CN208201662U - High pier bridge pier shaft reinforcing bar binding operation protective frame - Google Patents

Abstract

High pier bridge pier shaft reinforcing bar binding operation protective frame, the protective frame is the double-deck rectangle window frame structure that surrounding encloses, outer layer rectangle peripheral frame includes outer ring vertical bar (1), the outer ring cross bar (3) being connected between adjacent outer ring vertical bar, internal layer rectangle peripheral frame includes inner ring vertical bar (2), the inner ring cross bar (4) being connected between adjacent inner coil vertical bar, connect the horizontal brace rod (5) of outer ring cross bar and inner ring cross bar, the horizontal trapezoidal checkered steel plate (6) of the layer 2-3 being laid on outer ring cross bar and inner ring cross bar and horizontal brace rod, there are protection steel mesh belt (7) in horizontal trapezoidal checkered steel plate outer upper enclosing, ladder (8), which is overlapped with, between the horizontal trapezoidal checkered steel plate of adjacent two layers is welded with hanging ring on the outer ring vertical bar top at four angles.When the utility model is for the binding construction of pier shaft reinforcing bar, it is dismounted easily, the safety and construction efficiency of construction can be improved.

Description

High pier bridge pier body steel bar binding operation protective frame

technical field

The utility model belongs to the technical field of high bridge pier construction and is used for binding, installation and construction protection of steel bars on bridge pier bodies.

Background technique

Since the pier body of the high-pier bridge is constructed in sections, the construction height of each section of the pier body is generally 4-6m, and the next section of the pier body is bound with steel bars. On the operating platform of the section formwork at the top of the pier body, a simple operation frame is temporarily erected with steel pipes and fasteners, and then removed to install the formwork after the steel bars are bound. The steel pipe scaffolding operation platform needs to repeat the cycle of building and dismantling, which is time-consuming and labor-intensive. This disadvantage is especially obvious on bridges with variable cross-section solid piers, and there are great safety hazards in the operation of personnel and the stacking of materials on it. , A safety accident will occur if you are not careful.

Contents of the invention

The purpose of the utility model is to solve the technical and safety problems existing in the protection of the steel bar binding of the pier body of the existing high pier bridge, and to provide a simple, safe, efficient, low-cost and can improve the construction quality during the construction of the steel bar binding of the pier body. Operate the guard.

The purpose of this utility model is achieved through the following technical solutions:

The protective frame for the binding operation of steel bars on the pier body of the high pier bridge is a double-layer rectangular frame structure surrounded by four layers. A group of outer ring horizontal bars between adjacent outer ring vertical bars, the inner rectangular frame includes inner ring vertical bars arranged along the rectangular inner ring, and a group of inner rings horizontally connected between adjacent inner ring vertical bars from bottom to top Crossbar, the horizontal connecting rod connecting the outer ring cross bar and the inner ring cross bar, 2-3 layers of horizontal trapezoidal pattern steel plates laid on the outer ring cross bar, inner ring cross bar and horizontal connecting rod, on the outer upper part of the horizontal trapezoidal pattern steel plate The enclosure has a protective steel mesh belt, and a climbing ladder is lapped between the adjacent upper and lower layers of horizontal trapezoidal pattern steel plates. A hole with a movable cover is opened on the pattern steel plate at the top of the ladder, and is welded under each layer of trapezoidal pattern steel plates. There is a row of diagonal braces supporting the patterned steel plate platform; the outer ring vertical rods, inner ring vertical rods, outer ring horizontal bars, inner ring horizontal bars, horizontal connecting rods, and diagonal braces are all made of angle steel; The top of the ring vertical bar is welded with a suspension ring; the angle steel for making the bottom inner ring cross bar has a right-angled side vertically downward, and a connecting hole is processed on the horizontal right-angled side at the top.

In the utility model, diagonal scissors braces are welded on the outside of the outer rectangular enclosure. On the two opposite long sides of the outer rectangular frame, 1-3 evenly distributed outer ring vertical bars are added between the outer ring vertical bars at both ends; Circle vertical rod. The horizontal trapezoidal pattern steel plate arranged in the long side of the double-layer rectangular enclosure and the horizontal trapezoidal pattern steel plate arranged in the short side are arranged at the same height or at different heights by dislocation. A detachable temporary operating platform is installed between the outer rectangular frame and the inner rectangular frame.

The utility model is designed in combination with the characteristics that the high pier bridge is turned over and constructed in sections, the formwork of the top section is not removed, and the floor-standing scaffolding is not erected around the pier body. The utility model is hoisted before the steel bars of the next section pier body are tied When in place, the operator stands in the protective frame and stands on the patterned steel plate platform to carry out the steel bar binding operation, which is safe and labor-saving. After the steel bar binding acceptance is completed, the protective frame is hoisted to other pier bodies to continue the pier body steel bar binding work.

