CN214831852U - Construction structure for extending bridge deck slab bridge and box type expanded foundation abutment structure - Google Patents
Construction structure for extending bridge deck slab bridge and box type expanded foundation abutment structure Download PDFInfo
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- CN214831852U CN214831852U CN202120172206.8U CN202120172206U CN214831852U CN 214831852 U CN214831852 U CN 214831852U CN 202120172206 U CN202120172206 U CN 202120172206U CN 214831852 U CN214831852 U CN 214831852U
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Abstract
The utility model discloses an extend bridge floor slab bridge's construction structures and box foundation abutment structure that enlarges, the construction structures of extending bridge floor slab bridge includes the abutment of constituteing by abutment bottom plate and the vertical abutment stage body of locating on the abutment bottom plate, the front end of abutment bottom plate protrusion forward in abutment stage body, be equipped with at least one case room on the abutment stage body, be equipped with the inside and outside air vent of a plurality of intercommunication case rooms on the abutment stage body, the front side lower extreme slope of abutment stage body is equipped with the outlet of at least one intercommunication case room, the upper end front side of abutment stage body is equipped with the support that is used for supporting the girder, the rear side of abutment is provided with the platform back and bankets, pour one deck reinforced concrete on the platform back banket in order to form the decking. The utility model discloses well use the abutment bottom plate of case room structure and extension forward, improved the rigidity of abutment structure and the ability of anti soil lateral pressure, make it directly undertake a back soil lateral pressure, need not design the pile foundation, the construction is simple, swift and easy operation.
Description
Technical Field
The utility model belongs to municipal bridge engineering design field, concretely relates to extend bridge floor slab bridge's construction structures and box foundation abutment structure that enlarges.
Background
At present, bridge abutments mainly adopted by domestic engineering projects are as follows: gravity type abutment, light abutment, buried abutment, etc. The gravity type abutment balances the earth side pressure behind the abutment by means of self weight, most of abutment body materials are masonry or concrete, the structure is simple, the bearing area of the bottom surface of the foundation is large, the stress is relatively small, but the volume of the masonry is large; the light bridge abutment is relative to a gravity type bridge abutment, the light bridge abutment balances the earth side pressure behind the abutment back by other construction measures instead of relying on self gravity, and the bridge abutment is generally made of reinforced concrete into a light structure; the embedded abutment buries the abutment body in the toper bank protection, only leaks the abutment cap outside in order to settle support and superstructure, and the soil side pressure that the abutment received is very reduced like this, and the volume of abutment also reduces correspondingly, nevertheless because the bank protection stretches into the bridge opening, has compressed the river course.
Municipal administration bridge of surging often has certain view requirement, and gravity type abutment is too much than the thickness, generally does not adopt from the view, and municipal administration bridge of surging usually can not compress the river course simultaneously, so generally also not adopt buried type abutment. The most adopted municipal administration bridge span is a reinforced concrete thin-wall light bridge abutment, the height of the bridge abutment is less than 6m, the bridge abutment is generally a cantilever type bridge abutment, the height of the bridge abutment is more than 6m, the light bridge abutment is generally a counterfort type bridge abutment, but the light bridge abutment has light dead weight, cannot resist lateral soil pressure by self, is generally designed together with a drilling and pouring pile foundation, resists the soil lateral pressure by the pile foundation, and has high cost and uneconomic design and construction of the drilling and pouring pile foundation for karst development areas or areas with better geological conditions.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome current technical defect, provide an extend bridge floor slab bridge's construction structures, utilize the abutment bottom plate of case room structure and extension forward, improved the rigidity of abutment structure and the ability of anti soil lateral pressure, make it can directly undertake a back soil lateral pressure, need not design pile foundation, the construction is simple, swift and easy operation.
In order to solve the technical problem, the utility model provides an extend construction structures of bridge floor slab bridge, include and locate by abutment bottom plate and vertical the abutment that abutment body on the abutment bottom plate is constituteed, the front end of abutment bottom plate protrusion forward in abutment body, be equipped with at least one case room on the abutment body, be equipped with a plurality of intercommunications on the abutment body the indoor outer air vent of case, the front side lower extreme slope of abutment body is equipped with at least one intercommunication the outlet of case room, the upper end front side of abutment body is equipped with the support that is used for supporting the girder, the rear side of abutment is provided with the back of the platform and bankets, pour one deck reinforced concrete on the back of the platform bankets in order to form the decking.
