Auxiliary hoisting device suitable for crossing building machine bailey truss obstacle

Abstract

The utility model relates to the technical field of building construction, and provides an auxiliary hoisting device suitable for crossing building machine bailey truss obstacles, which comprises an upper cantilever arm, a lower cantilever arm, a spacing arm, an upper lifting lug and a lower lifting lug, the upper end of the spacing arm is connected with the upper cantilever arm, and the lower end of the spacing arm is connected with the lower cantilever arm; the upper cantilever arm is arranged above the lower cantilever arm; the upper lifting lug is connected to the upper cantilever arm, and the lower lifting lug is connected to the lower part of the lower cantilever arm; and the length of the spacing arm is greater than the height of the bailey truss. By measuring the height of the bailey truss of the building machine and the vertical distance between a stiff steel rib column at the lower part of the building machine and the edge of the bailey truss, the interval and depth length of the C-shaped auxiliary hoisting device are accurately designed, so that the stiff steel rib at the lower part of the bailey truss is vertically hoisted in place, and the hoisting stability of a component is effectively ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to an auxiliary hoisting device suitable for crossing the obstacle of the Bailey truss of a building construction machine. Background Art

[0002] At present, the domestic super high-rise construction technology has been relatively mature, and the successful application of the "aerial building construction machine" and its supporting construction technology, a great power equipment, has further elevated the super high-rise construction technology to a new level. The "aerial building construction machine" and its supporting construction technology are essentially an integrated lifting operation platform, and its upper Bailey truss is arranged vertically and horizontally. Since the current super high-rise structure is basically a steel-concrete composite structure system, during its operation process, it is inevitable to form a spatial cross-operation with the installation operation of the internal stiffening steel in the concrete. For the stiffening steel structure under the Bailey truss, if the conventional vertical lifting and lowering hoisting method is used for installation, the hoisting situation of "skew pulling and slanting hoisting" cannot be avoided, which greatly increases the construction difficulty, further affects the stability during the hoisting of steel components, and cannot guarantee the construction safety. Content of the Utility Model

[0003] In view of the above problems in the prior art, the present application proposes an auxiliary hoisting device suitable for crossing the obstacle of the Bailey truss of a building construction machine, which solves the problem of hoisting steel components across the obstacle of the Bailey truss in super high-rise construction.

[0004] The utility model proposes an auxiliary hoisting device suitable for crossing the obstacle of the Bailey truss of a building construction machine, including an upper cantilever, a lower cantilever, a bay arm, an upper lifting lug and a lower lifting lug; the upper end of the bay arm is connected with the upper cantilever, and the lower end of the bay arm is connected with the lower cantilever; the upper cantilever is arranged above the lower cantilever; the upper cantilever is connected with the upper lifting lug, and the lower cantilever is connected with the lower lifting lug; the length of the bay arm is greater than the height of the Bailey truss.

[0005] Further, the upper cantilever, the lower cantilever and the bay arm are all I-beams.

[0006] Further, stiffening plates are respectively arranged on both sides of the upper cantilever, the lower cantilever and the bay arm.

[0007] Further, stiffening tensile triangular plates are respectively arranged at the connecting inner angles between the bay arm and the upper cantilever and between the bay arm and the lower cantilever.

[0008] Further, two upper lifting lugs are arranged on the upper cantilever; one lower lifting lug is arranged on the lower cantilever.

[0009] Further, the two upper lifting lugs are symmetrically arranged at intervals at the top of the upper cantilever; the lower lifting lug is at the same distance from the two upper lifting lugs.

[0010] Further, the bay arms are welded to the upper and lower cantilever arms with bevel grooves.

[0011] Further, the upper hanging ears are welded to the upper cantilever arms with bevel grooves, and the lower hanging ears are welded to the lower cantilever arms with bevel grooves.

[0012] The beneficial effects of the present utility model are as follows: By measuring the height of the Bailey truss of the building construction machine and the vertical distance between the lower stiffening steel columns and the edge of the Bailey truss, the bay and depth lengths of the "C"-shaped auxiliary lifting device are accurately designed, so as to realize the vertical positioning of the lower stiffening steel columns of the Bailey truss, effectively ensuring the stability of component lifting. The auxiliary lifting device of the present utility model can realize the vertical positioning of steel components through simple vertical lifting and horizontal translation operation steps, with simple operation, convenient construction, greatly improving the component installation efficiency, thus achieving the purpose of saving the construction period. The materials used in the auxiliary lifting device are all common hot-rolled steel sections, with convenient material procurement, low cost, simple fabrication, convenient installation, high reusability, and good economic benefits. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the auxiliary lifting device of the present utility model applicable to crossing the obstacle of the Bailey truss of the building construction machine.

