CN218373339U

CN218373339U - Quick assembling and positioning assembly for double-column pier in assembled bridge

Info

Publication number: CN218373339U
Application number: CN202221811676.5U
Authority: CN
Inventors: 薛海巍; 曹涛; 张宁军; 张超; 崔艳宾; 王建锋; 侯光耀; 张智勇; 耿忠坤; 闫国庆
Original assignee: China Railway No 3 Engineering Group Co Ltd; Second Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd
Current assignee: China Railway No 3 Engineering Group Co Ltd; Second Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2023-01-24
Anticipated expiration: 2032-07-14

Abstract

The utility model belongs to the technical field of bridge construction, in particular to a quick assembling and positioning assembly for a double-column pier in an assembled bridge; the device comprises a pier stud limiting frame arranged between two reserved grooves on the top surface of a cast-in-place cushion cap, wherein two pier body limiting parts are arranged on the pier stud limiting frame, the two pier body limiting parts are respectively aligned with a virtual pier body contour line in one reserved groove, corresponding positioning auxiliary lines are arranged on the cast-in-place cushion cap and the pier stud, and a concave-convex matching structure is arranged between the bottom of the reserved groove of the cast-in-place cushion cap and the bottom of the pier stud; the steel bar positioning fixture is provided with an insertion hole which is matched with the hole position on the prefabricated pier cap; through assembling several kinds of auxiliary device that the in-process set up at pier stud, pier cap, realized in the assembled bridge of high-speed railway pier stud, pier cap on-the-spot "millimeter level" assemble fast, guaranteed the accurate counterpoint of assembling the in-process, improved the efficiency of construction.

Description

Quick assembling and positioning assembly for double-column pier in assembled bridge

Technical Field

The utility model belongs to the technical field of the bridge construction, concretely relates to quick makeup locating component of double-column pier in assembled bridge.

Background

The bridge construction and development in China are rapid, the mechanization degree of the upper structure construction is high, a green construction process of 'beam yard centralized prefabrication and bridge girder erection machine erection' is adopted, lower structures such as pile foundations, bearing platforms and piers are constructed mainly by on-site concrete pouring, a series of problems such as large resource consumption, serious environmental pollution, large construction noise, large solid quality diseases and the like are caused in the construction, therefore, the industrial construction of bridges is a necessary trend of bridge development, the bridge set prefabrication and splicing construction technology is applied under the large background that 'green water green hills are Jinshan Yinshan', the prefabricated assembled bridges have the advantages of component production standard, rapid and convenient field installation, energy conservation and environmental protection in construction, the influence on the atmospheric environment and traffic roads can be reduced, the quality and safety quality are improved, the civilized construction level is reduced, and the development trend of the bridge industry in China is realized. The accurate positioning process of the pier stud and the pier cap in the assembled bridge is a key technology of assembly work, and how to ensure the quick and accurate positioning of the pier stud and the bearing platform and the pier cap and the pier stud and realize the quick assembly of the pier stud and the pier cap; the construction process of the assembled bridge is more mature, and a construction method for quickly assembling pier columns and pier caps in the assembled bridge of the high-speed railway needs to be researched urgently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be applied to pier stud, the quick subassembly of assembling the construction usefulness of pier cap in the assembled bridge of high-speed railway for solve the assembled bridge and assemble the construction difficult problem of the quick accurate location of pier stud, pier cap in the construction.

In order to achieve the above object, the utility model adopts the following technical scheme: a double-column pier rapid splicing positioning assembly in an assembly type bridge comprises a pier stud limiting frame arranged between two reserved grooves on the top surface of a cast-in-place cushion cap, wherein two pier body limiting parts are arranged on the pier stud limiting frame, the two pier body limiting parts are respectively aligned with a virtual pier body contour line in one reserved groove, corresponding positioning auxiliary lines are arranged on the cast-in-place cushion cap and the pier stud, and a concave-convex matching structure is arranged between the bottom of the reserved groove of the cast-in-place cushion cap and the bottom of the pier stud; the prefabricated pier cap structure further comprises a steel bar positioning fixture, and the steel bar positioning fixture is provided with an insertion hole which is matched with the hole position on the prefabricated pier cap.

Furthermore, a conical positioning device is arranged at the bottom of the reserved groove of the cast-in-place bearing platform, and conical grooves corresponding to the conical positioning devices one to one are formed in the column bottom of the pier column.

Furthermore, an anchor bolt hole with the diameter of 16cm and the depth of 20cm is reserved at the bottom of the cast-in-place bearing platform, and the conical positioning device is fixed with concrete through an expansion bolt.

Furthermore, four positioning auxiliary lines which are vertical to the cross section and are in cross distribution are drawn on the pier body of the pier column; the top surface of the cast-in-place cushion cap is provided with a cross positioning auxiliary line passing through the center of the preformed groove, and the pier stud is aligned with the positioning auxiliary line on the cast-in-place cushion cap.

Furthermore, the pier stud limiting frame is provided with two concave surfaces matched with the pier body curved surface of the pier stud, and the concave surfaces are used as pier body limiting parts.

Furthermore, the pier stud limiting frame is fixed on the cast-in-place bearing platform through expansion bolts.

Furthermore, the steel bar positioning fixture comprises two discs which are connected into a whole through a support, the distance between the two discs is equal to the installation distance between the two pier studs, and the discs are provided with insertion holes which are matched with the hole positions on the prefabricated pier caps.

Compared with the prior art, the utility model has the advantages that:

the utility model provides a pair of locating component is assembled fast to double-column pier in assembled bridge has realized assembling fast at pier stud, pier cap "millimeter level" in-situ and has assembled in the assembled bridge of high-speed railway through assembling several kinds of auxiliary device that the in-process set up at pier stud, pier cap, has guaranteed to assemble the accurate counterpoint of in-process, has improved the efficiency of construction. To sum up, the utility model provides an in-process accurate counterpoint difficulty is assembled to pier stud, pier cap in the assembled bridge of high-speed railway, the low scheduling problem of efficiency of construction has also accelerated the construction progress simultaneously, has guaranteed construction quality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the location of the conical locator.

Fig. 3 is a schematic structural view of a cone-shaped positioning device.

Fig. 4 is a schematic position diagram of the pier stud limiting frame.

Fig. 5 is a schematic structural view of the steel bar positioning fixture.

In the figure: 1-casting a bearing platform in situ; 2-pier studs; 3, prefabricating a pier cap; 4-pier stud spacing rack; 5-positioning the auxiliary line; 6-a steel bar positioning clamp; 7-conical positioning means.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

As shown in fig. 1-5: a double-column pier rapid splicing positioning assembly in an assembly type bridge comprises a pier stud limiting frame 4 arranged between two reserved grooves on the top surface of a cast-in-place cushion cap 1, wherein two pier body limiting parts are arranged on the pier stud limiting frame 4, the two pier body limiting parts are respectively aligned with a virtual pier body contour line in one reserved groove, corresponding positioning auxiliary lines 5 are arranged on the cast-in-place cushion cap 1 and a pier stud 2, and a concave-convex matching structure is arranged between the bottom of the reserved groove of the cast-in-place cushion cap 1 and the bottom of the pier stud 2; still include rod iron location fixture 6, set up the jack that accords with the hole site on the prefabricated pier cap 3 on the rod iron location fixture 6, preceding pier stud installation is accomplished, uses rod iron location fixture 6 to adjust a back pier stud at the pier top behind the latter pier stud hole, through rod iron location fixture 6 inspection pier top rod steel align with the punchhole of prefabricated pier cap 3, so after finishing adjusting, prefabricated pier cap 3 can be accurately connected with the pier stud.

As shown in fig. 2 and 3: the bottom of the preformed groove of the cast-in-place bearing platform 1 is provided with a conical positioning device 7, and the bottom of the pier column 2 is provided with conical grooves corresponding to the conical positioning device 7 one by one. During assembly, the conical positioning device 7 is tightly attached to the conical groove, so that the position of the double-column pier stud is quickly positioned.

An anchor bolt hole with the diameter of 16cm and the depth of 20cm is reserved at the bottom of the cast-in-place bearing platform 1 and used for installing a conical positioning device 7, the conical positioning device 7 is temporarily fixed through an expansion bolt, C50 support grouting material is poured to fix the conical positioning device 7 after the elevation and the plane position of the conical positioning device 7 are correct, and the exposed part of the expansion bolt and a nut are cut off before the pier column is installed.

Four positioning auxiliary lines 5 which are vertical to the cross section and are in cross distribution are drawn on the pier body of the pier column 2; a cross positioning auxiliary line 5 passing through the center of the reserved groove is drawn on the top surface of the cast-in-place bearing platform 1; the pier stud 2 is aligned with the positioning auxiliary line 5 on the cast-in-place bearing platform 1. During assembly, the pier stud is rotated to be overlapped with the auxiliary cross line on the top surface of the cast-in-place bearing platform, and then the pier stud is slowly lowered.

As shown in fig. 4: the pier stud limiting frame 4 is provided with two concave surfaces matched with the pier body curved surface of the pier stud 2, and the concave surfaces are used as pier body limiting parts. The pier stud limiting frame 4 is fixed on the cast-in-place bearing platform 1 through expansion bolts.

As shown in fig. 5: the steel bar positioning fixture 6 comprises two discs which are connected into a whole through a support, the distance between the two discs is equal to the installation distance between the two pier studs 2, and the discs are provided with insertion holes which are matched with the hole positions on the prefabricated pier caps 3. Use pier stud rod iron location fixture 6, the relative position of two pier studs of accurate positioning guarantees that the pre-buried rod iron of pier stud can pass prefabricated pier stud cap 3 smoothly when prefabricated pier stud cap 3 installs.

A construction method for quickly assembling pier columns and pier caps in an assembled bridge of a high-speed railway comprises the following steps:

1) When the bearing platform is poured, the anchor bolt hole for mounting the conical positioning device is reserved at the bottom of the reserved groove.

2) And (4) lofting out the auxiliary positioning cross line on the pier stud, the pier cap and the on-site bearing platform top cap.

3) Installing a conical positioning device and installing a limiting frame on the pier stud.

4) And (4) installing the double-column pier stud, carrying out slurry sitting treatment, and checking by using a steel bar positioning clamp.

5) And (5) installing pier caps, carrying out mortar setting treatment, and binding reinforcing steel bars to pour post-cast strip concrete.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a quick concatenation locating component of double column pier in assembled bridge, its characterized in that: the cast-in-place pile structure comprises a pier stud limiting frame (4) arranged between two preformed grooves on the top surface of a cast-in-place cushion cap (1), wherein two pier body limiting parts are arranged on the pier stud limiting frame (4), the two pier body limiting parts are respectively aligned with a virtual pier body contour line in one preformed groove, corresponding positioning auxiliary lines (5) are arranged on the cast-in-place cushion cap (1) and the pier stud (2), and a concave-convex matching structure is arranged between the bottom of the preformed groove of the cast-in-place cushion cap (1) and the bottom of the pier stud (2); the prefabricated pier cap structure is characterized by further comprising a steel bar positioning fixture (6), wherein the steel bar positioning fixture (6) is provided with an insertion hole which is matched with the hole position on the prefabricated pier cap (3).

2. The rapid assembling and positioning assembly for the double-column pier in the assembled bridge according to claim 1, wherein: the bottom of the preformed groove of the cast-in-place bearing platform (1) is provided with a conical positioning device (7), and the bottom of the pier column (2) is provided with conical grooves corresponding to the conical positioning device (7) one by one.

3. The rapid assembling and positioning assembly for the double-column pier in the assembled bridge according to claim 2, wherein: an anchor bolt hole with the diameter of 16cm and the depth of 20cm is reserved at the bottom of the cast-in-place bearing platform (1), and the conical positioning device (7) is fixed with concrete through an expansion bolt.

4. The rapid assembling and positioning assembly for the double-column pier in the assembled bridge according to claim 1, wherein: four positioning auxiliary lines (5) which are vertical to the cross section and are distributed in a cross shape are drawn on the pier body of the pier column (2); a cross positioning auxiliary line (5) passing through the center of the reserved groove is drawn on the top surface of the cast-in-place bearing platform (1); the pier stud (2) is aligned with the positioning auxiliary line (5) on the cast-in-place bearing platform (1).

5. The rapid assembling and positioning assembly for the double-column pier in the assembled bridge according to claim 1, characterized in that: the pier stud limiting frame (4) is provided with two concave surfaces matched with the pier body curved surface of the pier stud (2), and the concave surfaces are used as pier body limiting parts.

6. The rapid assembling and positioning assembly for the double-column pier in the assembled bridge according to claim 5, wherein: the pier stud limiting frame (4) is fixed on the cast-in-place bearing platform (1) through expansion bolts.

7. The rapid assembling and positioning assembly for the double-column pier in the assembled bridge according to claim 1, characterized in that: the steel bar positioning fixture (6) comprises two discs which are connected into a whole through a support, the distance between the two discs is equal to the installation distance between the two pier studs (2), and the discs are provided with insertion holes which are matched with hole positions on the prefabricated pier caps (3).