Furthermore, the abutment body comprises a front web plate and a rear web plate which are arranged in front and at back, a top plate which is arranged on the upper ends of the front web plate and the rear web plate in a crossing mode, and at least two side plates which are arranged between the front web plate and the rear web plate at intervals, and the front web plate, the rear web plate, the top plate, the side plates and the abutment bottom plate are enclosed to form the box chamber; the support is arranged at the upper end of the front web, the back of the platform is filled with soil and arranged at the rear side of the back web, the vent hole is arranged on the side plate, and the drain hole is arranged at the lower end of the front web.
Furthermore, force transmission chamfer inclined planes are arranged between the inner side and the outer side of the lower end of the front web and the abutment bottom plate, and the water drain holes are positioned on the upper sides of the force transmission chamfer inclined planes; and a supporting part for supporting the bridge deck is arranged at the upper end of the rear side of the rear web plate in a protruding mode.
Furthermore, a broken stone cushion layer is filled in the ground at the bottom of the abutment bottom plate, and a plain concrete cushion layer is further arranged between the abutment bottom plate and the broken stone cushion layer.
Furthermore, the bottom of the abutment bottom plate is also provided with an anti-skid key embedded in the gravel cushion layer.
Further, the anti-slide keys comprise longitudinal anti-slide keys and transverse anti-slide keys which are crisscrossed to form at least one cross shape.
The utility model also provides a basic abutment structure is enlarged to box, include by abutment bottom plate and vertical locating abutment body on the abutment bottom plate, the front end of abutment bottom plate protrusion forward in abutment body, be equipped with at least one case room on the abutment body, be equipped with a plurality of intercommunications on the abutment body the indoor outer air vent of case, the front side lower extreme slope of abutment body is equipped with at least one intercommunication the outlet of case room, the upper end front side of abutment body is equipped with the support that is used for supporting the girder.
Furthermore, the abutment body comprises a front web plate and a rear web plate which are arranged in front and at back, a top plate which is arranged on the upper ends of the front web plate and the rear web plate in a crossing mode, and at least two side plates which are arranged between the front web plate and the rear web plate at intervals, and the front web plate, the rear web plate, the top plate, the side plates and the abutment bottom plate are enclosed to form the box chamber; the support is arranged at the upper end of the front web, the back of the platform is filled with soil and arranged at the rear side of the back web, the vent hole is arranged on the side plate, and the drain hole is arranged at the lower end of the front web.
Furthermore, force transmission chamfer inclined planes are arranged between the inner side and the outer side of the lower end of the front web and the abutment bottom plate, and the water drain holes are positioned on the upper sides of the force transmission chamfer inclined planes; and a supporting part for supporting the bridge deck is arranged at the upper end of the rear side of the rear web plate in a protruding manner.
Furthermore, the bottom of the abutment bottom plate is provided with anti-sliding keys in a protruding mode, and the anti-sliding keys comprise longitudinal anti-sliding keys and transverse anti-sliding keys which are criss-cross to form at least one cross.
