CN213571514U - Assembled square frame steel abutment - Google Patents
Assembled square frame steel abutment Download PDFInfo
- Publication number
- CN213571514U CN213571514U CN202022328859.9U CN202022328859U CN213571514U CN 213571514 U CN213571514 U CN 213571514U CN 202022328859 U CN202022328859 U CN 202022328859U CN 213571514 U CN213571514 U CN 213571514U
- Authority
- CN
- China
- Prior art keywords
- steel
- abutment
- flexible
- girder
- bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to an assembled mouth style of calligraphy frame steel abutment, include the girder and establish the decking above the girder, H shaped steel pile has been buried underground in the soil layer of girder both ends below, is equipped with the flexible abutment of steel in the fixed flexible abutment of H shaped steel top, is equipped with the steel grade beam in the fixed lower part platform rear side level of the flexible abutment of steel, is equipped with the inferior abutment of steel in the vertical fixed bridge in steel grade beam rear end, the level is fixed between the flexible abutment of steel and the inferior abutment of steel is equipped with the steel back timber, one side and girder fixed connection that the steel back timber was kept away from to the flexible abutment of steel, steel grade beam, the inferior abutment of steel and steel back timber constitute a mouth style of calligraphy frame, and it has EPS elastic material to fill in a mouthful style of calligraphy frame. The utility model discloses this assembled mouth style of calligraphy frame abutment rigid frame structure wholeness deformability of style of calligraphy frame abutment of mouth style of calligraphy steel abutment is good, is applicable to the macroseism area, and reducible bridgehead jumps the car, the unstable phenomenon of driving.
Description
The technical field is as follows:
the utility model belongs to the technical field of bridge engineering, pile foundation engineering and specifically relates to an assembled mouth style of calligraphy frame steel abutment is related to.
Background art:
in the traditional bridge, the longitudinal bridge direction temperature expansion deformation of the main beam is not restricted by the bridge abutment, the soil pressure borne by the bridge abutment is not transferred to the main beam, the stress of the main beam and the bridge abutment in the longitudinal bridge direction is mutually independent, and the expansion device at the bridge abutment is more easily damaged compared with the expansion device at the bridge pier due to the problem of jumping behind the bridge abutment; in addition, modern bridges are more continuous structures, so that expansion devices at bridge piers are omitted, and the elimination of the expansion devices at bridge abutments is more and more emphasized by people.
The integral bridge has the advantages that the expansion joint is eliminated in structure, but the horizontal reciprocating deformation of a main beam of the integral bridge, which is generated under the load action of different properties such as environment temperature, concrete shrinkage deformation, automobile impact braking, earthquake and the like, is eliminated and is transmitted to a lower structure, so that the horizontal reciprocating deformation of the lower structure, particularly the bridge abutment and the foundation of the abutment bottom pile is caused, and further, the complicated various structure-soil interactions such as bridge abutment-post filling, pile foundation-soil, bridge abutment-soil-pile foundation-soil and the like are caused; therefore, for the integral bridge, special attention should be paid to the ability of adapting to horizontal reciprocating deformation of the lower structure abutment and the abutment bottom pile foundation and the scientific problems of reducing or weakening complex abutment-soil-pile foundation-soil interaction and the like; meanwhile, the lower structure reacts to the main beam of the upper structure, if the rigidity of the lower structure is too high, the shrinkage deformation of the main beam is greatly restricted to generate axial tension when the ambient temperature is reduced, so that the concrete main beam or the bridge deck is likely to be pulled apart, and therefore, the foundation of the lower structure bridge abutment or the abutment bottom pile has good flexibility besides enough deformability.
The invention content is as follows:
in view of the not enough of prior art, the utility model aims to solve the technical problem that a style of calligraphy frame steel abutment of assembled is provided, this type of calligraphy frame steel abutment of assembled mouth style of calligraphy frame steel abutment rigid frame structural integrity deformability is good, is applicable to the macroseism area, and reducible bridgehead jumps the car, the unstable phenomenon of driving.
The utility model discloses assembled mouth style of calligraphy frame steel abutment, include the girder and establish the decking on the girder, its characterized in that: h shaped steel pile has been buried underground in the soil layer of girder both ends below, at the fixed flexible abutment of steel that is equipped with in H shaped steel pile top, the lower part bench rear side horizontal fixation at the flexible abutment of steel is equipped with the steel grade beam, is equipped with the steel secondary abutment at the vertical fixed rear end of steel grade beam, the horizontal fixation is equipped with the steel back timber between flexible abutment of steel and the steel secondary abutment, one side and girder fixed connection that the steel back timber was kept away from to the flexible abutment of steel, steel grade beam, steel secondary abutment and steel back timber constitute a style of calligraphy frame, and it has EPS elastic material to fill in a style of calligraphy frame.
Furthermore, a lower groove is formed in the end, close to the steel flexible bridge abutment, of the main beam, a convex block extending towards the lower groove is formed in the steel flexible bridge abutment, the convex block of the steel flexible bridge abutment and the end of the main beam are fixedly connected through a high-strength bolt, and UHPC ultrahigh-performance concrete is poured above the convex block to form a UHPC cast-in-place section.
Furthermore, a pier is arranged below the middle part of the main beam.
Furthermore, the rear part of the steel secondary abutment is filled with post-abutment soil, a wiring road surface is arranged on the rear part of the steel top beam and the post-abutment soil, guide plates are arranged on the front part of the steel top beam and the steel flexible abutment, an expansion joint is arranged between the wiring road surface and the guide plates, and the UHPC cast-in-situ section is arranged between the guide plates and the bridge deck.
The utility model discloses a construction method of assembled type of a word as one speaks style of calligraphy frame steel abutment, wherein assembled type of a word as one speaks style of calligraphy frame steel abutment includes the girder and establishes the decking above the girder, H shaped steel pile has been buried underground in the soil layer below the girder both ends, the fixed steel flexible abutment that is equipped with above H shaped steel pile, the fixed steel ground beam that is equipped with in the lower part platform rear side level of steel flexible abutment, the fixed steel secondary abutment that is equipped with in the vertical fixed steel ground beam rear end, the fixed steel back timber that is equipped with of level between steel flexible abutment and the steel secondary abutment, steel flexible abutment keeps away from one side of steel back timber and is connected with girder fixed, steel flexible abutment, steel ground beam, steel secondary abutment and steel back timber constitute a word as one speaks style of calligraphy frame, and it has EPS elastic material to fill in a word as one speak; during construction, (1) excavating a road surface to a preset position, embedding a steel H-shaped pile foundation and fixedly arranging a steel flexible bridge abutment on the steel H-shaped pile foundation;
(2) sequentially connecting and fixing a steel ground beam and a steel secondary abutment, and arranging an EPS elastic material between the steel flexible abutment and the steel secondary abutment;
(3) fixing a steel top beam on the steel secondary abutment and the steel flexible abutment;
(4) carrying out high-strength bolt riveting on the main beam and the steel flexible bridge abutment, and then carrying out cast-in-place molding by using UHPC (ultra high performance concrete) to complete the construction of the assembled square frame steel bridge abutment;
(5) and finally, paving the bridge deck, the guide plate and the expansion joint.
Further, carry out the high strength bolt riveting to girder and flexible abutment of steel in above-mentioned step (4), specifically be: the end of the main beam close to the steel flexible bridge abutment is provided with a lower groove, the steel flexible bridge abutment is provided with a convex block extending towards the lower groove, the convex block of the steel flexible bridge abutment and the end of the main beam are riveted and fixed from top to bottom through the high-strength bolt, UHPC ultrahigh-performance concrete is poured above the convex block to form a UHPC cast-in-place section, and the UHPC cast-in-place section is positioned between the bridge deck and the guide plate.
The utility model discloses utilize flexible abutment of steel, steel back timber, steel secondary abutment and steel grade beam to form a "mouth" shape frame abutment overall structure, one side is used for keeping off the soil, the opposite side bears the internal force and the breathing of girder and warp, on the basis of rigidity abutment and light-duty thin wall abutment, combine the frame overall structure to obtain an assembled type of a mouthful style of calligraphy frame steel abutment, this type of a mouthful style of calligraphy just gentle combination formula abutment changes into the flexibility by the rigidity through "rigidity secondary abutment keeps off soil, flexible abutment-H shaped steel pile warp" optimization combination's mode; the flexibility and the deformability of the composite material are improved, the structure-soil interaction is weakened, the force transmission path is simplified, and the composite material has more reasonable stress performance; the gravity type rigid bridge abutment structure of the traditional bridge is changed to a great extent, and the undefined stress modes of complicated bridge abutment-soil interaction and pile-soil interaction of the existing integral bridge are effectively avoided; the EPS elastic material is adopted between the flexible bridge abutment and the secondary bridge abutment, so that the integral deformation capacity of the flexible bridge abutment can be improved, and the mode of 'soft-gram-rigid' is realized; and high-strength bolts are adopted for riveting the steel flexible bridge abutment and the main beam, and continuous rigid frame forming is realized by utilizing the characteristics of high strength, corrosion resistance, high fatigue resistance and the like of the UHPC material.
Compared with the prior art, the utility model discloses following beneficial effect has promptly: the bridge abutment structure of the seamless rigid frame also cancels the structures of expansion joints and expansion devices of the traditional bridge head of the bridge in sequence, reduces the phenomena of bumping at the bridge head and unstable driving, and reduces the maintenance cost of the expansion devices; meanwhile, the mouth-shaped frame bridge abutment rigid frame structure has good integral deformation performance, is suitable for strong earthquake areas, and can be repaired under the conditions of large earthquake and medium earthquake given by regulations. Small shock without damage.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Description of the drawings:
FIG. 1 is a schematic diagram of the construction of an embodiment of the present invention;
FIG. 2 is a partial perspective view of FIG. 1;
FIG. 3 is a partial cross-sectional view of FIG. 1;
in the figure: the method comprises the following steps of 1-steel flexible bridge abutment, 2-main girder, 3-steel top beam, 4-high-strength bolt, 5-UHPC cast-in-place section, 6-steel secondary bridge abutment, 7-steel ground beam, 8-EPS elastic material, 9-H type steel pile, 10-post filling, 11-original soil layer, 12-connecting road surface, 13-expansion joint, 14-guide plate, 15-bridge deck, 16-lower groove, 17-bridge pier and 18-bump.
The specific implementation mode is as follows:
in order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The utility model discloses an assembled square frame steel abutment, including girder 2 and decking 15 established on girder 2, H shaped steel pile 9 has been buried underground in the soil layer below girder 2 both ends, the width direction of girder 2 is the H shaped steel pile 9 that the interval was equipped with 3-4 groups, fixed steel flexible abutment 1 in the H shaped steel pile 9 top, the steelwork that this steel flexible abutment 1 precast made, the horizontal fixed steel grade 7 that is equipped with in the lower part platform rear side of steel flexible abutment 1, vertical fixed steel secondary abutment 6 that is equipped with in the steel grade 7 rear end, the horizontal fixed steel back timber 3 that is equipped with between steel flexible abutment 1 and the steel secondary abutment 6, steel flexible abutment 1 keeps away from one side of steel back timber and girder 2 fixed connection, foretell steel flexible abutment 1, steel grade 7, steel secondary abutment 6 and steel back timber 3 can be the square steel frame of integrative casting making, the width of the bridge deck can be integrated or made in sections, the steel flexible bridge abutment 1, the steel ground beam 7, the steel secondary bridge abutment 6 and the steel top beam 3 form a square-shaped frame, and EPS elastic materials 8 are filled in the square-shaped frame.
The aforementioned rear, rear side or rear end refers to a direction away from the center of the main beam 2.
Furthermore, in order to realize the connection between the main beam and the steel flexible bridge abutment, the end of the main beam close to the steel flexible bridge abutment is provided with a lower groove 16, the steel flexible bridge abutment is provided with a convex block 18 extending downwards from the groove, the convex block 18 of the steel flexible bridge abutment and the end of the main beam are fixedly connected through a high-strength bolt 4, and UHPC ultrahigh-performance concrete is poured above the convex block to form the UHPC cast-in-place section 5.
Further, in order to increase the strength of the middle part of the main beam, a pier 17 is arranged below the middle part of the main beam.
Further, in order to meet the use requirements, the rear part of the steel secondary abutment is provided with a post-abutment filling 10, the rear part of the steel top beam and the post-abutment filling are provided with a wiring road surface 12, the front part of the steel top beam and the steel flexible abutment are provided with a guide plate 14, an expansion joint 13 is arranged between the wiring road surface and the guide plate, the UHPC cast-in-place section 5 is also arranged between the guide plate 14 and the bridge deck 15, and the connecting road surface 12, the bridge deck 15 and the guide plate 14 are made of common concrete.
