CN114809579B - Erection method of elevating construction platform used for erecting formwork system around lighting shaft - Google Patents

Abstract

The invention discloses a erection method of a lifting construction platform for erecting a formwork system around a lighting well, which solves the problem of how to develop a convenient lifting movable supporting platform for constructing structures around the lighting well; a rectangular horizontal frame body (6) is arranged in the daylighting well (5), a left front support leg upper end hinge seat (7), a right front support leg upper end hinge seat (8), a left rear support leg upper end hinge seat and a right rear support leg upper end hinge seat are respectively arranged on the lower bottom surface of the rectangular horizontal frame body, a left front support leg outer sleeve (9) is hinged on the left front support leg upper end hinge seat (7), a left front support leg inner sleeve (10) and a left front support angle steel (11) are movably sleeved in the lower port of the left front support leg outer sleeve, and the left front support angle steel is lapped on an L-shaped ridge at the inner side of the top end of the lower layer left floor slab beam body (3); the structures of the supporting legs connected with the hinge seats at the upper ends of the four supporting legs are the same; the lifting construction platform can be lifted along with the lifting of the construction floor.

Description

Erection method of elevating construction platform used for erecting formwork system around lighting shaft

technical field

The invention relates to a supporting platform used in the construction site of a cast-in-place concrete high-rise building, in particular to a supporting platform used for setting up a formwork system around a lighting shaft in a corridor-type high-rise building and an erection method thereof.

Background technique

Some high-rise buildings, when viewed from a high altitude, are in the shape of a "mountain". Between two adjacent units at the gap, an outdoor fire corridor is arranged layer by layer, and a lighting well (hole) is arranged inside the fire corridor. There are walls, beams, slabs, and columns around the well. Since the inner side of the well is hollow, it is difficult to erect the construction platform when setting up the formwork of the structures around the well and constructing the steel bars and concrete pouring parts in the structures around the well. Especially with the increase of the construction layer, when the height of the construction layer exceeds a certain height, full house scaffolding cannot be used, only cantilevered scaffolding can be used to erect the construction platform, but the erection and removal of the cantilevered scaffolding has cumbersome procedures and costs High and high potential safety hazards; how to develop a convenient and liftable mobile support platform for the construction of structures around the lighting well has become a problem that needs to be solved on the construction site.

Contents of the invention

A method for erecting a lifting construction platform for building a formwork system around a lighting well solves the technical problem of how to develop a convenient lifting and moving support platform for constructing structures around the lighting well.

The present invention solves the above technical problems through the following technical solutions:

The general idea of the present invention is: in the daylighting shaft of the high-rise building in cast-in-place concrete construction, a rectangular frame platform is set, with this frame platform as support, the formwork of wall, beam, plate, column around the daylighting well is erected; On the four corners of the lower bottom surface of the rectangular frame platform, a leg hinge seat is provided. On each leg hinge seat, a leg is hinged, and a support angle steel is welded at the bottom of each leg. Through the support Angle steel, the rectangular frame support platform with four legs is supported on the top L-shaped corrugation of the floor beams on the left and right sides of the lighting well. The legs swing on the hinge seat of the transverse tie rod, and the hinged outriggers retract the transverse tie rod, and the inner ends of the four outriggers retract the transverse tie rod, all of which are hinged on a horizontal central pin shaft at the bottom end arranged along the front and rear directions, passing through the bottom end The rise and fall of the center pin shaft realizes the inward retraction and outward splayed opening of the four outriggers. On the bottom center pin shaft, a sling is connected. After the sling goes upward through the rectangular frame platform, it passes through a The lifting tripod is connected with the crane hook in the air; when the formwork of the walls, beams, slabs, and columns around the lighting well on the construction floor is completed, and the concrete pouring is completed, the center pin at the bottom end is axially moved by the aerial crane. Lifting up, along with the lifting and moving of the center pin shaft at the bottom end, the four outriggers hinged on the center pin shaft at the bottom end retract and retract the horizontal tie rod, which will respectively drive the outriggers to retract into the lighting well, so that the supporting angle steel and the floor plate The L-shaped corrugated surface at the top of the beam is detached, so that the entire platform can rise without colliding with the poured walls, beams, slabs, and columns around the lighting well; After the floor is located, the construction personnel standing in the upper floor slab respectively pull the lower ends of the outriggers towards the floor slab, and cooperate with the crane to lower the overall support platform, so that the rectangular frame of the four outriggers supports the platform support. The supporting angle steel on the legs is supported on the top L-shaped ribs of the upper floor slab beams on the left and right sides of the lighting well, and this is repeated until the formwork of the structures around the lighting wells on each floor of the entire building is completed.

