High-altitude installation sliding device for prestressed reinforced concrete arch slab roof

Abstract

The utility model relates to the technical field of building assembly equipment, in particular to a sliding device for high-altitude installation of a prestressed reinforced concrete arch slab roof. The arch bar forming device comprises an arch bar forming area arranged on one side of the top of a wall body, a sliding vehicle frame arranged on the top of the wall body and used for supporting and transferring arch bars, and a traction mechanism used for adjusting the sliding vehicle frame to move. Wherein the arch slab forming area comprises a widening structure arranged at the top of the wall body; the widening structure is provided with a plurality of lifting mechanisms used for jacking the arch plates. The device is simple in design structure and convenient to manufacture, the construction period is shortened, and the engineering cost is reduced. The prestressed reinforced concrete arch slab roof can be installed in place at a time. The device is simple in structure, convenient to manufacture, reusable, convenient and flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to building assembly equipment technical field especially relates to a prestressed reinforced concrete arch plate roof cover high altitude installation sliding device. BACKGROUND

[0002] In the prestressed reinforced concrete arch plate construction, the arch plate is as roof structure, because arch plate span is big (reaches 24.48m), thickness is thin (only 4cm), construction site is narrow, on-site production is difficult, in the processing factory production transportation process is easy to be damaged. If on-site installation adopts crane installation, cannot guarantee the accuracy of position, simultaneously because arch plate span is big, adopts crane installation and will be due to uneven stress, cause prestressed arch plate cracking even is broken, thereby seriously influence the integrity of structure. Therefore, on-site needs to adopt high altitude prefabrication sliding construction technology, when arch plate is completed in high altitude prefabrication, through device slides to the designated position and completes installation. So need to develop a kind of prestressed reinforced concrete arch plate roof cover high altitude installation sliding device, and the operation is convenient, construction efficiency is high and the working reliability is stronger. SUMMARY

[0003] The utility model aims at providing a kind of prestressed reinforced concrete arch plate roof cover high altitude installation sliding device, solve the problem of how to improve construction efficiency and ensure the accurate installation of prestressed arch plate when conventional prestressed reinforced concrete arch plate roof cover is installed.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model provides a kind of prestressed reinforced concrete arch plate roof cover high altitude installation sliding device, it includes the arch plate forming area being arranged in the one side of wall top, the sliding frame being arranged in the wall top and respectively supporting transfer arch plate, and the traction mechanism of adjusting the sliding frame and moving;

[0006] Wherein the arch plate forming area includes the widening structure being arranged in the wall top;The widening structure is provided with a plurality of lifting mechanisms for jacking the arch plate.

[0007] Further in the embodiment, the wall top is provided with ring beam, and the widening structure is ring beam widening structure arranged on one side or both sides of the ring beam.

[0008] Still further in the embodiment, a plurality of assembly grooves are arranged on the ring beam widening structure, and a lifting mechanism for jacking the arch plate is arranged in the assembly groove.

[0009] The lifting mechanism is one of hydraulic lifting mechanism, screw lifting mechanism or scissor type lifting machine.

[0010] Further in this embodiment, a material stacking area a is arranged on one side of the arch plate forming area.

[0011] Further in this embodiment, a steel plate is arranged on the top of the ring beam.

[0012] Further in this embodiment, the sliding frame is arranged on the steel plate, a plurality of supporting rollers adapted to the steel plate are arranged on the bottom of the sliding frame, and a baffle adapted to the width of the steel plate is arranged on both ends of the supporting rollers.

[0013] Further in this embodiment, the traction mechanism is connected with the sliding frame or the arch plate through a steel rope, and the traction mechanism is a winch.

[0014] Compared with the prior art, the utility model has the beneficial technical effects that:

[0015] The utility model discloses simple structure, convenient production, shorten the period of construction, reduce the project cost, can realize that the prestressed reinforced concrete arch plate roof cover is installed once in position. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in connection with the drawings.

[0017] Figure 1 It is the overhead installation sliding device's plan view structural diagram for prestressed reinforced concrete arch plate roof cover of the utility model;

[0018] Figure 2 It is the use side view schematic diagram for prestressed reinforced concrete arch plate roof cover overhead installation sliding device of the utility model;

[0019] Figure 3 It is the support section schematic diagram for prestressed reinforced concrete arch plate roof cover overhead installation sliding device of the utility model.

