforcement 5 and stationary nodes steel mesh reinforcement 5.Above-mentioned measure has guaranteed the continuity of steel pipe axial bearing capacity.
As shown in Figure 2.The manufacturing approach of above-mentioned minute floor-type rectangular steel-tube concrete column and building roof beam connected node and manufacturing approach, can realize through following steps:
Step 1: the place, pillar location that the single rectangular steel pipe column is lifted the construction plane;
Step 2: node stirrup 6 is enclosed within node steel mesh reinforcement 5, and also colligation is good, reconnects post connection lengthwise rib 2 and is connected stirrup 3 with post, forms reinforcing cage; To steel pipe interior nodes position, prop up fixing with beam reinforcing bar cage hoisting;
Step 3: the vertical muscle 8 of the beam of building roof beam 7 is passed reinforcing cage, colligation beam stirrup 9;
Step 4: the rectangle steel tubing string is carried out concrete pouring, and concreting is to bean column node district 4;
Step 5: after treating the concrete setting of rectangle steel tubing string, the casting beams concrete.
Just can realize this patent preferably as stated.
Claims (2)
1. divide floor-type rectangular steel-tube concrete column and building roof beam connected node; It is characterized in that: the rectangular steel-tube concrete column, the building roof beam of horizontal positioned, the bean column node district that comprise vertical placement; Said rectangular steel-tube concrete column and building roof beam join in the bean column node district, are provided with the post connection lengthwise rib in the said rectangular steel-tube concrete column and are connected stirrup with post; The vertical muscle of the beam of said building roof beam directly passes the bean column node district; Said bean column node district comprises that the node steel mesh reinforcement of horizontal positioned, the node stirrup that is used for fixing the node steel mesh reinforcement, the post that is used for fixing the post connection lengthwise rib connect stirrup; Said post connection lengthwise rib is extended in steel pipe and in forming reinforcing cage with the node steel mesh reinforcement in bean column node district and node stirrup.
2. according to claim 1 minute floor-type rectangular steel-tube concrete column and building roof beam connected node is characterized in that: be provided with vertical muscle of beam and beam stirrup in the said building roof beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202696692U CN202176025U (en) | 2011-07-28 | 2011-07-28 | Sub-floor type connection node for rectangular steel tube concrete column and floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202696692U CN202176025U (en) | 2011-07-28 | 2011-07-28 | Sub-floor type connection node for rectangular steel tube concrete column and floor slab |
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| CN202176025U true CN202176025U (en) | 2012-03-28 |
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| CN2011202696692U Expired - Fee Related CN202176025U (en) | 2011-07-28 | 2011-07-28 | Sub-floor type connection node for rectangular steel tube concrete column and floor slab |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352655A (en) * | 2011-07-28 | 2012-02-15 | 华南理工大学 | Multi-floor type rectangular steel pipe concrete column and floor system beam connecting node and manufacturing method thereof |
-
2011
- 2011-07-28 CN CN2011202696692U patent/CN202176025U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352655A (en) * | 2011-07-28 | 2012-02-15 | 华南理工大学 | Multi-floor type rectangular steel pipe concrete column and floor system beam connecting node and manufacturing method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20140728 |
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| EXPY | Termination of patent right or utility model |