[0014] Figure 2 is Figure 1 a top view schematic diagram of

[0015] In the figure, 1 - upper cantilever arm; 2 - upper hanging ear; 3 - stiffening tensile triangular plate; 4 - bay arm; 5 - stiffening plate; 6 - lower cantilever arm; 7 - lower hanging ear. Specific Embodiments

[0016] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0017] As Figure 1 - Figure 2 shown, the auxiliary lifting device applicable to crossing the obstacle of the Bailey truss of the building construction machine includes an upper cantilever arm 1, a lower cantilever arm 6, a bay arm 4, a stiffening plate 5, a stiffening tensile triangular plate 3, an upper hanging ear 2, and a lower hanging ear 7. The bay arm 4 and the upper and lower cantilever arms 1 and 6 at its two ends are welded with bevel grooves to form a "C"-shaped lifting tool. Multiple stiffening plates 5 are welded at intervals along the length directions of the upper cantilever arm 1, the lower cantilever arm 6, and the bay arm 4. The density of the stiffening plates 5 provided on the upper cantilever arm 1 and the lower cantilever arm 6 is greater than the density of the stiffening plates 5 provided on the bay arm 4. A stiffening tensile triangular plate 3 is welded at the connection of the bay arm 4 and the upper and lower cantilever arms 1 and 6 at its two ends, and the stiffening tensile triangular plate 3 is a double-layer structure. Two upper hanging ears 2 are welded symmetrically at intervals on the top of the upper cantilever arm 1, and a lower hanging ear 7 is welded at the center of the bottom of the lower cantilever arm 6.

[0018] By measuring the height of the Bailey truss of the building construction machine and the vertical distance between the lower stiffened steel column and the edge of the Bailey truss, the bay and depth lengths of the "C"-type lifting tool are accurately designed, so as to achieve the vertical positioning of the lower stiffened steel column of the Bailey truss and effectively ensure the stability of the component hoisting. Among them, the lengths of the upper lifting arm 1 and the lower lifting arm 6 are set according to the actual vertical depth of the Bailey truss affecting the steel column, and the length of the bay arm 4 is designed according to the actual height of the Bailey truss, so as to achieve the vertical positioning of the steel column.

[0019] Combined with the weight of the hoisted component and the mechanical properties of the steel used in the lifting tool, finite element member modeling analysis is carried out through Tekla structure software, the profiles of the auxiliary hoisting device are reasonably selected, the stiffening plate 5 is accurately arranged, and the specifications and positions of the upper lifting ear 2 and the lower lifting ear 7 are accurately set, thus ensuring the safety during the use of the lifting tool. After the auxiliary hoisting device (i.e., the lifting tool) is manufactured, it is necessary to pass through strict flaw detection procedures to ensure that the manufacturing of the lifting tool meets the design requirements. After passing the flaw detection inspection and passing the acceptance, it can be put into use.

[0020] During operation, first connect the tower crane hook with the upper lifting ear 2 of the auxiliary hoisting device, and then use the lower lifting ear 7 of the auxiliary hoisting device to hoist the stiffened steel column. The steel column needs to be turned over and lifted vertically slowly.

[0021] After hoisting the steel column to the vicinity of the designated position, the whole lifting tool and the steel column slowly fall vertically from the longitudinal and transverse Bailey truss openings at the top of the "building construction machine". When it falls to a parallel height of 100 mm from the butt joint of the steel column, the fall is suspended, and the whole is changed to parallel movement.

[0022] During the parallel movement of the lifting tool, the Bailey truss passes through the bay of the lifting tool. When the hoisted steel column moves to directly above the butt joint steel column, the translation stops.

[0023] Subsequently, the whole lifting tool and the steel column are short-distance lowered to the designated elevation, the steel column is in place, and then temporary fixing is carried out, and the installation of the steel column is completed.

[0024] The above is only the preferred implementation mode of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as the protection scope of the present utility model.

Claims

1. An auxiliary hoisting device applicable to crossing the obstacle of the Bailey truss of a building construction machine, characterized in that It includes an upper lifting arm, a lower lifting arm, a bay arm, an upper hanging ear and a lower hanging ear; the upper end of the bay arm is connected to the upper lifting arm, and the lower end of the bay arm is connected to the lower lifting arm; the upper lifting arm is arranged above the lower lifting arm; the upper hanging ear is connected to the upper lifting arm, and the lower hanging ear is connected to the lower lifting arm; the length of the bay arm is greater than the height of the Bailey truss.

2. The auxiliary hoisting device applicable to crossing the obstacle of the Bailey truss of the building construction machine according to claim 1, wherein The upper lifting arm, the lower lifting arm and the bay arm are all I-beams.

3. The auxiliary hoisting device applicable to crossing the obstacle of the Bailey truss of the building construction machine according to claim 2, characterized in that, Stiffening plates are respectively arranged on both sides of the upper lifting arm, the lower lifting arm and the bay arm.

4. An auxiliary lifting device applicable to crossing the obstacle of the Bailey truss of a building construction machine according to claim 1, characterized in that, Stiffening tensile triangular plates are respectively arranged at the connecting inner angles between the bay arm and the upper lifting arm and between the bay arm and the lower lifting arm.

5. An auxiliary hoisting device applicable to crossing the obstacle of the Bailey truss of a building construction machine according to claim 1, characterized in that, Two upper hanging ears are arranged on the upper lifting arm; one lower hanging ear is arranged on the lower lifting arm.

6. An auxiliary hoisting device applicable to crossing the obstacle of the Bailey truss of a building construction machine according to claim 5, characterized in that, The two upper hanging ears are symmetrically arranged at intervals on the top of the upper lifting arm; the lower hanging ear is at the same distance from the two upper hanging ears.

7. An auxiliary hoisting device applicable to crossing the obstacle of the Bailey truss of a building construction machine according to claim 1, characterized in that The bay arm is welded with an open groove to the upper lifting arm and the lower lifting arm.

8. An auxiliary hoisting device applicable to crossing the obstacle of the Bailey truss of a building construction machine according to claim 1, characterized in that, The upper hanging ear is welded with an open groove to the upper lifting arm, and the lower hanging ear is welded with an open groove to the lower lifting arm.

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