CN222935839U - Bridge deck continuous structure of simply supported girder bridge - Google Patents
Bridge deck continuous structure of simply supported girder bridge Download PDFInfo
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- CN222935839U CN222935839U CN202421543627.7U CN202421543627U CN222935839U CN 222935839 U CN222935839 U CN 222935839U CN 202421543627 U CN202421543627 U CN 202421543627U CN 222935839 U CN222935839 U CN 222935839U
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Abstract
The utility model relates to the technical field of bridge engineering design and construction, and provides a continuous structure of a simply supported girder bridge deck, which is paved in a notch between a first prefabricated girder and a second prefabricated girder, wherein the continuous structure of the simply supported girder bridge deck comprises a positioning component, a supporting steel plate, a flexible component and an ultra-high performance concrete paving layer, a first rib plate is arranged on the upper surface of the positioning component above the first prefabricated girder, and a second rib plate is arranged on the upper surface of the positioning component above the second prefabricated girder; one side of the supporting steel plate is welded with the first rib plate, the other side of the supporting steel plate is welded with the second rib plate, the flexible piece is fixed on one surface of the supporting steel plate facing the positioning component and is in sliding fit with the positioning component, and the ultra-high performance concrete pavement layer is paved above the supporting steel plate. The bridge deck continuous structure of the simply supported girder bridge can effectively resist the concrete cracking and deformation problems of the bridge deck continuous structure of the simply supported girder bridge under the actions of vehicle load, temperature load, concrete shrinkage creep and the like.
Description
Technical Field
The utility model relates to the technical field of bridge engineering design and construction, in particular to a bridge deck continuous structure of a simply supported girder bridge.
Background
The bridge deck continuous structure is widely applied to simply supported girder bridges, and plays an important role in reducing the number of expansion joints, improving the travelling comfort of the bridge and the like. The traditional bridge deck continuous structure mainly comprises cast-in-place concrete pavement and unbonded steel bar pull rods, has weaker bearing capacity and deformation resistance, and is easy to crack bridge deck continuous concrete in the service period, thereby influencing structural durability. Meanwhile, under the actions of temperature load, shrinkage creep of a concrete girder and the like, the continuous part of the bridge deck is a structurally weak position, and diseases such as bridge deck warpage and steel bar bending can occur, so that the normal use of the bridge is affected.
Disclosure of utility model
The utility model provides a bridge deck continuous structure of a simply supported girder bridge, which is used for solving the defect that the bridge deck continuous structure in the prior art is weak in bearing capacity and deformation resistance, and can effectively resist concrete cracking and deformation of the bridge deck continuous structure of the simply supported girder bridge under the actions of vehicle load, temperature load, concrete shrinkage creep and the like by forming a combined structure through a positioning part, a supporting steel plate, a flexible part and an ultra-high performance concrete pavement layer.
The utility model provides a bridge deck continuous structure of a simply supported girder bridge, which is paved in a notch between a first prefabricated girder and a second prefabricated girder, and comprises the following components:
The positioning component extends along the laying direction, one side of the positioning component is fixedly connected with the first prefabricated main beam, and the other side of the positioning component is fixedly connected with the second prefabricated main beam;
one side of the supporting steel plate is welded with the first rib plate, the other side of the supporting steel plate is welded with the second rib plate, and the supporting steel plate and the positioning part synchronously extend;
The flexible piece is fixed on one surface of the supporting steel plate facing the positioning component and is in sliding fit with the positioning component;
the ultra-high performance concrete pavement layer is paved above the supporting steel plate and the positioning part.
According to the simple girder bridge deck continuous structure provided by the utility model, the positioning component comprises a first positioning steel plate and a second positioning steel plate, the first positioning steel plate is arranged above the first prefabricated girder, the second positioning steel plate is arranged above the second prefabricated girder, the first rib plate is arranged on the first positioning steel plate, and the second rib plate is arranged on the second positioning steel plate.
