CN108412187B - Construction device and construction method for outer frame structure of ultra-high conjoined group tower - Google Patents
Construction device and construction method for outer frame structure of ultra-high conjoined group tower Download PDFInfo
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- CN108412187B CN108412187B CN201810389443.2A CN201810389443A CN108412187B CN 108412187 B CN108412187 B CN 108412187B CN 201810389443 A CN201810389443 A CN 201810389443A CN 108412187 B CN108412187 B CN 108412187B
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- 238000010276 construction Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910000746 Structural steel Inorganic materials 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract description 23
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 240000000233 Melia azedarach Species 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Classifications
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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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/001—Safety or protective measures against falling down relating to scaffoldings
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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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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a construction device and a construction method for an outer frame structure of an ultra-high conjoined group tower, and relates to the technical field of building construction equipment. The lifting scaffold aims at solving the problem that the existing lifting scaffold collides with an overhanging component, so that the scaffold cannot be lifted integrally according to normal procedures. The guide frame comprises a frame body which is enclosed on the outer side of an outer frame structure, and a guide frame which is vertically fixed on the inner side of the frame body; the two ends of the wall attaching device are detachably connected with the poured floor slab and the guide frame respectively, and the outer protective net is arranged on the wall attaching device. The construction method comprises the following steps: the construction device is positioned at the bottom of the extension member after the nth lifting of the frame body; removing the members in the frame body, which are in conflict with the overhanging members, in advance, lifting the frame body in place, connecting the frame body to the poured floor through a wall attaching device, recovering the members in the frame body, which are not in conflict with the overhanging members, and finishing the (n+1) th lifting, and constructing the (N) th layer of the outer frame structure; and repeating the steps until the frame body passes over the overhanging component, and constructing each structural layer of the overhanging component layer by layer.
Description
Technical Field
The invention relates to the technical field of building construction equipment, in particular to a construction device and a construction method for an outer frame structure of an ultra-high conjoined group tower.
Background
At present, super high-rise buildings develop rapidly in China, the functions and the appearance are gradually complicated, the super high-rise conjoined group tower structure is one type of building, and the rigidly connected super high-rise conjoined group tower has the function of mutually supporting the tower structure under structural stress, and simultaneously has the functions of interconnection and intercommunication, convenient fire-fighting organization and the like.
The method can be primarily divided into three main construction methods according to the construction sequence of the ultra-high conjoined group tower structure: firstly, constructing a group tower structure independently, and then constructing a connected structure by utilizing an integral lifting method; secondly, constructing a group tower structure in advance, and constructing a conjoined structure by adopting a high-altitude cantilever assembling method; thirdly, constructing the group tower structure in advance, erecting a high-altitude splicing jig frame when the group tower structure is constructed to the height of the conjoined structure, and installing the conjoined structure. According to the first construction method, a large number of overhanging steel corbels are reserved in advance on the outer frame column nodes of the tower structure constructed in advance according to design and construction requirements, so that later connection with a steel corridor is facilitated, the reserved overhanging steel corbels span more floors, and the lower floors of the conjoined structure often have the function of a structure conversion layer, so that the layer height is higher.
For a complex outer frame structure of an ultrahigh conjoined group tower with a large number of large-size overhanging steel corbels reserved and continuous large-layer height, an overhanging scaffold or a lifting scaffold is generally adopted for construction, however, when the overhanging scaffold is utilized for construction, the upper scaffold is vertically separated by the overhanging steel corbels for a plurality of times, the whole structure is difficult to form, and the overhanging steel corbels need to be disassembled at high altitude for a plurality of times, so that the construction risk is high; when the lifting scaffold is used for construction, the lifting scaffold is partitioned into a plurality of blocks due to the fact that the lifting scaffold is partitioned by the overhanging steel corbel of the outer frame structure, the structural integrity is poor, and the partitioned part of the lifting scaffold is temporarily erected with an outer scaffold and protected, so that the defects of high construction risk and the like exist; moreover, the super high conjoined group tower structure is often provided with a continuous large-rise floor, when the floor height exceeds the maximum cantilever height of the lifting scaffold, the lifting scaffold cannot be attached to the wall normally, and the lifting scaffold cannot be lifted integrally according to normal procedures due to the two points.
Disclosure of Invention
Aiming at the problems that the existing lifting scaffold interferes and collides with an overhanging component on an ultra-high conjoined group tower structure and the continuous large-layer high storey cannot meet the limit of the cantilever height of the lifting scaffold, so that the lifting scaffold cannot be integrally lifted according to a normal procedure, the invention aims to provide a construction device and a construction method for the ultra-high conjoined group tower outer frame structure, which are used for carrying out local orderly dismantling and supplementing on the part of a frame body, which collides with the overhanging component, and stably connecting the frame body with a poured floor slab of the outer frame structure by additionally arranging a detachable wall attaching device, thereby realizing the integral lifting of the frame body and simultaneously safely and efficiently crossing the overhanging component.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a construction equipment of super high disjunctor crowd tower frame structure, it includes: the frame body is enclosed on the outer side of the outer frame structure of the ultra-high conjoined group tower, and is formed by interconnecting a plurality of vertical rods, cross rods and inclined rods and provided with a plurality of layers of pavement plates; the guide frames are vertically fixed on the inner side of the frame body; and one end of each wall attaching device is detachably connected with the poured floor slab of the outer frame structure of the ultra-high conjoined group tower, the other end of each wall attaching device is detachably connected with the guide frame, and the outer protective net is arranged on the outer side of the frame body.
