CN111075183A - Construction platform for court decoration of super high-rise building and installation method - Google Patents
Construction platform for court decoration of super high-rise building and installation method Download PDFInfo
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- CN111075183A CN111075183A CN202010005576.2A CN202010005576A CN111075183A CN 111075183 A CN111075183 A CN 111075183A CN 202010005576 A CN202010005576 A CN 202010005576A CN 111075183 A CN111075183 A CN 111075183A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
- E04G3/32—Hoisting devices; Safety devices
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically
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Abstract
The invention provides a construction platform for court decoration of a super high-rise building and an installation method, wherein the construction platform comprises a suspension cable platform and a lifting control device, the suspension cable platform is a net-shaped construction platform formed by crossing transverse steel strands and longitudinal steel strands, and the lifting control device comprises a bearing net rack, a suspension rope and a take-up and pay-off mechanism; the bearing net rack comprises a transverse supporting rod, a longitudinal supporting rod and a vertical support, the longitudinal supporting rod and the transverse supporting rod are crossed to form a net-shaped supporting platform, and two ends of the longitudinal supporting rod and two ends of the transverse supporting rod are fixedly connected with the upper end of the vertical support; one end of the suspension rope is fixedly arranged on the suspension rope platform, and the suspension rope body bypasses the net-shaped supporting platform and is detachably connected with the movable lock catch on the suspension rope; the take-up and pay-off mechanism comprises a take-up and pay-off motor and a take-up and pay-off rope, one end of the take-up and pay-off rope is wound on a rotating shaft of the take-up and pay-off motor, and the other end of the take-up and pay-off rope is fixedly connected with the suspension cable platform after bypassing the bearing. The decoration construction platform is more convenient to disassemble and assemble, shortens the decoration period and is beneficial to reducing the decoration cost of the whole building.
Description
Technical Field
The invention relates to the technical field of super high-rise building atrium decoration, in particular to a construction platform for super high-rise building atrium decoration.
Background
The super high-rise building refers to a building body with more than 40 floors and more than 100 meters of height. The national general rule for civil building design GB50352-2005 stipulates that when the building height exceeds 100m, both the residential buildings and the public buildings are super high-rise buildings.
The court decoration face of super high-rise building is super high super large, and the molding design is complicated, and construction quality requires highly, consequently must provide safe and reliable's operation platform in order to make things convenient for the construction, adopts the traditional full hall scaffold method of setting up to exist the problem be:
1. the self weight is large and exceeds the floor slab load limit, and the high-rise floor slab must be reinforced;
2. the number of required steel pipes is huge, the number of times of secondary transfer is large, and the cost is huge;
3. the assembling and disassembling period is long, and 2-3 months are needed.
Therefore, the scheme of adopting the full framing scaffold is not preferable.
To this end, the chinese patent of the invention provides a suspension cable platform (publication No. CN102168483B), which includes a transverse cable and a longitudinal cable disposed parallel to a horizontal plane, the transverse cable and the longitudinal cable are perpendicularly crossed to form a net structure, two ends of the transverse cable and the longitudinal cable are fixed on a cross beam through an anchor bolt, and a working surface is laid on the net structure. The front ends of the transverse cables and the longitudinal cables are in a heart-shaped ring structure, and the heart-shaped ring is connected with the anchor bolt through a turn buckle. The invention selects a plane form formed by crossing flexible steel wire ropes vertically and horizontally, the two ends of the transverse rope are fixed on the girder of the main structure by using anchorage devices, and all loads on the platform are directly transmitted to the girder, thereby realizing the advantages that the construction platform is not limited by floor slab loads, the material consumption is less, and the construction period is short.
In actual use, after a certain layer of the suspension cable platform is used, the longitudinal steel strands and the transverse steel strands need to be completely disassembled and then installed, and construction difficulty and construction amount are large.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a construction platform for the atrium decoration of a super high-rise building and an installation method.
