Prestressed bridge stand column top tensioning operation platform

Abstract

The invention discloses a prestressed bridge stand column top tensioning operation platform which comprises a shaping operation platform located on the surface of the top of a bridge stand column and a plurality of steel bar hoops evenly arranged at the bottom of the shaping operation platform. The shaped operation platform is connected to a longitudinal main rib extending out of the top of the corresponding bridge stand column in a sleeving mode through a steel bar hoop. The operation space for constructing the prestress tensioning component on the top surface of the bridge stand column can be widened, and the prestress tensioning component can be safely and conveniently constructed on the bridge stand column.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a tensioning operation platform on the top of a prestressed bridge column. Background Art

[0002] The columns of bridge buildings are usually independent piers. The bridge columns adopt a vertical prestressed self-locking anchor system to enhance the bending and folding strength of the columns. The tensioning end anchor is located at the top of the column. Due to the high height and small cross-sectional size of the column, under the narrow construction conditions of the top surface of the column, it is necessary to place the tensioning equipment and ensure the operating space for the construction personnel, which cannot well guarantee the construction safety. Summary of the invention

[0003] The purpose of the present invention is to provide a tensioning operation platform on the top of a prestressed bridge column to solve the problem that the top surface of the bridge column is narrow and it is impossible to construct prestressed tensioning components.

[0004] In order to solve the above technical problems, the present invention provides a prestressed bridge column top tensioning operation platform, including a standardized operating platform located on the top surface of the bridge column, and a plurality of steel hoops evenly arranged at the bottom of the standardized operating platform. The standardized operating platform is connected to the longitudinal main reinforcement extending from the top of the corresponding bridge column through the steel hoops.

[0005] Furthermore, the present invention provides a prestressed bridge column top tensioning work platform, wherein the steel bar hoop includes two hoops, one end of the two hoops are rotatably connected by a hinge, and the other ends of the two hoops are fastened by locking bolts, one end of one of the hoops is vertically connected to an adapter plate, and the adapter plate is connected to a standardized operating platform by angle steel.

[0006] Furthermore, in the prestressed bridge column top tensioning operation platform provided by the present invention, the adapter plate and the angle steel are connected by high-strength bolts.

[0007] Furthermore, the prestressed bridge column top tensioning work platform provided by the present invention has a pad provided on the longitudinal main reinforcement connected to the steel bar clamp, the pad is set on a standardized operating platform, the longitudinal main reinforcement located on the pad is threadedly connected with a steel bar nut, and the steel bar nut is against the pad.

[0008] Furthermore, the present invention provides a prestressed bridge column top tensioning work platform, the standardized operating platform includes a rectangular annular central frame located on the top surface of the bridge column, a rectangular annular peripheral frame extending out of the periphery of the bridge column, a plurality of main keels vertically connected and evenly distributed between the central frame and the peripheral frame, the peripheral frame is partially located on the top surface of the bridge column and partially extends out of the periphery of the bridge column and is suspended, a rectangular annular outer platform plate laid on the peripheral frame, and a guardrail vertically connected to the peripheral frame.

[0009] Furthermore, the prestressed bridge column top tensioning work platform provided by the present invention, the standardized operation platform also includes a rectangular annular inner platform plate arranged on the outer platform plate, the inner platform plate covers the longitudinal main reinforcement and its inner side line is close to the longitudinal main reinforcement, and the inner opening area of ​​the inner platform plate is larger than the area of ​​the center frame.

[0010] Furthermore, in the prestressed bridge column top tensioning work platform provided by the present invention, the outer platform plate and the inner platform plate are both patterned steel plates.

[0011] Furthermore, in the prestressed bridge column top tensioning work platform provided by the present invention, the main keel and the connection between the central frame and the peripheral frame at the corresponding position thereof are detachably connected by bolts.

[0012] Furthermore, the prestressed bridge column top tensioning operation platform provided by the present invention, the standardized operation platform also includes a skirting board arranged between the outer frame and the guardrail.

