CN107035037B - Tower top curtain wall frame and mounting method thereof - Google Patents
Tower top curtain wall frame and mounting method thereof Download PDFInfo
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- CN107035037B CN107035037B CN201710453440.6A CN201710453440A CN107035037B CN 107035037 B CN107035037 B CN 107035037B CN 201710453440 A CN201710453440 A CN 201710453440A CN 107035037 B CN107035037 B CN 107035037B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F19/00—Other details of constructional parts for finishing work on buildings
- E04F19/02—Borders; Finishing strips, e.g. beadings; Light coves
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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Abstract
The invention discloses a tower top layer curtain wall frame and an installation method thereof, wherein the curtain wall frame comprises a roof steel truss, an EPS (expandable polystyrene) decorative line hanging bracket and a curtain wall hanging bracket, wherein the roof steel truss is close to a parapet wall, and the length direction of the roof steel truss is parallel to the parapet wall; the EPS decorative line hanging support comprises three groups of parallel EPS decorative line hanging beams which are arranged from top to bottom, each group of EPS decorative line hanging beams is three and is in a U shape connected end to end, and the three EPS decorative line hanging beams in each group are respectively fixed with the front side, the left side and the right side of the upper part of the roof steel truss; curtain suspended support sets up in roofing steel truss front side and lies in EPS moulding suspended support below, and curtain suspended support sets up and the front portion surpasss the parapet outer wall along the parapet. The curtain wall frame has high strength, good stability and attractive appearance, and is convenient for curtain wall installation and later maintenance; the installation method solves the installation problem of the curtain wall frame at the top layer of the tower under the environment with limited hoisting conditions.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a tower top layer curtain wall frame and an installation method thereof.
Background
The curtain wall is the outer wall enclosure of the building, does not bear the weight, hangs like a curtain, so is also called as a curtain wall, and is a light wall with decorative effect commonly used by modern large-scale and high-rise buildings. The curtain wall is composed of a panel and a supporting structure system, can have certain displacement capacity or certain deformation capacity relative to a main structure, and does not bear the external protective structure or decorative structure of the building acted by the main structure (an external wall frame type supporting system is also one type of the curtain wall system).
After the construction of the tower main structure is completed, the curtain wall of the lower part of the outer vertical surface of the tower is basically completed, and under the condition that the construction tower crane and the construction elevator are detached, the residual steel structure engineering can not be hoisted by the original tower crane, and the components can not be vertically transported by the construction elevator. The curtain at tower top portion need be installed from the top down this moment, and when the curtain was under construction, need set up the hanging flower basket support at tower top portion and fix the hanging flower basket, and the hanging flower basket hangs on the hanging flower basket support through wire rope, and the hanging flower basket can be gone up and down along with the operation requirement, and the hanging flower basket support should be simple and easy practical, and most designs by oneself according to engineering characteristics. In the prior art, when a curtain wall is fixed near a parapet wall at the top of a tower, a curtain wall frame needs to be arranged at the top of the tower, and the prior curtain wall frames have the problems of low strength, unstable fixation and poor appearance; need set up special hanging flower basket support when tower top installation curtain wall frame and come the curtain of supplementary installation here, receive the restriction in place during current hanging flower basket support mounting, the situation of installation of being not convenient for takes place for many times, and current hanging flower basket support need all demolish after the curtain construction finishes, need erect the hanging flower basket support again during later maintenance, and it is inconvenient to maintain.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a tower top curtain wall frame and an installation method thereof.