In order to solve the technical problems, the invention provides a construction platform for a court decoration of a super high-rise building, which comprises a suspension cable platform, a lifting control device and a lifting control device, wherein the suspension cable platform comprises a plurality of transverse steel strands and a plurality of longitudinal steel strands, the transverse steel strands and the longitudinal steel strands are vertically crossed and are parallel to a horizontal plane to form a net-shaped construction platform, and two ends of each of the transverse steel strands and the longitudinal steel strands are fixed on a bearing beam of a building body; the lifting control device comprises a bearing net rack, a suspension rope and a take-up and pay-off mechanism; the bearing net rack comprises a plurality of transverse supporting rods, a plurality of longitudinal supporting rods and a plurality of vertical supports, the plurality of vertical supports are fixed on the top surface of the building body around the periphery of the atrium, the plurality of longitudinal supporting rods and the plurality of transverse supporting rods are vertically crossed and parallel to the horizontal plane to form a net-shaped supporting platform, and two ends of the longitudinal supporting rods and two ends of the transverse supporting rods are correspondingly and fixedly connected with the upper ends of the vertical supports; the suspension rope is provided with a plurality of suspension ropes, one end of each suspension rope is fixedly arranged at the cross-shaped intersection of the longitudinal steel strand and the transverse steel strand, and the suspension rope main body bypasses the cross-shaped intersection of the longitudinal support rod and the transverse support rod above the suspension rope main body and is detachably connected with the movable lock catch on one end of the suspension rope; the take-up and pay-off mechanism comprises a plurality of take-up and pay-off motors and take-up and pay-off ropes arranged in one-to-one correspondence with the take-up and pay-off motors, one ends of the take-up and pay-off ropes are wound on rotating shafts of the take-up and pay-off motors, and the other ends of the take-up and pay-off ropes are fixedly connected with the suspension cable.
When the construction platform is used, the suspension cable platform is installed on a next higher layer according to the decoration sequence from top to bottom, after finishing decoration of the next higher layer, the movable lock catch on the suspension rope is unlocked, the length of the suspension rope is adjusted to the position of the next decoration layer, and then the movable lock catch is locked; and then separating the suspension cable platform from the bearing beam of the building body, controlling a retracting motor to gradually expand the retracting rope and descend to the position of the next decoration layer to stop, and at the moment, connecting the suspension cable platform and the bearing beam of the decoration layer into a whole.
Above-mentioned construction platform is used in super high-rise building zhongting fitment is applicable to super high-rise fitment, this fitment construction platform is for suspension cable platform among the prior art, the dismouting is more simple and convenient, the decoration cycle has been shortened, do benefit to the fitment cost that reduces whole building, in addition, utilize the suspension rope can bear the part and bear, help reducing the load of building body carrier bar, improve the stability of suspension cable platform, provide effectual safety guarantee for staying to establish the lifting hanging flower basket breach.
As an improved technical scheme, still including receiving and releasing the rope locking ware, receive and release the rope locking ware and include base and footstock, the roof at the building body is fixed to the base, and this base upper end has U type screw rod, the footstock includes opening semicircular part down and with two integrative fixed parts in tip of semicircular part, the fixed part has the through-hole of wearing to establish U type screw rod, receive and release the perforation that rope part passed U type screw rod and semicircular part and constitute to establish the nut locking of U type screw rod or relax through the spiral shell.
Based on the improved scheme, on one hand, the accidental release of the retractable rope by the retractable motor can be avoided, on the other hand, the retractable rope can bear part of load, and the bearing requirement of the suspension cable platform on the building body bearing beam is reduced.
As an improved technical scheme, a fixed pulley is arranged on the longitudinal supporting rod, and the winding and unwinding rope is wound on the wheel surface of the fixed pulley.
Based on above-mentioned modified scheme, install the fixed pulley, can reduce the frictional force of lifting rope and bearing rack, obtain effectual life.
As an improved technical scheme, bamboo gangboards and moso bamboos bound and paved on the upper surface of the suspension cable platform from top to bottom in sequence.