An elevating construction platform for erecting a formwork system around a daylighting shaft of a high-rise building, including the daylighting shaft being constructed, and the left side floor slab beam body of the lower floor and the front side floor slab of the lower floor that have been poured are respectively arranged around the daylighting shaft 1. The floor slab beam body on the right side of the lower floor and the rear corridor of the lower floor are provided with a rectangular horizontal frame in the lighting shaft, and on the lower bottom of the rectangular horizontal frame, there are respectively provided with a hinge seat at the upper end of the left front outrigger and a hinge at the upper end of the right front outrigger. Seat, hinge seat at the upper end of the left rear outrigger, and hinge seat at the upper end of the right rear outrigger. The structures of the legs connected to the hinge seat at the upper end of these four outriggers are the same; The outer sleeve of the leg, the inner sleeve of the left front outrigger is movably socketed in the lower port of the outer sleeve of the left front outrigger, the lower end of the inner sleeve of the left front outrigger is welded and connected with the left front support angle steel, and the left front support angle steel is lapped on the lower layer The inner side of the top of the left floor slab beam is L-shaped; the right front outrigger outer sleeve is hinged on the hinge seat at the upper end of the right front outrigger, and the right front outrigger inner sleeve is movably socketed in the lower port of the right front outrigger outer sleeve. Sleeve, the lower end of the inner sleeve of the right front outrigger is welded and connected with the right front support angle steel, and the right front support angle steel is lapped on the top inner L-shaped corrugation of the lower right floor beam body; the lower inner side of the outer sleeve of the left front outrigger The lower hinge seat of the left front outrigger is provided, and the left front swing rod is hinged on the lower hinge seat of the left front leg. The right end of the left front swing rod is hinged on the center pin at the bottom end, and a right front The hinge seat of the lower part of the outrigger is hinged with the right front swing rod on the hinge seat of the lower part of the right front leg. The left end of the right front swing rod is hinged on the center pin at the bottom. A sling is connected to the center pin, and the other end of the sling is connected to the lifting tripod after passing through the rectangular horizontal frame body.

A platform top plate is arranged on the rectangular horizontal frame body, a construction climbing bracket is arranged on the platform top plate, hinges are arranged on the left and right ends of the platform top plate, and a gap sealing flap is connected to the hinge.

A method for erecting an elevating construction platform for a formwork system around a lighting well, including the lighting well being constructed, and the poured lower left floor slab beam body and the lower front floor are respectively arranged around the lighting well. The slab, the floor slab beam body on the right side of the lower floor, and the rear corridor of the lower floor are provided with a rectangular horizontal frame in the lighting shaft, and on the lower bottom of the rectangular horizontal frame, there are respectively provided with a hinge seat at the upper end of the left front leg and an upper end of the right front leg. The hinge seat, the hinge seat at the upper end of the left rear leg, the hinge seat at the upper end of the right rear leg, the structures of the legs connected to the hinge seat at the upper end of these four legs are the same; the hinge seat at the upper end of the left front leg is hinged with a left front The outer sleeve of the outrigger, the inner sleeve of the left front outrigger is movably sleeved in the lower port of the outer sleeve of the left front outrigger, the lower end of the inner sleeve of the left front outrigger is welded and connected with the left front support angle steel; the hinge at the upper end of the right front outrigger The outer sleeve of the right front outrigger is hinged on the seat, and the inner sleeve of the right front outrigger is movably sleeved in the lower port of the outer sleeve of the right front outrigger, and the lower end of the inner sleeve of the right front outrigger is welded and connected with a right front support angle steel; The inner side of the lower part of the outer sleeve of the left front outrigger is provided with a lower hinge seat of the left front outrigger, on which a left front swing rod is hinged, and the right end of the left front swing rod is hinged on the center pin at the bottom end, and on the right front outrigger The inner side of the lower part of the outer sleeve is provided with the lower hinge seat of the right front outrigger, on which the right front swing rod is hinged, the left end of the right front swing rod is hinged on the bottom center pin shaft, and the bottom end center pin shaft is along the If the front and rear directions are set horizontally, a sling is connected to the center pin at the bottom, and the other end of the sling is connected to the lifting tripod after passing through the rectangular horizontal frame, and the top of the lifting tripod is connected to the aerial hook through the ring. together; characterized by the following steps:

