CN214994596U - Connecting beam structure - Google Patents
Connecting beam structure Download PDFInfo
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- CN214994596U CN214994596U CN202121621179.4U CN202121621179U CN214994596U CN 214994596 U CN214994596 U CN 214994596U CN 202121621179 U CN202121621179 U CN 202121621179U CN 214994596 U CN214994596 U CN 214994596U
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Abstract
The utility model discloses a connecting beam structure, which comprises a left wall limb, a right wall limb, a connecting beam connected between the wall limbs, and a cross hidden support arranged in the connecting beam; the cross hidden support is two support units, each support unit comprises a steel core plate and reinforcing steel bars fixedly arranged on one side or two side wall surfaces of the steel core plate, and the two support units are arranged in an X shape. The utility model discloses do not receive the restriction of edge member form, and use through steel sheet and reinforcing bar complex, improved the bonding force of steel sheet and concrete, improved even the whole anti-seismic performance of roof beam.
Description
Technical Field
The utility model belongs to the building engineering field especially relates to a link roof beam structure.
Background
In the frame core tube or frame wall limb structure, the connecting beam often causes shear damage under the action of earthquake due to high rigidity. The existing method generally sets a reinforced concrete crossed hidden support mode, and the reinforced concrete crossed hidden support is that crossed reinforced concrete hidden beams are arranged in reinforced concrete beams, so that the construction is extremely difficult, and the quality is difficult to ensure.
Chinese utility model patent CN207794355U discloses an adopt even beam construction that X shaped steel board was strengthened, its principle is that the steel sheet that adopts to distribute for "X" shape resists moment of flexure and shear force in the load effect even beam down, can provide effective sectional area on destroying the interface and be used for resisting the pulling force that produces to and provide effective cross-section between the crack of oblique diagonal angle parallel direction and resist the pulling force and follow the shear force of staggering between the crack. The form of the single steel plate is based on connection with a specific section steel concrete edge member, connection with a common edge member cannot be realized, and the steel plate and the reinforced concrete are easy to peel off when the built-in section steel is pulled.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a link beam structure to solve the steel sheet and alternately secretly prop and receive the technical problem that the binding power is low of marginal component form restriction and steel sheet alternately secretly propping.
In order to achieve the above purpose, the specific technical solution of the present invention is as follows:
a coupling beam structure comprises a left wall limb, a right wall limb, a coupling beam connected between the wall limbs, and crossed hidden braces arranged in the coupling beam;
the cross hidden support is two support units, each support unit comprises a steel core plate and reinforcing pieces fixedly arranged on one side or two side wall surfaces of the steel core plate, and the two support units are arranged in an X shape.
Further, the reinforcing piece is a twisted steel bar, and the twisted steel bar is welded with the steel core plate and extends along the length direction of the steel core plate.
Therefore, the utility model strengthens the connecting beam by arranging the crossed hidden brace which is formed by compounding the deformed steel bars and the steel plate core plate, improves the overall anti-seismic performance of the connecting beam by utilizing the better tensile strength of the steel plates, improves the bonding force between the steel plates and the reinforced concrete by the steel bars, and plays a role in achieving common stress together with the concrete, thereby avoiding the steel plates and the reinforced concrete from being peeled off when the built-in section steel is pulled; the steel bar bears the tension outside the steel core plate, and the tensile strength of the steel is fully utilized; the reinforcing steel bar core plate is stable in compression; the steel amount is equivalent to that of the common reinforced concrete hidden support, and the steel amount is not limited by the form of the edge member.
Furthermore, a connecting beam steel bar is arranged in the connecting beam, and the crossed hidden support is anchored with the connecting beam steel bar.
Furthermore, a plurality of holes are formed in the steel core plate; as the arrangement of the steel core plate needs to avoid the stirrups or the tie bars, a plurality of holes are arranged to facilitate the stirrups or the tie bars of the wall limb edge member to pass through.
Further, the cross braces are symmetrical about a horizontal centerline and symmetrical about a vertical centerline.
In addition, a group of or a plurality of groups of the crossed hidden braces are arranged among the wall limbs in parallel; when the connecting beam is wider, a plurality of groups of crossed hidden supports can be arranged in parallel.
Furthermore, the two support units are not in one plane.
The utility model has the advantages of it is following: the connecting beam structure is not limited by the form of edge members, can be assembled and constructed on the spot in factory, and improves the bonding force between the steel plate and concrete and the overall anti-seismic performance of the connecting beam by using the steel plate and the reinforcing steel bars in a composite way.
Drawings
Fig. 1 is a schematic view of a coupling beam structure of the present invention;
FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 1 (first embodiment);
FIG. 4 is a sectional view taken along line A-A of FIG. 1 (second embodiment);
the notation in the figure is: 1. crossed hidden bracing; 11. a steel core plate; 12. a reinforcement; 2. connecting the beams; 3. wall limbs; 4. connecting beam reinforcing steel bars; 5. and (4) a hole.
Detailed Description
For better understanding of the objects, structure and functions of the present invention, the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-2, the utility model discloses a link roof beam structure about including wall limb 3 and connect link roof beam 2 and alternately secretly prop 1 between the wall limb 3, link and arrange in 2 roof beam even roof beam reinforcing bar 4, alternately secretly prop 1 with link roof beam reinforcing bar 4 anchor. The crossed hidden support 1 is composed of two support units which are arranged in an X shape, wherein the two support units are not in contact with each other in tandem; the side wall surface of the supporting unit is parallel to the wall surface of the wall limb 3; the supporting unit comprises a steel core plate 11 and reinforcing steel bars, the reinforcing steel bars are preferably threaded reinforcing steel bars, and the threaded reinforcing steel bars can enhance the bonding force between the crossed steel core plate and concrete; the twisted steel bars are welded on one side or two side wall surfaces of the steel core plate 11 and extend along the length direction of the steel core plate 11, and the welding of the steel bars adopts an intermittent welding mode; as shown in fig. 2, fig. 2 is a sectional view taken along line B-B of fig. 1, and two reinforcing bars are symmetrically welded to two side walls of the steel core plate 11 in this embodiment.
The crossed hidden support 1 is symmetrical about a horizontal center line and symmetrical about a vertical center line; in order to facilitate the passing of the hooping or the lacing of the wall limb edge component, a plurality of holes 5 are arranged on the steel core plate 11.
As shown in fig. 3, fig. 3 is a sectional view taken along the line a-a of fig. 1, and as a first embodiment of the present invention, when the width of the coupling beam 2 is 400mm ≤ b1 ≤ 600mm, a set of the cross braces 1 is provided; as shown in fig. 4, the cross section a-a of fig. 4 and fig. 1 is taken as a second embodiment of the present invention, when the width b2 of the coupling beam 2 is larger than 600mm, two or more sets of the cross braces 1 can be arranged side by side.
The utility model discloses an assembly type construction, support unit are at mill or on-the-spot preparation, and support unit is at steel construction processing back, on-the-spot hoist and mount, fixed. And fixing the manufactured support unit in the concrete beam. The construction sequence is as follows: binding the connecting beam reinforcing steel bars 4, installing the supporting units manufactured in a factory, and pouring concrete. The whole construction is convenient, the labor cost is saved, and the construction period is shortened.
The steel core plate 11 can adopt Q235, Q355, Q420 and other strength steel, the advantage of high tensile strength of the section steel is fully exerted, and when the steel core plate is pulled, the steel core plate is anchored into the wall limb 3 according to a tensile structure; the support core may also be used to enhance the overall performance of the rebar without regard to tensile. At the moment, the steel core plate is equivalent to the stirrup action of the common reinforced concrete hidden support, and the steel core plate can be anchored into the wall limb according to a shear-resistant structure.
The utility model discloses after the demonstration research, consider that whole shear forces should be undertaken by the composite support during the design, every dark props and should undertake whole shear forces. The calculation principle is as follows:
under permanent, transient design conditions:
(A+As)≥Vb/(fsinα+fysinα)
earthquake design conditions:
(A+As)≥γREVb/(fsinα+fysinα)
wherein A is the cross-sectional area of the single-limb core plate; alpha is an included angle between the support and the horizontal line; a. thesThe area of the section of the steel bar on one side is shown; f is the design value of the tensile strength of the steel plate; fy is the design value of the tensile strength of the steel bar; vbThe design value of the shearing force of the coupling beam is obtained; gamma rayREThe shock resistance adjustment coefficient of the bearing capacity of the component.
Moment of flexure and shear force are undertaken to prior art's X steel sheet, and the design formula is complicated loaded down with trivial details, the utility model discloses a research, the atress is clear reasonable, and the formula is simple.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.
Claims (7)
1. A coupling beam structure comprises a left wall limb and a right wall limb (3), a coupling beam (2) connected between the wall limbs (3), and a cross hidden support (1) arranged in the coupling beam (2); the method is characterized in that:
the cross hidden support (1) is composed of two support units, each support unit comprises a steel core plate (11) and reinforcing pieces (12) fixedly arranged on one side or two side wall surfaces of the steel core plate (11), and the two support units are arranged in an X shape.
2. The coupling beam structure according to claim 1, wherein the reinforcement (12) is a rebar welded to the core plate (11) and extending along the length of the core plate (11).
3. The coupling beam structure according to claim 1, characterized in that coupling beam reinforcing steel bars (4) are arranged in the coupling beam (2), and the cross hidden supports (1) are anchored with the coupling beam reinforcing steel bars (4).
4. Coupling beam structure according to claim 1 or 2, characterized in that the steel core plate (11) is provided with a plurality of holes (5).
5. The coupling beam structure according to claim 1, characterized in that the cross braces (1) are symmetrical about a horizontal center line and symmetrical about a vertical center line.
6. The coupling beam structure according to claim 1, characterized in that one or more groups of the cross hidden braces (1) are arranged between the wall limbs (3).
7. The coupling beam structure according to claim 1, wherein the two support units are not in one plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121621179.4U CN214994596U (en) | 2021-07-16 | 2021-07-16 | Connecting beam structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121621179.4U CN214994596U (en) | 2021-07-16 | 2021-07-16 | Connecting beam structure |
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| Publication Number | Publication Date |
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| CN214994596U true CN214994596U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121621179.4U Active CN214994596U (en) | 2021-07-16 | 2021-07-16 | Connecting beam structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288289A (en) * | 2022-07-16 | 2022-11-04 | 中信建筑设计研究总院有限公司 | Large eccentric beam column reinforcing node without armpit and design method |
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2021
- 2021-07-16 CN CN202121621179.4U patent/CN214994596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288289A (en) * | 2022-07-16 | 2022-11-04 | 中信建筑设计研究总院有限公司 | Large eccentric beam column reinforcing node without armpit and design method |
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