阅读说明：本技术 一种超高层建筑连桥底部悬挂轨道系统施工方法 (Construction method of suspension track system at bottom of connecting bridge of super high-rise building ) 是由 张萍 任志平 侯春明 张兴志 杜福祥 戴超 武雄飞 赵云鹏 马靖华 刘旭冉 赵长 于 2019-09-28 设计创作，主要内容包括：本发明公开一种超高层建筑连桥底部悬挂轨道系统施工方法,包括从场地准备、施工器械准备以及人员准备,直至在连桥底部完成整个悬挂轨道系统的安装的各个详尽的施工步骤,并针对各个施工步骤详尽的展开了说明,以及对每个施工步骤应注意的事项也进行了详尽的说明。该施工方法步骤详尽、实施简单,可复制性较强,尤其针对于高空操作这种特殊的作业环境,经实践证明安全可靠。(The invention discloses a construction method of a suspension track system at the bottom of a bridge of a super high-rise building, which comprises detailed construction steps from site preparation, construction equipment preparation and personnel preparation to the installation of the whole suspension track system at the bottom of the bridge, and the detailed description is developed aiming at the construction steps, and the detailed description is also carried out on the matters which should be noticed in each construction step. The construction method has the advantages of detailed steps, simple implementation and strong reproducibility, and is particularly safe and reliable for the special working environment of overhead operation.)

1. A construction method of a suspension track system at the bottom of a connecting bridge of a super high-rise building is characterized by comprising the following steps: the method comprises the following construction steps:

s1, site arrangement and construction preparation:

s1a, site layout: cleaning an apron building roof below the connecting bridge (1) or erecting an operation platform below the connecting bridge (1), and using the apron building roof or the operation platform as a construction site below the connecting bridge (1);

s1b, transporting the electric hanging baskets (6) to a construction site below the connecting bridge (1) according to construction requirements, wherein each electric hanging basket (6) is provided with a manually operated or electrically operated hoist (8); every two electric hanging baskets (6) are divided into a group, and at least one group of electric hanging baskets (6) is needed when one track beam (4) is installed; according to design requirements, transporting track beams (4) required by a suspension track system to a connecting bridge (1); the rail supporting seat (3) required by the suspended rail system is transported to a construction site below the connecting bridge (1) along with the electric hanging basket (6);

s2, opening a hole in the connecting bridge (1): according to a designed suspension track system plane layout diagram, a plurality of hoisting holes (11) for a track beam (4) to penetrate through vertically and a plurality of circular holes (12) for a steel wire rope to penetrate through vertically are formed in the bridge deck of the connecting bridge (1); each hoisting hole (11) is correspondingly provided with two circular holes (12), and the two corresponding circular holes (12) are respectively positioned at the left side and the right side of the hoisting hole (11);

s3, lifting the electric basket (6) for preparation: one end of a lifting steel wire rope for lifting the electric hanging basket (6) is fixedly locked at the upper part of the connecting bridge (1), and the other end of the lifting steel wire rope penetrates through the circular hole (12) from top to bottom and then is connected with the electric hanging basket (6), so that the electric hanging basket (6) is in a lifting state; a lifting steel wire rope is arranged in each circular hole (12), and each lifting steel wire rope is correspondingly used for lifting one electric hanging basket (6); when the track beam (4) is formally installed, at least one operator is ensured in each hanging basket for installing the track beam (4);

when the electric hanging basket (6) is lifted, the weather is measured, the wind speed is less than or equal to 14m/s and the wind pressure is less than or equal to 125Pa in the lifting stage of the electric hanging basket (6), otherwise, the lifting work of the electric hanging basket (6) is stopped;

s4: installing a suspension track system;

s4a, construction and installation of the rail supporting seat (3): the track supporting seat (3) is lifted upwards to the bottom of the connecting bridge (1) by using an electric hanging basket (6), and the track supporting seat (3) is sequentially and temporarily fixedly connected to the bottom of the connecting bridge (1) according to a design drawing;