The utility model discloses a construction method of assembled type of calligraphy frame steel abutment, wherein assembled type of calligraphy frame steel abutment includes girder 2 and decking 15 of establishing on girder 2, H shaped steel pile 9 has been buried underground in the soil layer below girder 2 both ends, fixed steel flexible abutment 1 that is equipped with above H shaped steel pile 9, and the lower part platform rear side horizontal fixation at steel flexible abutment 1 is equipped with steel grade beam 7, and vertical fixation is equipped with steel secondary abutment 6 at steel grade beam 7 rear end, horizontal fixation is equipped with steel back timber 3 between steel flexible abutment 1 and the steel secondary abutment 6, one side that steel flexible abutment 1 kept away from the back timber is fixed connection with girder 2, and steel flexible abutment 1, steel grade beam 7, steel secondary abutment 6 and steel back timber 3 constitute the type of calligraphy frame, are filled with EPS elastic material 8 in the type of calligraphy frame of calligraphy; during construction, (1) excavating a road surface to a preset position, embedding a steel H-shaped pile foundation and fixedly arranging a steel flexible bridge abutment 1 on the steel H-shaped pile foundation;
(2) a steel ground beam 7 and a steel secondary abutment 6 are sequentially connected and fixed, and an EPS elastic material 8 is arranged between the steel flexible abutment 1 and the steel secondary abutment 6;
(3) fixing a steel top beam 3 on a steel secondary abutment 6 and a steel flexible abutment 1;
(4) riveting a main beam 2 and a steel flexible bridge abutment 1 by using a high-strength bolt 4, and then performing cast-in-place molding by using UHPC (ultra high performance concrete) to complete the construction of the assembled square frame steel bridge abutment;
(5) and finally, laying the bridge deck 15, the guide plates 14 and the expansion joints 13.
In the step (4), the main beam and the steel flexible bridge abutment are riveted by the high-strength bolt, and the method specifically comprises the following steps: the end of the main beam close to the steel flexible bridge abutment is provided with a lower groove 16, the steel flexible bridge abutment is provided with a convex block 18 extending towards the lower groove, the convex block 18 of the steel flexible bridge abutment and the end of the main beam are riveted and fixed from top to bottom through the high-strength bolt, then UHPC ultrahigh-performance concrete is poured above the convex block to form a UHPC cast-in-place section 5, and the UHPC cast-in-place section is positioned between the bridge deck and the guide plate.
The utility model discloses utilize flexible abutment of steel, steel back timber, steel secondary abutment and steel grade beam to form a "mouth" shape frame abutment overall structure, one side is used for keeping off the soil, the opposite side bears the internal force and the breathing of girder and warp, on the basis of rigidity abutment and light-duty thin wall abutment, combine the frame overall structure to obtain an assembled type of a mouthful style of calligraphy frame steel abutment, this type of a mouthful style of calligraphy just gentle combination formula abutment changes into the flexibility by the rigidity through "rigidity secondary abutment keeps off soil, flexible abutment-H shaped steel pile warp" optimization combination's mode; the flexibility and the deformability of the composite material are improved, the structure-soil interaction is weakened, the force transmission path is simplified, and the composite material has more reasonable stress performance; the gravity type rigid bridge abutment structure of the traditional bridge is changed to a great extent, and the undefined stress modes of complicated bridge abutment-soil interaction and pile-soil interaction of the existing integral bridge are effectively avoided; the EPS elastic material is adopted between the flexible bridge abutment and the secondary bridge abutment, so that the integral deformation capacity of the flexible bridge abutment can be improved, and the mode of 'soft-gram-rigid' is realized; and high-strength bolts are adopted for riveting the steel flexible bridge abutment and the main beam, and continuous rigid frame forming is realized by utilizing the characteristics of high strength, corrosion resistance, high fatigue resistance and the like of the UHPC material.
Compared with the prior art, the utility model discloses following beneficial effect has promptly: the bridge abutment structure of the seamless rigid frame also cancels the structures of expansion joints and expansion devices of the traditional bridge head of the bridge in sequence, reduces the phenomena of bumping at the bridge head and unstable driving, and reduces the maintenance cost of the expansion devices; meanwhile, the mouth-shaped frame bridge abutment rigid frame structure has good integral deformation performance, is suitable for strong earthquake areas, and can be repaired under the conditions of large earthquake and medium earthquake given by regulations. Small shock without damage.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (4)
1. The utility model provides an assembled type of a mouthful style of calligraphy frame steel abutment, includes the girder and establishes the decking on the girder, its characterized in that: h shaped steel pile has been buried underground in the soil layer of girder both ends below, at the fixed flexible abutment of steel that is equipped with in H shaped steel pile top, the lower part bench rear side horizontal fixation at the flexible abutment of steel is equipped with the steel grade beam, is equipped with the steel secondary abutment at the vertical fixed rear end of steel grade beam, the horizontal fixation is equipped with the steel back timber between flexible abutment of steel and the steel secondary abutment, one side and girder fixed connection that the steel back timber was kept away from to the flexible abutment of steel, steel grade beam, steel secondary abutment and steel back timber constitute a style of calligraphy frame, and it has EPS elastic material to fill in a style of calligraphy frame.