[0020] Mark explanation: 1, ring beam;2, ring beam widening structure;21, assembly groove;3, steel plate;4, sliding frame;41, supporting roller;5, arch plate;6, traction mechanism;61, steel rope;a, material stacking area;B, arch plate forming area. DETAILED DESCRIPTION

[0021] Reference Figure 1 and Figure 2The prestressed reinforced concrete arch plate roof cover high-altitude installation sliding device disclosed in the embodiment comprises an arch plate forming area b located at one side of the top of a wall, a sliding frame 4 installed on the top of the wall and supporting the transferred arch plate 5 respectively, and a traction mechanism 6 for adjusting the movement of the sliding frame 4; wherein the arch plate forming area b comprises a widened structure installed on the top of the wall; a plurality of lifting mechanisms for jacking up the arch plate 5 are installed on the widened structure.

[0022] Wherein after the prestressed reinforced concrete arch plate roof cover design pouring is completed in the arch plate forming area b, the arch plate 5 is jacked up by the lifting mechanism at the widened structure to achieve a gap with the top of the wall to accommodate the position of the sliding frame 4 transferred to the wall.

[0023] Referring to Figure 2 and Figure 3 , a ring beam 1 is poured on the top of the wall, and the widened structure is a ring beam widened structure 2 added to one side or both sides of the ring beam 1; wherein the widened structure can be integrally poured with the ring beam 1 or a designed steel skeleton support structure.

[0024] Referring to Figure 1 , a plurality of assembly grooves 21 are provided on the ring beam widened structure 2, and a lifting mechanism for jacking up the arch plate 5 is installed in the assembly groove 21; specifically, the lifting mechanism can be any one of a hydraulic lifting mechanism, a screw lifting mechanism or a scissor lifting mechanism; specifically according to the bearing requirement.

[0025] In the embodiment, a material stacking area a is designed on one side of the arch plate forming area b for pouring and forming by a support structure in the arch plate forming area b.

[0026] Referring to Figure 1 and Figure 2 , a steel plate 3 is laid on the top of the ring beam 1.

[0027] The sliding frame 4 is installed on the steel plate 3 in position, a plurality of support rollers 41 adapted to the steel plate 3 are installed on the bottom of the sliding frame 4 through a bearing seat, and a stop edge adapted to the width of the steel plate 3 is integrally designed on both ends of the support roller 41 to prevent the sliding frame 4 from overturning.

[0028] In the embodiment, the traction mechanism 6 is connected with the sliding frame 4 or the arch plate 5 through a steel rope 61, and the traction mechanism 6 is a winch.

[0029] In use, two jacks are symmetrically placed on both sides to simultaneously jack the prestressed arch plate to a certain height, and a sliding device is symmetrically arranged below the arch plate; the bottom of the sliding device is provided with a 10mm thick steel plate 3; the steel plate 3 is symmetrically arranged at the bottom of the two sides of the sliding device; 20mm round steel pull rings are pre-buried at the two sides of the gable end of the sliding direction; winches are installed at the two sides; 12mm steel wire ropes 61 are bound at the two sides of the arch plate to connect the arch plate 5 and the two side winches; the arch plate 5 is connected with the two side winches, and the arch plate 5 is pulled to be longitudinally slid along the top steel plate of the ring beam 3 to be in place;

[0030] The sliding device is welded by L75x8 angle steel, and the specification size is 1.2m x 0.72m x 0.1m (length x width x height); two cylindrical rollers with a diameter of Φ50 are installed at the lower part of the sliding device for walking; the rollers are connected with the upper frame through bearings to form an integral body.

