CN214401370U - Prefabricated viaduct structure of assembling of municipal administration - Google Patents
Prefabricated viaduct structure of assembling of municipal administration Download PDFInfo
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- CN214401370U CN214401370U CN202023259442.8U CN202023259442U CN214401370U CN 214401370 U CN214401370 U CN 214401370U CN 202023259442 U CN202023259442 U CN 202023259442U CN 214401370 U CN214401370 U CN 214401370U
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Abstract
The utility model discloses a municipal administration prefabricated assembled viaduct structure, which comprises a cast-in-situ bored pile; a plurality of bearing platform grouting sleeves are pre-embedded in the bearing platform below the groove, and the steel bars at the bottom ends of the prefabricated stand columns are connected and inserted into the corresponding bearing platform grouting sleeves; a plurality of capping beam grouting sleeves are pre-embedded in the bottom surface of the prefabricated capping beam and sleeved on the steel bar connecting heads corresponding to the top ends of the prefabricated stand columns; and a prefabricated box girder group is vertically erected on the top surface of the prefabricated capping beam. The advantages are that: the steel bar connectors at the bottom ends of the prefabricated stand columns are inserted into the corresponding bearing platform grouting sleeves, and the steel bar connectors at the top ends of the prefabricated stand columns are inserted into the corresponding bent cap grouting sleeves, so that the prefabricated bent cap and the prefabricated box girder group are quickly installed, the operation efficiency is improved, a large amount of pouring operation is not required to be carried out on site, and traffic jam is avoided; the on-site concrete pouring work amount is reduced, so that the bridge construction is more environment-friendly, less in interference, safer, high in quality and low in consumption.
Description
The technical field is as follows:
the utility model relates to a municipal administration bridge technical field, in particular to prefabricated viaduct structure of assembling of municipal administration.
Background art:
with the vigorous development of bridge construction in China, bridge construction environments in urban construction are more and more emphasized by governments, owners, design and construction units; although the construction of the traditional elevated bridge relates to a prefabricated box girder and a prefabricated capping girder, other constructed structures still need to be cast in place, and a construction method of casting concrete in place is adopted, and the ground at the bridge site position is used as a construction site, so that long-time traffic blocking can be caused, construction noise cannot be effectively controlled, construction equipment and auxiliary facilities need to be repeatedly configured along the line, and the problems of large resource and energy consumption, much financial and material waste and the like are caused; on the premise of ensuring the engineering quality, the method reduces the on-site concrete pouring engineering quantity, the construction occupied area and the construction period as much as possible, so that the bridge construction is more environment-friendly, less in interference, safer, high in quality and low in consumption, and is a problem to be solved; in addition, the viaduct constructed at present is generally applied to a low-intensity area with the seismic fortification intensity of 6-7 degrees, and is less applied to a high-intensity area with the intensity of more than 8 degrees, so that a prefabricated and assembled viaduct structure suitable for the high-intensity area is provided, and the bridge full-prefabricated assembling technology is popularized and applied in the high-intensity area.
The utility model has the following contents:
an object of the utility model is to provide a shorten on-the-spot time limit for a project, slow down the traffic and block and reduce the prefabricated viaduct structure of assembling of municipal administration of construction noise when being favorable to the construction.