s4b, construction and installation of the single track beam (4): firstly, simulating and trial hoisting of the track beam (4), and then carrying out formal hoisting of the track beam (4) after the simulated and trial hoisting meets the requirements; if the requirements are not met, the simulation is continuously adjusted until the construction requirements of the track beam (4) are met;

the hoisting process of the single track beam (4) is as follows: after the simulated trial crane meets the requirement, a hoist (8) is fixedly installed on the upper part of the connecting bridge (1), a single track beam (4) is fixedly connected with the hoist (8) installed on the upper part of the connecting bridge (1) → a worker standing on the connecting bridge (1) pulls the hoist (8) on the upper part of the connecting bridge (1), the track beam (4) is vertically lifted by the hoist (8), the axis of the track beam (4) is vertically vertical to the hoisting hole (11), meanwhile, the lower end of the track beam (4) is aligned to the center of the hoisting hole (11) → the worker on the connecting bridge (1) continues to operate the hoist (8), the track beam (4) is continuously and slowly lowered until the lower end of the track beam (4) penetrates through the hoisting hole (11) → after the lower end of the track beam (4) penetrates through the hoisting hole (11), the worker is positioned in an electric hanging basket (6) on the left side below the track beam (4), connecting a hoist (8) in the left electric hanging basket (6) to the lower end of the track beam (4) → a worker on the connecting bridge (1) continuously and slowly lowering the track beam (4), after the middle of the track beam (4) downwards passes through the hoisting hole (11) → the middle of the track beam (4) downwards passes through the hoisting hole (11), the worker in the right electric hanging basket (6) below the track beam (4), connecting the hoist (8) in the right electric hanging basket (6) to a position above the middle of the track beam (4) → the worker standing on the connecting bridge (1) continuously operates the hoist (8) on the upper part of the connecting bridge (1) until the track beam (4) is completely separated from the hoisting hole (11), and simultaneously separating the hoist (8) on the upper part of the connecting bridge (1) from the track beam (4);

the workers of the left electric hanging basket (6) and the right electric hanging basket (6) continue to operate the respective hoists (8) and slowly pull the track beam (4) to the middle position of the two electric hanging baskets (6); workers in the left electric hanging basket (6) and workers in the right electric hanging basket (6) respectively pull the track beam (4) by pulling the hoists (8) on the electric hanging baskets (6) respectively, and enable the track beam (4) to be in an axis horizontal state and be maintained; continuously operating the left electric hanging basket (6) and the right electric hanging basket (6) to lift upwards together until the track beam (4) and the track supporting seat (3) are positioned and attached, and inspecting the installation position of the track beam (4); the mounting positions and levelness of the track beam (4) and the track supporting seat (3) meet the construction requirements and are checked to be qualified, then the permanent fixed connection between the track supporting seat (3) and the connecting bridge (1) is completed, and meanwhile, the permanent fixed connection between the track beam (4) and the track supporting seat (3) is completed;

and S4c, repeating the construction installation steps of S4a and S4b until the installation of the whole rail suspension system is completed.

2. The construction method of the bottom suspension track system of the ultra-high-rise building bridge according to claim 1, characterized in that: the steps S3 and S4 comprise that wind-pulling ropes (5) are arranged on two floors of a super high-rise building at two sides adjacent to the electric hanging basket (6) in the lifting stage of the electric hanging basket (6), and the wind-pulling ropes (5) are utilized to ensure that the electric hanging basket (6) cannot sway left and right by a large margin when lifted and landed.

3. The method for constructing the bottom suspension track system of the bridge of the super high-rise building according to claim 1 or 2, wherein: the construction step S4 comprises the steps that when the electric hanging baskets (6) rise to the top position and stop, a connecting rod is additionally arranged between every two adjacent electric hanging baskets (6), and the two electric hanging baskets (6) are fixedly connected into a whole by the connecting rod.

4. The construction method of the bottom suspension track system of the ultra-high-rise building bridge according to claim 3, characterized in that: in the construction steps S1-S4, a steel beam (2) is additionally arranged between the connecting bridge (1) and the electric hanging basket (6), the steel beam (2) is fixedly connected to the connecting bridge (1), a steel wire rope hanging lug (7) is fixedly connected to the steel beam (2), and the center of an ear hole of the steel wire rope hanging lug (7) is opposite to the hollow upper part and the lower part of the circular hole (12).