[0031] The steel plate 3 is arranged above the sliding path of the ring beam 1 to the installation position of the arch plate 5, the plane of the steel plate 3 is tightly attached to the concrete of the ring beam 1, and no steel plate is laid in the installation position range of the arch plate 5. The sliding device for loading the arch plate is provided, the sliding device is arranged on the steel plate 3, and the winch for pulling the arch plate is installed at the distal gable end of the sliding path, so that the winch pulls the arch plate 5 to slide along the surface of the ring beam 1 in the longitudinal direction, reaches the installation position of the arch plate 5, and completes the horizontal position movement of the arch plate 5 to be in place. The four jacks simultaneously jack up the two ends of the arch plate 5 at the two sides, the sliding device is taken out, the arch plate 5 is lowered to be in place, and the installation of the arch plate 5 is completed.

[0032] In the embodiment, a support scaffold (15x24m) is built as a bottom mold and a manufacturing platform for manufacturing the pre-tensioned prestressed concrete arch plate, and the cast-in-place ring beam is used as a tensioning end and an anchoring end of the prestressed arch plate. The steel reinforcement of the lower chord plate of the prestressed arch plate is pre-tensioned and then cast in place with the partition plate and the upper chord arch plate. After the concrete strength of each truss of the formed prestressed arch plate reaches 100% of the design strength, the tensioning is released, and the arch plate is installed in place one by one to form a roof.

[0033] In order to tension the prestressed tendon of the arch plate, ensure that the 9.0m high ring beam does not damage and displace during tensioning and releasing, and ensure that the bearing plate does not displace and overturn during tensioning, the following measures are taken to reform and reinforce the tensioning (anchoring) end ring beam to enhance the bending shear torsion resistance of the ring beam.

[0034] The width of the 9.0m high ring beam in the arch plate manufacturing area is widened (from 240mm to 400mm), and the first grade concrete is increased from C35 concrete (240x240mm air slot is reserved at the same time for jacking up the arch plate) as the tensioning pedestal for pre-tensioning construction, so that the prestressed concrete arch plate is directly manufactured in the high space. After the arch plate concrete reaches the design strength, the arch plate is moved and installed by using the jacks, the sliding device and the winch.

[0035] In order to prevent the corner of the segmental beam from being crushed when the prestressed tendon is tensioned, an equilateral angle steel of ∠50*5 is embedded in the outer corner.

[0036] The above embodiments only describe the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A prestressed reinforced concrete arch plate roof high altitude installation sliding device, characterized in that: It includes an arch forming area (b) arranged on one side of the top of the wall, a sliding frame (4) arranged on the top of the wall and supporting the transfer arch (5) respectively, and a traction mechanism (6) for adjusting the movement of the sliding frame (4); Wherein the arch forming area (b) includes a widened structure arranged on the top of the wall; a plurality of lifting mechanisms for jacking up the arch (5) are arranged on the widened structure.

2. The prestressed reinforced concrete arched slab roof high-altitude installation sliding device according to claim 1, characterized in that: The top of the wall is provided with a ring beam (1), and the widened structure is a ring beam widened structure (2) arranged on one side or both sides of the ring beam (1).

3. The prestressed reinforced concrete arched roof deck high altitude installation sliding device according to claim 2, characterized in that: A plurality of assembly grooves (21) are arranged on the ring beam widened structure (2), and a lifting mechanism for jacking up the arch (5) is arranged in the assembly groove (21). The lifting mechanism is one of hydraulic lifting mechanism, screw lifting mechanism or scissor lifting mechanism.

4. The prestressed reinforced concrete arched roof deck high altitude installation sliding device according to claim 3, characterized in that: A material stacking area (a) is further arranged on one side of the arch forming area (b).

5. The prestressed reinforced concrete arched roof deck high altitude installation sliding device according to claim 3, characterized in that: A steel plate 3 is laid on the top of the ring beam (1).

6. The prestressed reinforced concrete arched roof deck high altitude installation sliding device according to claim 1, characterized in that: The sliding frame (4) is arranged on the steel plate 3, a plurality of supporting rollers (41) adapted to the steel plate 3 are arranged at the bottom of the sliding frame (4), and a stop edge adapted to the width of the steel plate 3 is arranged at both ends of the supporting roller (41).

7. The prestressed reinforced concrete arched roof deck high altitude installation sliding device according to claim 6, characterized in that: The traction mechanism (6) is connected with the sliding frame (4) or the arch (5) through a steel rope (61), and the traction mechanism (6) is a winch.

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