CN203200657U - Composite bridge deck slab with FRP component provided with ribs and concrete - Google Patents
Composite bridge deck slab with FRP component provided with ribs and concrete Download PDFInfo
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- CN203200657U CN203200657U CN 201320209441 CN201320209441U CN203200657U CN 203200657 U CN203200657 U CN 203200657U CN 201320209441 CN201320209441 CN 201320209441 CN 201320209441 U CN201320209441 U CN 201320209441U CN 203200657 U CN203200657 U CN 203200657U
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- bridge deck
- ribs
- vertical rib
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Abstract
The utility model discloses a composite bridge deck slab with an FRP component provided with ribs and concrete. The composite bridge deck slab comprises the FRP component provided with the ribs and a later-pouring concrete surface layer, wherein the FRP component provided with the ribs comprises an FRP base slab at the lower portion and the FRP longitudinal slab ribs on the FRP base slab, at least the FRP base slab or each FRP longitudinal slab rib has a hollow section, and transverse through holes are formed in the FRP longitudinal slab ribs. The FRP longitudinal slab ribs and the through holes formed in the FRP longitudinal slab ribs enlarge the contact area of the FRP component provided with the ribs and the concrete, the shear-bearing capacity of the contact face is improved, and the performance of an overlapped face is improved. The FRP base slab or/and the FRP longitudinal slab ribs in the hollow-section mode can reduce material amount and increase component rigidity, and the overall performance of the bridge deck slab after combination is greatly improved. The composite bridge deck slab is simple in structure and convenient to manufacture and construct, templates and supports are not needed, the structural mechanical property is superior, and problems of the current composite bridge deck slab structure can be effectively solved.
Description
Technical field
The invention belongs to technical field of bridge engineering, relate to specifically FRP member with ribbing and combine with concrete pavement and be applied in the bridge, particularly be applied in the large span pedestrian overcrossing.
Background technology
In city pedestrian overcrossing or speedway pedestrian overcrossing process of construction, concrete in situ is the job practices that generally adopts, and Full space support construction brings very large inconvenience to the normal traffic in city; Simultaneously, the endurance issues such as steel corrosion and distress in concrete more and more causes people's concern.Bridge deck directly bear vehicular load and environmental activity, be to be subjected to the unfavorable factors such as overload, corrosion and fatigue to affect the most direct member, and concrete slab easily ftracture, and steel bridge deck is easily peeled off, corrosion, brings huge hidden danger and loss to traffic.
Fibre reinforced plastics (hereinafter to be referred as FRP) have that intensity is high, surface density is little, and the characteristics such as antifatigue and corrosion resistance and good begin to be applied in the civil engineering, and wherein, the FRP bridge deck are particularly paid attention to.The FRP bridge deck form according to material and are divided into full FRP bridge deck and FRP-concrete combined bridge deck, and the relative steel of FRP material price and concrete are higher, full FRP bridge deck exist that initial investment is large, rigidity is low, be connected the shortcomings such as difficult with girder, do not obtain common application.FRP-concrete combined bridge deck top is the main pressurized of concrete, the bottom is the main tension of FRP member, pass through the connected system collaborative work between them, bi-material is fully used, and the larger rigidity of acquisition, this structure can take full advantage of the advantage that concrete crushing strength is high, cost is low, can give full play to again the high characteristics of FRP tensile strength; Simultaneously, the FRP member can double as and be template, constructability.But the interface problem of FRP member and rear pouring concrete surface layer restricts applying of this structure always.For this reason, develop that a kind of rigidity is large, good endurance, the novel bridge panel construction strong with concrete binding power seems particularly important.
Summary of the invention
The present invention carries out reasonable combination with FRP and concrete, purpose is to develop a kind of simple in structure, make easy construction, speed of application is fast, need not to set up template and support, and structural mechanical property is superior, can effectively solve FRP member novel with ribbing and the concrete combined bridge deck of the problems of present combined bridge deck plated construction existence.