The utility model discloses by following technical scheme implement: a municipal prefabricated assembled viaduct structure comprises a prefabricated box girder group and prefabricated capping girders; the cast-in-situ concrete pile also comprises a cast-in-situ bored pile, a prefabricated stand column and a bearing platform; the cast-in-situ bored pile is buried underground, and the top end of the cast-in-situ bored pile is fixedly connected with the bearing platform; the top surface of the bearing platform is provided with a groove, a plurality of bearing platform grouting sleeves are pre-embedded in the bearing platform below the groove, and the top ends of the bearing platform grouting sleeves are flush with the groove bottom of the groove; reinforcing steel bar connectors extend outwards from the top end and the bottom end of the prefabricated stand column, the reinforcing steel bars at the bottom end of the prefabricated stand column are connected and inserted into the corresponding bearing platform grouting sleeves, the bottom surface of the prefabricated stand column is abutted against the bottom surface of the groove, and high-strength mortar is filled between the inner wall of the groove and the prefabricated stand column; a plurality of bent cap grouting sleeves are pre-embedded in the bottom surfaces of the prefabricated bent caps, and the bottom ends of the bent cap grouting sleeves are flush with the bottom surfaces of the prefabricated bent caps; the capping beam grouting sleeve is sleeved on the steel bar connecting head corresponding to the top end of the prefabricated stand column, and the top end of the prefabricated stand column is abutted to the bottom surface of the prefabricated capping beam; and the prefabricated box girder group is vertically erected on the top surface of the prefabricated capping beam.
And furthermore, a damping support is arranged between the prefabricated capping beam and the prefabricated box girder group, a bottom plate of the damping support is fixedly connected with the prefabricated capping beam through embedded bolts, and a top plate of the damping support is fixedly connected with the prefabricated box girder group through embedded bolts.
Furthermore, flanges which are integrally formed with the prefabricated capping beam are prefabricated at two ends of the prefabricated capping beam.
Furthermore, the prefabricated box girder assembly also comprises prefabricated anti-collision walls, wherein the anti-collision walls are respectively arranged on the edges of two sides of the top surface of the prefabricated box girder assembly; the prefabricated box girder assembly is characterized in that limiting holes are prefabricated in the edges of two sides of the top surface of the prefabricated box girder assembly, and limiting pins inserted into the corresponding limiting holes are fixed on the bottom surface of the anti-collision wall.
Furthermore, two limiting tables which are symmetrically arranged relative to the center line of the precast box girder set are fixed on the top surface of the precast capping beam.
The utility model has the advantages that: the utility model discloses a steel bar connector of prefabricated stand bottom inserts in the pile cap grout sleeve that corresponds, and the steel bar connector of prefabricated stand top inserts in the bent cap grout sleeve that corresponds, realizes the quick installation of prefabricated bent cap and prefabricated box girder group, improves the operating efficiency, and need not carry out a large amount of pouring operations at the scene moreover, avoids the traffic jam; the utility model discloses a construction of overhead bridge is realized to prefabricated structure of assembling, reduces on-the-spot concrete placement engineering volume, reduces construction area and construction period, makes the bridge construction more environmental protection, less interference, safer, high quality and low consumption, in addition, the utility model discloses still be applicable to the high intensity district more than 8 degrees.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
The parts in the drawings are numbered as follows: the cast-in-situ bored concrete pile comprises a cast-in-situ bored pile 1, a bearing platform 2, a groove 2.1, a bearing platform grouting sleeve 3, a steel bar connector 4, high-strength mortar 5, a prefabricated upright post 6, a prefabricated capping beam 7, a prefabricated box girder group 8, a limiting hole 8.1, an anti-collision wall 9, a limiting pin 10, a shock absorption support 11, a limiting platform 12, a capping beam grouting sleeve 13 and a flange 14.
