CN2700436Y - Novel reinforced concrete beam - Google Patents
Novel reinforced concrete beam Download PDFInfo
- Publication number
- CN2700436Y CN2700436Y CN 200420050856 CN200420050856U CN2700436Y CN 2700436 Y CN2700436 Y CN 2700436Y CN 200420050856 CN200420050856 CN 200420050856 CN 200420050856 U CN200420050856 U CN 200420050856U CN 2700436 Y CN2700436 Y CN 2700436Y
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- steel
- concrete
- concrete beam
- grid
- steel bar
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- 239000011150 reinforced concrete Substances 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 239000004567 concrete Substances 0.000 claims abstract description 40
- 230000002787 reinforcement Effects 0.000 claims abstract description 20
- 238000004049 embossing Methods 0.000 claims abstract description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 abstract description 14
- 230000002349 favourable effect Effects 0.000 abstract 1
- 210000003205 muscle Anatomy 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a novel reinforced concrete beam which is composed of a concrete beam, a plurality of hoop reinforcements installed in the concrete beam, a plurality of bearing rods and a plurality of tension ribs. The utility model is characterized in that the tension ribs are made of steel rod plates whose cross sections are rectangular, and the ends of the tension ribs are connected by end steel plates. Because reinforcing bars with circular cross-sections are replaced by the steel rod plates with rectangular cross-sections and the width of the steel rod plate is smaller than the diameter of the circular cross-section, the distance between the steel plates is larger than the distance between the existing reinforcing bars with circular cross-sections, and the concrete is easily poured in the bottom of the beam, so the appearing of the voids and pits at the bottom of the beam is avoided. Because longitudinal reinforcements and transversal frame-shaped reinforcing bars at both ends are soldered, the steel bar mound is formed at the end, which makes the concrete poured successfully and ensures the end quality of the beam. In the condition of same steel area, the surface area of the steel rod plates with two embossing sides is larger than the surface area of the steel bar, which is favorable to combining the concrete with the steel bar.
Description
Technical field
The utility model relates to a kind of building girder, particularly a kind of new reinforcing steel bar concrete beam.
Background technology
Traditional steel concrete Liangqi structure as shown in Figure 1, 2, be a plurality of stirrups 1 of landscape configuration and multilayer longitudinal reinforcement 2,3 in concrete beam, the number of plies of longitudinal reinforcement is relevant with the stressing conditions of beam with the arrangement of reinforcement number in every layer, the above longitudinal reinforcement of natural axis that is positioned at beam is called bearing rod (number in the figure is 2), and the following longitudinal reinforcement of natural axis that is positioned at beam is called and is subjected to lacing wire (number in the figure is 3).For guaranteeing that reinforcing bar is in the anchorage length of beam end in the beam, longitudinal reinforcement 2,3 all need be made crotch and handle, and all curved 90 degree in two ends become Π shape.All arrangements of reinforcement all adopt round steel or screw-thread steel to make.There is following deficiency in existing reinforced concrete beam:
1, according to the code requirement of country, the bar spacing of reinforced concrete beam all has regulation, when the cross section of beam higher, the arrangement of reinforcement number of plies more for a long time, uncompacted phenomenon often appears in the concrete pouring of beam, and the bottom of the beam behind the Cheng Liang voids and pits occurs and is difficult to handle, even treatment effect is not good yet.
2, for guaranteeing that reinforcing bar is in the anchorage length of beam end in the beam, the crotch at longitudinal reinforcement 2,3 two ends forms the reinforcing bar heap in the end of beam, does not only satisfy the structure requirement, and concrete can't be poured into a mould, and the end mass of beam is difficult to guarantee.
Summary of the invention
The purpose of this utility model is at the above-mentioned deficiency of prior art, to provide a kind of bottom of beam voids and pits not occur, the end mass easy to reach new reinforcing steel bar concrete beam of beam.
New reinforcing steel bar concrete beam provided by the utility model is realized by following technical scheme.
A kind of new reinforcing steel bar concrete beam comprises concrete beam, is disposed at a plurality of stirrups in the concrete beam, many bearing rods and many are subjected to lacing wire; It is characterized in that: these many are subjected to lacing wire is to be that the grid of steel bars of rectangle is made by the cross section, and its end connects with the end steel plate.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents:
Described new reinforcing steel bar concrete beam is characterized in that: described cross section is that the grid of steel bars of rectangle is two-sided embossing grid of steel bars.
Described new reinforcing steel bar concrete beam is characterized in that: described cross section is that the grid of steel bars of rectangle is a single face embossing grid of steel bars.
Described new reinforcing steel bar concrete beam is characterized in that: in the end of beam, and longitudinal reinforcement and the welding of end steel plate.
Described new reinforcing steel bar concrete beam is characterized in that: in the end of beam, longitudinal reinforcement is connected with pin with the end steel plate.
Advantage of the present utility model is:
The present invention changes the steel bar stress of circular cross-section into the grid of steel bars of square-section, because the width of grid of steel bars is much smaller than the diameter of circular cross-section, make spacing between the steel plate greater than the spacing between the existing circular cross-section reinforcing bar, make concrete can successfully pour into the beam bottom, voids and pits appears in the bottom of avoiding into the beam back rest; The end of beam, longitudinal reinforcement connects with the end steel plate, has solved the end and has formed the reinforcing bar heap, makes concrete pouring smooth, has guaranteed the end mass of beam; Under equal condition with the steel area, adopt the surface area of the surface area of two-sided embossing grid of steel bars much larger than reinforcing bar, the bonded area of concrete and reinforcing bar is improved greatly, thereby strengthened the bond stress of concrete stressed arrangement of reinforcement.