The utility model discloses following beneficial effect has: by adopting the abutment with the box chamber structure, the dead weight of the abutment is reduced, the requirement on the bearing capacity of the foundation is reduced, and the abutment is suitable for soft soil foundations; meanwhile, the rigidity and the soil side pressure resistance of the abutment structure are improved by utilizing the box chamber structure and the abutment bottom plate extending towards the direction of the bridge hole, so that the abutment structure can directly bear the soil side pressure behind the abutment, a pile foundation is not required to be designed, and the construction is simple, rapid and easy to operate; through the obliquely arranged drain hole, the problem of water accumulation in the box chamber can be solved, and external water can be prevented from reversely entering the box chamber when the external water level is not higher than the orifice at the inner side; the abutment bottom plate is used for dispersing the stress of the abutment base, the rear web plate is used for bearing the pressure of the rear soil side of the abutment and transmitting the pressure to the whole abutment structure, and the front web plate transmits the counter force of the main beam to the whole abutment bottom plate through the force transmission chamfer inclined plane at the lower end of the front web plate so as to disperse the stress; in addition, the bridge abutment structure has no pollution to the environment during construction, reduces the pollution problems of dust emission and the like caused by the construction of the cast-in-situ bored pile, and is convenient and fast to construct and easy to operate; the anti-sliding key at the bottom of the bridge abutment is used for improving the anti-sliding capability of the structure of the bridge abutment, so that the problem that the bridge abutment slides due to extrusion of filled earth after the bridge abutment is avoided, and the stability and the reliability of the structure are improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:
FIG. 1 is a schematic view of a construction structure of an extended deck slab bridge in example 1;
FIG. 2 is a top view of the abutment of examples 1 and 2;
FIG. 3 is a bottom schematic view of the abutment floor of examples 1 and 2;
fig. 4 is a schematic view of the structure of the box-type enlarged foundation abutment in embodiment 2.
Detailed Description
In order to fully understand the technical contents of the present invention, the present invention will be further described and explained with reference to the accompanying drawings and specific embodiments; it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, do not refer to the orientation or positional relationship shown in the drawings, but merely indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation for ease of describing the present invention and are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used to distinguish between different elements, etc., and do not denote a sequential order, nor do the terms "first" and "second" define different types.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 3, the construction structure of an extended bridge deck slab bridge according to the embodiment includes an abutment formed on an abutment foundation by pouring, the abutment includes a square abutment bottom plate 4 and an abutment body vertically arranged in the middle of the abutment bottom plate 4, a front end of the abutment bottom plate 4 protrudes forward (i.e. in the direction of a bridge opening) from the abutment body, a large-sized abutment bottom plate 4 is used to enlarge a contact area between the abutment and the ground for dispersing and reducing abutment base stress, so that the base stress can meet a bearing capacity requirement after the foundation is processed, wherein the abutment bottom plate 4 is buried below the ground 14, and the abutment body extends upward out of the ground; the bridge abutment body is provided with at least one box chamber 16, the bridge abutment body is provided with a plurality of vent holes 11 communicated with the inside and the outside of the box chamber 16, so that the air inside and the air outside the box chamber are communicated, the lateral wind pressure borne by the bridge abutment is reduced, the lower end of the front side of the bridge abutment body is downwards inclined from inside to outside and provided with at least one drain hole 10 communicated with the box chamber 16, the drain hole 10 is positioned above the ground 14, and through the obliquely arranged drain hole, the problem of water accumulation in the box chamber can be solved, and the external water can be prevented from reversely entering the box chamber when the external water level is not higher than the inner hole; a support 13 for supporting a main beam 15 is arranged on the front side of the upper end of the abutment body; the rear side of the abutment is provided with the post-abutment filling 17 consisting of foamed light soil, and the traditional post-abutment filling such as medium coarse sand, stone chips and the like is replaced by the self-balancing foamed light soil filling, so that the post-abutment soil side pressure can be almost ignored, the post-abutment soil side pressure is balanced by the abutment without extra constructional measures, and the construction is simple, rapid and easy to operate; a layer of reinforced concrete is poured on the filling 3 behind the bridge to form a bridge deck 12 which is flush with the main beam 1 and is communicated with the front and the back, and the foam light soil below the bridge deck can reduce the problem of post-construction settlement, thereby lightening the bumping at the bridge head and improving the driving comfort.
As shown in fig. 1, the abutment body includes a front web 3 and a rear web 2 arranged in front and back, a top plate 1 arranged across the upper ends of the front web 3 and the rear web 2, and at least two side plates 5 arranged between the front web 3 and the rear web 2 at intervals, a box chamber 16 is enclosed among the front web 3, the rear web 2, the top plate 1, the side plates 5 and the abutment bottom plate 4, the number of the box chambers is determined according to the number of the side plates, specifically, the number of the box chambers is one less than that of the side plates, and in this embodiment, there are four box chambers; the support 13 is arranged on the front side of the upper end of the front web 3, the filling 17 behind the platform is arranged on the rear side of the rear web 2, the vent hole 11 is arranged on the side plate 5, and the drain hole 10 is arranged on the lower end of the front web 3.
