CN210032337U - Section steel concrete composite beam - Google Patents
Section steel concrete composite beam Download PDFInfo
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- CN210032337U CN210032337U CN201920457692.0U CN201920457692U CN210032337U CN 210032337 U CN210032337 U CN 210032337U CN 201920457692 U CN201920457692 U CN 201920457692U CN 210032337 U CN210032337 U CN 210032337U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 113
- 239000010959 steel Substances 0.000 title claims abstract description 113
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 239000004567 concrete Substances 0.000 title claims abstract description 15
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 10
- 230000002787 reinforcement Effects 0.000 claims abstract description 8
- 210000003205 muscle Anatomy 0.000 claims description 25
- 238000004873 anchoring Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 210000003414 extremity Anatomy 0.000 description 11
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a section steel concrete composite beam, which comprises a longitudinally extending I-steel, a plurality of main ribs, a plurality of transverse stirrups and a concrete layer; the I-steel is positioned in the center, the main reinforcements are arranged on the periphery, and each stirrup comprises a closed stirrup hooped outside all the main reinforcements; the top surface and the bottom surface of the upper flange plate of the I-shaped steel are respectively welded with a first longitudinal angle steel and a second longitudinal angle steel, the top surface and the bottom surface of the lower flange plate of the I-shaped steel are respectively welded with a third longitudinal angle steel and a fourth longitudinal angle steel, each stirrup further comprises a plurality of vertical combined ribs, and each vertical combined rib consists of an upper short rib, a middle tie rib and a lower short rib which are positioned in the same vertical column; the two ends of the upper short rib are respectively hooked with the through holes of the top main rib and the first angle steel, the two ends of the middle tie rib are respectively hooked with the through holes of the second angle steel and the third angle steel, and the lower short rib is respectively hooked with the through hole of the fourth angle steel and the bottom main rib. The steel reinforced concrete composite beam can ensure the width of the joist steel and does not need to punch holes on the joist steel.
Description
Technical Field
The utility model relates to a building structure construction technical field among the civil engineering specifically says a shaped steel concrete composite beam.
Background
The steel reinforced concrete composite beam is an independent structural form for anchoring I-steel in a reinforced concrete beam. Because the I-shaped steel is added in the reinforced concrete beam, the strength and the ductility are improved; the section steel, the steel bar and the concrete are integrated, so that the combined beam has the advantages of large bearing capacity, large rigidity and good anti-seismic performance compared with the traditional reinforced concrete beam; compared with a steel structure, the fireproof performance, local stability and overall stability of the steel structure are obviously better. Therefore, the steel reinforced concrete composite beam is popularized and applied more and more in the industry.
The steel reinforced concrete composite beam in the prior art comprises longitudinally extending I-shaped steel, a plurality of main reinforcements, a plurality of transverse stirrups and a concrete layer for anchoring and wrapping the steel reinforced and the reinforcements; from the longitudinal section, the I-steel is in the center, the main rib is arranged at the periphery of the I-steel for one circle, each stirrup corresponds to different limb numbers according to different section widths, if the section width is less than 600mm, two limb hoops or four limb hoops are generally adopted, and when the section width exceeds 600mm, six limb hoops or eight limb hoops are required to meet the design requirement.
The concept is popularized here, taking six limb hoops as an example, on the same section, three closed hoops are staggered with each other, and there are six vertical tie bars seen from the height direction, so the concept is called six limb hoops. The application relates to the situation that when the section width is larger and exceeds 600mm, six-limb hoops, eight-limb hoops or more than six-limb hoops are needed.
In actual construction, in order to avoid collision between the I-steel and the vertical tie bars of the multi-limb hoop, the I-steel with the smaller width of the flange plate is generally adopted, the vertical tie bars of the multi-limb hoop are avoided in a mode of reducing the width of the I-steel, but the strength and the performance of the I-steel are reduced due to too small width, and then the strength and the performance of the final composite beam are reduced. Of course, it is also proposed that holes are formed in the upper flange plate and the lower flange plate of the i-beam, and the vertical tie bars of the multi-limb hoop pass through the holes, but the hole punching operation is complex, so that the field construction workload can be increased, more importantly, the i-beam can be damaged due to frequent hole punching, and the strength and the performance of the i-beam and the combined beam can be reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can guarantee the I-steel width and need not to punch to the I-steel when cross sectional dimension is great, can realize the shaped steel concrete composite beam of many limbs hoop effect simultaneously.