The first step is to lap the left front support angle steel on the top inner L-shaped corrugation of the left floor slab beam body on the lower floor, and connect the right front support angle steel to the top inner L-shaped corrugation of the lower right floor slab beam body. The rear support angle steel is lapped on the top inner L-shaped flute of the left floor slab body on the lower floor, and the right rear support angle steel is lapped on the top inner L-shaped flute of the lower right floor slab body. At this time, the left front swing rod , the right front swing rod and the center pin at the bottom end are in the same horizontal plane, the outer sleeve of the left front outrigger, the rectangular horizontal frame body, the outer sleeve of the right front outrigger, the left front swing rod and the right front swing rod form a stable trapezoidal bracket, The entire frame is supported between the floor beam body on the left side of the lower floor and the floor beam body on the right side of the lower floor;

The second step is to set up the climbing bracket for construction on the rectangular horizontal frame body. On the rectangular horizontal frame body and the climbing bracket for construction, the formwork system on the upper left floor slab beam body and the upper right floor slab beam are respectively erected. Set up the formwork system on the body and carry out concrete pouring;

Step 3: When the formwork of the walls, beams, slabs, and columns around the lighting shaft on the construction floor is completed, and the concrete pouring is completed, the center pin at the bottom end is hoisted upwards through the aerial hook, and along with the center pin at the bottom end, The pin shaft is lifted and moved upwards, and the four outriggers hinged on the center pin shaft at the bottom end retract and retract the horizontal tie rod, which will respectively drive the four outriggers and retract them into the lighting shaft synchronously, so that each supporting angle steel and the top of the floor slab beam The L-shaped corrugated surface is separated;

Step 4: The hook lifts the entire lifting construction platform to the lighting shaft on the upper floor through the lifting ring, lifting tripod and lifting rope, and supports the four outriggers on the upper left floor slab beam body and the upper right floor. On the side floor slab beam body.

The overall lifting construction platform of the present invention can be made in advance on the processing site, and when necessary, it can be hoisted in the lighting well as a whole, and can be lifted following the lifting of the construction floor through lifting; it does not need to be erected and dismantled on site, avoiding the occupation of tower cranes for on-site installation time; overcome the layer-by-layer construction and layer-by-layer dismantling of traditional platforms.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural view of the lifting construction platform of the present invention in the side view direction;

Fig. 3 is a structural schematic diagram of the legs of the lifting construction platform of the present invention when they are retracted inward;

Fig. 4 is the plane view of the lighting shaft of the high-rise building in the cast-in-place concrete construction of the present invention.

Detailed ways

The present invention is described in detail below in conjunction with accompanying drawing:

An elevating construction platform for erecting a formwork system around a daylighting well of a high-rise building, including a daylighting well 5 being constructed, and around the daylighting well 5 are respectively provided with a poured lower left floor slab beam body 3 and a lower front The side floor slab 1, the floor slab beam body 4 on the right side of the lower floor, and the rear corridor 2 of the lower floor are provided with a rectangular horizontal frame 6 in the lighting shaft 5, and left front The hinge seat 7 at the upper end of the outrigger, the hinge seat 8 at the upper end of the right front outrigger, the hinge seat at the upper end of the left rear outrigger, the hinge seat at the upper end of the right rear outrigger, the structures of the legs connected to the hinge seats at the upper end of these four outriggers are the same ; On the hinge seat 7 at the upper end of the left front leg, the left front leg outer sleeve 9 is hinged, and in the lower port of the left front leg outer sleeve 9, the left front leg inner sleeve 10 is movably connected. The lower end of the inner sleeve 10 is welded with a left front support angle steel 11, which is lapped on the top inner L-shaped corrugation of the left floor beam body 3 on the left side of the lower floor, and the inner sleeve 10 of the left front leg can In the outer sleeve 9, the expansion and contraction are realized, and the two are inserted into different pin holes through pins to realize the connection and fixation after expansion; on the hinge seat 8 at the upper end of the right front outrigger, the outer sleeve of the right front outrigger is hinged 12. In the lower port of the outer sleeve 12 of the right front outrigger, the inner sleeve 13 of the right front outrigger is movably connected, and the lower end of the inner sleeve 13 of the right front outrigger is welded and connected with the right front support angle steel 14, and the right front support angle steel 14 It is lapped on the L-shaped corrugation on the top inner side of the floor plate beam body 4 on the right side of the lower floor; on the inner side of the lower part of the outer sleeve 9 of the left front outrigger, there is a hinge seat 15 at the lower part of the left front outrigger, and on the hinge seat 15 at the lower part of the left front outrigger , hinged with the left front swing rod 16, the right end of the left front swing rod 16 is hinged on the bottom center pin shaft 19, on the inner side of the bottom of the outer sleeve 12 of the right front leg, there is a hinge seat 17 at the lower part of the right front leg, on the right front leg On the lower hinge seat 17, the right front swing link 18 is hinged, and the left end of the right front swing link 18 is hinged on the bottom center pin shaft 19, and the bottom end center pin shaft 19 is horizontally arranged along the front-back direction; The inner side of the lower part of the sleeve is provided with the lower hinge seat of the left rear outrigger with the same structure as the lower hinge seat 15 of the left front outrigger outer sleeve 9 of the left front outrigger, and the left rear swing bar is hinged on the hinge seat of the lower part of the left rear outrigger; The lower hinge seat of the right rear outrigger with the same structure as the right front outrigger lower hinge seat 17 of the right front outrigger outer sleeve 12 is arranged on the bottom inner side of the outer sleeve of the right rear outrigger, on the lower hinge seat of the right rear outrigger The right rear swing rod is hinged; the right end of the left rear swing rod and the left end of the right rear swing rod are all hinged on the bottom center pin shaft 19; two parallel suspension ropes 20 are connected on the bottom end center pin shaft 19, After the other end of two parallel suspension ropes 20 passes through rectangular horizontal frame body 6, be connected on the lifting tripod 22, the top of lifting tripod 22 is connected together by suspension ring 23 and aerial suspension hook.

A platform roof 28 is arranged on the rectangular horizontal frame body 6, and a construction climbing bracket 21 is arranged on the platform roof 28. Construction workers enter on the platform roof 28 to carry out the upper left floor beam body 26 and the upper right floor. The erection of the formwork system on the plate girder body 27; hinges 24 are provided at the left and right ends of the platform roof 28, and a gap sealing flap 25 is connected to the hinge 24. After the gap sealing flap 25 is turned outwards , realize the sealing of the gap outside the rectangular horizontal frame body 6, and ensure the safety of the construction personnel entering the platform.