In order to realize the purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, a tower top layer curtain wall frame comprises a roof steel truss, an EPS decorative line hanging support and a curtain wall hanging support; the roof steel truss is close to the parapet wall, and the length direction of the roof steel truss is parallel to the parapet wall; the roof steel truss is of a cuboid structure and comprises upright posts, horizontal rods and diagonal web members, wherein the upright posts are arranged in two rows in parallel along the trend of the parapet wall, the number of the upright posts in each row is equal, the distance between two adjacent upright posts in each row of the upright posts is equal, and four upright posts at two ends of the two rows of the upright posts form four vertical edges of the roof steel truss; the lower ends of the upright posts are fixedly connected with a roof, the horizontal rods comprise first horizontal rods and second horizontal rods, the first horizontal rods are arranged between two adjacent upright posts on the front and back sides of the roof steel truss along the length direction of the roof steel truss, and a plurality of horizontal rods are uniformly arranged between the two adjacent upright posts from top to bottom; the second horizontal rods are arranged between the two adjacent vertical columns along the width direction of the roof steel truss and are positioned at the upper end of the roof steel truss; the inclined web members are arranged between the two adjacent vertical columns along the width direction of the roof steel truss, a plurality of inclined web members are uniformly arranged between the two adjacent vertical columns from top to bottom and are all positioned below the second horizontal rod, two adjacent inclined web members between the two adjacent vertical columns in the front-back direction of the roof steel truss form a V shape, and the opening direction of the V shape is the front-back direction of the roof steel truss; the EPS decorative line hanging support comprises EPS decorative line hanging beams, the EPS decorative line hanging beams are arranged into three groups which are parallel to each other from top to bottom, each group of EPS decorative line hanging beams is three and is in a U shape connected end to end, and the three EPS decorative line hanging beams in each group are respectively fixed with the front side, the left side and the right side of the upper part of the roof steel truss; curtain suspended support sets up in roofing steel truss front side and lies in EPS moulding suspended support below, and curtain suspended support sets up and the front portion surpasss the parapet outer wall along the parapet.
Roofing steel truss in this support adopts multiple shaped steel combination welding to form, has intensity height, the good advantage of stability, the fixed EPS moulding on front side, left side and the right side on roofing steel truss upper portion, whole appearance elegant appearance, when installation and maintenance curtain, set up bearing structure as the supporting component of jib above the second horizon bar along roofing steel truss length direction, it is all comparatively convenient to install and overhaul.
Furthermore, the EPS decorative line suspension bracket also comprises third horizontal rods, and each EPS decorative line suspension beam is fixed with the roof steel truss through the third horizontal rods; every EPS moulding hangs the place that the crossbeam corresponds with roofing steel truss stand and all is provided with the third horizon bar, and every third horizon bar rear end is fixed with the stand and the front end is fixed with EPS moulding hangs the crossbeam.
Furthermore, the curtain wall suspension bracket comprises fourth horizontal rods and curtain wall suspension cross beams, the number of the fourth horizontal rods is the same as that of the stand columns in each row, the fourth horizontal rods are in one-to-one correspondence, each fourth horizontal rod is arranged along the front-back direction of the roof steel truss, the rear ends of the fourth horizontal rods are fixed with the stand columns at corresponding positions, an inclined strut of a reinforcing structure is arranged on the lower side of each fourth horizontal rod, the upper end of each inclined strut is fixed with the middle part of the corresponding fourth horizontal rod, and the lower end of each inclined strut is fixed with the corresponding stand column; the curtain wall suspension cross beam is parallel to the length direction of the roof steel truss and is fixed with the front ends of all the fourth horizontal rods.
Furthermore, the upright post adopts H-shaped steel.
Furthermore, the first horizontal rod adopts a steel pipe.
Furthermore, the inclined web members, the second horizontal rods, the third horizontal rods, the fourth horizontal rods, the EPS decorative line hanging beam and the curtain wall hanging beam are all made of channel steel.
In a second aspect, a method for installing a curtain wall frame on the top of a tower includes the following steps:
the method comprises the following steps: preparing materials; when each section of steel member of the curtain wall frame is produced by a manufacturer, the steel member is manufactured according to the size of a drawing and the process requirement in a sectional setting and is numbered, and the length of each section of the segmented steel member does not exceed 2.2m; and reserving welding shrinkage and machining allowances required by cutting, end face milling and the like during lofting, wherein the segmented sections of different columns are staggered up and down so as to avoid that all sections are positioned on one elevation to increase the stability of the columns. And reserving margins of 30-50mm in the length direction of each steel member, and staggering the sectional surfaces of different upright posts up and down by 200mm. The tower is higher (about 100m high), steel construction engineering all is located the roof region, because tower major structure has been accomplished, the regional curtain of outer facade lower part commercial skirt room of tower is accomplished basically, construction tower crane and construction elevator have been demolishd, each steel member can't adopt former tower to hang hoist, also can't adopt construction elevator to carry out vertical transportation, therefore the construction degree of difficulty is great, can't adopt conventional scheme construction, according to on-the-spot and engineering characteristics, limited by on-the-spot hoist and mount condition, the steel construction adopts the segmentation of factory of manufacture to make on-the-spot concatenation, adopt the indoor elevator that has operated to carry out vertical transportation, every section of component adopts the manual work to transport to the elevator that has operated, according to the high restriction of elevator, every section length of steel member is no longer than 2.2m.