Technical Field

The invention belongs to the technical field of super high-rise building construction, and particularly relates to a construction method of a suspension track system at the bottom of a bridge of a super high-rise building.

Background

Two adjacent super high-rise buildings are connected through a connecting bridge, so that the rapid traffic conversion between the two super high-rise buildings can be realized, and great convenience is brought to the life and work of people. However, the existing super high-rise building mostly adopts a glass curtain wall as an external enclosure structure, and the glass curtain wall positioned below the connecting bridge cannot be cleaned and enclosed daily by directly using a window cleaning machine from the roof due to the existence of the connecting bridge.

If the glass curtain wall below the connecting bridge is required to be cleaned, a window cleaning machine is required to be installed below the connecting bridge; if the window cleaning machine is installed below the connecting bridge, a rail supporting seat is needed to be installed at the bottom of the connecting bridge, a rail beam is fixedly installed by the rail supporting seat, and a suspension rail system required by the window cleaning machine for supporting and walking is formed by a plurality of rail beams. However, in the prior art, a good construction solution is not provided for installing a suspension track system on a high-altitude connecting bridge.

Disclosure of Invention

The invention aims to provide a construction method of a suspension rail system at the bottom of a connecting bridge of a super high-rise building, which can be used for installing the suspension rail system at the bottom of the connecting bridge and further realizing the installation of a window cleaner so as to be capable of cleaning a glass curtain wall below the connecting bridge by using the window cleaner.

The technical scheme of the invention is as follows: a construction method of a suspension track system at the bottom of a connecting bridge of a super high-rise building comprises the following construction steps:

s1, site arrangement and construction preparation:

s1a, site layout: cleaning the skirt building roof below the connecting bridge or erecting an operation platform below the connecting bridge, and using the skirt building roof or the operation platform as a construction site below the connecting bridge;

s1b, transporting the electric hanging baskets to a construction site below the connecting bridge according to construction requirements, wherein each electric hanging basket is provided with a manually operated or electrically operated hoist; every two electric hanging baskets are divided into a group, and at least one group of electric hanging baskets is needed when one rail beam is installed; according to design requirements, transporting track beams required by a suspension track system to a connecting bridge; transporting the rail supporting seat required by the suspension rail system to a construction site below the connecting bridge along with the electric hanging basket;

s2, bridging open pore: according to a designed suspension track system plane layout diagram, a bridge deck of a connecting bridge is provided with a plurality of hoisting holes for a track beam to penetrate through up and down and a plurality of circular holes for a steel wire rope to penetrate through up and down; each lifting hole is correspondingly provided with two circular holes, and the two corresponding circular holes are respectively positioned at the left side and the right side of the lifting hole;

s3, electric basket lifting preparation: one end of a lifting steel wire rope for lifting the electric hanging basket is fixedly locked at the upper part of the connecting bridge, and the other end of the lifting steel wire rope penetrates through the circular hole from top to bottom and then is connected with the electric hanging basket, so that the electric hanging basket is in a lifting state; a lifting steel wire rope is arranged in each circular hole, and each lifting steel wire rope is correspondingly used for lifting one electric hanging basket; when the track beam is formally installed, at least one operator is ensured in each hanging basket for installing the track beam;

when the electric hanging basket is lifted, the weather is measured, the wind speed is ensured to be less than or equal to 14m/s and the wind pressure is ensured to be less than or equal to 125Pa in the lifting stage of the electric hanging basket, otherwise, the lifting work of the electric hanging basket is stopped;

s4: installing a suspension track system;

s4a, construction and installation of the rail supporting seat: lifting the track supporting seat upwards to the bottom of the connecting bridge by using an electric hanging basket, and temporarily and sequentially connecting the track supporting seat to the bottom of the connecting bridge according to a design drawing;

s4b, construction and installation of a single track beam: firstly, simulating and trial hoisting of the track beam, and then carrying out formal track beam hoisting after ensuring that the simulated and trial hoisting meets the requirements; if the requirements are not met, continuing to adjust the simulation until the construction requirements of the track beam are met;