Preferably, the guide frame comprises a pair of parallel and spaced positioning guide rails which are fixedly connected into a whole through a plurality of connecting rods I vertically arranged between the two; one side of the connecting rod is fixedly connected with the frame body; the connecting truss is arranged between the positioning guide rail and the connecting rod, the connecting truss is of a space structure which is composed of a plurality of connecting rods II and provided with triangular units, one side of the connecting truss is fixedly connected with the connecting rod, and the other side of the connecting truss is vertically and fixedly connected with the middle of the connecting rod I.
Preferably, the wall attaching device comprises: the system comprises a pair of support frames which are detachably connected with a steel beam of a structure below the poured floor slab and are arranged at intervals, a pair of bases which are connected with the support frames and can vertically slide along the support frames, and a pair of guide seats which are respectively connected with the bases; the support frame is a triangular frame body formed by fixedly connecting a plurality of transverse rods, vertical rods and inclined rods, the other end of each transverse rod is connected with the structural steel beam, a chute is formed in one side, away from the structural steel beam, of each vertical rod, a roller group and a plurality of bolt holes are formed in one side of the base, the roller group can be clamped in the chute of each vertical rod and can vertically slide along the chute, and after the vertical position of the base is adjusted to be in place, positioning bolts penetrate through the bolt holes and are screwed up so that the base is fixed on the support frame; the guide seat comprises a positioning clamping piece, two ends of the horizontal direction of the positioning clamping piece are provided with a pair of clamping grooves with shapes corresponding to the cross sections of the pair of positioning guide rails, the positioning clamping piece can be buckled on the pair of positioning guide rails, the middle part of the positioning clamping piece is provided with a bolt hole, and a fastening bolt penetrates through the positioning clamping piece and is in threaded connection with the base.
Preferably, the support frame further comprises a plurality of first transverse rods, the first transverse rods are arranged at the bottom of the wing plate at the bottom of the structural steel beam, the first transverse rods are arranged at the top of the wing plate at the bottom of the structural steel beam, and the edges of the first transverse rods are connected with the edges of the first transverse rods through a plurality of bolts.
Preferably, the inner side of the clamping groove of the positioning clamping piece is also provided with a plurality of rotating wheels, the rotating wheels are uniformly distributed on two sides of the positioning guide rail, and the rotating wheels are propped against the outer wall of the positioning guide rail.
Preferably, the guide seat further comprises a reinforcing member arranged between the positioning clamping member and the base, the reinforcing member is provided with a U-shaped cross section, bolt holes matched with the fastening bolts are formed in two side walls of the reinforcing member, and the fastening bolts penetrate through the positioning clamping member and the reinforcing member to be connected with the base through bolts.
Preferably, the distance between two adjacent wall attaching devices in the vertical direction is not more than 3.6m, and the distance between two adjacent wall attaching devices in the horizontal direction is not more than 5m.
In addition, the invention also provides a construction method of the ultra-high conjoined group tower outer frame structure, which comprises the following steps:
s1: installing the construction device of the outer frame structure of the ultra-high conjoined group tower according to any one of claims 1 to 7 on the outer side of the outer frame structure of the ultra-high conjoined group tower to be constructed, and after the nth lifting of the frame body, locating at the bottom of the overhanging component of the outer frame structure of the ultra-high conjoined group tower;
s2: removing members in the frame body, which are in conflict with the overhanging members, in advance, wherein the height of a removing area is the primary lifting height h of the frame body, after the frame body is lifted in place, one end of a wall attaching device is connected with a poured floor slab of the outer frame structure of the ultra-high conjoined group tower, the other end of the wall attaching device is connected and fixed to a guide frame, members in the frame body, which are not in conflict with the overhanging members, are restored, safety enclosure is regulated, a safety mesh net is tensioned at the overhanging members to make temporary sealing, the n+1th lifting of the frame body is completed, and the Nth layer of the outer frame structure of the ultra-high conjoined group tower is constructed;
s3: and after the construction of the Nth layer structure of the outer frame structure of the ultra-high conjoined group tower is completed, repeating the step S2 until the frame body passes over the overhanging component, and constructing each structural layer where the overhanging component is positioned layer by layer, wherein N and N are integers which are greater than or equal to 1.
Preferably, in step S2, the outer side of the dismantling area of the frame body is reinforced, a plurality of transverse connecting rods are additionally arranged between two adjacent vertical rods, which are close to the dismantling area and are arranged along the width direction of the pavement slab, and the two adjacent vertical rods, which are close to the dismantling area and are arranged along the length direction of the pavement slab, are reinforced through a plurality of diagonal braces, and the transverse connecting rods and the diagonal braces are all in bolted connection with the frame body.
Preferably, in step S2, before the lifting of the frame body, the wall attaching device is fixed on the poured floor slab, the frame body is lifted to the height of the wall attaching device and then temporarily stopped, so that the positioning clamping piece of the wall attaching device is buckled on the guide frame, and after the frame body is continuously lifted to the designed height to be in place, the wall attaching device and the guide frame are fixed by tightening the fastening bolt, so that the frame body is supported on the poured floor slab of the ultra-high conjoined group tower outer frame structure.
The invention has the following effects:
1. according to the construction device of the ultra-high conjoined group tower outer frame structure, the frame body is connected with the poured floor through the guide frame and the wall attaching device, the wall attaching device is detachably connected with the frame body and the poured floor, after the construction of the current floor is finished, the connection between the wall attaching device and the frame body and the connection between the wall attaching device and the poured floor are loosened, the frame body is lifted upwards to the floor to be constructed, and the poured floor and the frame body are connected through the wall attaching device again; when the layer height of the ultra-high conjoined group tower is larger than the maximum cantilever height of the frame body, the frame body is stably supported on the poured floor slab by additionally arranging the wall attaching device, so that the cantilever height of the frame body is reduced to meet the use requirement, and the construction device has the advantages of simple structure, flexible operation, repeated use of each component and high material turnover utilization rate.
2. According to the construction method of the outer frame structure of the ultra-high conjoined group tower, firstly, the arrangement and design of the construction device of the outer frame structure of the ultra-high Lian Tiqun tower are reasonably optimized by combining the horizontal elevation distribution and the size of the outer frame structure of the ultra-high conjoined group tower, the components which collide with the outer frame structure in the range of one-time lifting height of the frame body are removed in advance, after the frame body is lifted in place, the components of the frame body are restored, the construction of the current Nth layer of the outer frame structure is implemented, and the construction is repeated until the frame body passes over the outer frame structure; the construction method has the advantages that the local orderly dismantling and the supplementing of the part of the frame body, which is in conflict with the overhanging component, are carried out, and the frame body is stably connected with the poured floor slab of the outer frame structure by additionally arranging the detachable wall attaching device, so that the frame body can safely avoid the overhanging component, the integrity of the frame body structure is ensured, the whole lifting of the frame body is realized, and meanwhile, the overhanging component is safely and efficiently crossed, compared with the traditional lifting scaffold, the construction method greatly shortens the lifting time of the frame body, improves the work efficiency by more than 40%, and solves the problems of low construction efficiency, high construction risk and the like in the traditional lifting scaffold construction; in addition, the frame body is orderly dismantled and is timely supplemented in the implementation process, so that the frame body is always kept in a closed state, the safety of the frame body and constructors can be ensured, and the feasibility and the safety of the construction of the ultra-high conjoined group tower outer frame structure are improved.
Drawings
FIG. 1 is a schematic view of a frame body partially removed before first lifting in an embodiment of a construction method of an ultra-high conjoined tower outer frame structure according to the present invention;
FIG. 2 is a diagram showing the positional relationship between the main body of the first lifting front frame and the overhanging member in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 3 is a schematic diagram of a frame body after restoring members that do not collide with the overhanging members after the first lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined group tower according to the present invention;
FIG. 4 is a diagram showing the positional relationship between the main body of the frame and the overhanging member after the first lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 5 is a schematic view of a partial removal of a main body of a second lifting front frame in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 6 is a diagram showing the positional relationship between the second lifting front frame body and the overhanging member in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 7 is a schematic view of a frame body after restoring members that do not interfere with the overhanging members after the second lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 8 is a diagram showing the positional relationship between the main body of the frame and the overhanging member after the second lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 9 is a schematic diagram illustrating a partial removal of a main body of a frame body before a third lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 10 is a diagram showing the positional relationship between the main body of the front frame and the overhanging member for the third lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 11 is a schematic view of a frame body after restoring members that do not collide with the overhanging members after the third lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 12 is a diagram showing the positional relationship between the main body of the frame and the overhanging member after the third lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 13 is a schematic view of a third partial removal of a front frame body for lifting in accordance with an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 14 is a diagram showing the positional relationship between the front frame body and the overhanging member for the fourth lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 15 is a schematic view of a frame body after restoring members that do not collide with the overhanging members after the fourth lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined group tower according to the present invention;
FIG. 16 is a diagram showing the positional relationship between the body of the frame and the overhanging member after the fourth lifting in an embodiment of a construction method of an outer frame structure of an ultra-high conjoined tower according to the present invention;
FIG. 17 is a schematic view of reinforcing a partially removed portion of a frame body according to an embodiment of the present invention;
FIG. 18 is a schematic view of a guide frame according to an embodiment of the present invention;
FIG. 19 is a schematic view showing the connection between the wall-attaching device and the poured floor slab according to one embodiment of the present invention;
FIG. 20 is a schematic diagram showing a second connection relationship between a wall-attaching device and a poured floor slab according to an embodiment of the present invention;
FIG. 21 is a schematic view illustrating the connection between the wall-attaching device and the guide frame according to an embodiment of the present invention.
The labels in the figures are as follows:
poured floor slab 20; a structural steel beam 21; a first overhanging bracket 22; a second overhanging bracket 24;
a frame body 40; a vertical bar 41; a transverse connecting rod 42; a diagonal brace 43;
a guide frame 50; a positioning rail 51; link one 52; a connecting rod 55; a connecting truss 54;
a support frame 60; a transverse bar 61; a first transverse bar 64; a vertical rod 62; an inclined rod 63;
a base 70; a roller group 71; a positioning bolt 72;
a guide 80; a positioning clip 81; a fastening bolt 82; a rotating wheel 83; the stiffener 84.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention. For convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the drawings, but this should not be construed as a limitation of the technical scheme of the present invention.
The construction device of the ultra-high conjoined group tower outer frame structure according to the present invention will be described with reference to fig. 1 to 21, which comprises: the frame body 40, which is enclosed on the outer side of the outer frame structure of the ultra-high conjoined group tower, is formed by interconnecting a plurality of vertical rods, cross rods and diagonal rods and is provided with a plurality of layers of pavement plates; a plurality of guide frames 50 vertically fixed to the inside of the frame body 40; a plurality of wall-attached devices, one end of which is detachably connected to the poured floor slab 20 of the ultra-high conjoined group tower outer frame structure, the other end of which is detachably connected to the guide frame 50, and an outer protection net (not shown) which is installed at the outer side of the frame body 40.
According to the construction device of the ultra-high conjoined group tower outer frame structure, a frame body 40 is connected with a poured floor slab 20 through a guide frame 50 and a wall attaching device, the wall attaching device is detachably connected with the frame body 40 and the poured floor slab 20, after the construction of the current floor is finished, the connection between the wall attaching device and the frame body 40 and the connection between the wall attaching device and the poured floor slab 20 are released, the frame body 40 is lifted upwards to the floor to be constructed, and the poured floor slab 20 and the frame body 40 are connected through the wall attaching device again; when the layer height of the ultra-high conjoined group tower is larger than the maximum cantilever height of the frame body 40, the frame body 40 is stably supported on the poured floor slab 20 by additionally arranging the wall attaching device, so that the cantilever height of the frame body 40 is reduced to meet the use requirement, and the construction device has the advantages of simple structure, flexible operation, repeated use of each component and high material turnover utilization rate.
As shown in fig. 18, the guide frame 50 includes a pair of parallel and spaced positioning rails 51, and the pair of positioning rails 51 are fixedly connected together by a plurality of first connecting rods 52 vertically disposed therebetween; one vertical connecting rod 55, its one side is connected in support body main part 40, opposite side rigid coupling connection truss 54, the connection truss 54 is the spatial structure who has triangle-shaped unit that comprises many connecting rods two, the opposite side vertical fixation of connection truss 54 is in the middle part of connecting rod one 52, the above-mentioned structural design of leading truck 50 can make full use of the intensity of each member, both alleviateed the dead weight of leading truck 50, the rigidity of leading truck 50 has been increased again, in order to satisfy the construction needs of stable connection support body main part 40 and wall attachment, moreover, leading truck 50 that has symmetrical structure makes the atress rather than the wall attachment who connects, avoid taking place to roll.
