CN103266568B - A kind of movable platform of anti-collision wall construction - Google Patents

Abstract

The invention discloses a movable platform for anti-collision wall construction, which includes a rectangular parallelepiped frame body, four rollers are installed on the bottom of the frame body, and two extension arms are installed on one top long side of the frame body. A plurality of suspension rings are arranged on the extension arm, and a counterweight plate is also arranged on the frame body, and the counterweight plate and the extension arm are distributed diagonally. The invention can move the frame body through the rolling action of the rollers, thereby realizing the movement of the hanging basket and realizing the mobile operation platform, without building a large-scale scaffold at the bottom of the viaduct, thereby shortening the construction period and reducing the construction cost.

Description

A movable platform for anti-collision wall construction

technical field

The invention relates to an auxiliary tool for bridge construction, in particular to a movable platform for anti-collision wall construction. the

Background technique

Anti-collision walls, that is, the wall parts on both sides of roads and railways in civil engineering, are mostly used for viaducts, aerial highways, elevated railways, etc. As the safety guarantee structure on both sides of the bridge, it is the same as the anti-collision guardrail. However, the difference between the anti-collision wall and the anti-collision guardrail is also large. The anti-collision wall is a permanent structure, which is formed by reinforced concrete and fixed on both sides of the box girder of the viaduct or high-speed rail. It is part of the bridge, and The anti-collision barrier is installed on the embedded parts. Compared with the overall weight of the anti-collision wall, the anti-collision barrier is made of steel or stainless steel. It is light in weight and has low impact resistance. It is mostly used on two sides of ordinary roads side.

The anti-collision wall of the current viaduct or overpass is made according to the following procedures: build an external scaffold to form a working platform on the outside of the bridge; remove the concrete on the edge of the bridge to expose the steel bars; carry out the anti-collision wall reinforcement work on the steel bars; Formwork on scaffolding; concrete pouring; formwork removal; removal of scaffolding. This construction method is a traditional construction method. Its inconvenience is that it takes a lot of time and energy to build and dismantle the scaffolding. Not only the construction period is long, but the cost is also high. For this reason, there is also a method of using a lift as an operating platform. The disadvantage of this method is that the movement of the elevator depends on the movement of the trolley at its bottom, and in areas with limited sites, the working range of the elevator is limited and the construction is affected.

Contents of the invention

The purpose of the present invention is to provide a movable platform for anti-collision wall construction, which solves the problems that the current bridge anti-collision wall construction requires a large number of scaffolds and has a long construction period, and achieves the purpose of reducing scaffold construction, shortening construction period and reducing costs.

The object of the present invention is achieved through the following technical solutions:

A movable platform for anti-collision wall construction, including a rectangular parallelepiped frame body, four rollers are installed on the bottom of the frame body, two extension arms are installed on one top long side of the frame body, and a There are a plurality of suspension rings, and a counterweight plate is arranged on the frame body, and the counterweight plate and the extension arm are distributed diagonally. The present invention adopts the frame body as the main body, and four rollers are arranged at the bottom of the frame body, the axial directions of the four rollers are unified, and the frame body can move under the drive of the rollers, centering on the axis of the frame body, at the center of the frame body Two extension arms are arranged on one side, and the extension arms respectively protrude from the frame body. The extension arms are located on the top of the frame body. Multiple suspension rings are arranged on the two extension arms. The extension arm and the extension arm are respectively located at both ends of the body diagonal of the frame body. When in use, the hanging basket can be hung on the suspension ring of the extension arm. The hanging basket is located outside the viaduct body, and the hanging basket is suspended. The operator can work in the hanging basket. The basket is used as the operator's working platform, and the counterweight plate is used as a matching mechanism to balance the gravity of the hanging basket and the operator. Multiple counterweights can be placed on the upper part. According to different weights, different numbers and weights of counterweights can be configured. , Through the rolling action of the rollers, the frame body can be moved, so as to realize the movement of the hanging basket and realize the mobile operation platform. It is not necessary to build a large-scale scaffold at the bottom of the viaduct, thereby shortening the construction period and reducing the construction cost.

A strut is installed between the two extension arms. Further speaking, as a further improvement of the present invention, a strut can be installed between the two extension arms. The external force in one direction has a stabilizing effect, avoiding the shaking of the hanging basket, which is beneficial to work.

Two pull rings are arranged on the top of the frame body above the balance plate. Furthermore, in order to maintain the balance effect of the weight plate on the hanging basket, two pull rings can be set on the frame above the weight plate. Form the stability of the counterweight plate, avoid the side of the counterweight plate touching the ground caused by uneven force, and maintain the counterweight effect.

A plurality of connecting plates are arranged on the frame body, and diagonal stay rods are also arranged on the frame body, and the ends of the diagonal stay rods are welded on the connecting plates. Furthermore, as a further improvement of the present invention, in order to make the frame body stronger, the stability of the frame body can be increased by installing diagonal stay rods on the frame body, and the principle of the most stable triangle is used to solve the safety performance of the frame body. At the same time, In order to increase the contact area between the frame body and the diagonal stay rods, a connecting plate can be used as an intermediate piece to connect the frame body and the diagonal stay rods.

The lifting ring and the extension arm are welded and fixed, and the height of the weld seam is 10-12mm. Further speaking, as an improvement point of the present invention, the inventor has obtained through repeated experiments and calculations that when the welding seam between the suspension ring and the extension arm is between 10 and 12 mm, the force requirements can be fully met. In the construction, there is a similar structure, but there is never a requirement for the length of the weld, and it is as much welding as possible. In fact, a lot of welding rods and labor are wasted, forming redundant welding. After actual calculation and summary, the inventor concluded that When the height of the welding seam is 10-12mm, the use requirements of the hanging basket can be fully met, the welding rod is saved, the welding cost is reduced, and the purpose of safe use with the minimum welding amount is realized.

Diagonal struts are also arranged between the extension arm and the frame body. Furthermore, in order to keep the suspension ring stable, a diagonal strut can be arranged between the extension arm and the frame body, and the diagonal strut, the extension arm, and the frame body form a triangle to form a stable structure.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

1. The present invention is a movable platform for anti-collision wall construction. The extension arms are located on the top of the frame body. Multiple suspension rings are arranged on the two extension arms. At the same time, a counterweight plate is arranged on the frame body. They are respectively located at both ends of the body diagonal of the frame body. When in use, the hanging basket can be hung on the lifting ring of the extension arm. The hanging basket is located outside the viaduct body, and the hanging basket is suspended in the air. The operator can work in the hanging basket. The hanging basket is used as an operation As a working platform for personnel, the counterweight plate is used as a matching mechanism for balancing the gravity of the hanging basket and the operator. Multiple counterweights can be placed on the upper part. According to different weights, different numbers and weights of counterweights can be configured. Through the roller The rolling action can move the frame body, so as to realize the movement of the hanging basket and realize the mobile operation platform, without building a large-scale scaffold at the bottom of the viaduct, thereby shortening the construction period and reducing the construction cost;

2 The invention is a movable platform for anti-collision wall construction. In order to maintain the balance effect of the weight plate on the hanging basket, two pull rings can be set on the frame body above the weight plate, and the pull ring and the weight plate can be connected to each other. Stretching by the pulling mechanism such as steel rope forms the stability of the counterweight plate, avoids the side of the counterweight plate touching the ground caused by uneven force, and maintains the effect of the counterweight;

3 The present invention is a movable platform for anti-collision wall construction. The inventor obtained through repeated experiments and calculations that when the welding seam between the suspension ring and the extension arm is between 10 and 12mm, it can fully meet the force requirements. In the current construction, there is a similar structure, but there has never been a requirement for the length of the weld, and it is always welded as much as possible. In fact, a lot of welding rods and labor are wasted, resulting in redundant welding. The inventor has actually calculated and summarized , it is concluded that when the height of the welding seam is 10-12mm, the use requirements of the hanging basket can be fully met, the welding rod is saved, the welding cost is reduced, and the purpose of safe use with the minimum welding amount is realized.

Description of drawings

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

Marks and corresponding component names in the attached drawings:

1-frame body, 2-roller, 3-extension arm, 4-hanging ring, 5-counterweight plate, 6-strut, 7-pull ring, 8-connecting plate, 9-diagonal tie rod, 10-counterweight , 11-diagonal brace.

Detailed ways

The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

Example

As shown in Figure 1, this embodiment is used in the Chengwen Road Reconstruction Project in the Chengdu Second Ring Road Reconstruction Project to slow congestion and maintain smoothness in the central urban area. The main artery (Chengwen Road), the project starts from the Chengwen Overpass on the Second Ring Road in the east, passes through South Shuangqing Road, Jinsha Station, Qingyang Avenue, Qingjiang West Road, and ends at the east side of the Supo Overpass on the Third Ring Road in the west. About 2.1 kilometers, construction mileage K1+705-K1+920 (that is, the main pier 43#-48#), located in the center of the original Chengwen Road, crossed with Qingyang Avenue (2.5 Ring Road), Qingjiang Middle Road Subway Station of Metro Line 4 (transfer station with Metro Line 7), which is located in this section; Qingjiang Middle Road Subway Station of Metro Line 4 (transfer station with Metro Line 7), the station length is 205.2m, the maximum width is 26m, and the maximum depth of the foundation pit is 28m ( Four-story station), located between piers 46# and 47# of this project, and the foundation pit depth of the rest of the project is 22m. Currently, the subway is undergoing platform deep foundation pit construction, slope support, etc., forming a suspended space; the subway foundation pit support distance The side of the cap platform of this project is only 2.3m, and the construction of the cover beam cannot be erected according to the conventional support. It is also a key project of the municipal government. After many consultations with relevant units such as the subway, work cannot be stopped to give way. According to the actual situation, the present invention is adopted. The invented movable platform for the construction of the anti-collision wall adopts the frame body 1 as the main body for the construction of the anti-collision wall, and four rollers 2 are arranged at the bottom of the frame body 1, and the axial directions of the four rollers 2 are unified, and The frame body 1 can move under the drive of the rollers 2, with the axis of the frame body 1 as the center, two extension arms 3 are arranged on one side of the frame body 1, and the extension arms 3 extend out of the frame body respectively, and the extension arms 3 are located on the frame body On the top of 1, a plurality of suspension rings 4 are arranged on the two extension arms 3, and the suspension rings 4 and the extension arms 3 are welded and fixed, and the height of the weld seam is 10-12mm; at the same time, a counterweight plate 5 is provided on the frame body 1, The counterweight plate 5 is used to place the counterweight weight 10. The counterweight plate 5 and the extension arm 3 are respectively located at both ends of the body diagonal of the frame body 1. Two Draw ring 7; a strut 6 is installed between the two extension arms 3, a diagonal brace 11 is set between the extension arm 3 and the frame body 1, the diagonal brace 11, the extension arm 3, and the frame body 1 form a triangle, Near the eight corners of the frame body 1 are provided with connecting plates 8, the connecting plates 8 are used for the welding of steel to increase its welding area, and the frame body 1 is also provided with diagonal tie rods 9, which intersect to form "ten" "Word structure.

The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiments according to the technology of the present invention falls within the scope of the present invention. within the scope of protection.

Claims (5)

1. the movable platform of an anti-collision wall construction, comprise the overall frame body (1) for cuboid, it is characterized in that: in the bottom of frame body (1), four rolling (2) is installed, a top longitudinal edge of frame body (1) is provided with two adjutages (3), adjutage (3) is provided with multiple suspension ring (4), frame body (1) is also provided with balancing disk (5), balancing disk (5) and adjutage (3) distribute in body diagonal, described suspension ring (4) and adjutage (3) are welded and fixed, and the height of its weld seam is 10 ~ 12mm.

2. the movable platform of a kind of anti-collision wall construction according to claim 1, is characterized in that: be provided with strut (6) between described two adjutages (3).

3. the movable platform of a kind of anti-collision wall construction according to claim 1, is characterized in that: frame body (1) top of balancing disk (5) top is provided with two draw rings (7).

4. the movable platform of a kind of anti-collision wall construction as claimed in any of claims 1 to 3, it is characterized in that: on described frame body (1), be provided with multiple junction plate (8), frame body (1) is also provided with diagonal member (9), and the welding edges of diagonal member (9) is on junction plate (8).

5. the movable platform of a kind of anti-collision wall construction according to claim 1, is characterized in that: be also provided with cross-brace (11) between described adjutage (3) and frame body (1).