2. The fabricated square-frame steel abutment of claim 1, wherein: the end of the main beam close to the steel flexible bridge abutment is provided with a lower groove, the steel flexible bridge abutment is provided with a convex block extending towards the lower groove, the convex block of the steel flexible bridge abutment and the end of the main beam are fixedly connected through a high-strength bolt, and UHPC ultrahigh-performance concrete is poured above the convex block to form a UHPC cast-in-place section.
3. The fabricated square-frame steel abutment of claim 1, wherein: and a pier is arranged below the middle part of the main beam.
4. The fabricated square-frame steel abutment of claim 2, wherein: the rear part of the steel secondary abutment is provided with a post-abutment filling, the rear part of the steel top beam and the post-abutment filling are provided with wiring pavements, the front part of the steel top beam and the upper part of the steel flexible abutment are provided with guide plates, an expansion joint is arranged between the wiring pavements and the guide plates, and the UHPC cast-in-situ section is arranged between the guide plates and the bridge deck slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022328859.9U CN213571514U (en) | 2020-10-19 | 2020-10-19 | Assembled square frame steel abutment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022328859.9U CN213571514U (en) | 2020-10-19 | 2020-10-19 | Assembled square frame steel abutment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213571514U true CN213571514U (en) | 2021-06-29 |
Family
ID=76526052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022328859.9U Active CN213571514U (en) | 2020-10-19 | 2020-10-19 | Assembled square frame steel abutment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213571514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112058A (en) * | 2020-10-19 | 2020-12-22 | 福州大学 | Assembled square frame steel abutment and construction method thereof |
-
2020
- 2020-10-19 CN CN202022328859.9U patent/CN213571514U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112058A (en) * | 2020-10-19 | 2020-12-22 | 福州大学 | Assembled square frame steel abutment and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019237678A1 (en) | Structure of rigid frame bridge having abutments and construction method therefor | |
| CN205444475U (en) | Prefab and basic connected node | |
| CN109853381B (en) | Transitional structure for preventing bridge head from jumping and construction method thereof | |
| CN213038218U (en) | Predictive continuous rigid frame bridge capable of supplementing tensioning prestress | |
| CN108505406A (en) | A kind of full-prefabricated assembled concrete shipping suspension type monorail structure | |
| CN208346567U (en) | A kind of full-prefabricated assembled concrete shipping suspension type monorail structure | |
| Combault et al. | Rion-Antirion Bridge, Greece–concept, design, and construction | |
| CN101368370B (en) | Wind-proof temporary rest pier and wind-proof method for large span stayed-cable bridge cantilever construction | |
| CN213571514U (en) | Assembled square frame steel abutment | |
| CN215482258U (en) | Multi-damping system for segment-assembled single-column pier separated UHPC swinging bearing platform | |
| CN208167489U (en) | A kind of anti-girder of Single column pier bridge topples device | |
| CN104674645A (en) | Integral plate type small bridge and culvert combination applicable to soft soil foundations | |
| CN211171579U (en) | Take seamless antidetonation abutment of disconnect-type strap | |
| CN111733689A (en) | Novel large-span integral abutment rear packing device and construction method thereof | |
| CN109930469B (en) | Steel box girder thin-wall pier rigid frame cable-stayed bridge suitable for straddle type monorail | |
| CN111218886A (en) | Bias subway station and viaduct combined construction structure and construction method | |
| CN211645946U (en) | Structure suitable for large-span bridge abutment rigid frame bridge | |
| CN110735394A (en) | Cable tower structure and construction method thereof | |
| CN107905093B (en) | Multistage bridge abutment structure for improving rear soil settlement of bridge abutment and construction method thereof | |
| CN112112058A (en) | Assembled square frame steel abutment and construction method thereof | |
| CN110847010A (en) | Structure and construction method suitable for large-span bridge abutment rigid frame bridge | |
| CN210194449U (en) | Tower beam temporary consolidation structure for construction of main beam of semi-floating body system cable-stayed bridge | |
| CN211772757U (en) | Seamless anti-bumping structure for middle-small span simply-supported highway bridge end part | |
| Dai et al. | New Songhua river bridge: a continuous girder, tied arch, hybrid bridge with four rail tracks in Harbin, China | |
| CN218861322U (en) | Reduce whole bridge structure of abutment yawing force |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |