CN108867957B

CN108867957B - Curtain wall construction method

Info

Publication number: CN108867957B
Application number: CN201810641397.0A
Authority: CN
Inventors: 陈世杰; 张雪松
Original assignee: Zhejiang Dafeng Building Decoration Engineering Co Ltd
Current assignee: Zhejiang Dafeng Building Decoration Engineering Co Ltd
Priority date: 2018-06-21
Filing date: 2018-06-21
Publication date: 2020-03-31
Anticipated expiration: 2038-06-21
Also published as: CN108867957A

Abstract

The invention discloses a curtain wall construction method, relates to the technical field of building construction, and solves the problem that a glass unit is difficult to hoist if the glass unit is subjected to high-strength wind load in the current construction. The technical scheme is characterized by comprising the following steps: s1, measurement lofting: the main control line, the external control points and the external control line are elastically arranged; s2, mounting an inner connecting plate: constructing the steel lattice into inner frame units for arranging the glass units, and building a scaffold; s3, hoisting the glass curtain wall: the glass units are hoisted to the corresponding inner frame units to be assembled into the glass curtain wall, and the glass units and the inner frame units are provided with mutually matched clamping structures; s4, mounting an outer limit plate: manufacturing an aluminum plate into an outer limiting plate which is matched with the inner connecting plate to clamp and fix the glass curtain wall; s5, mounting curtain wall accessories; and S6, maintaining the curtain wall. The glass unit is accurately and quickly installed at the fixing position of the glass unit even if the construction of the super high-rise building is realized, so that the purpose of reducing the construction difficulty is achieved.

Description

Curtain wall construction method

Technical Field

The invention relates to the technical field of building construction, in particular to a curtain wall construction method.

Background

The building curtain wall is a building external enclosure structure integrating building technology, building functions and building art, is an advanced external decoration form of buildings at the present stage, and the main aim of curtain wall design is to create a building coat which realizes building concepts, explains building symbols, conveys era information and characteristics through decoration art and has certain functionality and safety. Elegance, harmony and fluency of large buildings are inevitable requirements of the public and cities, and the ornamental property of curtain walls is just the best carrier for realizing the requirements.

Along with the development of the society, the complexity of large-scale projects such as super-long and super-high structures is increased, the construction difficulty of curtain walls is increased, rework is often caused during actual construction, and the problems of long construction period, difficult quality control and the like are caused. Especially, when the engineering is a super high-rise building, the vibration displacement of the building is frequently influenced by wind load, and the glass unit in a hanging state is more inconvenient to install at a high place.

Disclosure of Invention

The invention aims to provide a curtain wall construction method, aiming at the construction of a super high-rise building, the influence of high wind load can be avoided, and a glass unit can be accurately and quickly installed on a fixed position of the glass unit, so that the construction difficulty is reduced.

The technical purpose of the invention is realized by the following technical scheme: a curtain wall construction method comprises the following steps:

s1, measurement lofting: cleaning embedded parts outside a building, setting a reference datum axis by utilizing curtain wall tolerance, rechecking the relation between datum point lines by a total station through a prism, and elastically setting a main control line, an external control point and an external control line;

s2, mounting an inner connecting plate: constructing the steel lattice into inner frame units for arranging the glass units, building a scaffold, and installing the inner frame units from corner positions of a building according to a dotted line marked in S1 to assemble the inner frame units into inner connecting plates;

s3, hoisting the glass curtain wall: the glass units are hoisted to the corresponding inner frame units by using a fixed cantilever/movable small crane to be assembled into a glass curtain wall, and the glass units and the inner frame units are provided with mutually matched clamping structures;

s4, mounting an outer limit plate: manufacturing an aluminum plate on a scaffold to be matched with the inner connecting plate so as to clamp and fix an outer limiting plate of the glass curtain wall, wherein a rotating gap for rotating the glass unit is formed between part of the outer limiting plate and the inner connecting plate;

s5, mounting curtain wall accessories: sun shading pieces are vertically arranged on two adjacent outer limiting plates in the S4, and the sun shading pieces are positioned at the splicing positions between two adjacent inner frame units;

s6, curtain wall maintenance: and (4) erecting safety protection sheds in sections, cleaning the curtain wall, and inspecting the connection firmness among all components of the curtain wall.

By adopting the technical scheme, in the method for constructing the curtain wall, the inner frame unit is arranged outside the building, the glass units are arranged by the inner frame unit, the glass units are preliminarily fixed by the clamping structure, the glass units are prevented from being loosened under the influence of wind load, and the glass units are clamped and fixed by the outer limiting plate and the inner connecting plate in a matching way, so that the glass units can be accurately and quickly arranged at the fixing positions of the glass units, and the construction difficulty is reduced; and a rotation gap is provided so that a part of the glass unit rotates to be used as a window; and then, the other steps in the construction method are followed to realize the integral installation of the curtain wall.

The invention is further provided with a connecting piece is installed on the outer side of the building along the marked outer control line in a threaded manner after the S1 is finished, the outer limiting plate in the S4 is provided with a plurality of inserting columns, and the inner frame unit in the S2 is provided with a first inserting hole for inserting the connecting piece and a second inserting hole for inserting the inserting columns; and after the outer limiting plate is installed in the S4, injecting concrete into the steel lattice of the inner frame unit at high pressure.

By adopting the technical scheme, the inner frame unit is formed by welding and enclosing a steel lattice, the steel lattice is a rectangular steel pipe with a hollow inner part, and the inner frame unit can be quickly positioned and installed outside the building by utilizing the matching of the connecting piece and the first jack and the matching of the inserting column and the second jack, and the outer limiting plate can be quickly positioned and installed on the inner frame unit; concrete is injected again, and the inserted columns and the connecting pieces are wrapped by concrete condensation, so that the connection firmness among the building, the inner connecting pieces and the outer limiting plates is increased.

The invention is further arranged in that a clamping beam is arranged on the glass unit in the S3, when the inner frame unit is manufactured in the S2, a clamping groove which is concave and is used for hanging the clamping beam is arranged on the upper side of the inner frame unit, and the clamping structure is formed by matching the clamping beam and the clamping groove.

Through adopting above-mentioned technical scheme, utilize the card roof beam to inlay the mode of establishing to the draw-in groove as joint structure, simple structure, and the cooperation required precision is low, the manufacturing of being convenient for.

The invention is further provided with a second strong magnetic block embedded in the clamping beam, and a first strong magnetic block attracted with the second strong magnetic block is embedded in the clamping groove.

Through adopting above-mentioned technical scheme, set up the strong magnetic block of first strong magnetic block and the second that attracts mutually, increase the firm in connection nature of joint structure department, and when the glass unit was hoisted and mount in inside casing unit department, utilize the magnetism that attracts mutually, the quick location fit of being convenient for reduces the construction degree of difficulty.

The invention is further provided in that the bottom of the clamping groove is provided with a rotary groove with an opening smaller than the inner diameter, and the end part of the clamping beam is provided with a rotary shaft pressed into the rotary groove so as to facilitate the rotation of the glass unit.

Through adopting above-mentioned technical scheme, set up turn trough and turn trough, through the circular arc orbit of both contacts, realize rotating the purpose of glass unit, avoid the glass unit as the window to need install the rotating-structure in addition to increase the service function of joint structure, and the cooperation between the joint structure of being convenient for damages draw-in groove or card roof beam because of the collision when avoiding installing.

The present invention is further configured such that after the inner connection plates are assembled in S2, an elastic buffer sheet is installed outside the inner connection plates.

Through adopting above-mentioned technical scheme, because of the glass unit is hoisted outside building, easily receive the influence of wind load and rock, especially when glass unit and interconnection connecting plate erection joint, rock glass unit and can lead to glass unit collision to interconnection connecting plate, set up the elastic ring towards the piece, glass unit is cracked when avoiding colliding, the security performance when improving the installation of glass unit.

The invention is further provided in that the outer limiting plate in S4 has a plurality of third insertion holes, and the sunshade in S5 has clamping posts inserted into the third insertion holes; and the step of installing the sun shielding sheet in the step S5 is that the clamping column of the sun shielding sheet is inserted into the third insertion hole in the outer limiting plate, and then the clamping plate is slidably installed on one side of the outer limiting plate, which is opposite to the sun shield, and the clamping plate is provided with a clamping hole for clamping the clamping column and a notch for allowing the clamping column to slide into the clamping hole.

Through adopting above-mentioned technical scheme, utilize the cooperation of card post and third jack to with the installation department of sunshade piece quick positioning on outer limiting plate, and utilize cardboard joint fixing clip post, through card hole and the cooperation of card post on the cardboard promptly, the deformation in the card hole of being convenient for is set up to the breach, thereby the restriction hides the not hard up of sunshade piece, so that hides the dismouting of sunshade piece, makes things convenient for later stage maintenance to change.

The invention is further provided that when the glass unit is hoisted in the S3, a forklift is arranged at the next floor where the glass unit is installed, and a cushion pad for supporting the glass unit is arranged at the lifting position of the forklift.

Through adopting above-mentioned technical scheme, set up fork truck and support the blotter, the little crane of fixed cantilever/activity of cooperation hoist and mount glass unit avoids glass unit to receive the wind load influence and rocks, avoids the hoist and mount in-process to take place the unexpected accident that drops of glass unit simultaneously.

In conclusion, the invention has the following beneficial effects: in the method for constructing the curtain wall, the inner frame unit is installed outside the building, the inner frame unit is used for arranging the glass units, the glass units are preliminarily fixed through the clamping structure, the glass units are prevented from being loosened due to the influence of wind load, the outer limiting plates and the inner connecting plates are used for clamping and fixing the glass units in a matched mode, therefore, the glass units can be accurately and quickly installed at the fixing positions, the construction difficulty is reduced, other steps in the construction method are followed again, and the integral installation of the curtain wall is achieved.

Drawings

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a schematic view of a curtain wall of the present invention;

FIG. 3 is a cross-sectional view taken along line A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B of FIG. 2;

fig. 5 is an exploded view of the curtain wall attachment of the present invention.

In the figure, 1, a building; 11. an internally threaded bore; 2. a connecting member; 21. a threaded post; 22. a positioning column; 3. an inner frame unit; 3a, an upper frame; 31. a first jack; 32. a card slot; 321. rotating the groove; 322. a step surface; 33. a first strong magnetic block; 34. pouring a hole; 35. a second jack; 4. an elastic buffer sheet; 5. a glass unit; 51. clamping the beam; 511. a rotating shaft; 512. a support beam; 52. a second strong magnetic block; 6. an outer limit plate; 6a, a rotation gap; 61. inserting a column; 62. perforating; 63. a third jack; 7. sun-shading sheets; 71. clamping the column; 711. blocking the ball; 8. clamping a plate; 81. a clamping hole; 82. and (4) a notch.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a curtain wall construction method, in this embodiment, for a super high-rise building with a building height of about 157 meters and a total of 37 floors, includes the following steps:

and S1, measuring and lofting.

Firstly, cleaning all embedded parts left in construction before the outer side of a building 1;

secondly, establishing a reference of the project according to a construction organization drawing, establishing a reference axis at a proper position by using curtain wall tolerance on the premise of no error in the axis confirmation of the project, and determining the reference axis as an auxiliary reference axis after repeated checking;

determining a reference axis and a sideline by a total station through a prism, determining the position of the center line of each supporting point according to a middle-side-middle-side cyclic measurement method, comprehensively calibrating and positioning the distance between the center lines, determining and calibrating a bottom layer reference horizontal line, and determining the perpendicular line of the center line of each supporting point;

finally, a theodolite is utilized to elastically arrange a main control line parallel to the periphery of each floor in each floor of the building 1 by using ink lines, and the theodolite is matched to divide an external control point and an external control line on the basis of the main control line, so that a plurality of fixing positions for correspondingly installing the glass units 5 and distributing along the external control line are formed;

