CN211973077U - Bridge pier column that segment prefabrication was assembled - Google Patents
Bridge pier column that segment prefabrication was assembled Download PDFInfo
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- CN211973077U CN211973077U CN202020556125.3U CN202020556125U CN211973077U CN 211973077 U CN211973077 U CN 211973077U CN 202020556125 U CN202020556125 U CN 202020556125U CN 211973077 U CN211973077 U CN 211973077U
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- vertical steel
- pier stud
- steel bars
- pier
- pier column
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- 238000009417 prefabrication Methods 0.000 title claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 239000004567 concrete Substances 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a bridge pier stud assembled by segment prefabrication, which comprises a bearing platform, a pier stud body and a bent cap connecting segment arranged from bottom to top, wherein the pier stud body is assembled by segment prefabrication and comprises a plurality of same pier stud segments; the lower part of each pier column segment is provided with a convex frustum pyramid, the upper part of each pier column segment is provided with a frustum pyramid groove, the shapes and the sizes of the frustum pyramid and the frustum pyramid frustum pyramid are mutually nested in a clearance mode, vertical steel bars are embedded in the pier column segments and protrude upwards, and grouting sleeves are arranged at the lower ends of the vertical steel bars and connected with the vertical steel bars; the upper part of the bearing platform is an annular bulge, vertical steel bars are pre-embedded and protrude upwards, and a prismatic table groove is formed in the annular bulge on the upper part of the bearing platform; the lower part of the bent cap connecting section is a convex frustum which is embedded with a frustum groove at the upper part of the pier stud section in a clearance manner, vertical steel bars are pre-embedded in the frustum of the bent cap connecting section, and a grouting sleeve is arranged at the bottom of each vertical steel bar and connected with the vertical steel bar. This bridge pier stud can guarantee that concrete placement can not influence holistic shock resistance between pier stud body and cushion cap, the pier stud subsection, and the atress is better, and the structure is more stable.
Description
Technical Field
The utility model belongs to the technical field of assembled bridge construction technique and specifically relates to a bridge pier stud that prefabricated section of jurisdiction was assembled.
Background
In the modern reinforced concrete bridge construction, pier columns and capping beams are prefabricated in a factory in a segmented manner in a prefabrication stage and transported to the site for assembly, and the construction technology has the advantages of convenience in transportation, guaranteed component quality, great reduction in site construction operation, high construction speed, short construction period, environmental friendliness and the like, and can be gradually developed into the mainstream direction of the municipal traffic engineering and railway engineering construction technology in the future;
in the bridge structure, the pier stud is an important lateral force resistant component, and the manufacturing quality of the pier stud directly influences the seismic performance of the whole bridge; in the field assembly technology of the existing prefabricated sections, the field assembly of the pier stud mainly has two modes of a dry joint and a wet joint, the two assembling modes have the problem that concrete pouring between the sections of the pier stud and the bearing platform and the pier stud is discontinuous, further the integrity of the pier stud is insufficient, and the anti-seismic performance of the pier stud is influenced, so that the section prefabricated assembled bridge pier stud which can ensure that the concrete pouring between the pier stud and the bearing platform and between the pier stud sections cannot influence the anti-seismic performance of the pier stud is urgently needed in the industry.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is: the utility model provides a can guarantee that concrete placement can not lead to the fact the influence to holistic shock resistance between pier stud body and cushion cap, pier stud subsection, the atress is better, and the structure is more stable, and the bridge pier stud of assembling is prefabricated to the more convenient section of construction.