The specific implementation mode is as follows:
as shown in fig. 1, the municipal prefabricated assembled viaduct structure comprises a prefabricated box girder group 8 and prefabricated capping girders 7; the cast-in-situ bored concrete pile comprises a cast-in-situ bored pile 1, a prefabricated upright post 6 and a bearing platform 2; the cast-in-situ bored pile 1 is buried underground, the top end of the cast-in-situ bored pile 1 is fixedly connected with a bearing platform 2, and the cast-in-situ bored pile 1 and the bearing platform 2 are of reinforced concrete pouring structures; a groove 2.1 is formed in the top surface of the bearing platform 2, and a plurality of bearing platform grouting sleeves 3 pre-embedded in the bearing platform 2 are vertically inserted into the groove bottom of the groove 2.1; the top end and the bottom end of the prefabricated stand column 6 both extend outwards to form a steel bar connector 4, steel bars at the bottom end of the prefabricated stand column 6 are connected and inserted into the corresponding bearing platform grouting sleeve 3, the bottom surface of the prefabricated stand column 6 is abutted to the bottom surface of the groove 2.1, the inner wall of the groove 2.1 is attached to the prefabricated stand column 6, high-strength mortar 5 is filled between the inner wall of the groove 2.1 and the prefabricated stand column 6, the durability of the splicing surface of the prefabricated stand column 6 and the bearing platform 2 and the shearing resistance bearing capacity of the splicing seam can be improved, rainwater and snow water can be prevented from flowing into the gap between the prefabricated stand column 6 and the bearing platform 2 to rust concrete steel bars, and the strength of the whole structure is ensured; a plurality of bent cap grouting sleeves 13 are pre-embedded in the bottom surfaces of the prefabricated bent caps 7, and the bottom ends of the bent cap grouting sleeves 13 are flush with the bottom surfaces of the prefabricated bent caps 7; the capping beam grouting sleeve 13 is sleeved on the steel bar connector 4 corresponding to the top end of the prefabricated stand column 6, and the top end of the prefabricated stand column 6 is abutted against the bottom surface of the prefabricated capping beam 7; a precast box girder group 8 is vertically erected on the top surface of the precast capping beam 7; the utility model discloses a construction of elevated bridge is realized to prefabricated mode of assembling, reduces on-the-spot concrete placement engineering volume, reduces construction area and construction period, makes the bridge construction more environmental protection, less interference, safer, high quality and low consumption, in addition, the utility model discloses still be applicable to the high intensity district more than 8 degrees.
A damping support 11 is arranged between the prefabricated capping beam 7 and the prefabricated box girder group 8, a bottom plate of the damping support 11 is fixedly connected with the prefabricated capping beam 7 through an embedded bolt, and a top plate of the damping support 11 is fixedly connected with the prefabricated box girder group 8 through an embedded bolt; the shock absorption support 11 is a lead core rubber support, the pre-buried bolts on the prefabricated bent cap 7 are fixedly connected with a bottom plate of the shock absorption support 11, and the pre-buried steel plate and the bolts on the bottom surface of the prefabricated box girder group 8 are connected with a top plate of the shock absorption support 11, so that an effective shock absorption effect is achieved during an earthquake; flanges 14 which are integrally formed with the precast capping beams 7 are precast at two ends of the precast capping beams 7, and a distance of not less than 10cm is reserved between the flanges 14 and the precast box girder group 8 and is used as the transverse displacement of the precast box girder group 8 during earthquake.
The prefabricated box girder assembly is characterized by also comprising prefabricated anti-collision walls 9, wherein the anti-collision walls 9 are respectively arranged on the edges of two sides of the top surface of the prefabricated box girder assembly 8; limiting holes 8.1 are prefabricated in the edges of two sides of the top surface of the prefabricated box girder group 8, and limiting pins 10 inserted into the corresponding limiting holes 8.1 are fixed on the bottom surface of the anti-collision wall 9; through the matching of the limiting hole 8.1 and the limiting pin 10, the prefabricated anti-collision wall 9 is convenient to disassemble and assemble; two limiting tables 12 which are symmetrically arranged relative to the central line of the precast box girder group 8 are fixed on the top surface of the precast capping girder 7, the distance between each limiting table 12 and the adjacent precast box girder is 2cm-4cm, the distance between the top end of each limiting table 12 and the top plate of the precast box girder group 8 is not less than 5cm, and the limiting tables 12 can play a role in limiting displacement of the precast box girder group 8 during normal use or under the condition of slight earthquake; when the earthquake is serious, the precast box girder group 8 can be broken off by the limit station 12, the acting force of the precast box girder group 8 is not transmitted to the lower main body of the bridge by the limit station 12, the lower main body of the bridge is prevented from being damaged, and the bearing burden of the lower main body structure of the bridge under the action of the earthquake is reduced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A municipal prefabricated assembled viaduct structure comprises a prefabricated box girder group and prefabricated capping girders; the cast-in-situ concrete pile is characterized by further comprising a cast-in-situ bored pile, a prefabricated stand column and a bearing platform; the cast-in-situ bored pile is buried underground, and the top end of the cast-in-situ bored pile is fixedly connected with the bearing platform; the top surface of the bearing platform is provided with a groove, a plurality of bearing platform grouting sleeves are pre-embedded in the bearing platform below the groove, and the top ends of the grouting sleeves are flush with the groove bottom of the groove; reinforcing steel bar connectors extend outwards from the top end and the bottom end of the prefabricated stand column, the reinforcing steel bars at the bottom end of the prefabricated stand column are connected and inserted into the corresponding bearing platform grouting sleeves, the bottom surface of the prefabricated stand column is abutted against the bottom surface of the groove, and high-strength mortar is filled between the inner wall of the groove and the prefabricated stand column; a plurality of bent cap grouting sleeves are pre-embedded in the bottom surfaces of the prefabricated bent caps, and the bottom ends of the bent cap grouting sleeves are flush with the bottom surfaces of the prefabricated bent caps; the capping beam grouting sleeve is sleeved on the steel bar connecting head corresponding to the top end of the prefabricated stand column, and the top end of the prefabricated stand column is abutted to the bottom surface of the prefabricated capping beam; and the prefabricated box girder group is vertically erected on the top surface of the prefabricated capping beam.
2. The municipal precast assembled viaduct structure according to claim 1, wherein a shock mount is arranged between the precast capping beam and the precast box girder assembly, a bottom plate of the shock mount is fixedly connected with the precast capping beam through embedded bolts, and a top plate of the shock mount is fixedly connected with the precast box girder assembly through embedded bolts.
3. The municipal precast assembled viaduct structure according to claim 1, wherein both ends of the precast capping beam are precast with flanges integrally formed with the precast capping beam.
4. The municipal prefabricated assembled viaduct structure according to any one of claims 1 to 3, further comprising prefabricated impact walls, wherein the impact walls are respectively arranged on two side edges of the top surface of the prefabricated box girder group; the prefabricated box girder assembly is characterized in that limiting holes are prefabricated in the edges of two sides of the top surface of the prefabricated box girder assembly, and limiting pins inserted into the corresponding limiting holes are fixed on the bottom surface of the anti-collision wall.
5. The municipal precast assembled viaduct structure according to claim 4, wherein two stop blocks are fixed on the top surface of the precast capping beam, and the two stop blocks are symmetrically arranged with respect to the center line of the precast box girder group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023259442.8U CN214401370U (en) | 2020-12-29 | 2020-12-29 | Prefabricated viaduct structure of assembling of municipal administration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023259442.8U CN214401370U (en) | 2020-12-29 | 2020-12-29 | Prefabricated viaduct structure of assembling of municipal administration |
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| CN214401370U true CN214401370U (en) | 2021-10-15 |
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| CN202023259442.8U Active CN214401370U (en) | 2020-12-29 | 2020-12-29 | Prefabricated viaduct structure of assembling of municipal administration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808654A (en) * | 2022-05-18 | 2022-07-29 | 中交一公局集团有限公司 | Fully-prefabricated assembled bridge and construction method thereof |
| CN117661432A (en) * | 2024-01-30 | 2024-03-08 | 中建八局第二建设有限公司 | Pier structure anchored by high-strength steel bars |
-
2020
- 2020-12-29 CN CN202023259442.8U patent/CN214401370U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808654A (en) * | 2022-05-18 | 2022-07-29 | 中交一公局集团有限公司 | Fully-prefabricated assembled bridge and construction method thereof |
| CN117661432A (en) * | 2024-01-30 | 2024-03-08 | 中建八局第二建设有限公司 | Pier structure anchored by high-strength steel bars |
| CN117661432B (en) * | 2024-01-30 | 2024-04-16 | 中建八局第二建设有限公司 | Pier structure anchored by high-strength steel bars |
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