When the utility model is used, only the vertical rods of the outer ring on the two long sides of the outer rectangular enclosure are placed on the top section formwork operating platform, and the space utilization rate is relatively high. The cross bar is integrated with the top section formwork to ensure the stability of the entire protective frame under wind load. The checkered steel plate platform on each floor adopts a trapezoidal shape gradually indented from the outside to the inside, and most of the loads such as the self-weight of the protective frame, the self-weight of the workers, and the materials and tools stacked on it are transmitted to the top section formwork of the bridge pier body, and the top section is lowered accordingly The load borne by the operating platform that comes with the formwork has improved the shortcomings of the existing simple steel protective frame, such as high safety risks, low construction efficiency, and high construction costs. The utility model has stable and reliable structure, easy and safe installation and operation, and can be hoisted by bridge pier body construction hoisting equipment without additional installation and dismantling, and the maintenance cost is low, and it can be used for long-term turnover. The utility model improves the binding efficiency of the steel bars of the pier body and greatly reduces the construction cost, and at the same time, the safety of the operating personnel is also greatly guaranteed.

Below in conjunction with accompanying drawing of description, the utility model is further elaborated.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is a side view of the utility model;

Fig. 4 is the top view of the utility model (the checkered steel plate is not drawn);

Fig. 5 is a schematic diagram of the utility model placed on the top section formwork operating platform during the construction of a high-pier bridge.

Detailed ways

As shown in Figures 1 to 4, the protective frame for the binding operation of steel bars on the pier body of the high pier bridge is a double-layer rectangular enclosure structure surrounded by four layers; the outer rectangular enclosure includes the outer ring vertical rod 1 arranged along the outer rectangular ring. 1. A group of outer ring cross bars 3 that are horizontally connected between adjacent outer ring vertical bars from bottom to top; its inner rectangular enclosure includes inner ring vertical bars 2 arranged along the rectangular inner ring, and is horizontally connected to adjacent outer ring vertical bars from bottom to top. A set of inner ring cross bars 4 between the inner ring vertical bars. The distance between the outer rectangular frame and the inner rectangular frame is generally 50cm. A horizontal connecting rod 5 is connected between the outer ring cross bar and the inner ring cross bar, and 2-3 layers of horizontal trapezoidal pattern steel plates 6 are laid on the outer ring cross bar, the inner ring cross bar and the horizontal connecting rod (in order to make the structure clearer, Fig. 1 only schematically draws part of the checkered steel plate, and Fig. 4 is a schematic diagram of unlaid checkered steel plate), and there is a protective steel mesh belt 7 on the outer upper part of the horizontal trapezoidal checkered steel plate (Fig. 1 only schematically draws part Protective steel mesh belt), a climbing ladder 8 is overlapped between the adjacent upper and lower layers of horizontal trapezoidal pattern steel plates, and a hole with a movable cover plate 9 is opened on the pattern steel plate at the top of the ladder, and is welded under each layer of trapezoidal pattern steel plates There is a row of diagonal braces 10 supporting the patterned steel plate platform to support the trapezoidal patterned steel plate more firmly to ensure the safety of workers standing on the steel plate platform. The outer ring vertical bar 1, the inner ring vertical bar 2, the outer ring horizontal bar 3, the inner ring horizontal bar 4, the horizontal connecting rod 5, and the diagonal brace 10 are all made of angle steel with a specification of 75x75x5mm. The tops of the outer ring vertical rods at four corners are welded with suspension rings 11, so as to facilitate the overall hoisting of the protective frame. Make the angle steel of the inner ring crossbar 4 of the bottom layer, one of its right-angled sides is vertically downward, and it is stuck on the top section formwork 14 of the pier body 13 in the long direction, and a connecting hole 4b is processed on the horizontal right-angled side 4a at the top. The way of high-strength bolt connection connects the protective frame and the top section formwork as a whole. Diagonal scissors braces 12 are welded on the outside of the outer rectangular frame to increase the structural strength. In this embodiment, the scissors braces are only welded outside the two relatively long frames. On the two opposite long sides of the outer rectangular frame, 1-3 evenly distributed outer ring vertical bars are added between the outer ring vertical bars 1 at both ends to ensure the structural strength; on the inner layer rectangular frame, Inner ring vertical rods 2 are only provided at the four corners. According to actual needs, the horizontal trapezoidal pattern steel plate set in the long side of the double-layer rectangular enclosure and the horizontal trapezoidal pattern steel plate set in the short side can be set at the same height, or can be misplaced at different heights. This embodiment is The horizontal trapezoidal pattern steel plate in the long side and the horizontal trapezoidal pattern steel plate in the short side are set in the lower two layers in dislocation. Circle level operating platform. The utility model can also install a detachable temporary operating platform between the outer rectangular frame and the inner rectangular frame as required, and dismantle it when not needed.

The utility model can ensure the safety of the steel bar binding operation of the pier body of the high pier bridge. During the construction process, the operators are located in the protective frame to carry out operations. The protective frame is generally 6m high. The long side of the double-layer rectangular enclosure is equipped with an operating platform built with 3 layers of checkered steel plates, with a distance of 2m, and 2 layers of operating platforms are set in the short side. , with a distance of 2.7m, a ladder for people to go up and down is set on the long side, and a 450*550mm hole is set at the top of the ladder, and the hole is equipped with a flip-coverable movable cover. The checkered steel plate platform on each floor is a trapezoid gradually indented from the outside to the inside, and most of the loads such as the self-weight of the protective frame, the self-weight of the workers, and the materials and tools stacked on it are transmitted to the top section formwork 14 of the bridge pier body 13, and the corresponding reduction The load borne by the operating platform that comes with the top section formwork. At the same time, a 1.2m-high border protective railing is set along the outer ring vertical bar 1 on each patterned steel platform, and a protective steel mesh belt 7 with a thickness of 0.5mm and a diameter of 5mm is used between the protective railing and the patterned steel plate along the perimeter of the protective frame. closed.

The utility model is hung on the operating platform of the top section formwork on the pier body 13 through the suspension ring 11 before the pier body steel bars are bound, and it is hoisted out after the steel bar binding is completed, so that the next section Section template installation. The utility model is suitable for the variable cross-section and constant cross-section solid piers whose pier body adopts the construction technology of turning over formwork.

Claims (5)

1. High pier bridge pier body steel bar binding operation protective frame, it is characterized in that, described protective frame is the double-deck rectangular enclosing frame structure that closes all around, and outer layer rectangular enclosing frame comprises the outer ring vertical bar ( 1), from bottom to top, a group of outer ring horizontal bars (3) connected horizontally between adjacent outer ring vertical bars, and the inner rectangular frame includes inner ring vertical bars (2) arranged along the rectangular inner ring, from bottom to top A set of inner ring cross bars (4) horizontally connected between the adjacent inner ring vertical bars, and horizontal connecting bars (5) connecting the outer ring cross bars and the inner ring cross bars are laid on the outer ring cross bars and the inner ring cross bars and The 2-3 layers of horizontal trapezoidal pattern steel plates (6) on the horizontal connecting rod are surrounded by a protective steel mesh belt (7) on the outer upper part of the horizontal trapezoidal pattern steel plates, and are overlapped between the adjacent upper and lower layers of horizontal trapezoidal pattern steel plates There is a climbing ladder (8), and a hole with a movable cover plate (9) is opened on the patterned steel plate at the top of the climbing ladder, and a row of diagonal braces (10) supporting the patterned steel plate platform are welded under each layer of trapezoidal patterned steel plate; Ring vertical bar (1), inner ring vertical bar (2), outer ring cross bar (3), inner ring cross bar (4), horizontal connecting rod (5), and diagonal braces (10) are all made of angle steel; The top of the vertical bar of the outer circle of the two angles is welded with a suspension ring (11); the angle steel of the inner circle cross bar (4) of the bottom layer is made, and one right-angled side is vertically downward, and a connection is processed on the horizontal right-angled side (4a) at the top hole (4b). 2. The high-pier bridge pier body reinforcing bar binding operation protective frame according to claim 1, characterized in that, a diagonal scissor brace (12) is welded on the outside of the outer rectangular enclosure. 3. The high-pier bridge pier body reinforcing bar binding operation protective frame according to claim 1, characterized in that, on the two long sides opposite to the outer rectangular enclosure, an additional set is made between the outer ring vertical bars (1) at both ends There are 1-3 evenly distributed outer ring vertical rods; on the inner rectangular frame, inner ring vertical rods (2) are respectively arranged only at the four corners. 4. according to claim 1 or 2 or 3 described high pier bridge pier body reinforcing bar binding operation protective frame, it is characterized in that, the horizontal trapezoidal pattern steel plate that is arranged in the long side of the double-layer rectangular enclosing frame and the horizontal trapezoidal pattern steel plate that is arranged in the short side The horizontal trapezoidal steel plates are arranged at the same height or at different heights. 5. The protective frame for binding steel bars on the pier body of a high pier bridge according to claim 1, wherein a detachable temporary operating platform is installed between the outer rectangular frame and the inner rectangular frame.