[0013] Furthermore, in the prestressed bridge column top tensioning work platform provided by the present invention, inclined tie rods are arranged in the four corners of the central frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The prestressed bridge column top tensioning work platform provided by the present invention is connected to the longitudinal main reinforcement extending from the top of the corresponding bridge column through a steel bar clamp, so that the standardized operation platform is firmly connected to the top surface of the bridge column, thereby widening the construction operation space through the added standardized operation platform, so as to facilitate the stacking of tensioning components or construction equipment, tools, etc. on the top surface of the bridge column and the standardized operation platform, and the construction workers can use the standardized operation platform as a foothold to construct the prestressed tensioning components on the bridge column, thereby solving the problem that the top of the bridge column is narrow and there is no operation space and the prestressed tensioning components cannot be constructed. The standardized operation platform with widened construction operation space provides a working space for the construction workers, and the safety belts worn by the construction workers can be connected to the standardized operation platform, thereby ensuring the safety of the construction workers in high-altitude operations when constructing prestressed tensioning components on the bridge column. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the planar structure of the prestressed bridge column top tensioning work platform frame structure installed on the bridge column;

[0017] Figure 2 It is a schematic diagram of the planar structure in which the tensioning work platform on the top of the prestressed bridge column is installed on the bridge column;

[0018] Figure 3 It is a schematic diagram of the elevation structure of the tensioning work platform on the top of the prestressed bridge column;

[0019] Figure 4 yes Figure 1 Enlarged view of part A in the middle;

[0020] Figure 5 It is a schematic diagram of the plane structure of the steel bar hoop;

[0021] Figure 6 It is a schematic diagram of the elevation structure of the steel bar hoop;

[0022] Figure 7 It is a schematic diagram of the plan structure of the connection between the central frame and the main keel;

[0023] Figure 8 It is a schematic diagram of the plane structure of the peripheral frame;

[0024] Fig. 9 It is a schematic diagram of the planar structure of the outer platform plate;

[0025] Fig.10 It is a schematic diagram of the planar structure of the inner platform plate;

[0026] As shown in the figure:

[0027] 100. Tensioning work platform on the top of prestressed bridge columns, 110. Standardized operating platform, 111. Central frame, 112. Peripheral frame, 113. Main keel, 114. Outer platform plate, 115. Inner platform plate, 116. Guardrail, 117. Skirting board, 118. Diagonal rod, 119. Vertical plate, 120. Steel bar hoop, 121. Hoop plate, 122. Hinged part, 123. Locking bolt, 124. Adapter plate, 125. High-strength bolt, 130. Angle steel, 140. Pad, 150. Steel bar nut;

[0028] 200. Bridge column. 201. Longitudinal main reinforcement. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the accompanying drawings: The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0030] Please refer to Figure 1 The embodiment of the present invention provides a prestressed bridge column top tensioning operation platform 100, including a shaped operation platform 110 located on the top surface of the bridge column 200, and a plurality of steel bar clamps 120 evenly arranged at the bottom of the shaped operation platform 110. The shaped operation platform 110 is sleeved and connected to the longitudinal main reinforcement 201 extending from the top of the corresponding bridge column 200 through the steel bar clamps 120. The top surface of the bridge column 200 refers to the concrete structural surface.

[0031] The prestressed bridge column top tensioning operation platform 100 provided by the embodiment of the present invention is sleeved and connected to the longitudinal main reinforcement 201 extending from the top of the corresponding bridge column 200 through the steel bar hoop 120, so that the standardized operation platform 110 is firmly connected to the top surface of the bridge column 200, thereby widening the construction operation space through the additional standardized operation platform 110, so that the tensioning components or construction equipment and tools, etc. can be stacked on the top surface of the bridge column 200 and the standardized operation platform 110, and the construction workers can Workers can use the standardized operating platform 110 as a foothold to construct prestressed tensioned components on the bridge column 200, thereby solving the problem that the top of the bridge column 200 is narrow and there is no operating space to construct prestressed tensioned components. The standardized operating platform 110 with widened construction operation space provides a working space for construction workers, and the safety belts worn by construction workers can be connected to the standardized operating platform 110, thereby ensuring the safety of construction workers performing high-altitude operations when constructing prestressed tensioned components on the bridge column 200.

[0032] Please refer to Figure 1 , Figures 4 to 6In order to prevent the standardized operation platform 110 from being displaced in the horizontal direction of the bridge column 200, the prestressed bridge column top tensioning operation platform 100 provided in the embodiment of the present invention, the steel bar hoop 120 includes two hoop plates 121, one end of the two hoop plates 121 is rotatably connected by a hinge 122, and the other end of the two hoop plates 121 is fastened by a locking bolt 123, one end of one hoop plate 121 is vertically connected with an adapter plate 124, and the adapter plate 124 is connected to the standardized operation platform 110 through an angle steel 130. The locking bolt 123 is a simple diagram represented by a straight line, and the hinge 122 includes but is not limited to a hinge. The concave cavity of the hoop plate 121 can be a semicircle that matches the outer diameter of the longitudinal main reinforcement 201. In order to adapt to longitudinal main reinforcements 201 of different diameters, the concave cavity of the hoop plate 121 can be an angle. After the two hoops 121 are sleeved on the longitudinal main reinforcement 201, the locking bolts 123 are passed through the two hoops 121 to lock the steel bar hoop 120 on the longitudinal main reinforcement 201. At this time, the steel bar hoop 120 is connected to the longitudinal main reinforcement 201, which can limit the position of the standardized operating platform 110 in the horizontal direction, prevent it from being displaced in the horizontal direction, and improve its stability when connected to the bridge column 200.