The present invention is achieved like this, this FRP member with ribbing and concrete combined bridge deck, comprise FRP member with ribbing, rear pouring concrete surface layer, FRP member with ribbing is divided into FRP base plate and vertical rib of slab two parts of the FRP on it of bottom, have at least one to adopt the hollow section form in described FRP base plate and the vertical rib of slab of FRP, be provided with cross through hole in the vertical rib of slab of FRP.
Feature of the present invention is that also the cross sectional shape of the vertical rib of slab of described FRP is rectangle or T shape; Feature of the present invention also is on the vertical rib of slab of described FRP projection or groove are arranged, and projection and groove are perhaps arranged simultaneously; Feature of the present invention also is in the cross through hole on the vertical rib of slab of the FRP of described hollow section form sleeve is arranged; Feature of the present invention also is to be furnished with in the described cross through hole cross-perforating reinforcing bar; Feature of the present invention is that also the cross sectional shape of described cross through hole is circle, ellipse, arc, polygon (n 〉=3 are counted on the limit).
The beneficial effect of technique scheme is: it is provided with the vertical rib of slab of FRP, and shape can adopt rectangle or T shape etc., so that the base plate section form is inverted T-shaped or I-shaped etc., section form is more effective; The vertical rib of slab of FRP can be used as shear key, and the existence of rib of slab has obviously increased the contact area of FRP member with ribbing and rear pouring concrete, has significantly improved the performance of superposed surfaces; By in rib of slab, setting up cross through hole, pouring concrete and rib of slab form " pin " effect after in the rib of slab cross through hole, increased the mechanical snap power of FRP member with ribbing and rear pouring concrete, Effective Raise the shear behavior of contact surface, guarantee the co-operation performance of combined bridge deck; By configuration cross-perforating reinforcing bar in reserving hole, realized horizontal arrangement of reinforcement, improved the stress performance of bridge deck, pouring concrete forms " steel concrete pin " behind cross-perforating reinforcing bar and the rib of slab hole, has further increased the shear resistance of contact surface; The FRP base plate of hollow section form or and the vertical rib of slab of FRP can reduce material usage, increase stiffness of structural member, so that the overall performance of the bridge deck after the combination is significantly strengthened.
Describe the present invention below in conjunction with accompanying drawing, but not as limitation of the present invention.
Description of drawings
In the following drawings, 1 is FRP member with ribbing, 2 is the FRP base plate, 3 is the vertical rib of slab of FRP, and 4 is rear pouring concrete surface layer, and 5 is the cross through hole that arranges in the vertical rib of slab 3 of FRP, 6 is the projection on the vertical rib of slab of FRP, 7 is the groove on the vertical rib of slab of FRP, and 8 is the sleeve in the cross through hole 5 on the vertical rib of slab 3 of FRP of hollow section form, and 9 is the cross-perforating reinforcing bar in the cross through hole 5.
Fig. 1 is the structural representation of FRP member with ribbing and concrete combined bridge deck.
Fig. 2 is FRP member with ribbing and another embodiment of concrete combined bridge deck structure.
Fig. 3 is the FRP base plate of employing hollow section form and the vertical rib of slab structural representation of FRP of solid section form.
Fig. 4～23 are the schematic cross section of another embodiment of the vertical rib of slab of FRP of the FRP base plate that adopts the hollow section form and solid section form.
Figure 24 is the FRP base plate of employing solid section form and the vertical rib of slab structural representation of FRP of hollow section form.
Figure 25 is the schematic cross section of another embodiment of the vertical rib of slab of FRP of the FRP base plate that adopts the solid section form and hollow section form.
Figure 26 is the FRP base plate of employing hollow section form and the vertical rib of slab structural representation of FRP of hollow section form.
Figure 27～33 are the schematic cross section of another embodiment of the vertical rib of slab of FRP of the FRP base plate that adopts the hollow section form and hollow section form.
Figure 34 is the structural representation that projection is arranged on the vertical rib of slab of FRP.
Figure 35 is the schematic cross section of Figure 34.
Figure 36 is the schematic cross section that another embodiment of projection is arranged on the vertical rib of slab of FRP.
Figure 37 is reeded schematic cross section on the vertical rib of slab of FRP.
Figure 38～39 are the schematic cross section of reeded another embodiment on the vertical rib of slab of FRP.