A method for erecting an elevating construction platform for a formwork system around a lighting well, comprising a lighting well 5 in construction, and around the lighting well 5 are respectively provided with a poured lower left floor slab beam body 3 and a lower floor The front floor slab 1, the floor slab beam body 4 on the right side of the lower floor and the rear corridor 2 on the lower floor are provided with a rectangular horizontal frame 6 in the lighting well 5, and on the lower bottom surface of the rectangular horizontal frame 6, there are respectively provided with left front The hinge seat 7 at the upper end of the outrigger, the hinge seat 8 at the upper end of the right front outrigger, the hinge seat at the upper end of the left rear outrigger, the hinge seat at the upper end of the right rear outrigger, the structures of the legs connected to the hinge seats at the upper end of these four outriggers are the same ; On the hinge seat 7 at the upper end of the left front leg, the left front leg outer sleeve 9 is hinged, and the left front leg inner sleeve 10 is movably socketed in the lower port of the left front leg outer sleeve 9, and the left front leg inner sleeve The lower end of the pipe 10 is welded with a left front support angle steel 11; the right front outrigger outer sleeve 12 is hinged on the hinge seat 8 at the upper end of the right front outrigger, and the right front outrigger is movably socketed in the lower port of the right front outrigger outer sleeve 12 The inner casing 13 is welded with the right front support angle steel 14 at the lower end of the inner casing 13 of the right front leg; the lower inner side of the outer sleeve 9 of the left front leg is provided with a hinge seat 15 at the lower part of the left front leg, and a hinge seat 15 is arranged at the lower part of the left front leg. The seat 15 is hinged with a left front swing link 16, and the right end of the left front swing link 16 is hinged on the bottom center pin shaft 19, and the lower inner side of the right front support leg outer sleeve 12 is provided with a hinge seat 17 at the lower part of the right front support leg. Right front swing link 18 is hinged on the lower hinge seat 17 of the leg, and the left end of right front swing link 18 is hinged on the bottom center pin 19. The bottom center pin 19 is horizontally arranged along the front-to-back direction. A suspension rope 20 is connected to the top, and the other end of the suspension rope 20 is connected to the lifting tripod 22 after passing through the rectangular horizontal frame body 6. The top of the lifting tripod 22 is connected to the aerial hook through the suspension ring 23; it is characterized in that The following steps:

The first step is to lap the left front support angle steel 11 on the top inner L-shaped corrugation of the left floor slab beam body 3 on the lower floor, and connect the right front support angle steel 14 to the top inner L-shaped corrugation of the lower right floor slab beam body 4 Above, the left rear support angle steel is lapped on the top inner L-shaped corrugation of the left floor slab body 3 on the lower floor, and the right rear support angle steel is lapped on the top inner L-shaped corrugation of the lower right floor slab beam body 4, Now, left front swing link 16, right front swing link 18 and bottom center pin 19 are in the same horizontal plane, left front leg outer sleeve 9, rectangular horizontal frame body 6, right front leg outer sleeve 12, left front swing 16 and the right front swing rod 18 form a stable trapezoidal bracket, so that the whole frame is supported between the floor beam body 3 on the left side of the lower floor and the floor beam body 4 on the right side of the lower floor;

The second step, on the rectangular horizontal frame body 6, the climbing bracket 21 for construction is set, and on the rectangular horizontal frame body 6 and the climbing bracket 21 for construction, the formwork system on the left floor slab beam body 26 of the upper floor is respectively set up and the upper floor The formwork system on the right floor slab beam body 27 is erected, and concrete pouring is carried out;

In the third step, when the formwork of the walls, beams, slabs and columns around the lighting shaft of the construction floor is completed, and the concrete pouring is completed, the center pin shaft 19 at the bottom end is lifted upwards by the hook in the air. The center pin shaft 19 lifts upwards and moves, and the four legs hinged on the bottom center pin shaft 19 retract and retract the transverse pull rod, which will respectively drive the four legs and retract them into the lighting shaft synchronously, so that each support angle steel and the floor plate The L-shaped corrugated surface at the top of the beam is detached;

The fourth step, the hook passes through the lifting ring 23, the lifting tripod 22 and the lifting rope 20, and the entire lifting construction platform is hoisted to the lighting well on the upper floor, and the four legs are supported on the left floor slab beam body of the upper floor 26 and the upper floor slab beam body 27 on the right side;

The overall frame body of the present invention rises following the layered pouring of the floors, and it only needs to be lifted as a whole by the tower crane, which greatly saves the cost and time for erecting the construction platform.