Based on the improved scheme, the bamboo springboard is laid to facilitate the placement of decorative machinery, materials and standing personnel on the suspension cable platform.
As an improved technical scheme, two ends of the transverse steel strand and the longitudinal steel strand are bent towards the middle to form two parallel strands and are fixed by steel wire clamps, and bent parts of the longitudinal steel strand and the transverse steel strand are fixedly arranged on a bearing beam of a building body through a turn buckle and a chemical anchor bolt.
As an improved technical scheme, the ends of the longitudinal steel strands and the transverse steel strands are provided with free parts of 100mm-500 mm.
As an improved technical scheme, the cross-shaped intersection of the longitudinal struts and the transverse struts is fixed through scaffold fasteners.
As an improved technical scheme, the cable suspension platform is provided with a plurality of notches for installing the electric lifting basket.
The second aspect of the present invention provides a method for installing a construction platform for a super high-rise building atrium decoration, comprising: the method comprises the following installation steps:
s10, mounting a suspension cable platform;
s11, modeling and simulating by using SAP2000 according to the field size, arranging according to the distance of 1 meter, and rechecking the structure;
self-weight loading: node load 0.5kPa x 1m ═ 0.5 kN;
loading a movable load: the node load was 1.5kPa x 1m ═ 1.5 kN;
the design force of a single steel strand is 90kN, the calculated value is more than 85kN, the total safety is realized, the end part is subject to the chemical anchor bolt parameter, the chemical anchor bolt uplift resistance design value of M20 is 50KN, when the distance between the two chemical anchor bolts is more than 200, the concrete strength is more than C30, the requirement is met, and the strength of the site concrete beam is more than C30, so that the requirement is met;
s12, according to the calculation result of S21, drilling holes in the load-bearing beam of the building and installing chemical anchor bolts;
after S13 and 48 hours, performing a drawing test on the chemical anchor bolt, wherein the drawing test value is required to be 60kN multiplied by 1.5 to 90kN, and erecting the transverse steel strand after the transverse steel strand is detected to be qualified;
s14, erecting a transverse steel strand, welding an end head with a seal ring in time after the transverse steel strand is cut off, fixing by using a steel wire clamp, and connecting with a corresponding chemical anchor bolt by using a turn buckle;
s15, erecting longitudinal steel strands, arranging the longitudinal steel strands on the transverse steel strands, and performing tensioning readjustment through a turn buckle;
s16, after the transverse steel strands and the longitudinal steel strands form a square grid, laying a lower bamboo springboard to form a temporary walking channel for binding the intersection points of the square grid, and binding the two channels by hemp ropes;
s17, paving a nylon net and a dense mesh safety net;
s18, fully paving bamboo gangplank, and paving dense mesh net;
s20, mounting a bearing net rack, firstly, fixing a plurality of vertical supports on the top surface of a building body around the periphery of the atrium, then mounting transverse supporting rods and longitudinal supporting rods at equal intervals, and fixing the cross-shaped intersection of the transverse supporting rods and the longitudinal supporting rods by using a scaffold;
s30, mounting a suspension rope, fixing one end of the suspension rope at the cross of the longitudinal steel strand and the transverse steel strand, and enabling the other end of the suspension rope to bypass the cross of the longitudinal support rod and the transverse support rod right above and be detachably connected with the longitudinal steel strand and the transverse steel strand through movable latches;
s40, installing a take-up and pay-off mechanism, installing a plurality of take-up and pay-off motors on the outer side of the vertical support, installing a take-up and pay-off rope locker between the take-up and pay-off motors and the vertical support, winding one end of a take-up and pay-off rope on a rotating shaft of the take-up and pay-off motors, and fixedly connecting the other end of the take-up and pay-off rope with the suspension cable platform after the.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic perspective view of a construction platform for a court fitment of a super high-rise building provided in example 1;
FIG. 2 is a front view of the construction platform of FIG. 1;
FIG. 3 is a cross-sectional view of the messenger platform of FIG. 2;
FIG. 4 is a cross-sectional view of the pay-off line lock of FIG. 2;
FIG. 5 is a first schematic view of a transverse steel strand connected to a load beam of a building body;
FIG. 6 is a second schematic view of the connection of a transverse strand to a load beam of the building body;
reference numerals: the device comprises transverse steel strands 11, longitudinal steel strands 12, moso bamboos 13, a lower bamboo springboard 141, an upper bamboo springboard 142, a nylon net 15, a dense mesh safety net 161, a dense mesh net 162, a turnbuckle 171, a chemical anchor bolt 172, a steel wire clamp 173, a transverse strut 21, a longitudinal strut 22, a vertical support 23, a suspension rope 31, a movable lock catch 32, a retraction motor 41, a retraction rope 42, a retraction rope locker 43, a base 431, a top seat 432, a U-shaped screw 433, a nut lock 434 and a fixed pulley 44.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Example 1:
referring to fig. 1 to 6, the present embodiment provides a construction platform for a court decoration of a super high-rise building, including a suspension cable platform and a lifting control device.