hoisting process of a single track beam: after the simulated trial crane meets the requirement, fixedly installing a hoist on the upper part of the connecting bridge, fixedly connecting a single track beam with the hoist installed on the upper part of the connecting bridge → pulling the hoist on the upper part of the connecting bridge by a worker standing on the connecting bridge, vertically hoisting the track beam by using the hoist, enabling the axis of the track beam to be vertical to the hoisting hole, aligning the lower end of the track beam to the center of the hoisting hole → continuously operating the hoist on the connecting bridge, continuously and slowly placing the track beam downwards until the lower end of the track beam penetrates through the hoisting hole → after the lower end of the track beam penetrates through the hoisting hole, connecting the hoist in the left electric hanging basket to the lower end of the track beam, continuously and slowly placing the track beam downwards until the middle part of the track beam penetrates through the hoisting hole → the middle part of the track beam penetrates through the hoisting hole downwards, a worker in the right electric hanging basket below the track beam connects the hoist in the right electric hanging basket to a position above the middle part of the track beam → the worker standing on the connecting bridge continues to operate the hoist at the upper part of the connecting bridge until the track beam is completely separated from the hoisting hole, and simultaneously separates the hoist at the upper part of the connecting bridge from the track beam;

the workers of the left electric hanging basket and the right electric hanging basket continue to operate the respective hoists, and the rail beam is slowly pulled to the middle position of the two electric hanging baskets; workers in the left electric hanging basket and workers in the right electric hanging basket respectively pull the track beam by pulling the hoists on the electric hanging baskets, and the track beam is in an axis horizontal state and is maintained; continuously operating the left electric hanging basket and the right electric hanging basket to lift upwards together until the track beam and the track supporting seat are positioned and attached, and inspecting the installation position of the track beam; after the installation positions and levelness of the track beam and the track supporting seat meet the construction requirements and are qualified through inspection, permanent fixed connection between the track supporting seat and the connecting bridge is completed, and meanwhile, permanent fixed connection between the track beam and the track supporting seat is completed;

and S4c, repeating the construction installation steps of S4a and S4b until the installation of the whole rail suspension system is completed.

Further: the steps S3 and S4 comprise that wind-pulling ropes are arranged on two floors of the super high-rise building adjacent to the two sides of the electric hanging basket in the lifting stage of the electric hanging basket, and the wind-pulling ropes are utilized to ensure that the electric hanging basket cannot sway left and right by a large margin when lifted and landed.

Further: the construction step S4 includes that when the electric baskets are lifted to the top position and stopped, a connecting rod is additionally disposed between two adjacent electric baskets, and the two electric baskets are fixedly connected into a whole by the connecting rod.

Further: in the construction steps S1-S4, a steel beam is additionally arranged between the connecting bridge and the electric hanging basket, the steel beam is fixedly connected to the connecting bridge, a steel wire rope hanging lug is fixedly connected to the steel beam, and the center of an ear hole of the steel wire rope hanging lug is vertically opposite to the hollow center of the circular hole.

The beneficial effect of this scheme: the invention provides a construction method of a suspension rail system at the bottom of a connecting bridge of a super high-rise building, which provides a construction step of installing the suspension rail system at the lower part of the connecting bridge between two high-rise buildings. The construction method has the advantages of detailed steps, simple implementation and strong reproducibility, and is particularly safe and reliable for the special working environment of overhead operation.

Meanwhile, the construction method provides another idea for cleaning the curtain wall below the connecting bridge, and a rail system is hung at the bottom of the connecting bridge to facilitate the installation of a window cleaner, so that the curtain wall below the connecting bridge can be cleaned. The method is special in use environment, so that the method also belongs to an advanced construction technology in the industry at present, and can provide reference for other units in the industry.