According to the simple girder bridge deck continuous structure provided by the utility model, the first positioning steel plate comprises a first stress section and a first transition section, the first transition section is arranged at one end of the first stress section far away from the second positioning steel plate, and the first rib plate is arranged between the first stress section and the first transition section;
The second positioning steel plate comprises a second stress section and a second transition section, the second transition section is arranged at one end, far away from the first positioning steel plate, of the second stress section, and the second rib plate is arranged between the second stress section and the second transition section.
According to the simply supported girder bridge deck continuous structure, the positioning component further comprises a first anchoring steel bar and a second anchoring steel bar, wherein the first anchoring steel bar is arranged on the lower side of the first positioning steel plate and embedded in the first prefabricated main girder, the first anchoring steel bar is used for fixing the first positioning steel plate, the second anchoring steel bar is arranged on the lower side of the second positioning steel plate and embedded in the second prefabricated main girder, and the second anchoring steel bar is used for fixing the second positioning steel plate.
According to the simple girder bridge deck continuous construction provided by the utility model, the first anchoring steel bar comprises:
The first straight line section is positioned at the lower side of the first stress section and is fixedly connected with the first stress section;
The first inclined section is positioned at one end of the first straight line section far away from the second anchoring steel bar, and forms a first preset included angle with the first straight line section, and an opening of the first preset included angle faces the first prefabricated main girder;
The first bending section is positioned at one end of the first straight line section facing the second anchoring steel bar and is curled along the direction away from the second anchoring steel bar.
According to the simply supported girder bridge deck continuous construction provided by the utility model, the second anchoring steel bar comprises:
the second straight line segment is positioned at the lower side of the second stress segment and is fixedly connected with the second stress segment;
The second inclined section is positioned at one end of the second straight line section far away from the first anchoring steel bar and is distributed at a second preset included angle with the second straight line section, and an opening of the second preset included angle faces the second prefabricated main girder;
The second bending section is positioned at one end of the second straight line section facing the first anchoring steel bar and is curled along the direction away from the first anchoring steel bar.
According to the simple girder bridge deck continuous structure provided by the utility model, the flexible piece comprises the rubber plate, and the rubber plate is attached to one surface of the supporting steel plate, which faces the positioning part, and is in sliding fit with the positioning part.
According to the simply supported girder bridge deck continuous structure, the ultra-high performance concrete pavement layer comprises a pavement layer body, supporting shear nails and positioning shear nails, wherein the pavement layer body is paved above the supporting steel plates, one ends of the supporting shear nails are embedded in the pavement layer body, the other ends of the supporting shear nails are fixedly connected with the supporting steel plates, one ends of the positioning shear nails are embedded in the pavement layer body, and the other ends of the positioning shear nails are fixedly connected with the positioning components.
According to the continuous bridge deck structure of the simply supported girder bridge, the paving layer body comprises an ultra-high-performance concrete layer and a reinforcing mesh, and the reinforcing mesh penetrates through the ultra-high-performance concrete layer along the width direction of the first prefabricated girder.
The bridge deck continuous structure of the simply supported girder bridge provided by the utility model has the advantages that the positioning parts are arranged above the first prefabricated girder and the second prefabricated girder, so that the positioning parts can play a role in positioning, on the other hand, the corners of the first prefabricated girder and the second prefabricated girder can be prevented from being damaged and cracked in the construction process, the first prefabricated girder, the second prefabricated girder and the concrete close to wet joints can be protected, and in addition, the damage to the first prefabricated girder and the second prefabricated girder caused by high temperature in welding can be effectively reduced by fixing the supporting steel plates through the first rib plates and the second rib plates.
In addition, the flexible piece is in sliding fit with the positioning part, so that horizontal displacement of the first prefabricated main beam and the second prefabricated main beam along the longitudinal bridge direction under the actions of temperature load, concrete shrinkage creep and the like can be released, the deformation resistance of the bridge deck continuous structure can be greatly improved, diseases such as bridge deck warpage and reinforcing steel bar bending can be avoided, and in addition, the combined structure of the support steel plate and the ultra-high performance concrete pavement layer has better bearing capacity and fatigue resistance, even under the conditions of heavy load and large traffic, the continuous part of the bridge deck can be prevented from generating concrete cracking and other diseases, and the durability, the safety and the travelling comfort of the whole bridge structure can be improved.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a laying position of a continuous bridge deck structure of a simply supported girder bridge according to an embodiment of the present utility model.
Fig. 2 is a schematic diagram of a second paving position of a continuous bridge deck structure of a simply supported girder bridge according to an embodiment of the present utility model.
Fig. 3 is a schematic cross-sectional view of a continuous construction of a bridge deck of a simply supported girder bridge according to an embodiment of the present utility model.
Fig. 4 is a schematic structural diagram of a part of a continuous structure of a bridge deck of a simply supported girder bridge according to an embodiment of the present utility model.
Fig. 5 is a schematic diagram of connection between a supporting steel plate and a first rib plate according to an embodiment of the present utility model.
Reference numerals:
10, 20, 30, namely a bridge deck continuous structure of a simply supported girder bridge;
100 parts of positioning components, 110 parts of first positioning steel plates, 111 parts of first rib plates, 112 parts of first stress sections, 113 parts of first transition sections, 120 parts of second positioning steel plates, 121 parts of second rib plates, 122 parts of second stress sections, 123 parts of second transition sections, 130 parts of first anchoring steel bars, 131 parts of first straight line sections, 132 parts of first inclined sections, 133 parts of first bending sections, 140 parts of second anchoring steel bars, 141 parts of second straight line sections, 142 parts of second inclined sections and 143 parts of second bending sections;
200 parts of supporting steel plates, 300 parts of flexible parts, 400 parts of ultra-high performance concrete pavement layers, 410 parts of pavement layer bodies, 411 parts of ultra-high performance concrete layers, 412 parts of reinforcing steel bars, 420 parts of supporting shear nails and 430 parts of positioning shear nails.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In describing embodiments of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intermediate medium. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.
In embodiments of the application, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Fig. 1 is one of schematic diagrams of laying positions of a bridge deck continuous structure of a simply supported girder bridge provided by an embodiment of the present utility model, and fig. 2 is the second of schematic diagrams of laying positions of a bridge deck continuous structure of a simply supported girder bridge provided by an embodiment of the present utility model.
Referring to fig. 1, the embodiment of the present utility model provides a continuous bridge deck structure 30 of a simply supported girder bridge, where the continuous bridge deck structure 30 of a simply supported girder bridge is installed between any two adjacent prefabricated girders, i.e., directly above a bridge pier, and hereinafter, for convenience of explanation, the two adjacent prefabricated girders along the driving direction are respectively named as a first prefabricated girder 10 and a second prefabricated girder 20, i.e., the first prefabricated girder 10 and the second prefabricated girder 20 are connected with each other with a wide edge, specifically, during construction, a notch may be dug between the first prefabricated girder 10 and the second prefabricated girder 20, and then the continuous bridge deck structure 30 of a simply supported girder bridge provided by the embodiment of the present utility model is laid in the notch.
Case 2 referring to fig. 2, in another alternative embodiment of the present utility model, unlike the foregoing embodiment, the embodiment of the present utility model provides a continuous bridge deck structure 30 of a simply supported girder, where the continuous bridge deck structure 30 of a simply supported girder is installed between any two adjacent prefabricated girders, hereinafter, for convenience of explanation, two prefabricated girders adjacent in a direction perpendicular to a traveling direction are respectively named as a first prefabricated girder 10 and a second prefabricated girder 20, that is, the first prefabricated girder 10 and the second prefabricated girder 20 are connected by long sides, and specifically, during construction, a notch may be dug between the first prefabricated girder 10 and the second prefabricated girder 20, and the continuous bridge deck structure 30 of a simply supported girder provided by the embodiment of the present utility model may be laid in the notch.