As shown in fig. 1, the suspension cable platform includes a plurality of transverse steel strands 11 and a plurality of longitudinal steel strands 12, the transverse steel strands 11 and the longitudinal steel strands 12 are vertically crossed and parallel to the horizontal plane to form a mesh-shaped construction platform, and both ends of the transverse steel strands 11 and the longitudinal steel strands 12 are fixed on a bearing beam of a building body.
In this embodiment, the distance between two adjacent transverse steel strands 11 and two adjacent longitudinal steel strands 12 is preferably 0.8m to 1.5m, which is determined specifically according to factors such as load of a load beam, and the arrangement principle of the transverse steel strands 11 and the longitudinal steel strands 12 is a conventional technical means in the prior art, and is not described herein again.
The two ends of the transverse steel strand 11 and the longitudinal steel strand 12 are bent to form two parallel strands and fixed by the steel wire clamp 173, the bent parts of the transverse steel strand 11 and the longitudinal steel strand 12 are fixedly arranged on a bearing beam of a building body through a turn buckle 171 and a chemical anchor bolt 172, and the ends of the longitudinal steel strand 12 and the transverse steel strand 11 are provided with free parts of 100-500 mm, so that the flexibility can be adjusted conveniently.
In the present embodiment, two different types of installation structures are proposed for the transverse steel strands 11 and the longitudinal steel strands 12, as shown in fig. 5, the bolt portion of the turn buckle 171 is bent, as shown in fig. 5, and the chemical anchor bolt 172 is bent, and the technical effects of the two are similar.
As shown in fig. 3, the upper surface of the suspension cable platform is sequentially paved with bamboo gangboards and bamboo 13 bound and paved from top to bottom, and the suspension cable platform is provided with a plurality of notches for installing the electric lifting baskets, which are not shown in the figure.
In this embodiment, a dense mesh net 162 is laid on the bamboo gangplank, a nylon net 15 and a dense mesh safety net 161 are laid on the plurality of bamboo gangplanks, wherein the dense mesh safety net 161 is located on the upper surface of the nylon net 15, and impurities generated by decoration can be effectively collected by arranging the nylon net 15, the dense mesh safety net 161 and the dense mesh net 162.
As shown in fig. 1 and 2, the lifting control device comprises a load-bearing net rack, a suspension rope 31 and a take-up and pay-off mechanism;
the bearing net rack comprises a plurality of transverse supporting rods 21, a plurality of longitudinal supporting rods 22 and a plurality of vertical supports 23, the plurality of vertical supports 23 are fixed on the top surface of the building body around the periphery of the atrium, the plurality of longitudinal supporting rods 22 and the plurality of transverse supporting rods 21 are vertically crossed and parallel to the horizontal plane to form a net-shaped supporting platform, and two ends of each longitudinal supporting rod 22 and two ends of each transverse supporting rod 21 are correspondingly and fixedly connected with the upper ends of the vertical supports 23;
in this embodiment, the criss-cross intersection of the longitudinal strut 22 and the transverse strut 21 is fixed by a scaffold fastener, the scaffold fastener is a steel scaffold fastener in the prior art, and the longitudinal strut 22 and the transverse strut 21 are both solid steel rods.