[0033] Please refer to Figure 1 , Figure 4 and Figure 5 In order to improve the reliable connection between the steel bar hoop 120 and the standardized operating platform 110, the prestressed bridge column top tensioning operating platform 100 provided in an embodiment of the present invention, the adapter plate 124 and the angle steel 130 are connected by high-strength bolts 125.

[0034] Please refer to Figures 1 to 4 In order to improve the stability of the standardized operation platform 110 connected to the longitudinal main reinforcement 201, the prestressed bridge column top tensioning operation platform 100 provided by the embodiment of the present invention is provided with a pad 140 through the longitudinal main reinforcement 201 connected with the steel bar hoop 120. The pad 140 is arranged on the standardized operation platform 110. The longitudinal main reinforcement 201 located on the pad 140 is threadedly connected with a steel bar nut 150, and the steel bar nut 150 is against the pad 140. The pad 140 can increase the contact area with the top surface of the bridge column 200, avoid the problem of the steel bar nut 150 being directly locked on the top surface of the bridge column 200 and causing damage to the surface. The standardized operation platform 110 is limited in the height direction by the steel bar nut 150 to prevent the standardized operation platform 110 from being displaced in the height direction, thereby improving the stability of the standardized operation platform 110 arranged on the top surface of the bridge column 200.

[0035] Please refer to Figures 1 to 3 , Figures 7 to 9In order to improve the stability of the standardized operation platform 110 set on the bridge column 200, the embodiment of the present invention provides a prestressed bridge column top tensioning operation platform 100, the standardized operation platform 110 includes a rectangular ring-shaped central frame 111 located on the top surface of the bridge column 200, a rectangular ring-shaped peripheral frame 112 extending from the periphery of the bridge column 200, a plurality of main keels 113 vertically connected and evenly distributed between the central frame 111 and the peripheral frame 112, the peripheral frame 112 is partially located on the top surface of the bridge column 200 and partially extends from the periphery of the bridge column 200 and is suspended in the air, a rectangular ring-shaped outer platform plate 114 laid on the peripheral frame 112, and a guardrail 116 vertically connected to the peripheral frame 112. The main keels 113 include multiple keels distributed horizontally and vertically, and eight keels are shown in the figure. The main keels 113 are partially located on the top surface of the bridge column 200 and can support the suspended peripheral frame 112 to avoid the risk of the peripheral frame 112 falling. The central frame 111 is connected to the central frame 111 through the main keel 113, and the central frame 111 can increase the structural rigidity of the standardized operating platform 110 and reduce the structural deformation of the standardized operating platform 110, especially the structural deformation of the peripheral frame 112, and further improve the reliability and stability of the connection to the peripheral frame 112. The construction work surface is widened by the peripheral frame 112 in a suspended state and the outer platform plate 114 thereon. The above-mentioned pad 140 can be set on the main keel 113 of the standardized operating platform 110. In order to increase the structural stability of the standardized operating platform 110, the pad 140 has two through holes or a waist-shaped hole. Each pad 140 is sleeved on two longitudinal main bars 201 distributed on both sides of each main keel 113 through two through holes or a waist-shaped hole, and each longitudinal main bar 201 is installed with a steel nut 150.

[0036] Please refer to Figure 2 , Fig. 9 and Fig.10In order to shield the longitudinal main reinforcement 201 and increase the working surface, the prestressed bridge column top tensioning operation platform 100 provided in the embodiment of the present invention, the standardized operation platform 110 also includes a rectangular ring-shaped inner platform plate 115 arranged on the outer platform plate 114, the inner platform plate 115 covers the longitudinal main reinforcement 201 and its inner side line is close to the longitudinal main reinforcement 201, and the inner opening area of ​​the inner platform plate 115 is larger than the area of ​​the central frame 111. At this time, a vertical plate 119 is arranged vertically downward inside the inner side line of the inner platform plate 115, and the vertical plate 119 is inserted into the inner opening of the outer platform plate 114 to shield the longitudinal main reinforcement 201 through the vertical plate 119 of the inner platform plate 115, and at the same time, the inner platform plate 115 also increases the working surface. Since the inner platform plate 115 is located on the top surface of the bridge column 200, its stability is higher than that of the outer platform plate 114 in a suspended state, and the construction workers are safer when working on the inner platform plate 115.