The utility model provides a technical solution, which comprises a longitudinally extending I-steel, a plurality of main ribs, a plurality of transverse stirrups and a concrete layer for anchoring and wrapping the I-steel, the main ribs and the stirrups; the I-steel is positioned in the center, the main ribs are distributed in a circle on the periphery of the I-steel, and each stirrup comprises a closed stirrup hooped outside all the main ribs; the top surface and the bottom surface of the I-steel upper flange plate are respectively welded with a first longitudinal angle steel and a second longitudinal angle steel, the top surface and the bottom surface of the I-steel lower flange plate are respectively welded with a third longitudinal angle steel and a fourth longitudinal angle steel, and vertical plates of the four kinds of angle steels are respectively provided with a through hole; each stirrup also comprises a plurality of vertical combined ribs, and each vertical combined rib consists of an upper short rib, a middle tie rib and a lower short rib which are positioned in the same vertical row; the two ends of the upper short rib are respectively hooked with the through holes of the top main rib and the first angle steel, the two ends of the middle tie rib are respectively hooked with the through holes of the second angle steel and the third angle steel, and the lower short rib is respectively hooked with the through hole of the fourth angle steel and the bottom main rib.
Compared with the prior art, the utility model, shaped steel concrete composite beam has following advantage and beneficial effect.
Firstly, the structure can be provided with a plurality of vertical combined ribs according to the width requirement, and the structure is objectively and completely equal to the effect of a constraint drawknot hoop sleeve of a six-limb hoop, an eight-limb hoop and an upper limb hoop; moreover, each vertical combined rib is hooked with the main rib and the two flange plates of the I-shaped steel in a three-section mode respectively, so that the problem of interference collision between a limb hoop and the flange plates of the I-shaped steel in the prior art is solved, the width of the flange plates of the I-shaped steel does not need to be controlled for avoiding the limb hoop like the prior art, the width of the I-shaped steel of the combined beam can be widened as required, and the strength and the performance of the I-shaped steel and the combined beam are improved; moreover, the I-shaped steel does not need to be punched, so that the strength of the I-shaped steel cannot be reduced due to damage; moreover, the welding of the angle steel on the flange plate of the I-shaped steel can be completed in advance in engineering, so that during site construction, only the short ribs and the tie ribs need to be hooked, and the site construction process is convenient and fast.
Preferably, the through holes on the second angle steel and the third angle steel are longitudinal kidney-shaped holes, each middle tie bar is composed of an upper hook bar, a middle sleeve and a lower hook bar, the lower section of the upper hook bar and the upper section of the lower hook bar are provided with external threads which are opposite to each other, the upper section and the lower section of the central hole of the middle sleeve are also provided with internal threads which are opposite to each other, the lower section of the upper hook bar is screwed with the upper section of the central hole of the middle sleeve, and the upper section of the lower hook bar is screwed with the lower section of the central hole of the middle sleeve; like this, the vertical laying in waist type hole provides flexible surplus for well drawknot muscle, can set up the initial length of well drawknot muscle to slightly long, and the convenience is emboliaed through two upper and lower waist type holes, then rotatory well sleeve for collude the muscle on and collude the muscle down and contract to well sleeve is inside simultaneously, and the drawknot muscle improves the tension and the wholeness of whole vertical combination muscle in the tensioning, also is exactly the drawknot effect that improves the limb hoop, finally further improves the intensity and the performance of combination beam.
Drawings
Fig. 1 is a schematic sectional structure diagram of the steel reinforced concrete composite beam of the present invention.
Fig. 2 is a schematic structural diagram of a middle tie bar of the steel reinforced concrete composite beam of the present invention.
The I-steel shown in the figure 1, 1.1, upper flange plate, 1.2, lower flange plate, 2, main rib, 3, concrete layer, 4, closed hoop, 5, first angle steel, 6, second angle steel, 7, third angle steel, 8, fourth angle steel, 9, vertical combined rib, 9.1, upper short rib, 9.2, middle tie rib, 9.2.1, upper hook rib, 9.2.2, middle sleeve, 9.2.3, lower hook rib, 9.3, lower short rib, 10, waist-shaped hole.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
As shown in fig. 1 and 2, the utility model discloses shaped steel concrete composite beam, it includes I-steel 1 and many main muscle 2, horizontal multichannel stirrup of longitudinal extension and the concrete layer 3 of anchor parcel above-mentioned I-steel 1, main muscle 2 and stirrup. The longitudinal direction is the length direction of the finger, and the transverse direction is the width direction of the beam.
The I-steel 1 is located at the center, the main ribs 2 are distributed around the I-steel 1 for one circle, namely, a row of top main ribs 2 are distributed near the top surface of the beam, a row of bottom main ribs 2 are distributed near the bottom surface of the beam, two rows of side main ribs 2 are distributed on the left side and the right side, and the height of each side main rib 2 towards the middle is also called as a waist rib.