Drawings

FIG. 1 is a schematic plane structure view of a connecting bridge of the present invention with a hoisting hole and a circular hole;

FIG. 2 is a schematic view of the installation structure of the track support base and the track beam according to the present invention;

fig. 3 is a schematic structural diagram of the vertical hoisting of the track beam on the connecting bridge.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1, fig. 2 and fig. 3, the invention discloses a construction method of a suspension rail system at the bottom of a bridge of a super high-rise building, which mainly aims to install the suspension rail system at the bottom of the bridge 1. The connecting bridge 1 is positioned between the tops of the two super high-rise buildings, and the connecting bridge 1 is also the only passage for the two super high-rise buildings to be communicated at high altitude.

In the scheme, the construction method for installing the suspension track system at the bottom of the connecting bridge 1 comprises the following construction steps:

s1, site arrangement and construction preparation:

s1a, site layout: when the skirt building roof below the connecting bridge 1 is used, the skirt building roof below the connecting bridge 1 needs to be cleaned up before the construction of the suspension track system is carried out, so that the skirt building roof can be used as a construction site; when the attic lighting well is arranged below the connecting bridge 1, an operation platform needs to be erected below the connecting bridge 1 before the construction of the suspended track system, and the operation platform is used as a construction site for the suspended track system;

s1b, the electric hanging baskets 6 are dispatched to a construction site below the connecting bridge 1 according to construction requirements, and every two electric hanging baskets 6 are divided into a group; according to design requirements, the track beams 4 required by the suspension track system are hoisted to the connecting bridge 1 by using a tower crane, and the track beams 4 are arranged in order for standby; and (3) transporting the rail supporting seat 3 required by the suspended rail system to a construction site below the connecting bridge 1 along with the electric hanging basket 6.

S2, opening a hole in the connecting bridge 1: according to a designed suspension track system plane layout diagram, a plurality of hoisting holes 11 for the track beam 4 to penetrate through and a plurality of circular holes 12 for the steel wire rope to penetrate through are formed in the bridge deck of the connecting bridge 1, the hoisting holes 11 are optimally selected to be rectangular holes of 250mm multiplied by 350mm, and the diameters of the circular holes 12 are optimally selected to be 200 mm; each hoisting hole 11 is provided with two corresponding circular holes 12, and the two corresponding circular holes 12 are respectively positioned at the left side and the right side of the hoisting hole 11;

s3, electric basket 6 lifting preparation: one end of a lifting steel wire rope for lifting the electric hanging basket 6 is locked at the upper part of the connecting bridge 1, and the other end of the lifting steel wire rope penetrates through the circular hole 12 from top to bottom and then is connected with the electric hanging basket 6, so that the electric hanging basket 6 is in a lifting state; a lifting steel wire rope is arranged in each circular hole 12, each lifting steel wire rope is correspondingly used for lifting one electric hanging basket 6, the lifting steel wire ropes are locked through lock catches, and one or more hoists 8 are arranged in each hanging basket at least; when the track beam 4 is formally installed, at least one operator is ensured in each basket for installing the track beam 4.

When the electric basket 6 is lifted, the weather is measured, the wind speed is ensured to be less than or equal to 14m/s and the wind pressure is ensured to be less than or equal to 125Pa in the lifting stage of the electric basket 6, otherwise, the lifting work of the electric basket 6 is stopped; in the lifting stage of the electric hanging basket 6, wind-holding ropes 5 are arranged on the floors of two super high-rise buildings at two sides adjacent to the electric hanging basket 6, and the wind-holding ropes 5 are utilized to ensure that the electric hanging basket 6 cannot swing left and right to a large extent when lifted and landed, so that the safety of lifting and landing of the electric hanging basket 6 is ensured; when the electric hanging basket 6 is used, the electric hanging basket needs to descend and stop on a construction site so as to be used continuously next time; when the electric hanging baskets 6 ascend to the top and stop, a connecting rod can be additionally arranged between two adjacent electric hanging baskets 6, and the two electric hanging baskets 6 are fixedly connected into a whole by utilizing the connecting rod, so that the integral stability of the electric hanging baskets 6 is enhanced.