Step two: the steel members are vertically transferred from the ground to the top roof of the tower; and each section of steel member is manually transported to the operated indoor elevator, is transported to the highest floor where the elevator can reach by the operated indoor elevator, and is transported to the top roof of the tower by the manual operation.
Step three: horizontally transferring the steel members on the roof of the top layer of the tower; and transferring each steel member to the position near the corresponding installation position by using two flatcars according to the number of the steel member, wherein channel steel with an upward opening is arranged below the flatcars to serve as a track, and wheels of the flatcars are positioned in open grooves of the track and run along the track. Before transferring, the age and the bearing capacity of the top layer roof structure floor slab of the tower are confirmed, and the transfer can be carried out when the age and the bearing capacity of the top layer roof structure floor slab of the tower meet the requirements; in all areas where the construction transfer channel passes, if the top roof of the tower is constructed, protective measures for the top roof of the tower must be taken, and dragging on the constructed ground is forbidden, so that the contact area between the wheels and the top roof of the tower can be increased by adopting a channel steel rail, and the top roof of the tower is prevented from being damaged.
Step four: installing a lantern frame; two sets of chain blocks are arranged at the upper part of the lantern frame, and universal wheels are arranged at the bottom of the lantern frame; in the construction process, the heavier steel member needs to be lifted by the lantern frame to move. All components of the lantern frame are connected through bolts and are transported to an installation roof through an indoor elevator; each side of lantern frame respectively installs a cable wind rope, the stability of lantern frame when guaranteeing to promote the steel member, and cable wind rope upper end and lantern frame adopt the otic placode to be connected, and the lower extreme can adopt the chemistry crab-bolt to be connected with the concrete roof. Four column bases of the lantern frame are provided with universal wheels and universal wheel locking structures, and the maximum weight of the steel member hoisted by the lantern frame is about 1 t. Because the lantern frame is located the roof eminence, in the construction process, the lantern frame need promote the converting position, for the safety, additional column base counter weight makes the counter weight strength of whole lantern frame rearmounted to weight evenly distributed when hoist and mount steel member prevents to topple.
Step five: assembling, splicing and welding steel components; after all steel components of the curtain wall frame are transferred to the installation position, firstly, the curtain wall frame is assembled, two adjacent stand columns in the width direction (arranged in the front and back direction) of the curtain wall frame, a second horizontal rod and an inclined web member between the two stand columns form a group and form a steel truss, all steel components of the steel truss are assembled and then adopt two self-made flat cars as splicing and welding platforms, and during splicing, a chain block of a lantern frame is adopted to lift and move heavier steel components. The local fine adjustment of the joint position is carried out through a jack and a turnbuckle, the welding platform is measured by a level and a theodolite, and the precision is controlled within 3 mm; when the steel members are combined, firstly, position lines of all nodes are drawn, and welding shrinkage of 1mm to 2mm is reserved for each node.
Step six: hoisting a steel member; after the steel members of one steel truss are assembled, spliced and welded, the whole steel truss is moved to the position right above the position to be installed by using the lantern frame, the steel truss is lifted and installed through a chain block arranged on the lantern frame, and the lower ends of two stand columns of the steel truss are respectively welded with the base. When the steel truss is hoisted, 2-t chain blocks are adopted to simultaneously lift one steel truss, and when the one steel truss is completely erected, the one steel truss and the lantern frame are fixed together. Because one steel truss is laid horizontally before being hoisted, a chain block is required to lift and turn over when one steel truss is hoisted, and the friction force during hoisting is reduced by the movement of a flat car in the process of hoisting one steel truss. When a steel truss is installed, loosening a cable rope at each section of the periphery of the lantern frame (not paying attention to complete loosening), then slowly moving the lantern frame to a position right above the installation position, loosening the 2t chain block to enable the lower ends of the two upright posts to be in place, after the lower ends of the two upright posts are in place, fixing the lower ends of the upright posts and the base through spot welding, symmetrically welding the periphery, fixing two sides of one steel truss through the cable ropes after welding is finished, and finally completely loosening the chain block to install the next steel truss.
Step seven: installing a first horizontal rod, and brushing paint after correction on an EPS decorative line hanging beam and a curtain wall hanging beam.
Step eight: and installing a hanging basket and constructing a curtain wall at the top of the tower by adopting the hanging basket.
Step nine: EPS lines are arranged on the front, the left and the right of the upper part of the roof steel truss.
Step ten: and (4) dismantling the hanging basket.
Compared with the prior art, the invention has the following beneficial effects:
1. the roof steel truss in the curtain wall frame is formed by welding a plurality of profile steels in a combined manner, has the advantages of high strength and good stability, and EPS decorative lines are fixed on the front side, the left side and the right side of the upper part of the roof steel truss, so that the overall appearance is attractive and elegant; the roof steel truss serving as the main structure in the curtain wall frame is not dismantled after being used and is continuously used as the curtain wall frame, the roof steel truss can be used during later maintenance, and the later maintenance is convenient;
2. the curtain wall suspension bracket is fixed on the roof steel truss frame, so that the structure is stable, and the installation and maintenance are convenient;
3. the construction method solves the construction problem of the large-scale curtain wall frame on the top layer of the tower building by using limited equipment on the premise of not damaging the roof.
Drawings
Fig. 1 is a schematic structural view of a tower top curtain wall frame according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a flatcar configuration;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is an exploded view of a steel truss;
FIG. 6 is a schematic structural view of a lantern frame for hoisting a steel truss;
fig. 7 is a left side view of fig. 6.
In the attached drawings, 1-a roof steel truss; 2-EPS decorative line hanging bracket; 3-curtain wall hanging bracket; 4-curtain wall; 5, roofing; 6-parapet wall; 7-EPS decorative lines; 8-flatcar; 9-lantern shelf;
11-upright post; 12-a first horizontal bar; 13-a second horizontal bar; 14-diagonal web members; 21-EPS moulding hangs the crossbeam; 22-a third horizontal bar; 31-curtain wall hanging beam; 32-a fourth horizontal bar; 33-diagonal bracing; 51-a base; 81-joist; 82-connecting beams; 83-a wheel; 91-guy rope; 92-a counterweight; 93-chain block; 94-one steel truss.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 and 2, the tower top curtain wall frame of the embodiment includes a roof steel truss 1, an EPS decorative line hanging bracket 2 and a curtain wall hanging bracket 3; the roof steel truss 1 is close to the parapet 6 and the length direction is parallel to the parapet 6.
In this embodiment, the parapet moves towards the length direction of the roof steel truss 1, the front-back direction is the width direction of the roof steel truss 1, and the roof steel truss 1 just faces the parapet 6 side and is the dead ahead.
As shown in fig. 1 and 2, the roof steel truss 1 is a rectangular structure, the roof steel truss 1 includes upright columns 11, first horizontal rods 12, second horizontal rods 13 and diagonal web members 14, the upright columns 11 are arranged in two rows in parallel along the direction of the parapet 6, the number of the upright columns 11 in each row is equal, the distance between two adjacent upright columns 11 in each row of upright columns 11 is equal, and four upright columns 11 at two ends of the two rows of upright columns 11 form four vertical edges of the roof steel truss 1; the lower ends of the upright columns 11 are fixedly connected with the roof 5, the first horizontal rods 12 are arranged between two adjacent upright columns 11 on the front and back sides of the roof steel truss 1 along the length direction of the roof steel truss 1, and a plurality of first horizontal rods are uniformly arranged between the two adjacent upright columns 11 from top to bottom; the second horizontal rods 13 are arranged between two adjacent vertical columns 11 along the width direction of the roof steel truss 1 and are positioned at the upper end of the roof steel truss 1; oblique web member 14 sets up between adjacent coexistence post 11 and from last down evenly being provided with a plurality of roots and all being located second horizon bar 13 below between adjacent coexistence post 11 along 1 width direction of roofing steel truss, and two adjacent oblique web members 14 constitute the V font between 1 fore-and-aft direction adjacent coexistence post 11 of roofing steel truss, V font opening direction is the fore-and-aft direction of roofing steel truss 1.
As shown in fig. 1 and 2, the EPS decorative molding hanging bracket 2 includes EPS decorative molding hanging beams 21 and a third horizontal rod 22, the EPS decorative molding hanging beams 21 are arranged into three groups parallel to each other from top to bottom, and each group of EPS decorative molding hanging beams 21 is three and is in a U-shape connected end to end; the three EPS moulding hanging beams 21 in each group are respectively fixed with the front side, the left side and the right side of the upper part of the roof steel truss 1 through third horizontal rods 22. Specifically, a third horizontal rod 22 is arranged at a position corresponding to each EPS decorative line hanging beam 21 and the upright 11 of the roof steel truss 1, the rear end of each third horizontal rod 22 is fixed to the upright 11, and the front end of each third horizontal rod is fixed to the EPS decorative line hanging beam 21.
As shown in fig. 1 and 2, the curtain wall hanging bracket 3 is arranged at the front side of the roof steel truss 1 and below the EPS decorative line hanging bracket 2, the curtain wall hanging bracket 3 is arranged along the parapet wall 6, and the front part of the curtain wall hanging bracket exceeds the outer wall of the parapet wall 6. The curtain wall suspension bracket 3 comprises fourth horizontal rods 32 and curtain wall suspension cross beams 31, the number of the fourth horizontal rods 32 is the same as that of the upright columns 11 in each row and corresponds to one another, each fourth horizontal rod 32 is arranged along the front-back direction of the roof steel truss 1, the rear ends of the fourth horizontal rods 32 are fixed with the upright columns 11 at corresponding positions, an inclined strut 33 of a reinforcing structure is arranged at the lower side of each fourth horizontal rod 32, the upper end of each inclined strut 33 is fixed with the middle part of the corresponding fourth horizontal rod 32, and the lower end of each inclined strut 33 is fixed with the corresponding upright column 11; the curtain wall suspension cross beam 31 is parallel to the length direction of the roof steel truss 1 and is fixed with the front ends of all the fourth horizontal rods 32.
As shown in fig. 1 and fig. 2, in this embodiment, the upright 11 is made of H-shaped steel, the first horizontal rod 12 is made of steel pipe, and the diagonal web member 14, the second horizontal rod 13, the third horizontal rod 22, the fourth horizontal rod 32, the EPS molding hanging beam 21, and the curtain wall hanging beam 31 are made of channel steel. 11 lower extremes of stand and base welded connection, roofing steel truss 1 in this support adopts multiple shaped steel combination welding to form, and it is high to have intensity, the advantage that stability is good, the front side on 1 upper portion of roofing steel truss, left side and the fixed EPS moulding 7 in right side, whole appearance elegant appearance, when installation and later maintenance curtain, set up the stay member of bearing structure as the jib in second horizon bar 13 top along 1 length direction of roofing steel truss, and installation and later maintenance are all comparatively convenient.
As shown in fig. 1 to 7, a method for installing a curtain wall frame on the top floor of a tower includes the following steps:
step S1: preparing materials, namely manufacturing and numbering each section of steel member of the curtain wall frame in a manufacturing plant according to the size of a drawing and technological requirements in a sectional manner, wherein the length of each section of the steel member after the section is not more than 2.2m; welding shrinkage and cutting, end face milling and other required machining allowances are reserved during lofting, wherein the up-and-down dislocation of the segmented sections of different columns 11 is 200mm so as to avoid that all the sections are positioned at one elevation to increase the stability of the columns 11. And reserving a margin of 30 to 50mm in the length direction of each steel member. The tower is higher (about 100m high), steel construction engineering all is located the roof region, because tower major structure has been accomplished, the regional curtain of outer facade lower part of tower is accomplished basically, construction tower crane and construction elevator have been demolishd, each steel member can't adopt former tower to hang hoist, also can't adopt construction elevator to carry out vertical transportation, therefore the construction degree of difficulty is great, can't adopt conventional scheme construction, according to scene and engineering characteristics, limited by on-the-spot hoist and mount condition, the steel construction adopts the segmentation of factory of manufacture field concatenation, adopt the indoor elevator of having operated to carry out vertical transportation, every section of component adopts the manual work to transport to the elevator of having operated, according to the high restriction of elevator, every section length of steel member is no longer than 2.2m.
Step S2: the steel members are vertically transferred from the ground to the roof level. And each section of steel member is manually transported to the operated indoor elevator, and the operated indoor elevator is transported to the highest floor where the elevator can reach and then is manually transported to the construction roof.
And step S3: horizontally transferring the steel members on the roof of the top layer of the tower; two platform cars 8 are used according to the steel member serial number and are transported near corresponding mounted position with each steel member, and platform car 8 is including setting up two joists 81 on left and right sides, and a plurality of tie-beams 82 that evenly set up are connected through in the past backward to the inboard of two joists 81, and the downside of every joists 81 is provided with two wheels 83 along the fore-and-aft direction. A 16a channel steel with an upward opening is arranged below the flatcar 8 and serves as a track, and wheels of the flatcar 8 are located in an opening groove of the track and move along the track; before transferring, the age and the bearing capacity of the floor slab of the top roof structure of the tower are confirmed, and the floor slab of the top roof structure of the tower can be transferred when the age and the bearing capacity meet the requirements; in all areas where the construction transfer channel passes, if the top roof of the tower is constructed, protective measures for the top roof of the tower must be taken, and dragging on the constructed ground is forbidden, so that the contact area between the wheels and the top roof of the tower can be increased by adopting a channel steel rail, and the top roof of the tower is prevented from being damaged.
And step S4: installing a lantern frame 9; as shown in fig. 6 and 7, two sets of chain blocks 93 are arranged at the upper part of the lantern frame 9, and universal wheels are arranged at the bottom; during construction, the heavier steel members need to be lifted by the lantern frame 9 to move. Each component of the lantern frame 9 is transported to an installation roof in advance through an indoor elevator and is connected through bolts; each side of lantern frame 9 respectively installs a cable rope 91, guarantees lantern frame 9's stability when promoting the steel member. The cable wind rope 91 is a phi 12 steel wire rope, the upper end of the cable wind rope is connected with the lantern frame 9 by an ear plate, and the lower end of the cable wind rope can be connected with the concrete roof 5 by 4 post phi 12 chemical anchor bolts. Four column feet of lantern frame 9 are provided with universal wheel and universal wheel locking structure, and the steel member maximum weight that adopts lantern frame 9 hoist and mount is about 1 t. Because the lantern frame 9 is located at the high position of the roof, the lantern frame 9 needs to be pushed to change positions in the construction process. For safety, the additional column foot counterweight 92 is 200kg counterweight 92 which is firstly evenly piled up around each column foot, then 200kg counterweight 92 is respectively added at the positions of the two subsequent column feet, when the counterweight 92 is placed, the four column feet are evenly and simultaneously symmetrically weighted to 200kg, and then the two subsequent columns are simultaneously symmetrically weighted to 400kg. Let the counter weight 92 strength rearmounted of whole lantern frame to weight evenly distributed when hoist and mount steel member prevents to topple.
Step S5: assembling, splicing and welding curtain wall frame steel components; after the steel components of the curtain wall frame are transferred to the installation position, the curtain wall frame is assembled, and two vertical columns 11 adjacent to each other in the width direction (arranged in the front-back direction) of the curtain wall frame, a second horizontal rod 13 and an inclined web member 14 between the two vertical columns 11 form a group to form a steel truss (as shown in fig. 5). As shown in fig. 3 and 4, after each steel member pair forming one steel truss is assembled, two self-made flat cars 8 are adopted as splicing and welding platforms, and during splicing, a heavy steel member is lifted and moved by a chain block 93 of a lantern frame 9. The local fine adjustment of the joint position is carried out through a jack and a turnbuckle, the welding platform is measured by a level and a theodolite, and the precision is controlled within 3 mm; when the steel members are combined, firstly, position lines of all nodes are drawn, and welding shrinkage of 1mm to 2mm is reserved for each node. The splicing position of the H-shaped steel (the upright post 11) adopts 2 reinforcing plates with the thickness of 8mm to clamp and reinforce the web plate; the splicing positions of the channel steels (the inclined web members 14, the second horizontal rods 13, the third horizontal rods 22, the fourth horizontal rods 32, the EPS decorative line hanging beam 21 and the curtain wall hanging beam 31) are reinforced by 1 reinforcing plate with the thickness of 8mm at a web plate.
Step S6: hoisting a steel member; after the steel members of a steel truss are assembled, spliced and welded, the whole steel truss is moved to a position right above the position to be installed by using the lantern frame 9, the steel truss is lifted and installed by a chain hoist 93 arranged on the lantern frame 9, and the lower ends of two upright posts 11 of the steel truss are respectively welded with the base 51. As shown in fig. 6 and 7, when the steel truss is hoisted, one steel truss 94 is hoisted at the same time by using 2t chain blocks, and when the steel truss 94 is completely erected, the one steel truss 94 and the lantern 9 are fixed together. Because one steel truss 94 is placed in a lying state before being hoisted, the chain block 93 needs to be hoisted to turn over when the one steel truss 94 is hoisted, and the friction force during hoisting is reduced by moving the flat wagon 8 in the process of hoisting the one steel truss 94. When one steel truss is installed, loosening a cable rope 91 at each periphery of the lamp cage 9 (not paying attention to complete loosening), then slowly moving the lamp cage 9 to a position right above the installation position of one steel truss 94, loosening a 2t hand chain block to enable one steel truss 94 to be in place, after two ends of one steel truss 94 are in place, fixing the lower end of the upright post 11 and the base by spot welding, symmetrically welding the periphery, fixing two sides of one steel truss 94 by using the cable rope after welding, and finally completely loosening the hand chain block to install the next steel truss.
Step S7: and installing the first horizontal rod 12, the EPS moulding hanging beam 21 and the curtain wall hanging beam 31, and painting after correction. The first horizontal rod 12 connects two adjacent vertical columns 11 along the length direction of the roof steel truss 1.
Step S8: and installing a hanging basket and constructing a curtain wall at the top of the tower by adopting the hanging basket.
Step S9: EPS lines 7 are arranged on the front, the left and the right of the upper part of the roof steel truss.
Step S10: and (5) dismantling the hanging basket.
The curtain wall frame has the advantages of high strength, good stability, attractive appearance, convenience in curtain wall installation and later maintenance and the like.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all the modifications or equivalent substitutions should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a tower top layer curtain wall frame which characterized in that: the roof steel truss type curtain wall decoration line hanging bracket comprises a roof steel truss, an EPS decoration line hanging bracket and a curtain wall hanging bracket;
the roof steel truss is close to the parapet wall, and the length direction of the roof steel truss is parallel to the parapet wall; the roof steel truss is of a cuboid structure and comprises upright columns, horizontal rods and diagonal web members, wherein the upright columns are arranged in two rows in parallel along the direction of the parapet wall, the number of the upright columns in each row is equal, the distance between two adjacent upright columns in each row of upright columns is equal, and four upright columns at two ends of the two rows of upright columns form four vertical edges of the roof steel truss; the lower ends of the upright columns are fixedly connected with a roof, the horizontal rods comprise first horizontal rods and second horizontal rods, the first horizontal rods are arranged between two adjacent upright columns on the front and back sides of the roof steel truss along the length direction of the roof steel truss, and a plurality of upright columns are uniformly arranged between the two adjacent upright columns from top to bottom; the second horizontal rods are arranged between the two adjacent vertical columns along the width direction of the roof steel truss and are positioned at the upper end of the roof steel truss; the inclined web members are arranged between two adjacent vertical columns along the width direction of the roof steel truss, a plurality of inclined web members are uniformly arranged between the two adjacent vertical columns from top to bottom and are all positioned below the second horizontal rod, two adjacent inclined web members between the two adjacent vertical columns in the front-back direction of the roof steel truss form a V shape, and the opening direction of the V shape is the front-back direction of the roof steel truss;
a supporting structure is arranged above the second horizontal rod along the length direction of the roof steel truss and is used as a supporting component of the suspender;
the EPS decorative line hanging support comprises EPS decorative line hanging beams, the EPS decorative line hanging beams are arranged into three groups which are parallel to each other from top to bottom, each group of EPS decorative line hanging beams is three and is in a U shape connected end to end, and the three EPS decorative line hanging beams in each group are respectively fixed with the front side, the left side and the right side of the upper part of the roof steel truss;
curtain wall suspension bracket sets up in roofing steel truss front side and lies in EPS moulding suspension bracket below, and curtain wall suspension bracket sets up and anterior the exceeding parapet outer wall along the parapet.
2. The tower top curtain wall rack of claim 1, wherein: the EPS decorative line hanging bracket also comprises a third horizontal rod, and each EPS decorative line hanging beam is fixed with the roof steel truss through the third horizontal rod; every EPS moulding hangs the place that the crossbeam corresponds with roofing steel truss stand and all is provided with the third horizon bar, and every third horizon bar rear end is fixed with the stand and the front end is fixed with EPS moulding hangs the crossbeam.
3. The tower top curtain wall rack of claim 1 or 2, wherein: the curtain wall suspension support comprises fourth horizontal rods and curtain wall suspension cross beams, the number of the fourth horizontal rods is the same as that of the stand columns in each row, the fourth horizontal rods correspond to the stand columns in each row one by one, each fourth horizontal rod is arranged along the front-back direction of the steel roof truss, the rear end of each fourth horizontal rod is fixed with the stand column in the corresponding position, an inclined strut of a reinforcing structure is arranged on the lower side of each fourth horizontal rod, the upper end of each inclined strut is fixed with the middle part of the corresponding fourth horizontal rod, and the lower end of each inclined strut is fixed with the corresponding stand column; and the curtain wall hanging beam is parallel to the length direction of the roof steel truss and is fixed with the front ends of all the fourth horizontal rods.
4. The tower top curtain wall rack of claim 1, wherein: the upright posts are made of H-shaped steel.
5. The tower top curtain wall rack of claim 1, wherein: the first horizontal rod is made of a steel pipe.
6. The tower top curtain wall rack of claim 3, wherein: the inclined web members, the second horizontal rods, the third horizontal rods, the fourth horizontal rods, the EPS decorative line hanging beams and the curtain wall hanging beams are all made of channel steel.
7. A method for installing the curtain wall frame at the top of a tower, which is used for installing the curtain wall frame at the top of the tower, disclosed by any one of claims 1 to 6, comprises the following steps of:
the method comprises the following steps: preparing materials; when manufacturing each section of steel member of the curtain wall frame produced by a factory, carrying out sectional lofting manufacturing and numbering according to the size of a drawing and process requirements, wherein the length of each section of the segmented steel member is not more than 2.2m; reserving welding shrinkage and machining allowance required by cutting and end face milling during lofting, wherein the segmented sections of different columns are staggered up and down to avoid that all sections are at one elevation to increase the stability of the columns;
step two: the steel members are vertically transferred from the ground to the top roof of the tower; manually transporting each section of steel member to an operated indoor elevator, transporting the steel member to the highest floor where the elevator can reach by using the operated indoor elevator, and then manually transporting the steel member to the top roof of the tower;
step three: horizontally transferring the steel members on the top roof of the tower; transporting each steel member to the position near the corresponding installation position by using two flatcars according to the number of the steel member, wherein channel steel with an upward opening is arranged below the flatcars and is used as a track, and wheels of the flatcars are positioned in open grooves of the track and run along the track;
step four: installing a lantern frame; two sets of chain blocks are arranged at the upper part of the lantern frame, universal wheels are arranged at the bottom of the lantern frame, and a heavier steel member needs to be lifted by the lantern frame to move;
step five: assembling, splicing and welding steel components; after all steel component parts are transported to an installation position, firstly assembling, wherein two vertical columns adjacent in the width direction of the curtain wall frame and a second horizontal rod and a diagonal web member between the two vertical columns form a group to form a steel truss, after all the steel component parts are assembled, two self-made flatting cars are adopted as splicing and welding platforms, and during splicing, a heavy steel component is lifted and moved by a chain block of a lantern frame;
step six: hoisting a steel member; after assembling, splicing and welding of steel members of a steel truss, integrally moving the steel truss to the position to be installed by using a lantern frame, installing the steel truss through a chain block arranged on the lantern frame, and respectively welding and connecting the lower ends of two stand columns of the steel truss with a base;
step seven: installing a first horizontal rod, an EPS decorative line hanging beam and a curtain wall hanging beam, and painting after correction;
step eight: installing a hanging basket and constructing a curtain wall at the top of the tower by adopting the hanging basket;
step nine: installing EPS lines in the front, the left and the right of the upper part of the roof steel truss;
step ten: and (5) dismantling the hanging basket.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710453440.6A CN107035037B (en) | 2017-06-15 | 2017-06-15 | Tower top curtain wall frame and mounting method thereof |
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| CN201710453440.6A CN107035037B (en) | 2017-06-15 | 2017-06-15 | Tower top curtain wall frame and mounting method thereof |
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| CN107035037A CN107035037A (en) | 2017-08-11 |
| CN107035037B true CN107035037B (en) | 2022-10-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113059327A (en) * | 2021-04-07 | 2021-07-02 | 镇江金豪路桥配套工程有限公司 | Production process of Bailey sheet for assembled Bailey steel bridge |
| CN117486076B (en) * | 2023-10-20 | 2024-04-09 | 池州市天池建材实业有限公司 | Automatic packaging equipment for special curtain wall glass |
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