Referring to the foregoing, it should be noted that the first prefabricated main beam 10 and the second prefabricated main beam 20 are only schematic designations given herein for convenience of description, and are not to be taken as a specific limitation of any embodiment of the present utility model, and it should be understood that the first prefabricated main beam 10 and the second prefabricated main beam 20 may be regarded as designations of any two adjacent prefabricated main beams, and that the layout of the simply supported girder bridge deck continuous construction 30 provided in the embodiments of the present utility model in the case 1 and the case 2 is similar, and that the layout of the case 1 is selected herein as an explanation for avoiding redundancy, so that a person skilled in the art should simply derive the layout of the case 2 based on the description herein.
Fig. 3 is a schematic cross-sectional view of a continuous bridge deck structure of a simply supported girder bridge provided by an embodiment of the present utility model (the cross-sectional direction is the direction a in fig. 1), and fig. 4 is a schematic detailed structure of a portion of the continuous bridge deck structure of the simply supported girder bridge provided by the embodiment of the present utility model.
Referring to fig. 3 and 4, the continuous bridge deck structure 30 of a simply supported girder bridge provided by the embodiment of the present utility model includes a positioning member 100, a supporting steel plate 200, a flexible member 300 and an ultra-high performance concrete pavement layer 400, wherein the positioning member 100 extends along the width direction of a first prefabricated girder 10, one side of the positioning member 100 is fixedly connected with the first prefabricated girder 10, the other side is fixedly connected with a second prefabricated girder 20, a first rib plate 111 is disposed on the upper surface of the positioning member 100 above the first prefabricated girder 10, a second rib plate 121 is disposed on the upper surface of the positioning member 100 above the second prefabricated girder 20, and both the first rib plate 111 and the second rib plate 121 extend synchronously with the positioning member 100.
Fig. 5 is a schematic diagram of connection between a supporting steel plate and a first rib plate according to an embodiment of the present utility model.
Referring to fig. 4 and 5, the supporting steel plate 200 is disposed above the positioning component 100, spans the gaps between the first prefabricated main beam 10 and the second prefabricated main beam 20, and is welded with the first rib plate 111 on one side and the second rib plate 121 on the other side of the supporting steel plate 200, and specifically can be in the form of fillet welding, and the supporting steel plate 200 and the positioning component 100 extend synchronously, and it can be understood that the supporting steel plate 200 can be used as a main stress member of the simply supported girder bridge deck continuous structure 30 on one hand, and can be used as a mold when the ultra-high performance concrete pavement layer 400 is poured on the other hand.
The flexible member 300 is fixed on the side of the supporting steel plate 200 facing the positioning member 100, specifically, the flexible member 300 may be attached to the supporting steel plate 200 by an adhesive when the supporting steel plate 200 is prefabricated, and it should be noted that there is no connection between the flexible member 300 and the positioning member 100, and the two are in sliding fit, that is, the flexible member 300 may move relative to the positioning member 100.
As can be appreciated from fig. 1 to 5, the continuous structure 30 of the simply supported girder bridge deck provided by the embodiment of the present utility model is provided with the positioning component 100 above the first prefabricated girder 10 and the second prefabricated girder 20, so that the positioning component 100 can perform a positioning function, and on the other hand, can prevent the corners of the first prefabricated girder 10 and the second prefabricated girder 20 from being damaged and cracked during construction, and can protect the first prefabricated girder 10, the second prefabricated girder 20 and the adjacent wet joint concrete, and in addition, the damage to the first prefabricated girder 10 and the second prefabricated girder 20 caused by high temperature during welding can be effectively reduced by fixing the supporting steel plates 200 through the first rib plates 111 and the second rib plates 121.