As shown in fig. 2, the suspension ropes 31 are multiple, one end of each suspension rope 31 is fixedly arranged at the cross-shaped intersection of the longitudinal steel strand 12 and the transverse steel strand 11, and the main body of each suspension rope 31 bypasses the cross-shaped intersection of the longitudinal support rod 22 and the transverse support rod 21 above the suspension rope and is detachably connected with the movable lock catches 32 of the longitudinal steel strand 12 and the transverse steel strand 11;
in this embodiment, the lower end of the suspension rope 31 and the cross-shaped intersection of the longitudinal steel strand 12 and the transverse steel strand 11 are connected by a fixed lock catch, and the main body of the suspension rope 31 is detachably connected with the lower end of the suspension rope 31 by a movable lock catch 32. The movable latch 32 and the fixed latch are both latches commonly used in the art.
As shown in fig. 2, the winding and unwinding mechanism includes a plurality of winding and unwinding motors 41, a winding and unwinding rope 42 and a winding and unwinding rope locking device 43, the winding and unwinding rope 42 is disposed in one-to-one correspondence with the winding and unwinding motors 41, one end of the winding and unwinding rope 42 is wound on a rotating shaft of the winding and unwinding motors 41, the other end of the winding and unwinding rope 42 is fixedly connected with the suspension cable platform after passing through the bearing net rack, and the winding and unwinding rope locking device 43 is disposed on a top plate of the building body and between the.
As shown in fig. 4, the retractable rope locking device 43 comprises a base 431 and a top seat 432, the base 431 is fixed on the top plate of the building body, a U-shaped screw 433 is arranged at the upper end of the base 431, the top seat 432 comprises a semicircular part with a downward opening and a fixing part integrated with two end parts of the semicircular part, the fixing part is provided with a through hole penetrating through the U-shaped screw 433, the partial retractable rope 42 penetrates through the through hole formed by the U-shaped screw 433 and the semicircular part, and the retractable rope is locked or loosened by a nut 434 screwed with the U-shaped screw 433.
In this embodiment, the fixed pulley 44 is installed on the longitudinal strut 22, the retractable rope 42 is wound around the tread of the fixed pulley 44, and the fixed pulley 44 is provided to help reduce the friction force between the lifting rope and the load-bearing net frame, thereby achieving an effective service life.
When the construction platform is used, the suspension cable platform is installed on a next higher layer according to the decoration sequence from top to bottom, after finishing decoration of the next higher layer, the movable lock catch 32 on the suspension rope 31 is unlocked, the length of the suspension rope 31 is adjusted to the position of the next decoration layer, and then the lock catch is fixed; and then separating the suspension cable platform from the bearing beam of the building body, controlling the retracting and releasing motor 41 to gradually expand the retracting and releasing rope 42 and descend to the position of the next decoration layer to stop, and at the moment, connecting the suspension cable platform and the bearing beam of the decoration layer into a whole.
Above-mentioned construction platform is used in super high-rise building zhongting fitment is applicable to super high-rise fitment, this fitment construction platform is for suspension cable platform among the prior art, the dismouting is more simple and convenient, the decoration cycle has been shortened simultaneously, do benefit to the fitment cost that reduces whole building, in addition, utilize suspension rope 31 to undertake the part and bear, help reducing the bearing of building body carrier bar, improve the stability of suspension cable platform, provide effectual safety guarantee for staying and establishing the lifting hanging flower basket breach.
