CN101265738A - Reinforced concrete precast member containing steel plate - Google Patents
Reinforced concrete precast member containing steel plate Download PDFInfo
- Publication number
- CN101265738A CN101265738A CNA2007100380320A CN200710038032A CN101265738A CN 101265738 A CN101265738 A CN 101265738A CN A2007100380320 A CNA2007100380320 A CN A2007100380320A CN 200710038032 A CN200710038032 A CN 200710038032A CN 101265738 A CN101265738 A CN 101265738A
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- steel plate
- reinforced concrete
- protective layer
- concrete
- precast member
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Abstract
The invention relates to a reinforced concrete prefabricated part containing a steel plate, and belongs to building structure members. The prefabricated part comprises a plurality of steel bars and an external concrete protective layer with enough thickness thereof. The prefabricated part is characterized by further comprising the steel plate composed of the steel plate and epoxy group pasted resin. The steel plate consisted of the steel plate and epoxy group pasted resin can be positioned in the concrete protective layer, the steel plate thereof is fixed on the steel bars or adhered to the surface of the concrete protective layer. Compared with the prior art, since the steel plate has the advantages of higher axial tensile strength, smaller strength-weight ratio, high durability, corrosion resistance and high aging and fatigue resistance, the adopted reinforced concrete prefabricated parts containing steel plates are capable of adhering together to the concrete protective layer by means of the epoxy group pasted resin in the positions subject to damage or crack of the prefabricated parts, thereby improving partial shearing, tension and fatigue resistance of the prefabricated parts, improving the ductility of the members, increasing the bearing capacity of the members and satisfying the use security obviously.
Description
(1) technical field:
The present invention relates to a kind of reinforced concrete precast member that contains steel plate, belong to the fabric structure member.
(2) background technology:
In the prior art, reinforced concrete precast member is formed common stressed structural member by reinforcing bar and two kinds of materials of concrete.It is born pressure, bears pulling force with reinforcing bar with concrete, so reinforced concrete precast member can utilize the mechanical property of reinforcing bar and these two kinds of materials of concrete more fully.But the crack resistance of ordinary reinforced concrete prefabricated component is poor, often occurs the crack when normally using, and this is very unfavorable to reinforced concrete precast member, and the crack exists can reduce impervious and freezing tolerance, and causes corrosion of steel bar, influences the durability of works; The work of repairing and reinforcing is also relatively more difficult, to some structure, leaks because the crack can cause, influences the normal use of structural member, brings dangerous.
(3) summary of the invention:
Purpose of the present invention is to provide a kind of reinforced concrete precast member that contains steel plate at the deficiencies in the prior art, and it has higher crack resistance, satisfies social urgent requirement of going up hydro-structure " safety in utilization ".
Purpose of the present invention; realize by following measure: the reinforced concrete precast member that contains steel plate; it has the concrete cover of some reinforcing bars and its outside adequate thickness, and its special feature is that this prefabricated component also contains the steel plate of being made up of steel plate and epoxy radicals stickup resin.
The steel plate of being made up of steel plate and epoxy radicals stickup resin can place in the concrete cover, and its steel plate is fixed on the reinforcing bar.
The steel plate of being made up of steel plate and epoxy radicals stickup resin also can stick to the concrete protective laminar surface.
Steel plate has two layers, and the direction of its one deck steel plate is identical with the axis of reinforced concrete precast member, and the direction of its another layer steel plate and the axis of reinforced concrete precast member are perpendicular.
Compared with prior art; employing contains the reinforced concrete precast member of steel plate; because steel plate has higher axial tensile strength; good endurance, anticorrosive, ageing-resistant and fatigue strength advantages of higher; can prefabricated component rapid wear harm or easily the place of cracking paste resin by epoxy radicals and concrete cover adheres to each other; thereby strengthen anti-shearing, the tension and the anti-fatigue ability of prefabricated component part, improving the ductility of member, improving element bearing capacity, it is conspicuous satisfying on the safety in utilization.
(4) description of drawings:
Fig. 1 is the preferred embodiment schematic diagram that the utility model proposes.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is that steel plate places embodiment prefabricated component face upwarding section in the concrete cover
Fig. 4 is the B-B sectional drawing of Fig. 3.