In addition, the flexible piece 300 is arranged between the support steel plate 200 and the positioning component 100, so that the deformation problem of the continuous bridge deck structure 30 of the simply supported girder bridge under the action of a vehicle load can be effectively resisted through the deformation of the flexible piece 300, furthermore, the flexible piece 300 is in sliding fit with the positioning component 100, based on the sliding fit, the horizontal displacement of the first prefabricated girder 10 and the second prefabricated girder 20 along the longitudinal bridge direction under the actions of temperature load, concrete shrinkage creep and the like can be released, the deformation resisting capacity of the continuous bridge deck structure 30 of the simply supported girder bridge can be greatly improved, the occurrence of diseases such as bridge deck warping and reinforcing steel bar bending can be avoided, and in addition, the combined structure of the support steel plate 200 and the ultra-high performance concrete pavement layer 400 has good bearing capacity and fatigue resistance, even under the conditions of heavy load and large traffic, the occurrence of diseases such as concrete cracking and the like at continuous positions can be prevented, and the integral durability, the safety and the travelling comfort of the bridge structure can be improved.
With continued reference to fig. 3 and 4, in an alternative embodiment of the present utility model, the positioning component 100 includes a first positioning steel plate 110 and a second positioning steel plate 120, where the first positioning steel plate 110 is located above the first prefabricated main beam 10, the second positioning steel plate 120 is located above the second prefabricated main beam 20, the first rib 111 is located on the first positioning steel plate 110, and the second rib 121 is located on the second positioning steel plate 120, where it is understood that by providing the first prefabricated main beam 10 and the second prefabricated main beam 20 with corresponding first positioning steel plate 110 and second positioning steel plate 120, on one hand, the manufacturing and handling of the positioning component 100 are facilitated, and on the other hand, the first positioning steel plate 110 and the second positioning steel plate 120 can be directly installed together corresponding to the first prefabricated main beam 10 and the second prefabricated main beam 20 in the prefabrication process, that is, and the first positioning steel plate 110 and the second positioning steel plate 120 can be correspondingly embedded on the first prefabricated main beam 10 and the second prefabricated main beam 20 in the prefabrication process, so that the construction efficiency can be improved and the construction cycle can be shortened. In addition, the first and second positioning steel plates 110 and 120 may also function to protect the first and second prefabricated girders 10 and 20 and wet-joint concrete during the construction process.
With continued reference to fig. 4, in an alternative embodiment of the present utility model, the first positioning steel plate 110 includes a first stress section 112 and a first transition section 113, the first transition section 113 is disposed at an end of the first stress section 112 far from the second positioning steel plate 120, the first rib 111 is disposed between the first transition section 113 and the first stress end, the second positioning steel plate 120 includes a second stress section 122 and a second transition section 123, the second transition section 123 is disposed at an end of the second stress end far from being lower than the first positioning steel plate 110, and the second rib 121 is disposed between the second stress section 122 and the second transition section 123.
With continued reference to fig. 3, in an alternative embodiment of the present utility model, the positioning member 100 further includes a first anchor bar 130 and a second anchor bar 140, the first anchor bar 130 is disposed at a lower side of the first positioning steel plate 110 and is embedded in the first positioning steel plate 10, the first anchor bar 130 is used for fixing the first positioning steel plate 110, the second anchor bar 140 is disposed at a lower side of the second positioning steel plate 120 and is embedded in the second positioning steel plate 20, and the second anchor bar 140 is used for fixing the second positioning steel plate 120, it is understood that the firmness and the integrity between the first positioning steel plate 110 and the first positioning steel plate 10 can be improved by providing the first anchor bar 130, the stress transmission between the first positioning steel plate 10 and the first positioning steel plate 110 can be facilitated, and the firmness and the integrity between the second positioning steel plate 120 and the second positioning steel plate 20 can be improved by providing the second anchor bar 140, which is similar to that.
With continued reference to fig. 3, in an alternative embodiment of the present utility model, the first anchoring reinforcement 130 includes a first straight line segment 131, a first inclined segment 132 and a first curved segment 133, where the first straight line segment 131 is located at the lower side of the first stressed segment 112 and is fixedly connected with the first stressed segment 112, the first inclined segment 132 is located at one end of the first straight line segment 131 far away from the second anchoring reinforcement 140 and forms a first preset included angle with the first straight line segment 131, the opening of the first preset included angle faces the first prefabricated main beam 10, and the first curved segment 133 is located at one end of the first straight line segment 131 facing the second anchoring reinforcement 140 and is curled along a direction far away from the second anchoring reinforcement 140.