Example 2
The embodiment provides an installation method of a construction platform for a super high-rise building atrium decoration based on embodiment 1, which comprises the following installation steps:
s10, mounting a suspension cable platform;
s11, modeling and simulating by using SAP2000 according to the field size, arranging according to the distance of 1 meter, and rechecking the structure;
self-weight loading: node load 0.5kPa x 1m ═ 0.5 kN;
loading a movable load: the node load was 1.5kPa x 1m ═ 1.5 kN;
the design force of a single steel strand is 90kN, the calculated value is more than 85kN, the total safety is realized, the end part is according to the parameters of the chemical anchor bolts 172, the anti-pulling design value of the chemical anchor bolts 172 of M20 is 50KN, when the distance between the two chemical anchor bolts 172 is more than 200, the concrete strength is more than C30, the requirement is met, and the strength of the on-site concrete beam is more than C30, so that the requirement is met;
s12, according to the calculation result of S21, drilling holes in the load-bearing beam of the building and installing chemical anchor bolts 172;
when the chemical anchor bolt 172 is installed, the procedures of drilling, cleaning, injecting glue, implanting and the like must meet the requirements of technical code for post-anchoring of concrete structure JGJ 145-2004.
After S13 and 48 hours, performing a drawing test on the chemical anchor bolt 172, wherein the drawing test value is required to be 60kN multiplied by 1.5 to 90kN, and the transverse steel strand 11 can be erected after the drawing test is qualified;
s14, erecting the transverse steel strands 11, welding end heads with seal rings in time after the transverse steel strands 11 are cut off, fixing the end heads with steel wire clamps 173, and connecting the end heads with corresponding chemical anchor bolts 172 through basket bolts 171;
in S14, the length of each of the transverse steel strands 11 is measured before erecting the transverse steel strands 11, and a certain margin is left for fastening parts. Before the transverse steel strand 11 is cut off, the front and the back of the cut-off are bound by lead wires to prevent the cut-off steel strand from scattering, after the cut-off, the end is welded with a sealing ring in time, and then three steel wire clamps 173 are used to make a nose so as to form the anchor bolt. The two ends of the transverse steel strand 11 are made into movable heads and the turn bolts 171 are adopted so as to adjust the tension degree, so that the length of the nose is required to be accurate, and the length of the turn bolts 171 is larger than that of turn screws.
S15, erecting longitudinal steel strands 12, arranging the longitudinal steel strands 12 on the transverse steel strands 11, and performing tensioning readjustment through the turn buckle 171;
s16, after the transverse steel strands 11 and the longitudinal steel strands 12 form a square grid, laying a lower bamboo springboard 141 to form a temporary walking channel for binding the intersection points of the square grid, and binding the two paths by hemp ropes;
s17, paving a nylon net 15 and a dense mesh safety net 161;
s18, fully paving the bamboo gangplank 142, and paving the dense mesh net 162;
and S19, arranging a net below the suspension cable platform under the construction condition.
S20, mounting a bearing net rack, firstly, fixing a plurality of vertical supports 23 on the top surface of a building body in a circumferential direction around an atrium, then mounting transverse supporting rods 21 and longitudinal supporting rods 22 at equal intervals, and fixing the cross-shaped intersection of the transverse supporting rods 21 and the longitudinal supporting rods 22 by using a scaffold;
s30, installing a suspension rope 31, fixing one end of the suspension rope 31 at the cross-shaped intersection of the longitudinal steel strand 12 and the transverse steel strand 11, and enabling the other end of the suspension rope 31 to bypass the cross-shaped intersection of the longitudinal support rod 22 and the transverse support rod 21 right above and be detachably connected with the longitudinal steel strand 12 and the transverse steel strand 11 through a movable lock catch 32;
s40, installing a take-up and pay-off mechanism, installing a plurality of take-up and pay-off motors 41 on the outer sides of the vertical supports 23, installing a take-up and pay-off rope locking device 43 between the take-up and pay-off motors 41 and the vertical supports 23, winding one ends of the take-up and pay-off ropes 42 on rotating shafts of the take-up and pay-off motors 41, and fixedly connecting the other ends of the take-up and pay-off ropes with the suspension cable platform after the other.
In the description of the present invention, numerous specific details are set forth, however, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. A construction platform for court decoration of a super high-rise building comprises a suspension cable platform, wherein the suspension cable platform comprises a plurality of transverse steel strands (11) and a plurality of longitudinal steel strands (12), the transverse steel strands (11) and the longitudinal steel strands (12) are vertically crossed and are parallel to the horizontal plane to form a netted construction platform, and two ends of the transverse steel strands (11) and two ends of the longitudinal steel strands (12) are fixed on a bearing beam of a building body;
the lifting control device comprises a bearing net rack, a suspension rope (31) and a take-up and pay-off mechanism;
the bearing net rack comprises a plurality of transverse supporting rods (21), a plurality of longitudinal supporting rods (22) and a plurality of vertical supports (23), the plurality of vertical supports (23) are fixed on the top surface of a building body around the periphery of the atrium, the plurality of longitudinal supporting rods (22) and the plurality of transverse supporting rods (21) are vertically crossed and parallel to the horizontal plane to form a net-shaped supporting platform, and two ends of each longitudinal supporting rod (22) and two ends of each transverse supporting rod (21) are correspondingly and fixedly connected with the upper ends of the vertical supports (23);
the suspension ropes (31) are multiple, one end of each suspension rope (31) is fixedly arranged at the cross-shaped intersection of the longitudinal steel strand (12) and the transverse steel strand (11), and the main body of each suspension rope (31) bypasses the cross-shaped intersection of the longitudinal support rod (22) and the transverse support rod (21) right above and is detachably connected with the movable lock catch (32) on one end of each suspension rope (31);
the cable winding and unwinding mechanism comprises a plurality of winding and unwinding motors (41) and winding and unwinding ropes (42) which are arranged in a one-to-one correspondence mode with the winding and unwinding motors (41), one ends of the winding and unwinding ropes (42) are wound on rotating shafts of the winding and unwinding motors (41), and the other ends of the winding and unwinding ropes are fixedly connected with the suspension cable platform after bypassing the bearing net rack.
2. The construction platform for the atrium decoration of the super high-rise building as claimed in claim 1, wherein: still including receiving and releasing rope locking ware (43), receive and release rope locking ware (43) and include base (431) and footstock (432), the roof at the building body is fixed in base (431), and this base (431) upper end has U type screw rod (433), footstock (432) include opening semicircular part down and with two integrative fixed parts of tip of semicircular part, the fixed part has the through-hole of wearing to establish U type screw rod (433), receive and release rope (42) local perforation of passing U type screw rod (433) and semicircular part and constituteing to establish nut (434) locking or the relaxation of U type screw rod (433) through the spiral shell.
3. The construction platform for the atrium decoration of the super high-rise building as claimed in claim 1, wherein: the longitudinal supporting rod (22) is provided with a fixed pulley (44), and the winding and unwinding rope (42) is wound around the wheel surface of the fixed pulley (44).
4. The construction platform for the atrium decoration of the super high-rise building as claimed in claim 1, wherein: the upper surface of the suspension cable platform is sequentially paved with bamboo gangboards and bound with moso bamboos (13) from top to bottom.
5. The construction platform for the atrium decoration of the super high-rise building as claimed in claim 1, wherein: horizontal steel strand wires (11) and vertical steel strand wires (12) both ends are all buckled into two strands that parallel and are fixed with steel wire card (173) to the middle part, vertical steel strand wires (12) and horizontal steel strand wires (11) are bent the portion and are set firmly on the carrier bar of the building body through basket bolts (171), chemical crab-bolt (172).
6. The construction platform for the atrium decoration of the super high-rise building as claimed in claim 5, wherein: the ends of the longitudinal steel strands (12) and the transverse steel strands (11) are provided with free parts of 100-500 mm.
7. The construction platform for the atrium decoration of the super high-rise building as claimed in claim 1, wherein: the cross-shaped positions of the longitudinal supporting rods (22) and the transverse supporting rods (21) are fixed through scaffold fasteners.
8. The construction platform for the atrium decoration of the super high-rise building as claimed in claim 1, wherein: the cable suspension platform is provided with a plurality of gaps for installing the electric lifting baskets.
9. A method for installing a construction platform for decoration of a court of a super high-rise building is characterized in that: the method comprises the following installation steps:
s10, mounting a suspension cable platform;
s11, modeling and simulating by using SAP2000 according to the field size, arranging according to the distance of 1 meter, and rechecking the structure;
self-weight loading: node load 0.5kPa x 1m ═ 0.5 kN;
loading a movable load: the node load was 1.5kPa x 1m ═ 1.5 kN;
the design force of a single steel strand is 90kN, the calculated value is more than 85kN, the total safety is realized, the end part is according to the parameters of the chemical anchor bolts (172), the anti-pulling design value of the chemical anchor bolts (172) of M20 is 50KN, when the distance between the two chemical anchor bolts (172) is more than 200, the concrete strength is more than C30, the requirement is met, and the strength of the on-site concrete beam is more than C30, so that the requirement is met;
s12, according to the calculation result of S21, drilling holes on the bearing beam of the building and installing chemical anchor bolts (172);
after S13 and 48 hours, performing a drawing test on the chemical anchor bolt (172), wherein the drawing test value is required to be 60kN multiplied by 1.5 to 90kN, and the transverse steel strand (11) can be erected after the drawing test is qualified;
s14, erecting a transverse steel strand (11), welding an end head with a seal ring in time after the transverse steel strand (11) is cut off, fixing the end head with a steel wire clamp (173), and connecting the end head with a corresponding chemical anchor bolt (172) by using a turn-buckle bolt (171);
s15, erecting longitudinal steel strands (12), arranging the longitudinal steel strands (12) on the transverse steel strands (11), and tensioning and readjusting through turn buckle bolts (171);
s16, after the transverse steel strands (11) and the longitudinal steel strands (12) form a square grid, laying a lower bamboo springboard (141) to form a temporary walking channel, and binding the intersection points of the square grid with hemp ropes for two times;
s17, paving a nylon net (15) and a dense mesh safety net (161);
s18, fully paving bamboo gangplank (142), and paving dense mesh net (162);
s20, mounting a load-bearing net rack, firstly, fixing a plurality of vertical supports (23) on the top surface of a building body in a circumferential direction around an atrium, then mounting transverse supporting rods (21) and longitudinal supporting rods (22) at equal intervals, and fixing the cross-shaped intersection of the transverse supporting rods (21) and the longitudinal supporting rods (22) by using a scaffold;
s30, mounting a suspension rope (31), fixing one end of the suspension rope (31) at the cross-shaped intersection of the longitudinal steel strand (12) and the transverse steel strand (11), and enabling the other end of the suspension rope to bypass the cross-shaped intersection of the longitudinal support rod (22) and the transverse support rod (21) right above and be detachably connected with the longitudinal steel strand (12) and the transverse steel strand (11) through a movable lock catch (32);
s40, installing a take-up and pay-off mechanism, installing a plurality of take-up and pay-off motors (41) on the outer sides of the vertical supports (23), installing a take-up and pay-off rope locking device (43) between the take-up and pay-off motors (41) and the vertical supports (23), winding one ends of the take-up and pay-off ropes (42) on rotating shafts of the take-up and pay-off motors (41), and fixedly connecting the other ends of the take-up and pay-off ropes with a suspension cable platform after the other ends of the take-.
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| CN114033210A (en) * | 2021-11-15 | 2022-02-11 | 魏永水 | Steel strand net sheet tensioning and fastening assembly for building structure reinforcement |
| CN114212727A (en) * | 2021-12-21 | 2022-03-22 | 浙江天管久立特材有限公司 | Flat plate surfacing welding machine and plane support type flat plate surfacing welding placing platform thereof |
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Application publication date: 20200428 |