S4: installing a suspension track system;

s4a, construction and installation of the rail supporting seat 3: the track supporting seat 3 is lifted upwards to the bottom of the connecting bridge 1 by using the electric hanging basket 6, and the track supporting seat 3 is sequentially and temporarily fixedly connected to the bottom of the connecting bridge 1 according to a design drawing, wherein the temporary fixed connection mode can adopt spot welding, steel bar binding or bolt connection and the like;

s4b, construction and installation of the single track beam 4: a hoist 8 is fixedly arranged at the upper part of the connecting bridge 1, the hoist 8 is used for hoisting the single track beam 4, and the lower end of the single track is driven to be aligned to a hoisting hole 11 by a worker in a mode of operating the hoist 8 and manually aligning; in order to ensure safety, a test crane is required to be simulated before the formal track is hoisted, and the formal track beam 4 can be hoisted after the requirement of rechecking of the simulated test crane is ensured;

the hoisting process of a single track beam 4 is as follows: binding a single track beam 4 on a hoist 8 through a steel bar or a steel wire rope, and → pulling the hoist 8 by a worker standing on the connecting bridge 1, vertically hoisting the track beam 4 by the hoist 8, making the axis of the track beam 4 vertical to the hoisting hole 11, aligning the lower end of the track beam 4 with the center of the hoisting hole 11 → operating the hoist 8 by the worker, continuously and slowly lowering the track beam 4 until the lower end of the track beam 4 penetrates through the hoisting hole 11 → after the lower end of the track beam 4 penetrates through the hoisting hole 11, connecting the hoist 8 in the left electric hanging basket 6 to the lower end of the track beam 4, continuously and slowly lowering the track beam 4 until the upper end of the track beam 4 is about to break away from the hoisting hole 11 → the worker standing below the track beam 4 in the right electric hanging basket 6, connecting the hoist 8 in the right electric hanging basket 6 to the track beam 4 → operating the connecting bridge 1 by the worker standing on the connecting bridge 1 The hoist 8 on the connecting bridge 1 is promoted to separate the hoist 8 used for hoisting the track beam 4 from the track beam 4 → after the track beam 4 is completely separated from the hoisting hole 11 downwards, the workers of the left electric hanging basket 6 and the right electric hanging basket 6 continue to operate the respective hoists 8, and the track beam 4 is slowly pulled to the middle position of the two electric hanging baskets 6;

in the optimized embodiment, in the process of lowering the single track beam 4, the connecting rod is fixedly connected between the left electric hanging basket 6 and the right electric hanging basket 6, and the connecting rod is utilized to better stabilize the left electric hanging basket 6 and the right electric hanging basket 6; when the previous steps are carried out, namely, after a single track beam 4 is slowly pulled to the middle position of two adjacent left and right electric hanging baskets 6, the connecting rod is firstly removed, then the workers of the left electric hanging basket 6 and the workers of the right electric hanging basket 6 respectively pull the track beam 4 by pulling the hoists 8 on the electric hanging baskets 6, and the track beam 4 is kept in a horizontal state; finally, the left electric hanging basket 6 and the right electric hanging basket 6 are lifted upwards simultaneously, and when the track beam 4 and the track supporting seat 3 are positioned and attached, the left electric hanging basket 6 and the right electric hanging basket 6 are fixedly connected into a whole by using a connecting rod; accord with the mounted position and the levelness of track roof beam 4 and track supporting seat 3, after the inspection is qualified, accomplish the permanent fixed connection of track supporting seat 3 and connecting bridge 1, accomplish the permanent fixed connection of track roof beam 4 and track supporting seat 3 simultaneously. The permanent fixing connection can be realized by full welding or bolt connection.

And S4c, repeating the construction installation of S4a and S4b until the installation of the whole rail suspension system is completed.

In the work progress of above-mentioned S3, hang and fix electronic hanging flower basket 6 for further being convenient for, still increased between bridge 1 and electronic hanging flower basket 6 and set up girder steel 2, girder steel 2 fixed connection is on bridge 1, and fixedly connected with wire rope hangers 7 on girder steel 2, the ear hole center of wire rope hangers 7 is relative from top to bottom with the hollow of circular port 12. The hoisting wire rope can be further positioned and guided by the wire rope hanging lugs 7, and the stability of the electric hanging basket 6 in the ascending and descending processes is further maintained.

The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.