CN113481813A - Pier prefabricated splicing type viaduct capable of shortening construction period - Google Patents
Pier prefabricated splicing type viaduct capable of shortening construction period Download PDFInfo
- Publication number
- CN113481813A CN113481813A CN202110765592.6A CN202110765592A CN113481813A CN 113481813 A CN113481813 A CN 113481813A CN 202110765592 A CN202110765592 A CN 202110765592A CN 113481813 A CN113481813 A CN 113481813A
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- steel
- barb
- sleeve
- viaduct
- construction period
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D1/00—Bridges in general
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
Abstract
The invention relates to a bridge pier prefabricated spliced viaduct, which comprises a bridge plate and a plurality of bridge piers for supporting the bridge plate, wherein each bridge pier comprises subsections which are distributed along the vertical direction and are connected together through a plurality of splicing structures, each splicing structure comprises a subsection steel thread head positioned below and a subsection upper steel thread head positioned above, the lower steel thread head is in threaded connection with a steel inner thread sleeve provided with a steel connecting cylinder, the upper steel thread head is in threaded connection with a connecting steel sleeve, the steel connecting cylinder penetrates through the connecting steel sleeve and is provided with a clamping ring groove, an inclined bottom sliding groove is arranged on the inner circumferential surface of the connecting steel sleeve, a steel barb is in sliding connection with the inclined bottom sliding groove, a barb downward moving spring for driving all the steel barbs to slide downwards is arranged in the connecting steel sleeve, and the steel barb is hooked in the clamping ring groove. The invention has the advantage of shortening the construction period and solves the problems of long construction period and inconvenience in building the formwork support frame when the bridge pier of the existing viaduct is of a cast-in-place structure and the bridge pier is high.
Description
The application is a divisional application with the name of 'bridge pier prefabricated splicing type viaduct', which is application number 2020106440138, and is number 07/2020.
Technical Field
The invention relates to the technical field of bridge road construction, in particular to a bridge pier prefabricated splicing type viaduct.
Background
Can often build the viaduct in the capital construction work progress, the viaduct includes the pier and supports the decking on the pier, some supports some for the directness of the support of decking, some supports the decking for setting up the crossbeam on the pier, no matter how high of current pier, all form for upwards pouring in proper order from the following, also the pier all is cast-in-place, cast-in-place mode not only leads to the construction cycle long, it is very inconvenient to build the template support frame that supports fixed die plate when the pier is high moreover.
Disclosure of Invention
The invention provides a pier prefabricated spliced viaduct capable of shortening the construction period, and solves the problems that the construction period is long when the pier of the existing viaduct is in a cast-in-place structure, and the construction period is long and the construction of a formwork support frame is inconvenient.
The technical problem is solved by the following technical scheme: a prefabricated spliced viaduct for piers comprises a plurality of piers and bridge plates supported on the piers, wherein the piers comprise subsections distributed along the upper direction and the lower direction, adjacent subsections are connected together through a plurality of splicing structures, each splicing structure comprises a lower steel thread head poured on the upper end face of the subsection positioned below and an upper steel thread head poured on the lower end face of the subsection positioned above, the lower steel thread heads are in threaded connection in a steel internal thread sleeve, a steel connecting cylinder is arranged on the upper end face of the steel internal thread sleeve, a connecting steel sleeve is in threaded connection on the upper steel thread head, the steel connecting cylinder is arranged in the connecting steel sleeve in a penetrating mode, a steel chuck is arranged on the steel connecting cylinder, a clamping ring groove extending along the circumferential direction of the steel connecting cylinder is formed between the steel chuck and the steel connecting cylinder, a plurality of inclined bottom sliding grooves extending along the circumferential direction of the connecting steel sleeve are arranged on the inner circumferential surface of the connecting steel sleeve, the steel barb clamping device is characterized in that the bottom wall of the inclined bottom sliding groove is inclined towards the direction that the outer peripheral face of the connecting steel sleeve is closed towards the upper end, a steel barb is connected in the inclined bottom sliding groove in a sliding mode, a barb downward moving spring for driving all the steel barbs to slide downwards is arranged in the connecting steel sleeve, and the steel barb is hooked in the clamping ring groove. According to the technical scheme, the bridge pier is prefabricated by multiple sections and then is formed by hoisting and splicing on site, so that the construction period can be shortened and a template does not need to be built. The splicing mechanism enables the steel barbs to be separated through the spring back so that the steel clamping discs can penetrate through the steel barbs, and then the steel barbs reset under the driving action of the spring and are clamped in the clamping ring grooves, so that the steel barbs can be hooked in a closed space. Avoidance in the hooking process is not completed through elastic deformation of the barb, so that the driving of the steel barb and the clamping ring groove can be designed to be high in strength to meet the connecting requirement of a high bridge.
The invention is also provided with a hooking in-place detection mechanism for detecting whether the steel barb is hooked into the clamping ring groove, wherein the hooking in-place detection mechanism comprises a vertical sliding hole which is arranged in the steel connecting cylinder and extends into the steel disc, an insulating cylinder which is arranged at the lower end of the vertical sliding hole and has an opening at the upper end, a conductive post which is connected in the vertical sliding hole in a sliding manner, a plurality of horizontal sliding holes which are distributed along the circumferential direction of the steel disc and extend in the radial direction and are positioned in the steel disc and communicated with the vertical sliding hole, a horizontal sliding pin which is arranged in the horizontal sliding hole in a penetrating manner, and two wiring through holes which penetrate into the insulating cylinder, wherein the conductive post is provided with a permanent magnet which enables the conductive post to be hung in the vertical sliding hole and to be kept in contact with the horizontal sliding pin. In the assembling process, the insulating skin at the end parts of the two power lines with the insulating skins is stripped to expose one section of core wire, the two power lines are inserted into the two wiring through holes in a one-to-one correspondence mode, the exposed section of the core wire is located on the insulating cylinder, one pin of the indicating lamp is connected with the same power line, the other pin of the indicating lamp is connected with one end of the power supply, and the other end of the power supply is connected with the other power line. Then the upper section moves downwards to enable the connecting steel sleeve to be sleeved on the steel connecting cylinder, if the steel barb is hooked into the clamping ring groove, the steel clamping disc can extrude the horizontal sliding pin from the steel barb in the process of passing by and through the steel barb, the horizontal sliding pin drives the conductive column to move downwards to press the exposed section of the core wires of the two power lines, so that the indicator lamp is connected with the power supply, and the indicator lamp is bright. That is, the indicator light is on to indicate that the assembly is in place, and if the indicator light is not on, the assembly is not in place. Under the effect of permanent magnet, avoid leading to the erroneous judgement that presses the power cord when leading electrical pillar not receiving the pushing down effect of horizontal sliding pin promptly.
Preferably, a connection column part reversing surface for converting horizontal movement into vertical movement is arranged between the upper end of the conductive column and the inner end of the horizontal sliding pin. The reliability of the horizontal sliding pin driving the conductive column to move downwards can be improved.
Preferably, an insulating partition plate is arranged in the insulating cylinder, and the two wiring through holes are distributed on two sides of the insulating partition plate. The power line can be prevented from being conducted without being pressed by the conductive column after being inserted into the insulating sleeve. Erroneous judgment can be avoided.
Preferably, the upper end face of the steel internal thread sleeve is provided with a wiring groove which penetrates through the peripheral face of the steel internal thread sleeve and is in butt joint with the wiring through hole, and the steel connecting cylinder is inserted into the connecting steel sleeve and then is filled with bonding slurry through the wiring groove. After the detection is finished, the power line is pulled out, so that the wiring groove is used as a material injection hole for injecting materials into the connecting sleeve. After the cement slurry is solidified, the components (steel connecting cylinder and steel barb) positioned in the connecting steel sleeve are fixed together with the connecting steel sleeve, so that the stability and reliability of connection can be improved.
Preferably, be equipped with on the global of steel chuck along the annular groove of dodging of steel chuck circumference extension, horizontal slide hole sets up the inslot is dodged to the annular, the outer end of horizontal sliding pin is equipped with and can contracts the annular dodges the inslot along the arc pressurized section of steel chuck circumference extension. During assembly, the steel barb extrudes the arc-shaped compression section to drive the horizontal sliding pin. The reliability of the horizontal sliding pin extruded by the steel barb in the assembling process can be improved.
Preferably, the peripheral surface of the conductive column is provided with a bolt hole, the hole wall of the vertical sliding hole is provided with a counter bore, and a bolt ejection spring for driving the bolt to move outwards are arranged in the counter bore; when the steel chuck moves upwards and the steel barb is pressed to the horizontal sliding pin in the process of passing through the steel barb, the horizontal sliding pin drives the conductive column to move downwards, and the plug pin is inserted into the plug pin hole when the conductive column moves downwards to the limit position. This technical scheme makes when the steel chuck crosses the steel barb, though lead electrical pillar and not receive the extrusion but still can keep pressing and keep reliable switch-on between pilot lamp and the power when two power cords and make the pilot lamp continuously luminous to avoid the pilot lamp to give out light and lead to judging inconveniently for only the steel chuck crosses the short period of barb.
Preferably, a barb part guide surface for guiding the steel barb to move outwards along the radial direction of the connecting steel sleeve when the steel chuck is inserted between the steel barbs is arranged between the lower end surface of the steel barb and the side surface far away from the bottom surface of the inclined bottom sliding chute. The steel barbs can be reliably driven apart during insertion.
Preferably, the lower end of the inclined bottom chute is of a closed structure, and the upper end of the inclined bottom chute is of an open structure. During the assembly, the clamping block is inserted from the open end of the inclined bottom sliding groove, so that the steel barb is convenient to install. The steel barb is connected with the steel sleeve after being assembled and then is connected to the upper steel thread head through threads. Not only is the steel barb assembled conveniently, but also the steel barb can not fall off.
Preferably, the upper end of the connecting steel sleeve is provided with a large-diameter section, the inner surface of the large-diameter section is provided with threads, and the connecting steel sleeve is in threaded connection with the upper steel thread head through the threads. The strength of the connecting steel sleeve can be improved.
Preferably, the steel barb is provided with a blocking section which is positioned at the periphery of the barb downward moving spring. The steel barb can be prevented from being excessively folded by the barb downward moving spring so as to cause the steel barb to be separated from the connecting steel sleeve before assembling.
The invention has the following beneficial effects: the prefabrication manufacturing of the bridge pier is realized, so that the construction period of the viaduct can be shortened; the structural strength of the joint can be designed to meet the high-strength connection requirement; it can be known whether the steel barb is hooked up.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a plugging structure;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic cross-sectional view B-B of FIG. 2;
fig. 5 is a partial schematic view of the plugging structure in the second embodiment.
In the figure: the bridge pier comprises a bridge pier 1, a bridge deck 2, a subsection 3, a ground 4, a splicing structure 5, a lower steel threaded head 6, an upper steel threaded head 7, a steel internal thread sleeve 8, a steel connecting cylinder 9, a connecting steel sleeve 10, a steel chuck 11, a clamping ring groove 12, an inclined bottom sliding groove 13, a bottom wall 14 of the inclined bottom sliding groove, a steel barb 15, a barb part guide surface 16, a large diameter section 17, a lower end 18 of the inclined bottom sliding groove, a barb downward moving spring 19, a blocking section 20, a vertical sliding hole 21, an insulating cylinder 22, a conductive post 23, a horizontal sliding hole 24, a horizontal sliding pin 25, a wiring through hole 40, a conical head 26, a connecting post reversing surface 41, an insulating partition plate 27, a wiring groove 28, an annular avoiding groove 29, an arc-shaped section 30, a plug hole 31, a plug 32, a plug ejecting spring 33, an insulating skin 34, a power line 35, an exposed section 42, an exhaust hole 36, an upper lifting spring 37, a core wire 38 and a bottommost subsection 39.
Detailed Description
The invention is further described with reference to the following figures and examples.
First embodiment, referring to fig. 1 to 4, a prefabricated splicing type bridge pier comprises a plurality of bridge piers 1 and bridge plates 2 supported on the bridge piers. The pier comprises segments 3 distributed in the vertical direction. The lowermost section 39 is a reinforced concrete structure cast in situ on the ground 4, and the remaining sections are prefabricated elements of a reinforced concrete structure. The adjacent segments are connected together by a plurality of plug structures 5. The splicing structure comprises a plurality of lower steel thread heads 6 cast on the upper end surface of the section positioned below and a plurality of upper steel thread heads 7 cast on the lower end surface of the section positioned above, and the lower steel thread heads are in threaded connection in a steel internal thread sleeve 8. And a steel connecting cylinder 9 is arranged on the upper end face of the steel internal thread sleeve. The upper steel thread head is in threaded connection with a connecting steel sleeve 10. The upper end of the connecting steel sleeve is provided with a large-diameter section 17, the inner surface of the large-diameter section is provided with threads, and the connecting steel sleeve is connected with the upper steel thread head through the threads. The first steel connecting cylinder penetrates through the connecting steel sleeve. The steel connecting cylinder is provided with a steel chuck 11. A clamping ring groove 12 extending along the circumferential direction of the steel connecting cylinder is formed between the steel chuck and the steel connecting cylinder. The inner peripheral surface of the connecting steel sleeve is provided with a plurality of inclined bottom chutes 13 axially extending along the circumferential direction of the connecting steel sleeve. The bottom wall 14 of the inclined bottom chute is inclined in the direction in which the upper end is drawn toward the outer peripheral surface of the connecting steel sleeve. The lower end 18 of the chute is closed and the upper end is open. And a steel barb 15 is connected in the inclined bottom chute in a sliding way. And a barb part guide surface 16 which guides the steel barb to move outwards along the radial direction of the connecting steel sleeve when the steel chuck is inserted between the steel barbs is arranged between the lower end surface of the steel barb and the side surface of one side far away from the bottom surface of the inclined bottom sliding chute. And a barb downward moving spring 19 for driving all the steel barbs to slide downward is arranged in the connecting steel sleeve. The steel barb is provided with a catch section 20 located on the periphery of the barb displacing spring downward. The steel barb hooks in the clamping ring groove.
The invention is also provided with a hooking in-place detection mechanism for detecting whether the steel barb is hooked into the clamping ring groove. The hooking in-place detection mechanism comprises a vertical sliding hole 21 which is arranged in the steel connecting cylinder and extends into the steel disc, an insulating cylinder 22 which is positioned at the lower end of the vertical sliding hole and has an opening at the upper end, a conductive column 23 which is connected in the vertical sliding hole in a sliding manner, a plurality of horizontal sliding holes 24 which are distributed along the circumferential direction of the steel disc and extend radially and are communicated with the vertical sliding hole in the steel disc, a horizontal sliding pin 25 which is arranged in the horizontal sliding hole in a penetrating manner, and two wiring through holes 40 which penetrate through the insulating cylinder. The conductive column is provided with a conical head 26 which is made of a permanent magnet, and the conical head is adsorbed on the horizontal sliding pin so that the conductive column is suspended in the vertical sliding hole and keeps contact with the horizontal sliding pin. The circumferential surface of the cone head constitutes a column part commutation surface 41 which converts horizontal movement into vertical movement. An insulating partition plate 27 is arranged in the insulating cylinder. Two wiring through holes are distributed on two sides of the insulating partition plate. And a wiring groove 28 which runs through the peripheral surface of the steel internal thread sleeve and is connected with the wiring through hole is arranged on the upper end surface of the steel internal thread sleeve, and a steel connecting cylinder is inserted into the connecting steel sleeve and then is filled with bonding slurry through the wiring groove. The circumferential surface of the steel chuck is provided with an annular avoidance groove 29 extending along the circumferential direction of the steel chuck. The horizontal sliding hole is arranged in the annular avoidance groove. The outer end of the horizontal sliding pin is provided with an arc-shaped pressed section 30 which can be contracted into the annular avoidance groove and extends along the circumferential direction of the steel chuck. The peripheral surface of the conductive column is provided with a pin hole 31. The hole wall of the vertical sliding hole is provided with a counter bore. A bolt 32 and a bolt ejection spring 33 for driving the bolt to move outwards are arranged in the counter bore.
In the assembling process: the insulating skin of the end parts of the two power lines 35 with the insulating skin 34 is stripped to enable the core lines 38 to form a section of exposed section 42, the two power lines are inserted into the two wiring through holes in a one-to-one correspondence mode until the exposed sections of the core lines are all located on the insulating cylinder, one pin of the indicator lamp is connected with the same power line, the other pin of the indicator lamp is connected with one end of the power supply, and the other end of the power supply is connected with the other power line. Then the upper section is moved downwards to enable the connecting steel sleeve to be sleeved on the steel connecting cylinder, if the steel barb is hooked into the clamping ring groove, the steel clamping disc can pass by the steel barb, the steel barb is extruded to the arc-shaped pressed section of the horizontal sliding pin in the passing process to enable the horizontal sliding pin to shrink towards the inside of the steel clamping disc, the horizontal sliding pin drives the conductive column to move downwards to press the exposed sections 42 of the core wires of the two power lines, so that the indicator lamp is communicated with the power supply, at the moment, the conductive column moves downwards to the limit position, the pin is inserted into the pin hole, the conductive column cannot move upwards, and the indicator lamp is bright. That is, the indicator light is on to indicate that the assembly is in place, and if the indicator light is not on, the assembly is not in place. After the power line is assembled, the power line is pulled out, bonding slurry such as cement slurry is injected into the connecting steel sleeve through the wiring groove, and in order to improve the smoothness of grouting, an exhaust hole 36 which is positioned above the steel chuck and below the upper steel thread head is arranged on the connecting steel sleeve. And after the cement paste is cured, fixing the steel connecting cylinder and the steel barb together with the connecting steel sleeve.
The second embodiment is different from the first embodiment in that:
the mode of keeping the conductive column in contact with the horizontal sliding pin is as follows: an uplifting spring 37 supported on the lower end face of the conductive column is arranged in the vertical sliding hole, the lower end of the uplifting spring is supported on the insulating sleeve, and the uplifting spring enables the conductive column to be in contact with the horizontal sliding pin.
Claims (9)
1. A prefabricated spliced viaduct of pier capable of shortening construction period comprises a plurality of piers and bridge plates supported on the piers, and is characterized in that the piers comprise subsections distributed along the upper and lower directions, adjacent subsections are connected together through a plurality of splicing structures, each splicing structure comprises a lower steel thread head poured on the upper end face of the subsection positioned below and an upper steel thread head poured on the lower end face of the subsection positioned above, the lower steel thread heads are in threaded connection in a steel internal thread sleeve, a steel connecting cylinder is arranged on the upper end face of the steel internal thread sleeve, a connecting steel sleeve is in threaded connection on each upper steel thread head, the steel connecting cylinder is arranged in the connecting steel sleeve in a penetrating manner, a steel chuck is arranged on each steel connecting cylinder, a clamping ring groove extending along the circumferential direction of the steel connecting cylinder is formed between each steel chuck and the corresponding steel connecting cylinder, the inner circumferential surface of the connecting steel sleeve is provided with a plurality of inclined bottom chutes axially extending along the circumferential direction of the connecting steel sleeve, the upper ends of the bottom walls of the inclined bottom chutes incline towards the direction of closing the outer circumferential surface of the connecting steel sleeve, steel barbs are connected in the inclined bottom chutes in a sliding manner, barb downward moving springs for driving all the steel barbs to slide downward are arranged in the connecting steel sleeve, and the steel barbs are hooked in the clamping ring grooves; the bridge pier prefabricated splicing viaduct is also provided with a hooking in-place detection mechanism for detecting whether the steel barbs are hooked into the clamping ring grooves or not, wherein the hooking in-place detection mechanism comprises vertical sliding holes which are arranged in the steel connecting cylinders and extend into the steel disc, an insulating cylinder which is positioned at the lower end of each vertical sliding hole and is provided with an opening at the upper end, conductive columns which are connected into the vertical sliding holes in a sliding manner, a plurality of horizontal sliding holes which are distributed along the circumferential direction of the steel disc and extend in the radial direction and are communicated with the vertical sliding holes, horizontal sliding pins which penetrate through the horizontal sliding holes and two wiring through holes which penetrate through the insulating cylinder; an upward lifting spring supported on the lower end face of the conductive column is arranged in the vertical sliding hole, the lower end of the upward lifting spring is supported on the insulating sleeve, and the upward lifting spring enables the conductive column to be in contact with the horizontal sliding pin.
2. The bridge pier prefabricated spliced viaduct capable of shortening the construction period as claimed in claim 1, wherein a connection column part reversing surface for converting horizontal movement into vertical movement is provided between the upper end of the conductive column and the inner end of the horizontal sliding pin.
3. The bridge pier prefabricated splicing viaduct capable of shortening the construction period of claim 1, wherein an insulating partition plate is arranged in the insulating cylinder, and the two wiring through holes are distributed on two sides of the insulating partition plate.
4. The bridge pier prefabrication and splicing viaduct capable of shortening the construction period according to claim 1, wherein a wiring groove which penetrates through the outer peripheral surface of the steel internal thread bushing and is butted with the wiring through hole is formed in the upper end surface of the steel internal thread bushing, and after a steel connecting cylinder is inserted into a connecting steel bushing, bonding slurry is injected into the connecting steel bushing through the wiring groove and is filled in the connecting steel bushing.
5. The bridge pier prefabrication and splicing type viaduct capable of shortening the construction period according to claim 1, wherein an annular avoiding groove extending along the circumferential direction of the steel chuck is formed in the circumferential surface of the steel chuck, the horizontal sliding hole is formed in the annular avoiding groove, and an arc-shaped pressed section capable of being contracted into the annular avoiding groove and extending along the circumferential direction of the steel chuck is formed in the outer end of the horizontal sliding pin.
6. The bridge pier prefabricated and spliced viaduct capable of shortening the construction period as claimed in claim 1, wherein bolt holes are formed in the circumferential surface of the conductive column, counter bores are formed in the wall of the vertical sliding hole, and bolts and bolt ejection springs for driving the bolts to move outwards are arranged in the counter bores; when the steel chuck moves upwards and the steel barb is pressed to the horizontal sliding pin in the process of passing through the steel barb, the horizontal sliding pin drives the conductive column to move downwards, and the plug pin is inserted into the plug pin hole when the conductive column moves downwards to the limit position.
7. The bridge pier prefabricated spliced viaduct capable of shortening the construction period as claimed in claim 1, wherein a barb guide surface for guiding the steel barb to move outward in the radial direction of the connecting steel bushing when the steel chuck is inserted between the steel barbs is provided between the lower end surface of the steel barb and the side surface of the side far away from the bottom surface of the inclined bottom chute.
8. The bridge pier prefabricated spliced viaduct capable of shortening the construction period of claim 1, wherein the inclined bottom chutes are closed at the lower ends and open at the upper ends.
9. The bridge pier prefabricated splicing viaduct capable of shortening the construction period of claim 1, wherein the steel barb is provided with a blocking section located at the periphery of a barb downward-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110765592.6A CN113481813A (en) | 2020-07-07 | 2020-07-07 | Pier prefabricated splicing type viaduct capable of shortening construction period |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110765592.6A CN113481813A (en) | 2020-07-07 | 2020-07-07 | Pier prefabricated splicing type viaduct capable of shortening construction period |
| CN202010644013.8A CN111676796B (en) | 2020-07-07 | 2020-07-07 | Prefabricated spliced viaduct for pier |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010644013.8A Division CN111676796B (en) | 2020-07-07 | 2020-07-07 | Prefabricated spliced viaduct for pier |
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| CN113481813A true CN113481813A (en) | 2021-10-08 |
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| CN202010644013.8A Active CN111676796B (en) | 2020-07-07 | 2020-07-07 | Prefabricated spliced viaduct for pier |
| CN202110765592.6A Withdrawn CN113481813A (en) | 2020-07-07 | 2020-07-07 | Pier prefabricated splicing type viaduct capable of shortening construction period |
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| CN202010644013.8A Active CN111676796B (en) | 2020-07-07 | 2020-07-07 | Prefabricated spliced viaduct for pier |
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| CN112813793B (en) * | 2020-12-31 | 2022-10-14 | 中际城市建设有限公司 | Assembled bridge |
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| CN207776107U (en) * | 2017-12-13 | 2018-08-28 | 江西华厦钢结构建筑工程有限公司 | A kind of dismountable steel structure |
| CN108560544B (en) * | 2018-06-22 | 2024-01-26 | 湘潭大学 | Sleeve connection assembled pile foundation and construction method thereof |
| CN108867634B (en) * | 2018-06-26 | 2023-05-05 | 中交第二航务工程局有限公司 | Combined pile foundation structure suitable for coral reef geology and construction method thereof |
| CN208965396U (en) * | 2018-08-16 | 2019-06-11 | 福建工程学院 | A kind of connector uses the spigot-and-socket construction precast assembly bridge pier of grout sleeve |
| CN210090357U (en) * | 2018-12-25 | 2020-02-18 | 中冶建筑研究总院有限公司 | Device for detecting plumpness of grouting material in precast concrete member |
| CN110158588A (en) * | 2018-12-29 | 2019-08-23 | 中国科学院武汉岩土力学研究所 | Tilted keyed anchor cable, to the method for anchor hole slip casting |
| CN210262681U (en) * | 2019-07-08 | 2020-04-07 | 中铁二院工程集团有限责任公司 | Self-locking type steel bar connecting structure, integral grouting sleeve and assembled pier stud |
-
2020
- 2020-07-07 CN CN202010644013.8A patent/CN111676796B/en active Active
- 2020-07-07 CN CN202110765592.6A patent/CN113481813A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN111676796B (en) | 2022-03-11 |
| CN111676796A (en) | 2020-09-18 |
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