As shown in fig. 1, force transmission chamfer slopes 18 are arranged between the inner side and the outer side of the lower end of the front web 3 and the abutment bottom plate 4, and the force transmission chamfer slopes are arranged to transmit the structural counter force of the upper part of the bridge to the abutment bottom plate, so that the structural reliability is improved; the weep holes 10 are located on the upper side of the force transfer chamfer angle 18.
As shown in fig. 1, a supporting portion 19 for supporting the bridge deck 12 is convexly provided at the upper end of the rear side of the rear web 2, so that one end of the bridge deck is erected on the supporting portion 13, and the other end of the bridge deck is erected on the ground, thereby reducing the extrusion of the bridge deck 12 to the filling 17 below the bridge deck, and further reducing the extrusion of the filling to the bridge deck.
As shown in fig. 1, a gravel cushion layer 9 is filled in the ground at the bottom of the abutment bottom plate 4, a plain concrete cushion layer 8 is further filled between the abutment bottom plate 4 and the gravel cushion layer 9, the gravel cushion layer is used as a supporting foundation of the abutment, the structural strength of the foundation is improved, and the plain concrete cushion layer is used for leveling the surface of the foundation.
As shown in fig. 1 and 3, the bottom of the abutment bottom plate 4 is further provided with anti-skid keys embedded in a gravel cushion layer 9, and the gravel cushion layer is used for carrying out blocking support on the anti-skid keys in front, back, left and right directions, so that the anti-skid capability of the abutment structure is improved, the problem that the abutment is squeezed by filling soil behind the abutment to slide is avoided, and the stability and reliability of the structure are improved.
As shown in fig. 3, the anti-slide keys include longitudinal anti-slide keys 6 and transverse anti-slide keys 7 which are criss-crossed to form at least one cross; in this embodiment, a transverse anti-sliding key 7 is arranged on the bottom of the abutment bottom plate 4 in the transverse direction, and two longitudinal anti-sliding keys 6 penetrating through the transverse anti-sliding keys 7 are arranged on the bottom of the abutment bottom plate 7 in the longitudinal direction at intervals, so that the transverse anti-sliding keys 7 and the longitudinal anti-sliding keys 6 form two crosses, and during construction, the gravel cushion 9 fills the space between the transverse anti-sliding keys 7 and the longitudinal anti-sliding keys 6, so that the binding force between the anti-sliding keys and the gravel cushion is increased by using a plurality of cross structures, and the structural anti-sliding capability of the abutment can be further improved.
In other embodiments, the anti-skid keys, the abutment floor and the abutment body may be formed as a unitary abutment by prefabricated hoisting or cast-in-place.
In other embodiments, the main beam may be arranged on the support by prefabricated hoisting or cast-in-place.
In the above, the construction method of the construction structure of the extended bridge deck slab bridge is performed according to the following steps:
1) excavating a foundation range for constructing a bridge abutment and backfilling foam light soil behind the bridge abutment;
2) if soft foundation exists at the dug foundation, the soft foundation treatment is required to be carried out firstly, so that the foundation can meet the requirement of bearing capacity;
3) sequentially backfilling a plain concrete cushion layer and a broken stone cushion layer in the excavated foundation range;
4) integrally pouring the anti-sliding key at the bottom, the abutment bottom plate and the abutment body to form an abutment;
5) soaking and washing light soil behind the backfilling platform in a layered manner;
6) and reinforced concrete is poured on the filling soil behind the bridge to form a bridge deck, and then a main beam is erected on the support.