[0037] In order to avoid slipping, the prestressed bridge column top tensioning work platform 100 provided in the embodiment of the present invention, the outer platform plate 114 and the inner platform plate 115 can both be patterned steel plates.

[0038] Please refer to Figure 1 to Figure 2 In order to facilitate the assembly of the standardized operating platform 110, the prestressed bridge column top tensioning operating platform 100 provided in an embodiment of the present invention has the main keel 113 and the connection between the central frame 111 and the peripheral frame 112 at the corresponding position thereof detachably connected by bolts.

[0039] Please refer to Figure 3 In order to prevent the tensioning components, tools, etc. on the standardized operating platform 110 from falling, the prestressed bridge column top tensioning operation platform 100 provided by the embodiment of the present invention, the standardized operating platform 110 also includes a skirting board 117 arranged between the outer frame 112 and the guardrail 116.

[0040] Please refer to Figure 1 to Figure 2 In order to improve the structural stability of the central frame 111 , the prestressed bridge column top tensioning work platform 100 provided in the embodiment of the present invention has inclined rods 118 arranged in the four corners of the central frame 111 .

[0041] The prestressed bridge column top tensioning operation platform 100 provided in the embodiment of the present invention can integrally process the standardized operation platform 110 according to the cross-sectional dimensions of different bridge columns 200, and integrally hoist the standardized operation platform on the top surface of the bridge column 200 through the hoisting equipment, and connect the standardized operation platform 110 with the longitudinal main reinforcement 201 exposed on the bridge column 200 through the steel bar clamp 120, thereby expanding the operation space on the top surface of the bridge column 200 to facilitate the construction of prestressed tensioning components thereon. The prestressed bridge column top tensioning operation platform 100 is not limited to the bridge column 200, but can also be various columns on the columns of other buildings for constructing prestressed tensioning components.

[0042] The present invention is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. In this way, if these modifications and changes of the present invention fall within the scope of the claims of the present invention, the present invention is also intended to include these changes and changes.

Claims

1. A prestressed bridge column top tensioning work platform, characterized in that: It includes a standardized operating platform located on the top surface of a bridge column, and a plurality of steel bar hoops evenly arranged at the bottom of the standardized operating platform. The standardized operating platform is connected to the longitudinal main reinforcement extending from the top of the corresponding bridge column through the steel bar hoops.

2. The prestressed bridge column top tensioning operation platform according to claim 1, characterized in that: The steel bar hoop comprises two hoops, one end of which is rotatably connected by a hinge, and the other end of which is fastened by locking bolts. One end of one of the hoops is vertically connected to an adapter plate, and the adapter plate is connected to a standardized operating platform by angle steel.

3. The prestressed bridge column top tensioning operation platform according to claim 2 is characterized in that: The adapter plate and the angle steel are connected by high-strength bolts.

4. The prestressed bridge column top tensioning operation platform according to claim 2, characterized in that: A pad is sleeved on the longitudinal main reinforcement connected with the steel bar clamp, the pad is arranged on a standardized operating platform, and the longitudinal main reinforcement located on the pad is threadedly connected with a steel bar nut, which rests on the pad.

5. The prestressed bridge column top tensioning operation platform according to claim 1, characterized in that: The standardized operating platform includes a rectangular annular central frame located on the top surface of the bridge column, a rectangular annular peripheral frame extending out of the periphery of the bridge column, a plurality of main keels vertically connected and evenly distributed between the central frame and the peripheral frame, a peripheral frame partially located on the top surface of the bridge column and partially extending out of the periphery of the bridge column in a suspended arrangement, a rectangular annular outer platform plate laid on the peripheral frame, and a guardrail vertically connected upward to the peripheral frame.

6. The prestressed bridge column top tensioning operation platform according to claim 5, characterized in that: The standardized operating platform also includes a rectangular annular inner platform plate arranged on the outer platform plate, the inner platform plate covers the longitudinal main ribs and its inner side line is close to the longitudinal main ribs, and the inner opening area of ​​the inner platform plate is larger than the area of ​​the central frame.

7. The prestressed bridge column top tensioning operation platform according to claim 6, characterized in that: The outer platform plate and the inner platform plate are both patterned steel plates.

8. The prestressed bridge column top tensioning operation platform according to claim 5, characterized in that: The main keel is detachably connected to the connection between the central frame and the peripheral frame at the corresponding position thereof by bolts.

9. The prestressed bridge column top tensioning operation platform according to claim 5, characterized in that: The standardized operating platform also includes a skirting board arranged between the peripheral frame and the guardrail.

10. The prestressed bridge column top tensioning operation platform according to claim 5, characterized in that: The four corners of the central frame are provided with diagonal tie rods.

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