For architectural feature of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows:
Description of drawings
Fig. 1 is the front view of existing reinforced concrete beam.
Fig. 2 is the lateral view of existing reinforced concrete beam.
Fig. 3 is a front view of the present utility model.
Fig. 4 is a lateral view of the present utility model.
Fig. 5 is the connected mode one of the end of the utility model beam.
Fig. 6 is the connected mode two of the end of the utility model beam.
The specific embodiment
Shown in Fig. 3,4 a kind of new reinforcing steel bar concrete beam provided by the utility model, comprising: concrete beam 5, be disposed at a plurality of stirrups 1 in the concrete beam, many bearing rods 2 and many and be subjected to lacing wire 3 '; Characteristics of the present utility model are: these many are subjected to lacing wire 3 ' is to be that the grid of steel bars of rectangle is made by the cross section.The tensile reinforcement of circular cross-section is changed into the grid of steel bars of square-section, because the width of grid of steel bars is much smaller than the diameter of circular cross-section, make spacing between the steel plate greater than the spacing between the existing circular cross-section reinforcing bar, make concrete can successfully pour into the beam bottom, voids and pits appears in the bottom of avoiding into the beam back rest.
New reinforcing steel bar concrete beam of the present utility model, described cross section are that the grid of steel bars of rectangle is two-sided embossing grid of steel bars, or single face embossing grid of steel bars, or are pressed with the grid of steel bars or the ordinary steel batten of pit or distension bag.Wherein, under equal condition, adopt the surface area of the surface area of two-sided embossing grid of steel bars, the bonded area of concrete and reinforcing bar is improved greatly, strengthened the bond stress of concrete the tension arrangement of reinforcement much larger than reinforcing bar with the steel area with two-sided embossing grid of steel bars the best.End in beam connects with end steel plate 4, shown in Fig. 5,6.Wherein, in the specific embodiment shown in Figure 5, longitudinal reinforcement 3 ' and 4 welding of end steel plate are perforates on end steel plate 4, with longitudinal tensile muscle 3 ' by welding again after passing in the hole.In specific embodiment shown in Figure 6, described longitudinal tensile muscle 3 ' is connected with pin 5 with the end steel plate, is perforate on longitudinal tensile muscle 3 ' two ends and end steel plate 4, and longitudinal tensile muscle 3 ' is firm by passing in the hole with back pin 5 pins.The end of adopting welding or pin joint to solve beam forms the reinforcing bar heap, makes concrete pouring smooth, has guaranteed the end mass of beam.
The above only is the utility model specific embodiment; everyly be familiar with this skill personage and make various modifications or change very easily in view of the above; therefore, all equivalence replacements that the utility model claim spirit is done that do not break away from all should be included in this patent protection domain.
Claims (6)
1, a kind of new reinforcing steel bar concrete beam comprises concrete beam, is disposed at a plurality of stirrups in the concrete beam, many bearing rods and many are subjected to lacing wire; It is characterized in that: these many are subjected to lacing wire is to be that the grid of steel bars of rectangle is made by the cross section, and its end connects with the end steel plate.
2, new reinforcing steel bar concrete beam according to claim 1 is characterized in that: described cross section is that the grid of steel bars of rectangle is two-sided embossing grid of steel bars.
3, new reinforcing steel bar concrete beam according to claim 1 is characterized in that: described cross section is that the grid of steel bars of rectangle is a single face embossing grid of steel bars.
4, new reinforcing steel bar concrete beam according to claim 1 is characterized in that: described cross section is that the grid of steel bars of rectangle is a grid of steel bars.
5, new reinforcing steel bar concrete beam according to claim 1 is characterized in that: in the end of beam, and longitudinal reinforcement and the welding of end steel plate.
6, new reinforcing steel bar concrete beam according to claim 1 is characterized in that: in the end of beam, longitudinal reinforcement is connected with pin with the end steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050856 CN2700436Y (en) | 2004-05-10 | 2004-05-10 | Novel reinforced concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420050856 CN2700436Y (en) | 2004-05-10 | 2004-05-10 | Novel reinforced concrete beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700436Y true CN2700436Y (en) | 2005-05-18 |
Family
ID=34777016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420050856 Expired - Fee Related CN2700436Y (en) | 2004-05-10 | 2004-05-10 | Novel reinforced concrete beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700436Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061450A (en) * | 2012-12-29 | 2013-04-24 | 华北水利水电学院 | High-strength reinforcing steel bar self-compaction steel fiber ultrahigh-strength concrete transfer girder |
| CN101885199B (en) * | 2009-05-14 | 2014-07-02 | 国家林业局北京林业机械研究所 | Method for manufacturing bamboo original-state multidirectional recombined pre-stress structural material |
-
2004
- 2004-05-10 CN CN 200420050856 patent/CN2700436Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885199B (en) * | 2009-05-14 | 2014-07-02 | 国家林业局北京林业机械研究所 | Method for manufacturing bamboo original-state multidirectional recombined pre-stress structural material |
| CN103061450A (en) * | 2012-12-29 | 2013-04-24 | 华北水利水电学院 | High-strength reinforcing steel bar self-compaction steel fiber ultrahigh-strength concrete transfer girder |
| CN103061450B (en) * | 2012-12-29 | 2015-03-18 | 青海民族大学 | High-strength reinforcing steel bar self-compaction steel fiber ultrahigh-strength concrete transfer girder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |