A large-span high-drop water pier construction temporary support device and a construction method

Abstract

The application is a large-span high-drop water pier construction temporary support device and construction method, which comprises a cross beam, the cross beam is located at the front and back of the steel pipe pile, the upper and lower sides of the cross beam are connected with a plurality of supporting brackets, the two ends of the top of the cross beam are connected with inclined braces, the top of the inclined braces of the same cross beam is connected, the top of the front and back inclined braces is connected with a fixed pulley support rod, the outer side of the fixed pulley support rod is sleeved with a fixed pulley, the middle of the inclined brace is connected with a cross brace, a plurality of horizontal braces are vertically connected between the front and back cross braces, the top of the horizontal brace is connected with a rope winding machine support plate, the top of the rope winding machine support plate is welded with a hydraulic automatic rope winding machine, the hydraulic automatic rope winding machine is connected with a plurality of steel strands, the steel strands pass through the fixed pulley, and the steel strands on both sides of the pier are connected with a Bailey piece support rod. The application has high safety and good stability, the construction machinery is arranged on the pier for construction, and the safety accidents are small.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bridge construction technology, in particular to a large-span high-fall water pier construction temporary support device and construction method. BACKGROUND

[0002] In recent years, more and more steel structure bridges are applied in the bridge construction in China, and the construction pier is a temporary bridge for the running of hoisting and transporting machinery, which is composed of piers and beam span structures and can directly serve the construction. The construction pier is widely used in bridge construction. As a temporary structure, the safety and stability of the construction pier are relatively poor compared with the permanent structure. When the construction of the water pier with large span and high fall is carried out, the cantilever construction is usually used to build the pier, and the construction machinery needs to be arranged on the Bailey piece of the cantilever for construction. At this time, the distortion of the cantilever part of the pier Bailey piece is large, and safety accidents are prone to occur.

[0003] Based on this, the present application provides a large-span high-fall water pier construction method to solve the above problems. SUMMARY

[0004] The present application aims to solve the problems of the prior art and provides a large-span high-fall water pier construction temporary support device and construction method.

[0005] To achieve the above purpose, the following technical scheme is adopted: a large-span high-fall water pier construction temporary support device, comprising a cross beam, the cross beam is located on the front and rear sides of the steel pipe pile, a plurality of supporting corbels are connected to the upper and lower sides of the cross beam, a slope is connected to the top of each cross beam, the top of the slope of the same cross beam is connected, a fixed pulley support rod is connected between the top of the front and rear slopes, a fixed pulley is sleeved on the outside of the fixed pulley support rod, a cross support is connected to the middle of the slope, a plurality of horizontal supports are vertically connected between the front and rear cross supports, a rope winding machine support plate is connected to the top of the horizontal support, a hydraulic automatic rope winding machine is welded to the top of the rope winding machine support plate, a plurality of steel strands are connected to the hydraulic automatic rope winding machine, the steel strands pass through the fixed pulley, and a Bailey piece support rod is connected between the steel strands on both sides of the pier.

[0006] Further, the cross beam and the slope are connected through a foot support, and the foot support and the cross beam are connected through a bolt.

[0007] Further, the supporting corbel and the steel pipe pile are welded and connected.

[0008] Further, the rope winding machine support plate and the cross support are welded and connected.

[0009] A construction method of a large-span high-fall water pier construction temporary support device, comprising the following steps:

[0010] S1. On the completed construction of the trestle, the steel pipe pile is welded with a support bracket, the cross beam is arranged between the upper and lower support brackets, and the remaining structure is fixed on the cross beam through bolts;

[0011] S2. The hoisting machinery arranges the Bailey beam piece of the next span of the trestle, arranges the Bailey piece support rod after the arrangement is completed, and connects with the steel wire, tightens the steel wire through the hydraulic automatic rope collector, pulls the Bailey piece support rod and props up the Bailey piece;

[0012] S3. The pile driving machinery carries out the steel pipe pile hole on the Bailey piece;

[0013] S4. After the hole is completed, the hoisting machinery arranges the steel pipe pile and completes the whole construction of the span of the trestle;

[0014] S5. The temporary support device of the previous span is disassembled and arranged under the next span of the steel pipe pile, and the above construction steps are repeated to carry out the construction of the trestle until the construction of the whole trestle is completed.

[0015] The beneficial effects of the present application are: the present application has high safety and good stability, the construction machinery is arranged on the trestle for construction, and the safety accidents are small. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present application;

[0017] Figure 2 It is a schematic diagram of the construction step S1 of the present application;

[0018] Figure 3 It is a schematic diagram of the construction step S2 of the present application;

[0019] Figure 4 It is a schematic diagram of the construction step S3 of the present application;

[0020] Figure 5 It is a schematic diagram of the construction step S4 of the present application;

[0021] Figure 6 It is a schematic diagram of the construction step S5 of the present application;

[0022] In the figure: 1-cross beam; 2-steel pipe pile; 3-support bracket; 4-inclined brace; 5-foot brace; 6-cross brace; 7-flat brace; 8-rope collector support plate; 9-hydraulic automatic rope collector; 10-fixed pulley support rod; 11-fixed pulley; 12-steel wire; 13-Bailey piece support rod;

[0023] The present application will be described in detail below with reference to the embodiments of the present application. DETAILED DESCRIPTION

[0024] The present application will be described in detail below with reference to the embodiments of the present application.

[0025] AsFigures 1-6 As shown, a large-span high-drop water pier construction temporary support device, including crossbeam 1, crossbeam 1 is located in front and back of steel pipe pile 2, crossbeam 1 upper and lower sides are connected with a plurality of supporting corbel 3, supporting corbel 3 is welded with steel pipe pile 2, both ends of crossbeam 1 top are connected with inclined strut 4, crossbeam 1 is connected with inclined strut 4 through foot brace 5, foot brace 5 is connected with crossbeam 1 through bolt. The top of the same crossbeam 1 top of inclined strut 4 is connected, the top of front and back inclined strut 4 is connected with fixed pulley strut 10, the outer side of fixed pulley strut 10 is sleeved with fixed pulley 11, the middle of inclined strut 4 is connected with cross strut 6, a plurality of flat strut 7 is vertically connected between the front and back cross strut 6, the top of flat strut 7 is connected with rope winding machine support plate 8, rope winding machine support plate 8 is welded with cross strut 6, the top of rope winding machine support plate 8 is welded with hydraulic automatic rope winding machine 9, a plurality of steel strand 12 is connected with hydraulic automatic rope winding machine 9, steel strand 12 is wound around fixed pulley 11, the steel strand 12 between the two sides of the pier is connected with belay piece strut 13, the belay piece strut 13 props up the belay piece top chord and plays a supporting role.

[0026] A construction method of a large-span high-drop water pier construction temporary support device, comprising the following steps:

[0027] S1. In the completed construction pier, steel pipe pile 2 is welded with supporting corbel 3, crossbeam 1 is arranged between the upper and lower supporting corbel 3, and the remaining part of the structure is fixed on the crossbeam 1 through bolts;

[0028] S2. The hoisting machinery is arranged with the next span pier belay piece, the belay piece strut 13 is erected and connected with the steel strand 12 after the arrangement is completed, the steel strand 12 is tightened through the hydraulic automatic rope winding machine 9, the belay piece strut 13 is pulled and props up the belay piece;

[0029] S3. The pile driving machinery is used to drill holes on the belay piece;

[0030] S4. After the hole drilling is completed, the hoisting machinery is used to arrange the steel pipe pile 2 and complete the construction of the pier;

[0031] S5. The temporary support device of the previous span is disassembled and arranged under the next span steel pipe pile 2, and the above construction steps are repeated to construct the pier until the construction of the pier is completed.

[0032] The above is an exemplary description of the present application, and it is obvious that the specific implementation of the present application is not limited by the above method. Various improvements or direct applications to other occasions using the method concept and technical solution of the present application are within the protection scope of the present application.

Claims

1. A construction method of a large-span high-drop water pier construction temporary support device, characterized in that, The large-span high-drop water pier construction temporary support device comprises a cross beam (1), the cross beam (1) is located on the front and back of a steel pipe pile (2), a plurality of supporting corbels (3) are connected to the upper and lower sides of the cross beam (1), inclined braces (4) are connected to the top of both ends of the cross beam (1), the top of the inclined braces (4) on the same cross beam (1) is connected, a fixed pulley brace (10) is connected between the top of the front and rear inclined braces (4), a fixed pulley (11) is sleeved on the outside of the fixed pulley brace (10), a cross brace (6) is connected to the middle of the inclined brace (4), a plurality of horizontal braces (7) are vertically connected between the front and rear cross braces (6), a rope winding machine support plate (8) is connected to the top of the horizontal brace (7), a hydraulic automatic rope winding machine (9) is welded to the top of the rope winding machine support plate (8), a plurality of steel strands (12) are connected to the hydraulic automatic rope winding machine (9), the steel strands (12) pass through the fixed pulley (11), a Bailey brace (13) is connected between the steel strands (12) on both sides of the pier; The construction comprises the following steps: S1. Weld supporting corbels (3) to the steel pipe pile (2) on the completed pier, lay the cross beam (1) between the upper and lower supporting corbels (3), and fix the remaining structure on the cross beam (1) by bolts; S2. Lay the Bailey beam of the next span pier by hoisting machinery, erect the Bailey brace (13) and connect it with the steel strand (12) after laying, tighten the steel strand (12) by the hydraulic automatic rope winding machine (9), pull the Bailey brace (13) and support the Bailey beam; S3. Perform steel pipe pile hole drilling on the Bailey beam by pile driving machinery; S4. Lay the steel pipe pile (2) by hoisting machinery after the hole drilling is completed, and complete the construction of the span pier; S5. Disassemble the temporary support device of the previous span and lay it under the next steel pipe pile (2), repeat the above construction steps to construct the pier until the construction of all the piers is completed.

2. The construction method of a large-span high-drop water pier construction temporary support device according to claim 1, characterized in that, The cross beam (1) and the inclined brace (4) are connected by a foot brace (5), and the foot brace (5) and the cross beam (1) are connected by bolts.

3. The construction method of a large-span high-drop water pier construction temporary support device according to claim 2, characterized in that, The supporting corbel (3) and the steel pipe pile (2) are welded.

4. The construction method of a large-span high-drop water overbridge construction temporary support device according to claim 3, characterized in that, The rope winding machine support plate (8) and the cross brace (6) are welded.

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