It will be appreciated that by providing the first inclined section 132 and the first curved section 133, the direction and form of the stress transfer between the first anchor bar 130 and the first precast main beam 10 can be changed by such arrangement compared to the vertical embedding, so that the connection between the first anchor bar 130 and the first precast main beam 10 can be made more compact, the integrity of the first positioning steel plate 110 and the first precast main beam 10 can be improved, and the stress transfer between the first precast main beam 10 and the first positioning steel plate 110 can be facilitated.
With continued reference to fig. 3, in an alternative embodiment of the present utility model, the second anchoring reinforcement 140 includes a second straight line segment 141, a second inclined segment 142 and a second curved segment 143, where the second straight line segment 141 is located at the lower side of the second stress segment 122 and is fixedly connected with the second stress segment 122, the second inclined segment 142 is located at one end of the second straight line segment 141 away from the first anchoring reinforcement 130 and is disposed at a second preset angle with the second straight line segment 141, an opening of the second preset angle faces the second prefabricated main beam 20, and the second curved segment 143 is located at one end of the second straight line segment 141 facing the first anchoring reinforcement 130 and is curled along a direction away from the second anchoring reinforcement 140, and it is required to be explained that the size of the second preset angle and the curling degree of the second curved segment 143 can be adaptively set according to practical situations, so as to meet practical use requirements.
It will be appreciated that by providing the second inclined section 142 and the second curved section 143, the direction and form of the stress transfer between the second anchor bar 140 and the second prefabricated main beam 20 can be changed by such arrangement, compared to the vertical embedding, so that the connection between the second anchor bar 140 and the second prefabricated main beam 20 can be made more compact, the integrity of the second positioning steel plate 120 and the second prefabricated main beam 20 can be improved, and the stress transfer between the second prefabricated main beam 20 and the second positioning steel plate 120 can be facilitated.
In an alternative embodiment of the present utility model, the flexible member 300 includes a rubber plate, and it is understood that the deformation capability of the rubber plate is good, so that the deformation of the bridge deck continuous structure under the action of the vehicle load can be effectively resisted through the deformation of the rubber plate, and furthermore, the rubber plate is in sliding fit with the positioning member 100, based on this, the horizontal displacement of the first prefabricated main beam 10 and the second prefabricated main beam 20 along the longitudinal bridge direction under the actions of temperature load, concrete shrinkage creep and the like can be released, the deformation resisting capability of the simply supported girder bridge deck continuous structure 30 can be greatly improved, and the occurrence of diseases such as bridge deck warpage and reinforcing steel bar bending can be avoided.
With continued reference to fig. 3 and 4, in an alternative embodiment of the present utility model, the ultra-high performance concrete pavement 400 includes a pavement body 410, supporting shear nails 420 and positioning shear nails 430, the pavement body 410 is disposed above the supporting steel plate 200, one end of the supporting shear nails 420 is embedded in the pavement body 410, the other end is fixedly connected with the supporting steel plate 200, one end of the positioning shear nails 430 is embedded in the pavement body 410, and the other end is fixedly connected with the positioning component 100. It can be appreciated that by arranging the supporting shear nails 420 and the positioning shear nails 430, the connection firmness among the positioning component 100, the supporting steel plate 200 and the ultra-high performance concrete pavement layer 400 can be improved, the stress transmission among the components is facilitated, the components can form a stress member together, the stress performance of the whole structure is improved, and the bearing capacity and the fatigue resistance of the simply supported girder bridge deck continuous construction 30 are improved.
With continued reference to fig. 3 and 4, in an alternative embodiment of the present utility model, the pavement body 410 includes the ultra-high performance concrete layer 411 and the reinforcing mesh 412, the reinforcing mesh 412 is penetrated through the ultra-high performance concrete layer 411 along the width direction of the first prefabricated girder 10, and when in construction, the reinforcing mesh 412 may be laid above the positioning member 100 and the supporting steel plate 200, and then the ultra-high performance concrete layer 411 is poured, it is understood that the reinforcing mesh 412 may ensure that the ultra-high performance concrete pavement layer 400 does not crack, may improve the rigidity, the bearing capacity and the fatigue resistance of the ultra-high performance concrete pavement layer 400, and may more effectively resist the deformation of the ultra-high performance concrete layer 411 under the action of the vehicle load.
The concrete construction process of the continuous bridge deck construction 30 of the simply supported girder bridge provided by the embodiment of the present utility model is shown below, in which the first positioning steel plate 110 may be fixed at the top surface of the first prefabricated girder 10 through the first anchor steel bars 130 and the second positioning steel plate 120 may be fixed at the top surface of the second prefabricated girder 20 through the second anchor steel bars 140 during the prefabrication process of the first prefabricated girder 10 and the second prefabricated girder 20, or the first positioning steel plate 110 and the second positioning steel plate 120 may be fixed by the same method when the first prefabricated girder 10 and the second prefabricated girder 20 are cast in place at the wet joints and the cantilever after the construction site is completed.
The rubber plate is adhered to the supporting steel plate 200, the supporting shear nails 420 and the positioning shear nails 430 are correspondingly welded to the supporting steel plate 200, the first positioning steel plate 110 and the second positioning steel plate 120, the rubber plate can be integrally transported to a construction site after being prefabricated in a factory, and can be directly manufactured on the construction site, after the first prefabricated main beam 10 and the second prefabricated main beam 20 are erected, the surfaces of the first positioning steel plate 110 and the second positioning steel plate 120 can be cleaned, the rubber plate and the supporting steel plate 200 are flatly installed on the first positioning steel plate 110 and the second positioning steel plate 120, and fillet welding is adopted at the joint of the supporting steel plate 200 and the first rib plate 111 and the second rib plate 121, and the fact that the rubber plate and the first positioning steel plate 110 and the second positioning steel plate 120 are not subjected to bonding treatment is required is guaranteed, so that the rubber plate and the first positioning steel plate 110 and the second positioning steel plate 120 can relatively slide to a certain extent.
After the supporting steel plate 200 is installed, the reinforcing mesh 412 can be paved above the supporting steel plate 200, and then the ultra-high performance concrete is poured, and it can be understood that the ultra-high performance concrete material has good construction performance, the compactness of the ultra-high performance concrete material after being agglomerated and formed with the reinforcing mesh 412 in a narrow space can be ensured, and the construction quality of the whole structure can be improved.
After the construction of the ultra-high performance concrete pavement layer 400 is completed, the construction of the upper road surface layer structure can be performed, and it is to be noted that in the whole construction process of the simply supported girder bridge deck continuous structure 30, only the ultra-high performance concrete pavement layer 400 needs to be performed in site construction, other components can be prefabricated in factories and assembled in site, and the ultra-high performance concrete pavement layer 400 provided by the embodiment of the utility model further simplifies the construction flow of the bridge deck continuous structure, and can greatly reduce the construction period of the whole bridge deck construction.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present utility model.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421543627.7U CN222935839U (en) | 2024-07-02 | 2024-07-02 | Bridge deck continuous structure of simply supported girder bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421543627.7U CN222935839U (en) | 2024-07-02 | 2024-07-02 | Bridge deck continuous structure of simply supported girder bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222935839U true CN222935839U (en) | 2025-06-03 |
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|---|---|---|---|
| CN202421543627.7U Active CN222935839U (en) | 2024-07-02 | 2024-07-02 | Bridge deck continuous structure of simply supported girder bridge |
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| Country | Link |
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| CN (1) | CN222935839U (en) |
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2024
- 2024-07-02 CN CN202421543627.7U patent/CN222935839U/en active Active
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