Example 2
As shown in fig. 2 to 4, the box-type enlarged foundation abutment structure shown in this embodiment includes a square abutment bottom plate 4 and an abutment body vertically arranged in the middle of the abutment bottom plate 4, wherein the front end of the abutment bottom plate 4 protrudes forward (i.e. in the direction of the bridge opening) from the abutment body, and a large-size abutment bottom plate 4 is used to enlarge the contact area between the abutment and the ground for dispersing and reducing the abutment base stress, so that the base stress can meet the bearing capacity requirement after the foundation is treated; the abutment body is provided with at least one box chamber 16, the abutment body is provided with a plurality of vent holes 11 for communicating the inside and the outside of the box chamber 16, so that the air inside and the outside of the box chamber are communicated, the lateral wind pressure borne by the abutment is reduced, the lower end of the front side of the abutment body is downwards inclined from inside to outside and provided with at least one drain hole 10 for communicating the box chamber 16, and through the drain holes arranged in an inclined manner, the problem of water accumulation in the box chamber can be solved, and the external water level is not higher than the inner hole opening, so that the external water can be prevented from reversely entering the box chamber; a support 13 for supporting a main beam is arranged on the front side of the upper end of the abutment body; the above-mentioned bell, through adopting the abutment of the structure of the case room, thus has lightened the dead weight of the abutment, has reduced its requirement to bearing capacity of the foundation, make it suitable for the soft soil foundation; meanwhile, the rigidity and the soil side pressure resistance of the bridge abutment structure are improved by utilizing the box chamber structure and the bridge abutment bottom plate extending towards the direction of the bridge hole, so that the bridge abutment structure can directly bear the soil side pressure behind the bridge abutment, a pile foundation is not required to be designed, and the construction is simple, rapid and easy to operate.
As shown in fig. 4, the abutment body includes a front web 3 and a rear web 2 arranged in front and back, a top plate 1 arranged across the upper ends of the front web 3 and the rear web 2, and at least two side plates 5 arranged between the front web 3 and the rear web 2 at intervals, a box chamber 16 is enclosed among the front web 3, the rear web 2, the top plate 1, the side plates 5 and the abutment bottom plate 4, the number of the box chambers is determined according to the number of the side plates, specifically, the number of the box chambers is one less than that of the side plates, and in this embodiment, there are four box chambers; the support 13 is arranged on the front side of the upper end of the front web 3, the vent hole 11 is arranged on the side plate 5, and the drain hole 10 is arranged on the lower end of the front web 3.
As shown in fig. 4, force transmission chamfer slopes 18 are arranged between the inner side and the outer side of the lower end of the front web 3 and the abutment bottom plate 4, and the force transmission chamfer slopes are arranged to transmit the structural counter force of the upper part of the bridge to the abutment bottom plate, so that the structural reliability is improved; the weep holes 10 are located on the upper side of the force transfer chamfer angle 18.
As shown in fig. 3 and 4, the bottom of the abutment bottom plate 4 is further convexly provided with an anti-slip key, the anti-slip key is utilized to improve the structural anti-slip capability of the abutment, the problem that the abutment slips due to extrusion of filling soil after the abutment is avoided, and the structural stability and reliability are improved.
As shown in fig. 3, the anti-slide keys include longitudinal anti-slide keys 6 and transverse anti-slide keys 7 which are criss-crossed to form at least one cross; in this embodiment, a transverse anti-sliding key 7 is arranged on the bottom of the abutment bottom plate 4 in the transverse direction, and two longitudinal anti-sliding keys 6 penetrating through the transverse anti-sliding keys 7 are arranged on the bottom of the abutment bottom plate 7 in the longitudinal direction at intervals, so that the transverse anti-sliding keys 7 and the longitudinal anti-sliding keys 6 form two crosses, the binding force between the anti-sliding keys and the gravel cushion is increased by using a plurality of cross structures, and the structural anti-sliding capability of the abutment can be further improved.
As shown in fig. 4, the rear web 2 is provided at its rear upper end with a raised support portion 19 for supporting the bridge deck provided in the exterior on the back filling.
In other embodiments, the anti-skid keys, the abutment floor and the abutment body may be formed as a unitary abutment by prefabricated hoisting or cast-in-place.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a construction structures of extension bridge floor slab bridge which characterized in that includes by abutment bottom plate and vertical locate abutment body constitution of abutment on the abutment bottom plate, the front end of abutment bottom plate protrusion forward in abutment body, abutment body is last to be equipped with at least one box room, abutment body is last to be equipped with a plurality of intercommunication the inside and outside air vent of box room, abutment body's front side lower extreme slope is equipped with at least one intercommunication the outlet of box room, abutment body's upper end front side is equipped with the support that is used for supporting the girder, abutment's rear side is provided with the platform back and fills soil, pour the one deck reinforced concrete in order to form the decking behind the platform on the platform fill soil.