Claims (2)

1. A method for erecting an elevating construction platform for the formwork system around the lighting shaft. Around the lighting shaft (5) are respectively provided with the poured left floor slab beam body (3) of the lower floor and the front floor of the lower floor. The slab (1), the floor slab beam body (4) on the right side of the lower floor and the rear corridor (2) of the lower floor are provided with a rectangular horizontal frame (6) in the lighting well (5), and a rectangular horizontal frame (6) On the lower bottom surface of the left front outrigger, the upper end hinge seat (7) of the left front outrigger, the upper end hinge seat (8) of the right front outrigger, the upper end hinge seat of the left rear outrigger, and the upper end hinge seat of the right rear outrigger are arranged respectively. The structure of the legs connected to the upper hinge base is the same; the left front outrigger outer sleeve (9) is hinged on the left front outrigger upper hinge base (7), and the lower port of the left front outrigger outer sleeve (9) The middle movable sleeve is connected with the inner casing (10) of the left front leg, and the lower end of the inner casing (10) of the left front leg is welded and connected with the left front support angle steel (11); The right front outrigger outer sleeve (12), the right front outrigger inner sleeve (13) is movably sleeved in the lower port of the right front outrigger outer sleeve (12), and the lower end of the right front outrigger inner sleeve (13) The right front support angle steel (14) is welded and connected; the lower hinge seat (15) of the left front outrigger is arranged on the inner side of the lower part of the left front outrigger outer sleeve (9), and the left front pendulum is hinged on the lower hinge seat (15) of the left front outrigger Rod (16), the right end of the left front swing rod (16) is hinged on the center pin shaft (19) at the bottom end, and the lower hinge seat (17) of the right front leg is arranged on the inner side of the lower part of the outer sleeve (12) of the right front leg, A right front swing link (18) is hinged on the lower hinge seat (17) of the right front leg, and the left end of the right front swing link (18) is hinged on the bottom center pin shaft (19), and the bottom end center pin shaft (19) is along the If the front and rear directions are set horizontally, a sling (20) is connected to the center pin shaft (19) at the bottom, and the other end of the sling (20) passes through the rectangular horizontal frame (6) and is connected to the lifting tripod (22 ), the top of the lifting tripod (22) is connected with the aerial hook through the lifting ring (23); it is characterized by the following steps: The first step is to lap the left front support angle steel (11) on the top inner L-shaped flute of the left floor slab body (3) on the lower floor, and lap the right front support angle steel (14) to the lower right floor slab beam body ( 4) Lap the left rear support angle steel on the top inner L-shaped corrugation of the top left floor beam body (3) on the lower floor, and connect the right rear support angle steel to the lower right floor beam Body (4) on the top inner L-shaped corrugated, at this time, the left front swing link (16), the right front swing link (18) and the bottom center pin shaft (19) are in the same horizontal plane, the left front outrigger outer sleeve ( 9), the rectangular horizontal frame body (6), the outer sleeve of the right front outrigger (12), the left front swing rod (16) and the right front swing rod (18), form a stable trapezoidal bracket, so that the whole frame body is supported on the lower left Between the side floor slab beam body (3) and the lower right floor slab beam body (4); The second step is to set up the construction climbing bracket (21) on the rectangular horizontal frame (6), and respectively carry out the upper left floor slab beam body ( 26) Erection of the formwork system on the upper floor and the erection of the formwork system on the upper right floor slab beam body (27), and concrete pouring; In the third step, when the formwork of the walls, beams, slabs and columns around the lighting shaft of the construction floor is completed, and the concrete pouring is completed, the center pin shaft (19) at the bottom end is lifted upwards through the hook in the air, and as the The bottom center pin shaft (19) is hoisted and moved upwards, and the four legs hinged on the bottom center pin shaft (19) retract and retract the horizontal pull rod, which will respectively drive the four legs and retract them into the lighting well synchronously, so that Each supporting angle steel is detached from the top L-shaped corrugated surface of the floor slab beam; The fourth step, the hook passes through the lifting ring (23), the lifting tripod (22) and the lifting rope (20), and lifts the entire lifting construction platform to the lighting well on the upper floor, and supports the four legs on the upper floor On the left floor slab beam body (26) and the upper floor right floor slab beam body (27). 2. A method for erecting a lifting construction platform for a formwork system around a lighting well according to claim 1, characterized in that a platform top plate (28) is provided on a rectangular horizontal frame (6), and a platform top plate (28) is arranged on the platform The top plate (28) is provided with construction climbing brackets (21), the left and right ends of the platform top plate (28) are provided with hinges (24), and the hinges (24) are connected with gap closing flaps (25) .

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