CN213571586U

CN213571586U - Prefabricated bent cap metal bellows positioning template of assembled

Info

Publication number: CN213571586U
Application number: CN202022370660.2U
Authority: CN
Inventors: 汪加青; 朱振业; 徐星火; 任豪; 方诗圣; 苟文杰; 房修桂; 张银银; 孙超飞
Original assignee: China Tiesiju Civil Engineering Group Co Ltd CTCE Group
Current assignee: China Tiesiju Civil Engineering Group Co Ltd CTCE Group
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-06-29
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses an assembled prefabricated bent cap metal bellows positioning template, which is characterized in that a circular groove is arranged on the upper surface of a bent cap bottom die; embedding a positioning disc in the circular groove to enable the upper surface of the positioning disc to be coplanar with the upper surface of the bottom die of the bent cap; vertical guide pipes are fixedly welded on the upper surface of the lower disc in a one-to-one correspondence mode according to the positions of the steel bars on the top surface of the pier stud, metal corrugated pipes are sleeved on the guide pipes, the metal corrugated pipes are embedded components in the bent cap, and the metal corrugated pipes form reserved positioning holes in the bent cap. The utility model discloses it is accurate effectively to have guaranteed that location reservation hole position in the prefabricated bent cap goes on smoothly to guarantee bent cap assembly construction, guarantees the engineering quality, improves the operating efficiency, avoids leading to the emergence of bent cap or pier stud condition of scrapping because of the dislocation.

Description

Prefabricated bent cap metal bellows positioning template of assembled

Technical Field

The utility model relates to an assembled bridge field, more specifically say so and relate to a prefabricated bent cap corrugated metal pipe locating template of assembled based on butt joint of round pier stud.

Background

The fully assembled bridge covering the lower structure becomes the development trend of current bridge construction, and the mechanized operation level can be obviously improved by prefabricating components such as pier studs, bent caps and the like in factories and performing assembly type construction on site, so that the construction progress is accelerated while the quality is improved. The improvement of the fully assembled bridge on the construction efficiency can simultaneously reduce the interference to the existing traffic and is beneficial to environmental protection.

In the assembly type construction of the highway bridge, the accuracy of the positioning preformed hole for anchoring the socket steel bars on the top surface of the pier stud in the bent cap directly influences whether the assembly process between the bent cap and the pier stud can be smoothly carried out or not, and whether the installation quality can be ensured or not.

Aiming at the assembly type construction of the circular double pier stud and the capping beam, firstly, the pier stud and the bearing platform need to be anchored, then the capping beam is installed at the top of the pier stud, and the steel bars on the top surface of the pier stud and the positioning reserved holes on the capping beam are anchored in a one-to-one correspondence mode; however, because the quantity of the steel bars on the top surface of the pier stud is large, the position relation of the steel bars and the positioning reserved holes in the bent cap in one-to-one correspondence is difficult to guarantee, if the steel bars are staggered, the bent cap is difficult to install, and the bent cap or the pier stud can be scrapped seriously.

SUMMERY OF THE UTILITY MODEL

The utility model provides an assembled prefabricated bent cap metal bellows positioning template in order to avoid the defects of the prior art; the position of the positioning reserved hole on the bent cap is accurate, and therefore smooth assembly and construction of the bent cap are guaranteed.

The utility model discloses a solve technical problem and adopt following technical scheme:

the utility model discloses prefabricated bent cap corrugated metal pipe locating template of assembled's structural feature is: a circular groove is formed in the upper surface of the bent cap bottom die; embedding a positioning disc in the circular groove to enable the upper surface of the positioning disc to be coplanar with the upper surface of the cover beam bottom die; and upright guide pipes are fixedly welded on the upper surface of the lower disc in a one-to-one correspondence manner according to the positions of the reinforcing steel bars on the top surface of the pier stud, metal corrugated pipes are sleeved on the guide pipes, the metal corrugated pipes are embedded components in the bent cap, and the metal corrugated pipes form reserved positioning holes in the bent cap.

The utility model discloses prefabricated bent cap corrugated metal pipe locating template of assembled's structural feature also lies in: the guide pipe is sleeved with an auxiliary steel pipe, and the metal corrugated pipe is sleeved on the auxiliary steel pipe.

The utility model discloses prefabricated bent cap corrugated metal pipe locating template of assembled's structural feature also lies in: and a pair of downward tenons are welded on the bottom surface of the positioning disc, mortises are formed on the inner surface of the bottom die of the bent cap at corresponding positions, and the tenons are embedded into the mortises at the corresponding positions to position the positioning disc in the bottom die of the bent cap.

Compared with the prior art, the utility model discloses beneficial effect embodies:

the utility model discloses effectively guaranteed that the location preformed hole position that is formed by the corrugated metal pipe in the bent cap is accurate, make the assembled construction between two circular pier stud and the bent cap can accurate location, dock smoothly to guarantee the engineering quality, improve the operating efficiency, avoid leading to the emergence of bent cap or pier stud condition of scrapping because of the dislocation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the front view of the positioning disc of the present invention;

FIG. 3 is a schematic side view of the positioning disc of the present invention;

FIG. 4 is a schematic view of the structure of the cap beam and the pier stud;

reference numbers in the figures: the device comprises a guide pipe 1, a positioning disc 2, a metal corrugated pipe 3, an auxiliary steel pipe 4, a capping beam 5, a tenon 6, a capping beam bottom die 7, a capping beam side die 8 and a pier stud 9.

Detailed Description

In the embodiment, the matching form of the capping beam 5 and the pier stud 9 shown in fig. 4 is aimed at, the capping beam 5 and the pier stud 9 are both prefabricated components, and the capping beam 5 is installed on the top of the pier stud 9.

Referring to fig. 1, 2 and 3, the prefabricated bent cap metal bellows positioning formwork in the present embodiment has the following structural form:

a circular groove is formed in the upper surface of the bent cap bottom die 7; embedding a positioning disc 2 in the circular groove to enable the upper surface of the positioning disc 2 to be coplanar with the upper surface of the bent cap bottom die 7; upright guide pipes 1 are fixedly welded on the upper surface of the lower disc 2 in a one-to-one correspondence mode according to the positions of the steel bars on the top surface of the pier stud, metal corrugated pipes 3 are sleeved on the guide pipes 1, the metal corrugated pipes 3 are embedded components in the bent cap 5, and the metal corrugated pipes 3 form reserved positioning holes in the bent cap 5.

In the concrete implementation, in order to enhance the rigidity, the guide pipe 1 is sleeved with the auxiliary steel pipe 4, the metal corrugated pipe 3 is sleeved on the auxiliary steel pipe 4, the auxiliary steel pipe 4 bears the acting force transmitted to the metal corrugated pipe 3 in the concrete pouring process, and the metal corrugated pipe 3 is guided and well protected.

In order to ensure that the positioning disc 2 and the cover beam bottom die 7 are accurately positioned and fixed, a pair of downward tenons 6 are welded on the bottom surface of the positioning disc 2, mortises are formed on the upper surface of the cover beam bottom die 7 at the corresponding positions, and the tenons 6 are embedded into the mortises at the corresponding positions to position the positioning disc 2 in the cover beam bottom die 7.

In the embodiment, 28 guide tubes 1 shown in FIG. 2 are used, and the guide tubes 1 are steel tubes with the height of 0.4m, the diameter phi of 50mm and the wall thickness of 3.0 mm; the thickness of the positioning disc 2 is 2 cm; a pair of tenons 6 are welded to the bottom plate of the positioning disk 2 at positions on the diameter of a circle of 140cm in diameter, one left to the right.

The top surface of the metal corrugated pipe 3 is slightly higher than that of the prefabricated cover beam, so that the auxiliary steel pipe cannot be taken out due to bonding between the auxiliary steel pipe and the corrugated pipe caused by concrete backflow; the auxiliary steel tube 4 and the positioning disc 2 can meet the requirement of normal use limit stress, and the stress limit is not less than the filler impact and the vibrating impact force in the cover beam concrete pouring process; after the pouring of the bent cap is completed, the bent cap needs to be cured for about 14 days, and when the curing is finished, the positioning disc welded with the guide pipe is taken out from the bottom of the bent cap and used for the repeated use of the prefabrication of the next bent cap, so that the resources can be saved.

Utilize the utility model discloses carry out precast work progress of bent cap:

1. and after the assembly of the cover beam jig frame is finished, re-measuring the precision of the cover beam bottom die 7 and the cover beam side die 8, cleaning surface stains, and brushing a release agent.

2. And a positioning disc 2 welded with a guide pipe is placed in the circular groove of the bent cap bottom die 7, and a tenon 6 at the bottom of the positioning disc 2 is embedded in a mortise on the bent cap bottom die 7, so that the positioning disc 2 is fixed.

3. The guide pipe 1 is sleeved with the auxiliary steel pipes 4, and the positions of the auxiliary steel pipes 4 are rechecked to ensure the position accuracy of the reserved positioning holes.

4. The metal corrugated pipe 3 is sleeved on the auxiliary steel pipe 4, so that the metal corrugated pipe 3 is tightly attached to the auxiliary steel pipe 4, and the corrugated pipe is prevented from deforming in the pouring process.

5. And hoisting the bent cap reinforcement cage, closing the die and pouring bent cap concrete, taking out the positioning disc with the guide pipe after the bent cap is lifted away from the bent cap bottom die after pouring is finished, and putting the next bent cap into prefabrication.

Claims

1. Prefabricated bent cap metal bellows positioning template of assembled, characterized by: a circular groove is formed in the upper surface of the bent cap bottom die (7); embedding a positioning disc (2) in the circular groove to enable the upper surface of the positioning disc (2) to be coplanar with the upper surface of the bent cap bottom die (7); the upper surface of the positioning disc (2) and the upright guide pipe (1) are fixedly welded according to the position of the pier top surface steel bar in a one-to-one correspondence mode, the guide pipe (1) is sleeved with the corrugated metal pipe (3), the corrugated metal pipe (3) is an embedded component in the bent cap (5), and the corrugated metal pipe (3) forms a reserved positioning hole in the bent cap (5).

2. The prefabricated capping beam metal bellows positioning template of claim 1, wherein: the guide pipe (1) is sleeved with an auxiliary steel pipe (4), and the metal corrugated pipe (3) is sleeved on the auxiliary steel pipe (4).

3. The prefabricated capping beam metal bellows positioning template of claim 1, wherein: the bottom surface of the positioning disc (2) is welded with a pair of downward tenons (6), mortises are formed on the inner surface of the bent cap bottom die (7) in the corresponding position, and the tenons (6) are embedded into the mortises in the corresponding position to enable the positioning disc (2) to be positioned in the bent cap bottom die (7).