As shown in fig. 19 to 21, the wall attaching device includes a pair of spaced supporting frames 60 detachably connected to the structural steel beams 21 below the poured floor slab 20, a pair of bases 70 connected to the supporting frames 60 and capable of sliding vertically along the supporting frames 60, and a pair of guide seats 80 respectively connected to the bases 70, wherein the supporting frames 60 are triangular frame bodies formed by fixedly connecting a plurality of transverse rods 61, vertical rods 41 and inclined rods 63, the other ends of the transverse rods 61 are connected to the structural steel beams 21, one sides of the vertical rods 41 far away from the structural steel beams 21 are provided with sliding grooves, and fig. 19 and 20 are respectively two forms of upward and downward placement of the frame bodies of the supporting frames 60 so as to adapt to the installation requirements of the wall attaching device at different vertical positions; as shown in fig. 21, a roller group 71 and a plurality of bolt holes are arranged on one side of the base 70, the roller group 71 can be clamped in the sliding groove of the vertical rod 41 and can vertically slide along the sliding groove, and after the vertical position of the base 70 is adjusted to be in place, positioning bolts 72 penetrate through the bolt holes and are screwed up so that the base 70 is fixed on the support frame 60; the guide seat 80 comprises a positioning clamping piece 81, two ends of the positioning clamping piece 81 in the horizontal direction are provided with a pair of clamping grooves with shapes corresponding to the cross sections of the pair of positioning guide rails 51, the positioning clamping piece 81 can be buckled on the pair of positioning guide rails 51, the middle part of the positioning clamping piece 81 is provided with a bolt hole, and a fastening bolt 82 penetrates through the positioning clamping piece 81 to be in threaded connection with the base 70. The wall attaching device consists of a supporting frame 60, a base 70 and a guide seat 80 which are sequentially connected, one end of the guide seat 80 is buckled on a positioning guide rail 51 through a clamping groove, one end of the base 70 can vertically slide along the supporting frame 60 through a roller group 71, constructors can flexibly adjust the vertical displacement of the base 70 and the guide seat 80 according to construction requirements, complicated work of repeated disassembly and assembly of components is avoided, the working efficiency is improved, and the construction safety is ensured; moreover, the positioning clamping piece 81 is connected to the base 70 through the fastening bolt 82, and the width of the wall attaching device can be adjusted through adjusting the fastening bolt 82 so as to adapt to the distance between the support frame 60 and the guide frame 50, and the wall attaching device enables the frame body 40 to be more stably and reliably supported on the poured floor slab 20 of the ultra-high conjoined group tower outer frame structure, so that the problem that the height limitation of the lifting scaffold cantilever cannot be met on a large-layer high floor is solved. The support frame 60, the base 70 and the guide 80 of the present embodiment are made of a section steel material.
Referring to fig. 19 and 20, the support frame 60 further includes a plurality of first transverse rods 64, the first transverse rods 61 are disposed at the bottom of the bottom wing plate of the structural steel beam 21, the first transverse rods 64 are disposed at the top of the bottom wing plate of the structural steel beam 21, edges of the first transverse rods 61 and the first transverse rods 64 are connected through a plurality of bolts, and two transverse rods disposed at two sides of the wing plate of the structural steel beam 21 are connected through bolts to form a structure similar to a hoop, so that the support frame 60 is connected with the structural steel beam 21 more stably and firmly, the disassembly and assembly are convenient, and the damage to components caused by drilling holes in the structural steel beam 21 is avoided.
Referring to fig. 21, a plurality of rotating wheels 83 are further disposed inside the clamping groove of the positioning clamping member 81, the rotating wheels 83 are uniformly distributed on two sides of the positioning guide rail 51, and the rotating wheels 83 are abutted against the outer wall of the positioning guide rail 51, so that the positioning clamping member 81 is in close contact with the positioning guide rail 51, the rotating wheels 83 are arranged to facilitate the sliding of the guide seat 80 along the outer wall of the positioning guide rail 51, and the shaking of the guide seat 80 fastened to the guide frame 50 can be avoided.
For further adjusting the width of the wall attaching device to adapt to the horizontal distance between the supporting frame 60 and the guide frame 50, as shown in fig. 21, the guide seat 80 further comprises a reinforcing member 84 arranged between the positioning clamping member 81 and the base 70, the reinforcing member 84 has a U-shaped cross section, bolt holes matched with the fastening bolts 82 are formed in two side walls of the reinforcing member 84, the fastening bolts 82 penetrate through the positioning clamping member 81 and the reinforcing member 84 to be connected with the base 70 through bolts, and when the distance between the supporting frame 60 and the guide frame 50 is larger, the guide seat 80 and the base 70 are firmly and reliably connected due to the arrangement of the reinforcing member 84, so that the bolt rod of the fastening bolt 82 is prevented from being damaged due to stress. The reinforcement 84 of the present embodiment is made of a channel steel material.
In order to ensure construction safety, the frame body 40 must be provided with a plurality of wall attaching devices when not lifted to realize reliable connection with the outer frame structure of the ultra-high conjoined group tower, the distance between two adjacent wall attaching devices in the vertical direction is not more than 3.6m, and the distance between two adjacent wall attaching devices in the horizontal direction is not more than 5m.
When the length of the overhanging member of the ultra-high conjoined group tower outer frame structure is limited, it only interferes with the partial area of the pavement plate of the frame body 40, but not with the protective net of the frame body 40, only the width of the pavement plate needs to be reduced, so as to solve the problem that the pavement plate interferes with the overhanging member in the process that the frame body 40 passes through the overhanging member.
S1: in the early construction plan, the construction device of the outer frame structure of the ultra-high conjoined group tower is optimally designed and arranged, the planar form of the outer frame structure of the ultra-high conjoined group tower, the spatial distribution and the size of the overhanging members and the like are combined, the frame body 40 is optimally designed on the premise of ensuring the overall rigidity, the stability and the construction safety of the frame body 40, each wall attaching device is reasonably arranged, when the frame body 40 passes through the overhanging members, the wall attaching device collides with the overhanging members on the planar arrangement, then the construction device is arranged outside the outer frame structure of the ultra-high conjoined group tower, the overhanging members in the embodiment take overhanging steel brackets as examples, namely a first overhanging bracket 22 and a second overhanging bracket 24 which are positioned between an N layer and an N+1 layer floor of the outer frame structure of the ultra-high conjoined group tower, and the frame body 40 of the construction device of the ultra-high conjoined group tower outer frame structure is lifted for the nth time and then positioned at the bottom of the first overhanging bracket 22;
s2: as shown in fig. 1 and 2, the members of the frame body 40 that collide with the overhanging members are removed in advance, the height of the removing area is the primary lifting height h of the frame body 40, the width of the removing area is larger than the width of the overhanging members, the width of the removing area in this embodiment is the width of a protective mesh, according to the construction condition, the cross members that interfere with the first overhanging bracket 22 and the second overhanging bracket 24 in the horizontal aspect of the frame body 40 from top to bottom, namely the pavement slab 4 to pavement slab 7, single-piece horizontal trusses, etc., are removed, the frame body 40 is removed to the bottom of the first overhanging bracket 22 after the n+1st lifting in the vertical direction, namely the protective mesh 7 to protective mesh 13, and a wall attaching device is installed, so that one end of the wall attaching device is connected to the poured floor slab 20 of the outer frame structure of the ultra-high conjoined group tower, and the other end of the wall attaching device is connected and fixed to the guide frame 50;
s3: loosening the connection between the wall attaching device and the frame body 40 and the connection between the wall attaching device and the poured floor slab 20 are released, so that the frame body 40 is lifted by a height h, as shown in fig. 3 and 4, after the frame body 40 is lifted in place, one end of the wall attaching device is connected with the poured floor slab 20 of the ultra-high conjoined group tower outer frame structure, the other end of the wall attaching device is connected and fixed with a guide frame 50, a protective net 9, a protective net 10, a protective net 13, a pavement slab 5 and a pavement slab 6 which are not in conflict with the first overhanging bracket 22 and the second overhanging bracket 24 in the frame body 40 are restored, a safety fence is adjusted, and a safety dense net is stretched at the first overhanging bracket 22 and the second overhanging bracket 24 for temporary sealing, so that the (n+1) lifting of the frame body 40 is completed;
s4: after the construction of the nth layer structure of the outer frame structure of the ultra-high conjoined group tower is completed, as shown in fig. 5 and 6, removing the transverse members interfering with the second overhanging bracket 24 in the horizontal aspect of the frame body 40 from top to bottom, namely removing the pavement plate 5 and the pavement plate 6, removing the pavement plate 2 interfering with the first overhanging bracket 22, the pavement plate 3, the corresponding single horizontal truss and the like, removing the frame body 40 to the bottom of the first overhanging bracket 22 after quasi-n+2 lifting in the vertical direction, namely removing the protective mesh 2-protective mesh 6, the protective mesh 9 and the protective mesh 10, and connecting and fixing the frame body 40 with the poured floor slab 20 of the outer frame structure of the ultra-high conjoined group tower through the wall attaching device, recovering the protective mesh 4, the protective mesh 5, the protective mesh 9-protective 12 and the pavement plate 5-the pavement plate 7 which do not collide with the first overhanging bracket 22 and the second overhanging bracket 24, and adjusting the protective mesh 9-protective mesh 10 in the frame body 40 to be in the vertical direction, and setting the protective mesh 2-N and the protective mesh 10 to be equal to the n+1 in the first overhanging bracket and the second overhanging bracket;
s5: after the construction of the n+1 layer structure of the outer frame structure of the ultra-high conjoined group tower is completed, as shown in fig. 9 and 10, the frame body 40 is disassembled to the bottom of the first overhanging bracket 22 after the n+3 lifting times, namely, the protective net sheet 1, the protective net sheet 4 and the protective net sheet 5 are disassembled, as shown in fig. 11 and 12, after the frame body 40 is lifted in place, the frame body 40 is fixedly connected with the poured floor slab 20 of the outer frame structure of the ultra-high conjoined group tower through a wall attaching device, the net sheet 1, the net sheet 5-net sheet 8 which are not in conflict with the second overhanging bracket 24 in the frame body 40, the pavement slab 1, the pavement slab 3 and the pavement slab 4 are restored, safety surrounding is adjusted, the tensioning safety dense net at the second overhanging bracket 24 is temporarily sealed, and the n+3 lifting times of the frame body 40 are completed, and at this time, the frame body 40 passes over the first overhanging bracket 22;
s6: as shown in fig. 13 and 14, the frame body 40 is disassembled to the n+4 lifting, and then passes over the second overhanging bracket 24, namely, the protective net sheet 1 and the pavement slab 1 are disassembled, as shown in fig. 15 and 16, after the frame body 40 is lifted in place, the frame body 40 is fixedly connected with the poured floor slab 20 of the ultra-high conjoined group tower outer frame structure through a wall attaching device, the protective net sheet 1-protective net sheet 4 of the frame body 40 and the pavement slab 1 and the pavement slab 2 are restored, and the n+4 lifting of the frame body 40 and the passing over the second overhanging bracket 24 are completed, so that the subsequent construction is implemented.
According to the construction method of the outer frame structure of the ultra-high conjoined group tower, firstly, the arrangement and design of the construction device of the outer frame structure of the ultra-high Lian Tiqun tower are reasonably optimized by combining the horizontal vertical surface distribution and the size of the outer frame structure of the ultra-high conjoined group tower, the components which collide with the outer frame structure in the range of one-time lifting height of the frame body 40 are removed in advance, after the frame body 40 is lifted in place, the components of the frame body 40 are restored and the construction of the current Nth layer of the outer frame structure is implemented, and the construction is repeated until the frame body 40 passes over the outer frame structure; as can be seen, the construction method implements local orderly dismantling and repairing of the part of the frame body 40, which is in conflict with the overhanging component, and stably connects the frame body 40 to the poured floor slab 20 of the outer frame structure by adding the detachable wall attaching device, so that the frame body 40 can safely avoid the overhanging component, ensure the structural integrity of the frame body 40, safely and efficiently pass over the overhanging component while realizing the integral lifting of the frame body 40, and compared with the traditional lifting scaffold, the construction method greatly shortens the lifting time of the frame body 40, improves the work efficiency by more than 40%, and solves the problems of low construction efficiency, high construction risk and the like in the traditional lifting scaffold construction; in addition, the frame body is orderly dismantled and timely supplemented in the implementation process, so that the frame body 40 is always kept in a closed state, the safety of the frame body 40 and constructors can be ensured, and the feasibility and the safety of the construction of the ultra-high conjoined group tower outer frame structure are improved.
In step S2, as shown in fig. 17, the outer side of the dismantling area of the frame body 40 is reinforced, a plurality of transverse connection rods 42 are additionally arranged between two adjacent vertical rod members 41 which are close to the dismantling area and are arranged along the width direction of the pavement slab, the connection strength of the two vertical rod members 41 is enhanced, the two adjacent vertical rod members 41 which are arranged along the length direction of the pavement slab are reinforced through a plurality of diagonal braces 43, and the transverse connection rods 42 and the diagonal braces 43 are connected with the frame body 40 through bolts, so that the disassembly is convenient.
Step S2 further includes, before the lifting of the frame body 40, calculating the installation height of the wall attaching device and fixing the wall attaching device on the poured floor slab 20, where the installation height of the wall attaching device should be smaller than the maximum cantilever height of the frame body 40, lifting the frame body 40 to the height of the wall attaching device, temporarily stopping the frame body after the lifting, so that the positioning clamp 81 of the wall attaching device is clamped to the guide frame 50 without tightening the fastening bolt 82, continuing to lift the frame body 40 to the designed height, and tightening the fastening bolt 82 to fix the wall attaching device and the guide frame 50, so that the frame body 40 is stably supported on the poured floor slab 20 of the ultra-high conjoined group tower outer frame structure.
Step S2 further includes, as shown in fig. 17, to ensure that the frame body 40 is reliably attached to the poured floor slab 20 of the outer frame structure of the ultra-high conjoined tower, when the frame body 40 passes through the overhanging elements, it is necessary to ensure that the frame body 40 after the elements are partially removed is connected to at least 2 wall-attaching devices in the horizontal direction.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure are intended to fall within the scope of the claims.
Claims (4)
1. The utility model provides a construction equipment of super high disjunctor crowd tower frame structure which characterized in that includes:
the frame body is enclosed on the outer side of the outer frame structure of the ultra-high conjoined group tower, and is formed by interconnecting a plurality of vertical rods, cross rods and inclined rods and provided with a plurality of layers of pavement plates;
the guide frames are vertically fixed on the inner side of the frame body; the guide frame includes: a pair of parallel and spaced positioning guide rails which are fixedly connected into a whole through a plurality of connecting rods I vertically arranged between the two; one side of the connecting rod is fixedly connected with the frame body; the connecting truss is arranged between the positioning guide rail and the connecting rod, the connecting truss is of a space structure which is composed of a plurality of connecting rods II and provided with triangular units, one side of the connecting truss is fixedly connected with the connecting rod, and the other side of the connecting truss is vertically fixedly connected with the middle part of the connecting rod I;
one end of each wall-attached device is detachably connected with the poured floor slab of the ultra-high conjoined group tower outer frame structure, and the other end of each wall-attached device is detachably connected with the guide frame;
an outer protection net mounted on the outer side of the frame body;
the wall-attached device comprises: the system comprises a pair of support frames which are detachably connected with a steel beam of a structure below the poured floor slab and are arranged at intervals, a pair of bases which are connected with the support frames and can vertically slide along the support frames, and a pair of guide seats which are respectively connected with the bases; the support frame is a triangular frame body formed by fixedly connecting a plurality of transverse rods, vertical rods and inclined rods, the other end of each transverse rod is connected with the structural steel beam, a chute is formed in one side, away from the structural steel beam, of each vertical rod, a roller group and a plurality of bolt holes are formed in one side of the base, the roller group can be clamped in the chute of each vertical rod and can vertically slide along the chute, and after the vertical position of the base is adjusted to be in place, positioning bolts penetrate through the bolt holes and are screwed up so that the base is fixed on the support frame; the guide seat comprises a positioning clamping piece, two ends of the positioning clamping piece in the horizontal direction are provided with a pair of clamping grooves with shapes corresponding to the cross sections of a pair of positioning guide rails, so that the positioning clamping piece can be buckled on the pair of positioning guide rails, the middle part of the positioning clamping piece is provided with a bolt hole, and a fastening bolt penetrates through the positioning clamping piece and is in threaded connection with the base;
the support frame further comprises a plurality of first transverse rod pieces, the first transverse rod pieces are arranged at the bottom of the wing plate at the bottom of the structural steel beam, the first transverse rod pieces are arranged at the top of the wing plate at the bottom of the structural steel beam, and the edges of the first transverse rod pieces are connected through a plurality of bolts;
the inner side of the clamping groove of the positioning clamping piece is also provided with a plurality of rotating wheels, the rotating wheels are uniformly distributed on two sides of the positioning guide rail, and the rotating wheels are propped against the outer wall of the positioning guide rail;
the guide seat also comprises a reinforcing member arranged between the positioning clamping piece and the base, the reinforcing member is provided with a U-shaped cross section, bolt holes matched with the fastening bolts are formed in two side walls of the reinforcing member, and the fastening bolts penetrate through the positioning clamping piece and the reinforcing member to be connected with the base through bolts.
2. The construction device of the ultra-high conjoined group tower outer frame structure according to claim 1, wherein: the distance between two adjacent wall attaching devices in the vertical direction is not more than 3.6m, and the distance between two adjacent wall attaching devices in the horizontal direction is not more than 5m.
3. The construction method of the construction device of the ultra-high conjoined group tower outer frame structure according to claim 1 or 2, wherein the steps are as follows:
s1: installing a construction device of the ultra-high conjoined group tower outer frame structure outside the ultra-high conjoined group tower outer frame structure to be constructed, and lifting the frame body for the nth time and then positioning the frame body at the bottom of an overhanging component of the ultra-high conjoined group tower outer frame structure;
s2: the method comprises the steps of removing a member on a frame body, which is in conflict with an overhanging member, in advance, wherein the height of a removing area is the primary lifting height h of the frame body, fixing a wall attaching device on a poured floor before the frame body is lifted, temporarily stopping after lifting the frame body to the height of the wall attaching device, enabling a positioning clamping piece of the wall attaching device to be clamped on a guide frame, continuously lifting the frame body to a designed height for positioning, tightening a fastening bolt to fix the wall attaching device and the guide frame, enabling the frame body to be supported on the poured floor of the ultra-high conjoined group tower outer frame structure, recovering a member in the frame body, which is not in conflict with the overhanging member, adjusting a safety fence, stretching a safety mesh net at the overhanging member for temporary sealing, finishing the n+1th lifting of the frame body, and constructing an N layer of the ultra-high conjoined group tower outer frame structure;
s3: and after the construction of the Nth layer structure of the outer frame structure of the ultra-high conjoined group tower is completed, repeating the step S2 until the frame body passes over the overhanging component, and constructing each structural layer where the overhanging component is positioned layer by layer, wherein N and N are integers which are greater than or equal to 1.
4. The construction method of the construction device for the ultra-high conjoined group tower outer frame structure according to claim 3, wherein the construction method comprises the steps of: in step S2, consolidate the removal area outside of support body main part, be close to the removal area and along two adjacent two that the pavement slab width direction set up add many transverse connection pole between the vertical member consolidates, be close to the removal area and along pavement slab length direction set up two adjacent two consolidate through many bracing between the vertical member, transverse connection pole the bracing all with support body bolted connection.
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| CN109356379A (en) * | 2018-11-21 | 2019-02-19 | 北京市建筑工程研究院有限责任公司 | A kind of rail brackets of jumping formwork |
| CN112502474B (en) * | 2020-11-27 | 2022-07-19 | 上海建工五建集团有限公司 | Dismantling device and method for indoor large-scale steel framework |
| CN114908958B (en) * | 2022-05-07 | 2023-12-08 | 中建八局第二建设有限公司 | Climbing frame attaching method |
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