Figure 40 is the schematic cross section that projection and groove are arranged on the vertical rib of slab of FRP.
Figure 41 arranges the schematic diagram of sleeve when adopting the vertical rib of slab of FRP of hollow section form in the cross through hole.
Figure 42 is the structural representation after the sleeve among Figure 41 enters cross through hole.
The specific embodiment
The present invention is shown in accompanying drawing 1～42.
With reference to figure 1～33, this FRP member with ribbing and concrete combined bridge deck, comprise FRP member 1 with ribbing, rear pouring concrete surface layer 4, FRP member 1 with ribbing is divided into FRP base plate 2 and vertical rib of slab 3 two parts of FRP on it of bottom, have one in FRP base plate 2 and the vertical rib of slab 3 of FRP at least and adopt the hollow section form, be provided with cross through hole 5 in the vertical rib of slab 2 of FRP.
Wherein, the cross sectional shape of the vertical rib of slab 3 of FRP can adopt rectangle or T shape etc., the vertical rib of slab 3 of FRP is shaped as rectangle among Fig. 1, the vertical rib of slab 3 of FRP is shaped as T shape among Fig. 2, the vertical rib of slab 3 of the FRP of rectangular shape is so that the base plate section form is inverted T-shaped, the vertical rib of slab 3 of the FRP of T shape shape is so that the base plate section form is I-shaped, and section form is more effective; The vertical rib of slab 3 of FRP can be used as shear key, and the existence of rib of slab has obviously increased the contact area of FRP member 1 with ribbing and rear pouring concrete 4, has significantly improved the performance of superposed surfaces.Be provided with cross through hole 5 in the vertical rib of slab 3 of FRP, rear pouring concrete 4 in the cross through hole 5 forms " pin " effect with rib of slab, increased the mechanical snap power of FRP member with ribbing 1 and rear pouring concrete 4, Effective Raise the shear behavior of contact surface, guarantee the co-operation performance of combined bridge deck.Can arrange cross-perforating reinforcing bar 9 in the cross through hole 5, as shown in Figure 1, by at reserving hole 5 interior configuration cross-perforating reinforcing bars 9, realized horizontal arrangement of reinforcement, improved the stress performance of bridge deck, pouring concrete forms " steel concrete pin " behind cross-perforating reinforcing bar 9 and the rib of slab hole, has further increased the shear resistance of contact surface.The cross sectional shape of cross through hole 5 is circle, ellipse, arc, polygon (n 〉=3 are counted on the limit), the cross sectional shape of the cross through hole 5 among Fig. 3 is circular, the cross sectional shape of the cross through hole 5 among Figure 24 is rectangle, the cross sectional shape of the cross through hole 5 among Figure 26 adopts a kind of in the arc, namely semicircle, the cross sectional shape of the cross through hole 5 among Figure 41 adopts a kind of in the polygon, namely with the rectangle of chamfering.Have one in FRP base plate 2 and the vertical rib of slab 3 of FRP at least and adopt the hollow section form, can reduce material usage like this, increase stiffness of structural member, so that the overall performance of the bridge deck after the combination is significantly strengthened.When the FRP base plate 2 that adopts the hollow section form when adopting the vertical rib of slab 3 of FRP of solid section form, its structural representation or schematic cross section are shown in Fig. 3～23; When the FRP base plate 2 that adopts the solid section form when adopting the vertical rib of slab 3 of FRP of solid section form, its structural representation or schematic cross section are shown in Figure 24～25; When the FRP base plate 2 that adopts the hollow section form when adopting the vertical rib of slab 3 of FRP of hollow section form, its structural representation or schematic cross section are shown in Figure 26～33, certainly, can also with in Fig. 3～23 arbitrarily in the FRP base plate 2 of hollow section form and Figure 32～33 arbitrarily the vertical rib of slab 3 of FRP of hollow section form combine and consist of FRP member 1 with ribbing, need not to give unnecessary details one by one at this.
With reference to Figure 34～40, projection 6 or groove 7 on the vertical plate 3 of FRP perhaps have projection 6 and groove 7 simultaneously, can increase like this contact area of FRP member 1 with ribbing and concrete pavement 4, have effectively improved the adhesion stress of the two.
With reference to Figure 41, when adopting the vertical rib of slab 3 of FRP of hollow section form, sleeve 8 is arranged in the cross through hole 5, sleeve 8 adopts hard material to be made, the cross sectional shape of its cross sectional shape and cross through hole 5 adapts, the section form of the cross through hole 5 in this schematic diagram adopts a kind of in the polygon, and namely with the rectangle of chamfering, thereby sleeve 8 also adopts this section form.If length sleeve is L, the floor width of the vertical rib of slab 3 of the FRP of hollow section form is b, the width of hollow parts is a in the floor, a＜L≤b then, and facing concrete 4 enters the hollow parts in the vertical rib of slab 3 of FRP of hollow section form in the time of can preventing from building like this.After sleeve 8 penetrated cross through hole 5, its structural layout plan as shown in figure 42.
Claims (6)
1. a FRP member with ribbing and concrete combined bridge deck, comprise FRP member with ribbing (1), rear pouring concrete surface layer (4), described FRP member with ribbing (1) is divided into the FRP base plate (2) of bottom and the vertical rib of slab of FRP (3) two parts on its top, it is characterized in that: have at least one to adopt the hollow section form in described FRP base plate (2) and the vertical rib of slab of FRP (3), be provided with cross through hole (5) in the vertical rib of slab of FRP (3).
2. FRP member with ribbing according to claim 1 and concrete combined bridge deck, it is characterized in that: the cross sectional shape of the vertical rib of slab of described FRP (3) is rectangle or T shape.
3. FRP member with ribbing according to claim 1 and concrete combined bridge deck is characterized in that: projection (6) or groove (7) are arranged on the vertical rib of slab of described FRP (3), projection (6) and groove (7) are perhaps arranged simultaneously.
4. FRP member with ribbing according to claim 1 and concrete combined bridge deck is characterized in that: in the cross through hole (5) on the vertical rib of slab of the FRP of described hollow section form (3) sleeve (8) is arranged.
5. FRP member with ribbing according to claim 1 and concrete combined bridge deck is characterized in that: be furnished with cross-perforating reinforcing bar (9) in the described cross through hole (5).
6. FRP member with ribbing according to claim 1 and concrete combined bridge deck is characterized in that: the cross sectional shape of described cross through hole (5) is circle, ellipse, arc, polygon (n 〉=3 are counted on the limit).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209441 CN203200657U (en) | 2013-04-23 | 2013-04-23 | Composite bridge deck slab with FRP component provided with ribs and concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209441 CN203200657U (en) | 2013-04-23 | 2013-04-23 | Composite bridge deck slab with FRP component provided with ribs and concrete |
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|---|---|
| CN203200657U true CN203200657U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320209441 Expired - Fee Related CN203200657U (en) | 2013-04-23 | 2013-04-23 | Composite bridge deck slab with FRP component provided with ribs and concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194970A (en) * | 2013-04-23 | 2013-07-10 | 黄海林 | Ribbed FRP (fiber reinforced plastic) component and concrete composite bridge deck |
| CN106284045A (en) * | 2016-09-19 | 2017-01-04 | 武汉理工大学 | A kind of secondary overlapping concrete slab girder steel combined bridge structure and construction method thereof |
| CN112976607A (en) * | 2021-05-06 | 2021-06-18 | 华北水利水电大学 | FRP (fiber reinforced plastic) section fiber concrete composite construction method and structure for enhancing fatigue load |
-
2013
- 2013-04-23 CN CN 201320209441 patent/CN203200657U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194970A (en) * | 2013-04-23 | 2013-07-10 | 黄海林 | Ribbed FRP (fiber reinforced plastic) component and concrete composite bridge deck |
| CN106284045A (en) * | 2016-09-19 | 2017-01-04 | 武汉理工大学 | A kind of secondary overlapping concrete slab girder steel combined bridge structure and construction method thereof |
| CN112976607A (en) * | 2021-05-06 | 2021-06-18 | 华北水利水电大学 | FRP (fiber reinforced plastic) section fiber concrete composite construction method and structure for enhancing fatigue load |
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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: 20130918 Termination date: 20170423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |