CN219621621U

CN219621621U - Detachable is applicable to four lane of big cantilever and is protected a frame

Info

Publication number: CN219621621U
Application number: CN202321255055.8U
Authority: CN
Inventors: 杨伟; 张�浩; 范小虎; 景玉婷; 张小磊; 杜乾武; 李航; 岳盟; 曹景博; 鞠军令; 张丽丽; 潘铭
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-09-01
Anticipated expiration: 2033-05-23

Abstract

The utility model discloses a detachable security door frame suitable for a large cantilever four-lane, which comprises a stand column formed by connecting a plurality of stand column standard sections and a secondary distribution beam arranged at the upper end of the stand column, wherein the stand column standard sections are connected through flanges; a shear supporting mechanism is connected between the adjacent upright posts through anchor clamps; the secondary distribution beam is supported and connected with the main distribution beam through a steel member. The utility model not only has convenient disassembly and assembly, but also can be used for the construction of different erection condition door frames of other projects in the later period by connecting the upright post and the anchor ear with the shear supporting mechanism through the flange connection, thereby effectively improving the utilization efficiency of materials; through setting up stand standard festival, can prefabricate at the mill, on-the-spot flange bolted connection has practiced thrift car hoist and mount time and steel pipe extension welding time, has improved the installation work efficiency for the construction progress has also reduced the atmospheric pollution simultaneously.

Description

Detachable is applicable to four lane of big cantilever and is protected a frame

Technical Field

The utility model relates to the technical field of viaducts, in particular to a detachable guarantor portal frame suitable for a large cantilever four-lane.

Background

With the gradual perfection of urban infrastructure, the construction of urban viaduct beams is limited by buildings at present, so that more and more overhead forms are built on the original roads, and large cantilever capping beams are generated. The bent cap is commonly used to have a tray buckle bracket, a whole hoisting stiffness framework and other structures. However, the structures are not applicable or uneconomical to large cantilever bent cap and four-lane road sections. The mode of the traffic gate frame is favored for the road sections of large cantilever bent cap and four-lane traffic protection. However, the steel pipe bracket or the bailey piece portal frame commonly used for the security portal frame has a plurality of erection procedures, is troublesome to erect and can not be used in a turnover way, thereby increasing the cost and being not beneficial to standard construction.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a detachable safety door frame suitable for a large cantilever four-lane, which solves the problems that the safety door frame in the prior art is troublesome to erect and can not be used in a turnover way.

The technical scheme of the utility model is realized as follows:

a detachable security door frame suitable for a large cantilever four-lane comprises a stand column formed by connecting a plurality of stand column standard sections and a secondary distribution beam arranged at the upper end of the stand column, wherein the stand column standard sections are connected through flanges; a shear supporting mechanism is connected between the adjacent upright posts through anchor clamps; the secondary distribution beam is supported and connected with the main distribution beam through a steel member.

Further, a sand barrel is arranged between the upright post and the secondary distribution beam.

Further, a stand column standard joint positioned at the uppermost end of the stand column is connected with a stand column transition joint, and the stand column transition joint is connected with the sand barrel through a top flange.

Further, the top end flange is connected with the secondary distribution beam through an anti-overturning anchor rod.

Further, the steel member comprises a plurality of pairs of double-spliced I-steel.

Further, the shear supporting mechanism comprises steel pieces which are arranged in a crossing way, and the steel pieces which are arranged in the crossing way form an X-shaped structure; four ends of the X-shaped structure are respectively connected with hoops connected to the adjacent upright posts.

Further, the steel piece is double-spliced I-steel.

Further, the two ends of the main distribution beam are provided with protection rails.

Further, a cover beam bottom die supporting framework is arranged on the main distribution beam.

Further, the lower end of the upright post is provided with a prefabricated strip foundation.

The utility model has the beneficial effects that: the utility model not only has convenient disassembly and assembly, but also can be used for construction of different types of erection condition portal frames of other projects in the later period by connecting the upright post and the anchor ear with the shear supporting mechanism through the flange connection, thereby effectively improving the utilization efficiency of materials; the standard upright post joint is arranged, so that the standard upright post joint can be prefabricated in a factory and connected with a field flange through bolts, the automobile hoisting time and the steel pipe lengthening welding time are saved, the installation work efficiency is improved, the construction progress is accelerated, and the air pollution is reduced; the vertical column transition joint and the secondary distribution beam are fixed by adopting an anti-overturning anchor rod, so that the problem that the double-spliced I-steel is eccentric and not centered in the positioning process is effectively solved, and the stability of the port-protecting door frame is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

fig. 3 is a partial enlarged view of fig. 2.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, a detachable security door frame for a large cantilever four-lane according to embodiment 1 of the present utility model includes a plurality of upright posts and a secondary distribution beam 2 disposed at the upper ends of the upright posts. Wherein, the upright post is formed by connecting a plurality of upright post standard sections 1. And a plurality of upright post standard sections 1 are connected through flanges, so that the upright post can be conveniently disassembled and assembled for turnover. And shear supporting mechanisms are connected between the adjacent upright posts through anchor ears 9 to form shear-resistant supports between the upright posts. The secondary distribution beam 2 is supported by and connected to the primary distribution beam 4 via a steel member 3.

Further, as shown in fig. 2 and 3, a sand bucket 5 is further provided between the upright and the secondary distribution beam 2.

Specifically, as shown in fig. 3, the upper end of the upright post standard section 1 positioned at the uppermost end of the upright post is connected with an upright post transition section 6 through a flange, and the upper end of the upright post transition section 6 is connected with the sand barrel 5 through a top flange 7. The top end flange 7 comprises a pair of flanges which are connected through bolts and are arranged at the upper end of the column transition joint 6 and a flange arranged at the bottom of the sand barrel 5. As shown in fig. 3, the top flange 7 is connected to the chassis of the secondary distribution beam 2 via an anti-overturning anchor rod 8. The problem that the steel member 3 is eccentric and not centered in the positioning process is effectively solved, and the stability of the port-protecting door frame is greatly improved.

Further, as shown in fig. 2, the steel member 3 includes a plurality of pairs of double-spliced i-steels. And a plurality of pairs of double-spliced I-steel are arranged between the secondary distribution beam 2 and the main distribution beam 4 at intervals side by side and used for supporting the main distribution beam 4.

Further, as shown in fig. 1, the main distribution beam 4 is provided with guard rails 12 at both ends.

Further, a cover beam bottom die supporting framework 11 is arranged on the main distribution beam 4 and used for supporting a cover beam bottom die. The cover beam bottom die supporting framework 11 is formed by customizing in advance, so that the construction speed on site can be increased, and the cover beam bottom die supporting framework is convenient to disassemble, assemble and recycle.

Further, the lower end of the upright post is provided with a prefabricated strip foundation 13.

Embodiment 2 differs from embodiment 1 in that, as shown in fig. 2, the shear supporting mechanism includes steel members 10 disposed in a crossing manner, and the steel members 10 disposed in a crossing manner form an "X" structure; four ends of the X-shaped structure are respectively connected with anchor ears 9 connected with adjacent upright posts. Wherein, the steel member 10 is double-spliced I-steel. The mode that staple bolt 9 connects shear force supporting mechanism and stand is convenient for the dismouting and the turnover of this portal use.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A detachable guarantor's portal that is applicable to four lanes of big cantilever, its characterized in that: the device comprises a stand column formed by connecting a plurality of stand column standard sections (1) and a secondary distribution beam (2) arranged at the upper end of the stand column, wherein the stand column standard sections (1) are connected through flanges; a shear supporting mechanism is connected between the adjacent upright posts through anchor bolts (9); the secondary distribution beam (2) is supported and connected with a main distribution beam (4) through a steel member (3).

2. The detachable guarantor portal suitable for large cantilever four lanes of claim 1, wherein: and a sand barrel (5) is arranged between the upright post and the secondary distribution beam (2).

3. The detachable guarantor portal adapted for large cantilever four lanes of claim 2, wherein: the upright post standard joint (1) positioned at the uppermost end of the upright post is connected with an upright post transition joint (6), and the upright post transition joint (6) is connected with the sand barrel (5) through a top end flange (7).

4. A detachable guarantor portal adapted for large cantilever four lanes according to claim 3, characterized in that: the top end flange (7) is connected with the secondary distribution beam (2) through an anti-overturning anchor rod (8).

5. The detachable guarantor's portal suitable for big cantilever four lanes of any one of claims 1-4, characterized in that: the steel member (3) comprises a plurality of pairs of double-spliced I-steel.

6. The detachable guarantor's portal suitable for big cantilever four lanes of any one of claims 1-4, characterized in that: the shearing force supporting mechanism comprises steel pieces (10) which are arranged in a crossing way, and the steel pieces (10) which are arranged in the crossing way form an X-shaped structure; four ends of the X-shaped structure are respectively connected with anchor clamps (9) connected with adjacent upright posts.

7. The detachable guarantor portal adapted for large cantilever four lanes of claim 6, wherein: the steel piece (10) is double-spliced I-steel.

8. The detachable guarantor portal suitable for large cantilever four lanes according to any one of claims 1-4 or 7, characterized in that: and the two ends of the main distribution beam (4) are provided with protective rails (12).

9. The detachable guarantor portal adapted for large cantilever four lanes of claim 8, wherein: and a cover beam bottom die supporting framework (11) is arranged on the main distribution beam (4).

10. The detachable guarantor portal suitable for large cantilever four lanes according to any one of claims 1-4 or 7 or 9, characterized in that: the lower end of the upright post is provided with a prefabricated strip foundation (13).