(5) specific embodiment:
Below in conjunction with accompanying drawing the specific embodiment is elaborated:
In the preferred embodiments of the present invention shown in Figure 1; this beam is certain building prefabrication reinforced concrete structure prefabricated component; comparatively complicated at the middle part of beam stressing conditions; environment is comparatively abominable; under the situation of safety factor affluence; still crackle can appear; bring unsafe factor; field repair is very inconvenience also, therefore in the prefabricated process of beam, when concrete is about to solidify; for the zone that is easy to generate crackle; on concrete cover 2 surfaces, the steel plate 3 design tensile strength that adopt in the present embodiment are 210MPa steel plate 3 roll extrusion of soaking into epoxy radicals stickup resin 4 that cut, and thickness is 5mm.This example has adopted double-deck reinforcing method, earlier pastes one deck steel plate 3b along the axis normal direction of beam, even its axis with beam is perpendicular, again along axis direction stickup one deck steel plate 3a of beam, even its axis with beam is identical.Adopt the method for arranging like this, the reinforced concrete precast member beam that contains steel plate improves about 20～60% than the cracking resistance load of ordinary reinforced concrete prefabricated component beam.
In some scenarios; illustration 3; the steel plate of being made up of steel plate 3 and epoxy radicals stickup resin 4 can be placed in the concrete cover 2, the steel plate 3 that soaks into epoxy radicals stickup resin 4 is fixed on the reinforcing bar 1, when concrete cover 2 solidifies, take suitable insulation measure also can reach same effect.
Claims (4)
1. reinforced concrete precast member that contains steel plate, it has the concrete cover (2) of some reinforcing bars (1) and its outer enough thickness, it is characterized in that also containing the steel plate of being made up of steel plate (3) and epoxy radicals stickup resin (4).
2. the reinforced concrete precast member that contains steel plate according to claim 1 is characterized in that the described steel plate of being made up of steel plate (3) and epoxy radicals stickup resin (4) places in the concrete cover (2), and steel plate (3) is fixed on the reinforcing bar (1).
3. the reinforced concrete precast member that contains steel plate according to claim 1 is characterized in that the described steel plate of being made up of steel plate (3) and epoxy radicals stickup resin (4) sticks to concrete cover (2) surface.
4. the reinforced concrete precast member that contains steel plate according to claim 3, it is characterized in that described steel plate (3) has two layers, the direction of its one deck steel plate (3a) is identical with the axis of steel concrete pre-member, and the direction of its another layer steel plate (3b) and the axis of steel concrete pre-member are perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100380320A CN101265738A (en) | 2007-03-13 | 2007-03-13 | Reinforced concrete precast member containing steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100380320A CN101265738A (en) | 2007-03-13 | 2007-03-13 | Reinforced concrete precast member containing steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101265738A true CN101265738A (en) | 2008-09-17 |
Family
ID=39988402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100380320A Pending CN101265738A (en) | 2007-03-13 | 2007-03-13 | Reinforced concrete precast member containing steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101265738A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133785A (en) * | 2015-08-18 | 2015-12-09 | 刁德斌 | Building concrete member embedded with Y-shaped reinforced beams |
| CN107575039A (en) * | 2017-09-30 | 2018-01-12 | 徐州金盟新型建材有限公司 | A kind of reinforced concrete precast member for strengthening plasticity |
| CN111549902A (en) * | 2020-04-30 | 2020-08-18 | 赵玮 | Reinforced concrete prefabricated member |
| CN111851777A (en) * | 2020-07-24 | 2020-10-30 | 江苏凯翔建设集团有限公司 | Reinforced structure of reinforced concrete wall and reinforcing method thereof |
-
2007
- 2007-03-13 CN CNA2007100380320A patent/CN101265738A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133785A (en) * | 2015-08-18 | 2015-12-09 | 刁德斌 | Building concrete member embedded with Y-shaped reinforced beams |
| CN107575039A (en) * | 2017-09-30 | 2018-01-12 | 徐州金盟新型建材有限公司 | A kind of reinforced concrete precast member for strengthening plasticity |
| CN111549902A (en) * | 2020-04-30 | 2020-08-18 | 赵玮 | Reinforced concrete prefabricated member |
| CN111549902B (en) * | 2020-04-30 | 2021-12-14 | 建型(山东)建材科技有限公司 | Reinforced concrete prefabricated member |
| CN111851777A (en) * | 2020-07-24 | 2020-10-30 | 江苏凯翔建设集团有限公司 | Reinforced structure of reinforced concrete wall and reinforcing method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20080917 |