The technical scheme of the utility model is that: the utility model provides a bridge pier stud that section prefabrication was assembled, includes cushion cap, pier stud body and bent cap coupling segment that sets up from bottom to top, its characterized in that: the pier column body is prefabricated and assembled in a sectional mode and comprises a plurality of same pier column sections; the lower part of the pier column section is a convex prismatic table, the upper part of the pier column section is an annular bulge, a prismatic table groove is arranged in the annular bulge, the shapes and the sizes of the prismatic table and the prismatic table groove are mutually nested in a clearance mode, vertical steel bars are pre-embedded in the annular bulge of the pier column section and protrude upwards, and grouting sleeves are arranged at the lower ends of the vertical steel bars and connected with the lower end of the vertical steel bars and exposed out of the lower part of the pier column section; the upper part of the bearing platform is an annular bulge, vertical steel bars are pre-embedded and protrude upwards, and a prismatic table groove nested with a prismatic table gap protruding from the lower part of the pier column section is formed in the annular bulge on the upper part of the bearing platform; the lower portion of the bent cap connecting section is a convex prismatic table, vertical steel bars are pre-embedded in the convex prismatic table, a grouting sleeve is arranged at the bottom of each vertical steel bar and connected with the vertical steel bar, and the convex prismatic table at the lower portion of the bent cap connecting section is nested with a prismatic table groove at the upper portion of the pier stud section in a clearance mode.
Furthermore, the bent cap connecting section and the pier column section of the pier column body are prefabricated.
Preferably, the surfaces of the bent cap connecting sections and the pier stud sections are roughened by a water flushing method after the bent cap connecting sections and the pier stud sections are prefabricated and have equal strength.
Of course, more preferably, the bearing platform and the annular raised frustum groove positioned at the upper part of the bearing platform are cast in situ in a whole.
Furthermore, each terrace with edge and each terrace with edge recess are the clearance nestification, and during the actual implementation, the volume of terrace with edge slightly is less than the volume of terrace with edge recess to pour into the mortar into.
Furthermore, the vertical steel bars and the grouting sleeves of the pier column sections vertically penetrate through the pier column sections, the upper parts of the vertical steel bars protrude out of the pier column sections, the lower parts of the vertical steel bars are connected with the grouting sleeves, and the lower openings of the grouting sleeves are exposed out of the bottoms of the pier column sections.
The utility model has the advantages that:
1. the utility model discloses an in the pier stud body, from last to the area of each pier stud segment section's junction cross-section down almost equal, consequently, its cross sectional characteristic is also similar the same, and the mechanics structure is more firm.
2. The utility model discloses a connection between pier stud segment, bent cap coupling segment, the cushion cap adopts terrace with edge recess clearance nested connection each other, has increased the bonding surface between each prefabricated segment, between prefabricated segment and the cushion cap by a wide margin, and a advantage in the recombination makes the utility model discloses a pier stud has very good wholeness, and the atress is better, and the structure is more stable, and can guarantee that concrete placement can not cause the influence to the holistic shock resistance of bridge pier stud between pier stud body and cushion cap, the pier stud segment to wholly obtain the anti-seismic performance of preferred.
3. The utility model discloses the supporting connection structure in convex terrace with edge groove gap that well adopted for each junction all has very good atress performance.
4. The utility model discloses a whole cast-in-place mode of cushion cap has ensured to have good atress performance between the bellied terrace with edge recess of annular on cushion cap and the cushion cap.
Drawings
The invention will be further described with reference to the following drawings and examples:
FIG. 1 is an overall view of the utility model after assembly;
fig. 2 is a front view of a pier stud segment according to the present invention;
FIG. 3 is a front view of the platform of the present invention;
fig. 4 is a top view of the pier stud segment of the present invention;
fig. 5 is a bottom view of the pier stud segment of the present invention;
FIG. 6 is a front view of a cap beam coupling segment according to the present invention;
fig. 7 is a bottom view of the cap beam connecting section according to the present invention.
Wherein: 1. the capping beam connecting segment; 2. a pier stud segment; 3. an annular projection; 4. a bearing platform; 5. vertical reinforcing steel bars; 6. grouting a casing pipe; 7. a prismatic table; 8. a prismatic table groove.
Detailed Description
Example (b): a bridge pier column with prefabricated and assembled sections comprises a bearing platform 4, a pier column body and a bent cap connecting section 1 which are arranged from bottom to top, wherein the pier column body is prefabricated and assembled in a sectional mode and is formed by splicing a plurality of identical pier column sections 2; the lower part of the pier column section 2 is provided with a convex frustum pyramid 7, the upper part of the pier column section 2 is provided with an annular bulge 3, a frustum pyramid groove 8 is arranged in the annular bulge 3, the frustum pyramid groove 3 and the frustum pyramid 7 are nested in a mutually clearance mode, the annular bulge of the pier column section 2 is pre-embedded with vertical steel bars 5 and protrudes upwards, and the lower ends of the vertical steel bars 5 are all provided with grouting sleeves 6 which are connected with the vertical steel bars and are exposed out of the lower part of the pier column section 2; the upper part of the bearing platform 4 is provided with an annular bulge 3, vertical steel bars 5 are pre-embedded and protrude upwards, and a prismatic table groove 8 which is nested with a prismatic table 7 protruding from the lower part of the pier column section 2 in a clearance mode is arranged in the annular bulge 3 at the upper part of the bearing platform 4; the lower portion of the bent cap connecting section 1 is a convex prismatic table 7, vertical steel bars 5 are pre-embedded, grouting sleeves 6 are arranged at the bottoms of the vertical steel bars 5 to be connected with the vertical steel bars, and the convex prismatic table 7 at the lower portion of the bent cap connecting section 1 and the prismatic table groove 8 at the upper portion of the pier stud section 2 are nested in a clearance mode.
In this embodiment, the cap beam connecting section 1 and the pier stud section 2 of the pier stud body are both prefabricated.
In this embodiment, the surface of the capping beam connecting section 1 and the surface of the pier stud section 2 are roughened by a water flushing method after the capping beam connecting section 1 and the pier stud section 2 are prefabricated and have equal strength.
Referring to fig. 3, the bearing platform 4 and the frustum groove 8 of the annular protrusion 3 on the upper portion of the bearing platform 4 are cast in situ as a whole, so that the connection point between the bearing platform and the frustum groove is ensured to be integral, and the stress performance of the bearing platform is enhanced.
As shown in fig. 1, 2, 3, and 6, each of the frustum pyramid 7 and the frustum pyramid groove 8 in each of the annular protrusions 3 are in a clearance nesting for injecting mortar, that is, the frustum pyramid 7 has a shape and a volume slightly smaller than the frustum pyramid groove 8, so that the mortar can fill the contact surface of the frustum pyramid after the mortar is injected.
As shown in fig. 1, fig. 3, fig. 4, fig. 5, and fig. 7, the vertical steel bars 5 and the grouting sleeves 6 of the pier stud segments 2 vertically penetrate through the pier stud segments, the pier stud segments 2 protrude from the upper portions of the vertical steel bars 5, the lower portions of the vertical steel bars are connected with the grouting sleeves 6, and the lower openings of the grouting sleeves 6 expose the bottoms of the pier stud segments 2.
Typically, in practical application, the pier column segment 2 and the cap beam connecting segment 1 are prefabricated according to design requirements, and after the strength is equal, the surfaces of the pier column segment 2 and the cap beam connecting segment 1 are subjected to water flushing roughening treatment;
then, integrally pouring a bearing platform 4 on a construction site according to design requirements, and carrying out water flushing roughening treatment on the surface of the bearing platform after the strength is equal;
then, injecting mortar into the frustum groove 8 at the upper part of the bearing platform according to the design requirements, wherein the amount of the injected mortar is based on the contact surface between the frustum groove 8 and the frustum 7 when the frustum groove and the frustum 7 are nested and the design requirements required by bonding; hoisting the first pier stud segment 2, inserting the vertical reinforcing steel bars 5 which are pre-embedded on the bearing platform 4 and protrude upwards into the grouting sleeve 6 at the lower part of the first pier stud segment 1, and pressing the prismatic table 7 of the pier stud segment 2 into the prismatic table groove 8 at the upper part of the bearing platform 4 and compressing; then grouting is carried out in the grouting sleeve 6, mortar overflowing from the bearing platform 4 and the first pier stud segment 2 is cleaned, and the surface of the joint is scraped;
repeating the steps, and continuing to hoist the rest pier stud sections 2 until all the pier stud sections 2 are hoisted and spliced to form the pier stud body;
finish at the 2 hoists of last section pier stud segment, also be the pier stud body construction after accomplishing, carry out the hoist and mount of bent cap coupling segment 1: mortar is injected into the prismatic table groove 8 of the last pier stud section 2 according to design requirements, then the bent cap connecting section 1 is lifted, the vertical steel bars 5 which are upward emerged from the last pier stud section 2 are inserted into the grouting sleeve 6 of the bent cap connecting section 1, and meanwhile, the prismatic table 7 of the bent cap connecting section 1 is pressed into the prismatic table groove 8 of the last pier stud section 2 and is compressed.
Therefore, the utility model discloses a bridge pier stud that prefabricated assembly of festival section is whole hoists and finishes.
The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a bridge pier stud that section prefabrication was assembled, includes cushion cap (4), pier stud body and bent cap coupling segment (1) that set up from bottom to top, its characterized in that: the pier column body is prefabricated and assembled in a sectional mode and comprises a plurality of same pier column sections (2); the lower part of the pier column section (2) is provided with a convex frustum pyramid (7), the upper part of the pier column section is provided with an annular bulge (3), a frustum pyramid groove (8) is formed in the annular bulge (3), the annular bulge and the frustum pyramid (7) are nested in a clearance manner, vertical steel bars (5) are pre-embedded in the annular bulge (3) of the pier column section (2) and protrude upwards, and grouting sleeves (6) are arranged at the lower ends of the vertical steel bars (5) and connected with the vertical steel bars and exposed out of the lower part of the pier column section (2); the upper part of the bearing platform (4) is provided with an annular bulge (3), vertical steel bars (5) are pre-embedded and protrude upwards, and a prismatic table groove (8) which is nested with a prismatic table (7) protruding from the lower part of the pier column section (2) in a clearance mode is formed in the annular bulge (3) at the upper part of the bearing platform; the lower portion of the bent cap connecting section (1) is a convex prismatic table (7), vertical steel bars (5) are pre-embedded, a grouting sleeve (6) is arranged at the bottom of each vertical steel bar (5) to be connected with the vertical steel bar, and the convex prismatic table (7) at the lower portion of the bent cap connecting section (1) and a prismatic table groove (8) at the upper portion of the pier column section (2) are nested in a clearance mode.
2. The bridge pier stud assembled by prefabricating sections according to claim 1, wherein the capping beam connecting section (1) and the pier stud section (2) of the pier stud body are both prefabricated.
3. The bridge pier stud assembled by prefabricating sections according to claim 2, wherein the capping beam connecting sections (1) and the pier stud sections (2) are prefabricated and strengthened and then the surfaces of the capping beam connecting sections and the pier stud sections are roughened by a water flushing method.
4. The bridge pier column prefabricated and assembled by sections according to claim 1, wherein the bearing platform (4) and the frustum groove (8) of the annular protrusion (3) positioned at the upper part of the bearing platform (4) are cast in situ as a whole.
5. The bridge pier column prefabricated and assembled by sections according to claim 1, wherein gaps for injecting mortar are nested between the frustum pyramid (7) and the frustum pyramid grooves (8).
6. The bridge pier column with prefabricated and assembled segments according to claim 1, wherein vertical steel bars (5) and grouting sleeves (6) of the pier column segments (2) vertically penetrate through the bridge pier column, the upper portions of the vertical steel bars (5) protrude out of the pier column segments (2), the lower portions of the vertical steel bars are connected with the grouting sleeves (6), and the lower openings of the grouting sleeves (6) expose out of the bottoms of the pier column segments (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020556125.3U CN211973077U (en) | 2020-04-15 | 2020-04-15 | Bridge pier column that segment prefabrication was assembled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020556125.3U CN211973077U (en) | 2020-04-15 | 2020-04-15 | Bridge pier column that segment prefabrication was assembled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211973077U true CN211973077U (en) | 2020-11-20 |
Family
ID=73385556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020556125.3U Active CN211973077U (en) | 2020-04-15 | 2020-04-15 | Bridge pier column that segment prefabrication was assembled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211973077U (en) |
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2020
- 2020-04-15 CN CN202020556125.3U patent/CN211973077U/en active Active
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