A plurality of first angle steels 5 are welded on the top surface of an upper flange plate 1.1 of an I-steel 1 side by side, a plurality of second angle steels 6 are welded on the bottom surface of the upper flange plate 1.1 of the I-steel 1 side by side, a plurality of third angle steels 7 are welded on the top surface of a lower flange plate 1.2 of the I-steel 1 side by side, a plurality of fourth angle steels 8 are welded on the bottom surface of the lower flange plate 1.2 of the I-steel 1 side by side, the four kinds of angle steels all extend along the longitudinal direction, namely the length direction of the beam, and through holes are formed in vertical plates of the four kinds of.
To state a concept, a stirrup is a collection of all stirrups that lie in the same widthwise cross section of the beam. Each stirrup comprises a closed hoop 4 hooped outside all the main reinforcements 2 and a plurality of vertical combined reinforcements 9. Each vertical combined rib 9 consists of an upper short rib 9.1, a middle tie rib 9.2 and a lower short rib 9.3 which are positioned in the same vertical column; every 9.1 both ends of going up short muscle are respectively with a top owner muscle 2 and the through-hole hook of a first angle steel 5, and every 9.2 both ends of drawknot muscle are respectively with the through-hole hook of a second angle steel 6 and a third angle steel 7, and every 9.3 short muscle are respectively with the through-hole of a fourth angle steel 8 and the hook of a bottom owner muscle 2.
The middle tie bar 9.2 in this embodiment may be formed by bending a complete steel bar at both ends, and of course, the following segmented structure as shown in fig. 2 may also be adopted.
Through-hole on second angle steel 6 and the third angle steel 7 all can set up to fore-and-aft waist shape hole 10, every well drawknot muscle 9.2 colludes muscle 9.2 by last, well sleeve 9.2.2 colludes muscle 9.2.3 down and constitutes, it is equipped with the external screw thread that each other is reverse to collude the muscle 9.2.1 hypomere and collude the muscle 9.2.3 upper segment down to go up to collude the muscle 9.2.1 hypomere, the internal screw thread that each other is reverse is also attacked to the upper segment and the hypomere of well sleeve 9.2.2's centre bore, collude muscle 9.2.3 upper segment and well sleeve 9.2.2 centre bore hypomere and revolve the closure down.
Claims (2)
1. A steel reinforced concrete composite beam comprises a longitudinally extending I-steel (1), a plurality of main reinforcements (2), a plurality of transverse stirrups and a concrete layer (3) for anchoring and wrapping the I-steel (1), the main reinforcements (2) and the stirrups; the I-steel (1) is positioned in the center, the main ribs (2) are distributed in a circle on the periphery of the I-steel (1), and each stirrup comprises a closed hoop (4) hooped outside all the main ribs (2); the method is characterized in that: longitudinal first angle steel (5) and second angle steel (6) are respectively welded on the top surface and the bottom surface of an upper flange plate (1.1) of the I-shaped steel (1), longitudinal third angle steel (7) and fourth angle steel (8) are respectively welded on the top surface and the bottom surface of a lower flange plate (1.2) of the I-shaped steel (1), and through holes are formed in vertical plates of the four angle steels; each stirrup also comprises a plurality of vertical combined ribs (9), and each vertical combined rib (9) consists of an upper short rib (9.1), a middle tie rib (9.2) and a lower short rib (9.3) which are positioned in the same vertical column; go up short muscle (9.1) both ends and hook with the through-hole of top main muscle (2) and first angle steel (5) respectively, well drawknot muscle (9.2) both ends hook with the through-hole of second angle steel (6) and third angle steel (7) respectively, lower short muscle (9.3) hook with the through-hole of fourth angle steel (8) and bottom main muscle (2) respectively.
2. The section steel concrete composite beam according to claim 1, wherein: the through holes in the second angle steel (6) and the third angle steel (7) are longitudinal kidney-shaped holes (10), each middle tie bar (9.2) is composed of an upper hook bar (9.2.1), a middle sleeve (9.2.2) and a lower hook bar (9.2.3), the lower section of the upper hook bar (9.2.1) and the upper section of the lower hook bar (9.2.3) are provided with external threads which are opposite to each other, the upper section and the lower section of the center hole of the middle sleeve (9.2.2) are also provided with internal threads which are opposite to each other, the lower section of the upper hook bar (9.2.1) is screwed with the upper section of the center hole of the middle sleeve (9.2.2), and the upper section of the lower hook bar (9.2.3) is screwed with the lower section of the center hole of the middle sleeve (9.2.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920457692.0U CN210032337U (en) | 2019-04-06 | 2019-04-06 | Section steel concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920457692.0U CN210032337U (en) | 2019-04-06 | 2019-04-06 | Section steel concrete composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210032337U true CN210032337U (en) | 2020-02-07 |
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ID=69358378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920457692.0U Expired - Fee Related CN210032337U (en) | 2019-04-06 | 2019-04-06 | Section steel concrete composite beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210032337U (en) |
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2019
- 2019-04-06 CN CN201920457692.0U patent/CN210032337U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |