CN216947869U - Orthotropic steel concrete combined bridge deck - Google Patents
Orthotropic steel concrete combined bridge deck Download PDFInfo
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- CN216947869U CN216947869U CN202220735760.7U CN202220735760U CN216947869U CN 216947869 U CN216947869 U CN 216947869U CN 202220735760 U CN202220735760 U CN 202220735760U CN 216947869 U CN216947869 U CN 216947869U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The utility model discloses an orthotropic steel concrete combined bridge deck plate which comprises a waveform top plate and transverse partition plates, wherein the waveform top plate is arranged along the bridge direction and is formed by alternately and continuously arranging plane plates and arc plates, the transverse partition plates are arranged under the waveform top plate at equal intervals along the transverse bridge direction, the connecting ends of the transverse partition plates and the waveform top plate are provided with waveform curve structures matched with the surface of the waveform top plate, an ultrahigh-performance concrete structure layer is paved on the waveform top plate, and concrete of the ultrahigh-performance concrete structure layer is densely filled on the plane plates of the waveform top plate and in arc cavities of the arc plates; through the wave form roof structure and the diaphragm structure that goes up support wave form roof and fill the super high performance concrete structure layer on the wave form roof and form the atress system entirely, promote the rigidity and the intensity of decking and thoroughly replace the roof and the longitudinal stiffening rib's joint weld, and the diaphragm need not the trompil, has improved the fatigue resistance of decking.
Description
Technical Field
The utility model relates to the field of bridges, in particular to an orthotropic steel concrete combined bridge deck.
Background
The orthotropic steel bridge deck plate structure which is most widely applied at present consists of a deck plate and transverse and longitudinal stiffening ribs welded on the deck plate, and a waterproof layer and a paving layer of 40-80 mm are arranged on the deck plate. According to the stress characteristics of orthotropic steel bridge deck plates, because the stress influence line is short, obvious stress concentration can occur in connection details, and meanwhile, the number of welding seams and geometric discontinuous parts have a plurality of initial defects, so that fatigue cracks are more easily generated under the action of repeated vehicle loads.
Therefore, a novel orthotropic steel concrete combined bridge deck slab is needed to solve the fatigue problem of the key fatigue vulnerable part of the traditional orthotropic steel bridge deck slab.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an orthotropic steel-concrete composite deck slab to overcome the defects in the prior art, so as to improve the fatigue resistance of the orthotropic steel deck slab.
The orthotropic steel concrete combined bridge deck comprises a waveform top plate and transverse partition plates, wherein the waveform top plate is arranged along the bridge direction and is formed by plane plates and arc plates which are alternately and continuously arranged, the transverse partition plates are arranged below the waveform top plate at equal intervals along the bridge direction, the connecting ends of the transverse partition plates and the waveform top plate are provided with waveform curve structures which are adaptive to the surface of the waveform top plate, an ultrahigh-performance concrete structure layer is paved on the waveform top plate, and concrete of the ultrahigh-performance concrete structure layer is densely filled on the plane plates of the waveform top plate and in arc cavities of the arc plates;
further, a layer of three-dimensional porous fiber material with three-dimensional through holes is laid on the upper surface of the wave-shaped top plate, and the ultrahigh-performance concrete is filled in the three-dimensional through holes of the three-dimensional porous fiber material and mutually interpenetrates and crosses with the three-dimensional porous fiber material to form a network-interwoven composite compact structure;
further, the diaphragm plate and the waveform top plate have the same waveform curve structure and are welded and fixed up and down correspondingly;
further, the bending part of the wave-shaped top plate is in smooth transition to form an R angle of 60 degrees;
further, the wave-shaped top plate consists of an upper layer of steel panel, a lower layer of steel panel and a polyurethane core layer positioned between the upper layer of steel panel and the lower layer of steel panel;
further, the polyurethane core layer is uniformly and densely filled in a cavity formed by the upper steel panel and the lower steel panel and is bonded and fixed with the steel panels;
further, the distance between the diaphragm plates is 3 m;
further, the thickness of the transverse partition plate is consistent with that of the corrugated top plate.
The utility model has the beneficial effects that: the orthotropic steel concrete combined bridge deck disclosed by the utility model is characterized in that a stress system is integrally formed by a corrugated top plate structure, a diaphragm plate structure for supporting the corrugated top plate and an ultrahigh-performance concrete structure layer filled on the corrugated top plate, the rigidity and the strength of the bridge deck are improved, the connecting welding line of the top plate and a longitudinal stiffening rib is thoroughly replaced, the diaphragm plate does not need to be provided with a hole, and the fatigue resistance of the bridge deck is improved.
Drawings
The utility model is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a three-dimensional porous fibrous material layer;
fig. 3 is a partial cross-sectional view of the wave-shaped top plate.
Detailed Description
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural view of a three-dimensional porous fibrous material layer; fig. 3 is a partial cross-sectional view of the wave-shaped top plate. As shown in the figure: the orthotropic steel concrete combined bridge deck comprises a corrugated top plate 2 and transverse partition plates 1, wherein the corrugated top plate 2 is formed by alternately and continuously arranging plane plates 201 and arc plates 202 along the bridge direction, the transverse partition plates 1 are arranged below the corrugated top plate 2 at equal intervals along the bridge direction, the connecting ends of the transverse partition plates 1 and the corrugated top plate 2 are provided with a corrugated curve structure matched with the surface of the corrugated top plate 2, an ultrahigh-performance concrete structure layer 3 is paved on the corrugated top plate 2, and concrete of the ultrahigh-performance concrete structure layer 3 is densely filled on the plane plates 201 of the corrugated top plate 2 and in arc cavities of the arc plates 202; the connection part of the lower edge of the longitudinal rib of the traditional orthotropic steel bridge deck and the diaphragm plate 1 may generate large out-of-plane deformation due to wheel load, and particularly fatigue cracks are easy to generate under the action of vehicle load, so that an opening is usually arranged on the diaphragm plate 1 to ensure that the longitudinal rib continuously passes through. The utility model integrally forms a stress system by the structure of the wave-shaped top plate 2, the structure of the diaphragm plate 1 for supporting the wave-shaped top plate 2 and the ultra-high performance concrete structure layer 3 filled on the wave-shaped top plate 2, improves the rigidity and the strength of the bridge deck and thoroughly replaces the connecting welding seam of the top plate and the longitudinal stiffening rib, thereby improving the fatigue resistance of the bridge deck. And the diaphragm 1 does not need to be perforated because the deck slab is sufficiently rigid. In this embodiment, the "plane plates 201 and arc plates 202 alternately and continuously arranged" of the wave-shaped top plate 2 means that one plane plate 201 and one curved plate form a group, and the wave-shaped curved structure having a plane section and a curved section is formed by continuously arranging the plane plates 201 and the curved plates. The whole wave-shaped top plate 2 is integrally formed, and the plane section and the curved surface section of the wave-shaped top plate 2 are filled with ultra-high performance concrete to form an ultra-high performance concrete structure layer 3 which can also be used as a bridge deck pavement layer or a wear-resistant layer is paved. The linkage segment of diaphragm plate 1 has the curved surface structure that suits with the lower surface of wave form roof 2 to the lower surface of perfect laminating wave form roof 2 is convenient for weld and improvement welded fastness and stability.
In this embodiment, a three-dimensional porous fiber material layer 4 with three-dimensional through holes is laid on the upper surface of the corrugated top plate 2, and the ultra-high performance concrete is filled in the three-dimensional through holes of the three-dimensional porous fiber material layer 4 and is mutually interpenetrated and crossed with the three-dimensional porous fiber material 4 to form a network-interwoven composite compact structure; in order to improve the integrity of the ultra-high performance concrete structure layer 3 and the corrugated roof 2 and avoid interlayer slippage in the stress process, a layer of three-dimensional porous fiber material 4 is paved on the upper surface of the corrugated roof 2, then the ultra-high performance concrete is cast in place, so that the ultra-high performance concrete is filled in the three-dimensional through holes of the three-dimensional porous fiber material 4 and is mutually interpenetrated and crossed with the three-dimensional porous fiber material 4 to form a network-interwoven composite compact structure, and the strength, the integrity strength and the rigidity of the interlayer structure are improved through the network-interwoven structure.
In this embodiment, the diaphragm plate 1 and the wave-shaped top plate 2 have the same wave-shaped curve structure and are welded and fixed up and down correspondingly; that is, the welded end of the diaphragm plate 1 is identical to the wavy curve of the wavy roof plate 2, and the flat section and the curved section are also arranged in series.
In this embodiment, the bending part of the wave-shaped top plate 2 is smoothly transited to form an R angle of 60 °; the anti-damage strength of the bending part is improved, and the damage caused by stress concentration of the bending part is avoided.
In this embodiment, the wave-shaped top plate 2 is composed of an upper steel panel (203, 204) and a lower steel panel (203, 204), and a polyurethane core layer 205 located between the upper steel panel and the lower steel panel (203, 204); the polyurethane core layer 205 is uniformly and densely filled in a cavity formed by the upper and lower steel panels (203, 204) and is bonded and fixed with the steel panels; the arrangement of the core layer can bear larger shearing force; the core layer plays a supporting role between the upper layer steel panel and the lower layer steel panel, so that the bending rigidity of the section is improved; meanwhile, the dead weight of the steel plate can be reduced. In addition, polyurethane elastomers have sufficient modulus of elasticity and stiffness so that steel-polyurethane elastomers exhibit significant hysteresis to the stress of alternating loads. During the change process, a part of the external force load energy is consumed in the polyurethane elastomer and then converted into heat energy. Therefore, the polyurethane elastomer can absorb and absorb vibration when being subjected to transient impact load, and simultaneously transmit and disperse the transverse force borne by the steel panel. And the polyurethane core material is connected with the upper steel panel and the lower steel panel, so that the core layer and the panels are used as a whole to bear all loads such as shearing force, bending moment and the like transmitted by the panels, the bearing capacity of the sandwich plate is improved, the stress of the sandwich plate is more uniform, and the stress concentration degree is reduced. And for a more optimal solution, the polyurethane core layer may be a honeycomb structure.
In this embodiment, the distance between the diaphragm plates 1 is 3m, and the thickness of the diaphragm plates 1 is equal to that of the corrugated top plate 2. The arrangement of the distance and the thickness of the diaphragm plates 1 can improve the rigidity and the strength of the wave-shaped top plate 2.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (8)
1. The utility model provides an orthotropic steel concrete combination decking which characterized in that: the concrete dense filling device comprises a corrugated top plate and a diaphragm plate, wherein the corrugated top plate is formed by plane plates and arc plates which are alternately and continuously arranged along the bridge direction, and the diaphragm plate is arranged under the corrugated top plate at equal intervals along the transverse bridge direction, a connecting end of the diaphragm plate and the corrugated top plate is provided with a corrugated curve structure matched with the surface of the corrugated top plate, an ultrahigh-performance concrete structure layer is paved on the corrugated top plate, and the concrete of the ultrahigh-performance concrete structure layer is densely filled on the plane plates of the corrugated top plate and in arc cavities of the arc plates.
2. The orthotropic steel-concrete composite bridge deck according to claim 1, wherein: the upper surface of the wave-shaped top plate is paved with a layer of three-dimensional porous fiber material with three-dimensional through holes, and the ultrahigh-performance concrete is filled in the three-dimensional through holes of the three-dimensional porous fiber material and is mutually interpenetrated and crossed with the three-dimensional porous fiber material to form a network-interwoven composite compact structure.
3. The orthotropic steel-concrete composite bridge deck according to claim 2, wherein: the diaphragm plate and the wave-shaped top plate have the same wave-shaped curve structure and are welded and fixed up and down correspondingly.
4. The orthotropic steel-concrete composite bridge deck according to claim 3, wherein: the bending part of the wave-shaped top plate is in smooth transition to form an R angle of 60 degrees.
5. The orthotropic steel-concrete composite bridge deck according to claim 4, wherein: the corrugated top plate is composed of an upper layer of steel panel, a lower layer of steel panel and a polyurethane core layer positioned between the upper layer of steel panel and the lower layer of steel panel.
6. The orthotropic steel-concrete composite bridge deck according to claim 5, wherein: the polyurethane core layer is uniformly and densely filled in a cavity formed by the upper and lower steel face plates and is bonded and fixed with the steel face plates.
7. The orthotropic steel-concrete composite bridge deck according to claim 6, wherein: the distance between the diaphragm plates is 3 m.
8. The orthotropic steel-concrete composite bridge deck according to claim 7, wherein: the thickness of the transverse partition plate is consistent with that of the corrugated top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220735760.7U CN216947869U (en) | 2022-03-31 | 2022-03-31 | Orthotropic steel concrete combined bridge deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220735760.7U CN216947869U (en) | 2022-03-31 | 2022-03-31 | Orthotropic steel concrete combined bridge deck |
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| Publication Number | Publication Date |
|---|---|
| CN216947869U true CN216947869U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220735760.7U Active CN216947869U (en) | 2022-03-31 | 2022-03-31 | Orthotropic steel concrete combined bridge deck |
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| CN (1) | CN216947869U (en) |
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2022
- 2022-03-31 CN CN202220735760.7U patent/CN216947869U/en active Active
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