2. The construction structure of an extended deck slab bridge as claimed in claim 1, wherein said abutment body comprises front and rear webs arranged in front and rear, a top plate disposed across upper ends of said front and rear webs, and at least two side plates disposed between said front and rear webs at an interval, said front and rear webs, top plate, side plates and abutment bottom plate enclosing said chamber therebetween; the support is arranged at the upper end of the front web, the back of the platform is filled with soil and arranged at the rear side of the back web, the vent hole is arranged on the side plate, and the drain hole is arranged at the lower end of the front web.
3. The construction structure of an extended deck slab bridge of claim 2, wherein force-transmitting chamfer slopes are provided between the inner and outer sides of the lower end of the front web and the abutment bottom plate, and the drain hole is located on the upper side of the force-transmitting chamfer slope; and a supporting part for supporting the bridge deck is arranged at the upper end of the rear side of the rear web plate in a protruding mode.
4. A construction structure of an extended deck slab bridge as claimed in any one of claims 1 to 3, wherein a crushed stone cushion layer is filled in the ground at the bottom of said abutment bottom plate, and a plain concrete cushion layer is further provided between said abutment bottom plate and said crushed stone cushion layer.
5. An extended deck slab bridge construction structure as claimed in claim 4 wherein the bottom of said abutment floor is further provided with anti-skid keys embedded in said gravel pack.
6. An extended deck slab bridge construction structure as claimed in claim 5 wherein said anti-skid keys comprise longitudinal and transverse anti-skid keys which are criss-crossed to form at least one cruciform.
7. The utility model provides a basic abutment structure is enlarged to box, its characterized in that includes and is located by abutment bottom plate and vertical abutment platform body on the abutment bottom plate, the front end of abutment bottom plate protrusion forward in abutment platform body, be equipped with at least one case room on the abutment platform body, be equipped with a plurality of intercommunications on the abutment platform body the indoor outer air vent of case, the slope of the front side lower extreme of abutment platform body is equipped with at least one intercommunication the outlet of case room, the upper end front side of abutment platform body is equipped with the support that is used for supporting the girder.
8. The box-type enlarged foundation abutment structure according to claim 7, wherein the abutment body comprises front and rear webs arranged in front and rear, a top plate disposed across upper ends of the front and rear webs, and at least two side plates disposed in spaced relation between the front and rear webs, the front, rear, top, side and abutment bottom plates enclosing the box chamber therebetween; the support is arranged at the upper end of the front web, the back of the platform is filled with soil and arranged at the rear side of the back web, the vent hole is arranged on the side plate, and the drain hole is arranged at the lower end of the front web.
9. The box-type enlarged foundation abutment structure according to claim 8, wherein force-transmission chamfer slopes are arranged between the inner and outer sides of the lower end of the front web and the abutment bottom plate, and the drain hole is positioned on the upper side of the force-transmission chamfer slope; and a supporting part for supporting the bridge deck is arranged at the upper end of the rear side of the rear web plate in a protruding manner.
10. The box-type enlarged foundation abutment structure according to any one of claims 7 to 9, wherein the bottom of the abutment bottom plate is convexly provided with anti-slide keys, and the anti-slide keys comprise longitudinal anti-slide keys and transverse anti-slide keys which are criss-cross to form at least one cross shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120172206.8U CN214831852U (en) | 2021-01-21 | 2021-01-21 | Construction structure for extending bridge deck slab bridge and box type expanded foundation abutment structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120172206.8U CN214831852U (en) | 2021-01-21 | 2021-01-21 | Construction structure for extending bridge deck slab bridge and box type expanded foundation abutment structure |
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| CN214831852U true CN214831852U (en) | 2021-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508042A (en) * | 2022-02-16 | 2022-05-17 | 广东省冶金建筑设计研究院有限公司 | Variable-section bridge abutment and construction method |
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2021
- 2021-01-21 CN CN202120172206.8U patent/CN214831852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508042A (en) * | 2022-02-16 | 2022-05-17 | 广东省冶金建筑设计研究院有限公司 | Variable-section bridge abutment and construction method |
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