<5> four inclined upward-facing internally threaded holes 11 are drilled by a drill in each fixing position on the outer side of the building 1, the internally threaded holes 11 are close to the top corners of the fixing positions, a connecting piece 2 (shown in figure 4) is installed at each internally threaded hole 11 in a threaded manner, and each connecting piece 2 comprises a threaded column 21 inserted into the internally threaded hole 11 and a positioning column 22 opposite to the threaded column 21.

S2, mounting an inner connecting plate.

<1> first, a plurality of inner frame units 3 constituting the inner connection plate are manufactured, and as shown in fig. 3, the size of the inner frame units 3 is fixed according to S1, and the inner frame units 3 are welded and enclosed by steel lattice to form a rectangular frame, which is a rectangular steel pipe having a hollow interior and has an upper frame 3a, a lower frame, a left frame, and a right frame. One side of the inner frame unit 3 attached to the building 1 is provided with a first insertion hole 31 for inserting the positioning column 22, and one side of the inner frame unit 3 back to the building 1, which is close to the center of the rectangular frame, is provided with a concave part for embedding the glass unit 5, so that the glass unit 5 and the inner frame unit 3 are coplanar. The concave center of the upper frame 3a is further provided with a clamping groove 32, the clamping groove 32 comprises a rotary groove 321 positioned at the bottom and a step surface 322 connected with the rotary groove 321, the opening between the rotary groove 321 and the step surface 322 is smaller than the inner diameter of the rotary groove 321, and the inner wall of the rotary groove 321 is further embedded with a first strong magnet 33. The top surface of the upper frame 3a is also provided with a pouring hole 34. Second jacks 35 are respectively formed in the sides, back to the building 1, of the upper frame 3a and the lower frame outside the concave parts;

secondly, a scaffold is built at a floor where the inner frame unit 3 is to be installed, the distance between the scaffold and the building 1 is 0.1 meter, and the bearing capacity of the scaffold is at least 0.4 ton;

<3> finally, installing the inner frame units 3 of the floor from the corner position of the building 1, wherein each inner frame unit 3 corresponds to the fixing position defined in S1, inserting the positioning column 22 into the first insertion hole 31, thereby hanging the inner frame unit 3 outside the building 1, then fully welding the gap between the positioning column 22 and the insertion hole, and further fixing the adjacent two inner frame units 3 inside the building 1 by welding, thereby assembling the inner connecting plates;

simultaneously, after assembling the inner connecting plate, lay elastic buffer piece 4 with one side of inner connecting plate dorsad building 1, the elastic ring towards piece is made by the sponge with the annular body of laminating inside casing unit 3 one side, and fixed through gluing the rifle adhesion.

And S3, hoisting the glass curtain wall.

Firstly, a glass unit 5 matched with an inner frame unit 3 is manufactured, a clamping beam 51 is glued at the center of the top end of the glass unit 5, as shown in a combined figure 3, the clamping beam 51 is matched with a clamping groove 32 in the inner frame unit 3 to form a clamping structure, the clamping beam 51 comprises a rotating shaft 511 and a supporting beam 512, the rotating shaft 511 is located at the end part and clamped in a rotating groove 321, the supporting beam 512 is abutted to a step surface 322, the maximum width of the rotating shaft 511 is larger than the thickness of the supporting beam 512 and the opening of the rotating groove 321, the clamping beam 51 is pressed into the clamping groove 32 during installation, and a second strong magnet 52 attracted with a first strong magnet 33 is embedded in the rotating shaft 511;

secondly, according to the wind load condition of each floor, a movable small crane is arranged below 25 floors of the floor, a fixed cantilever is arranged at the top floor and is used for hoisting the glass unit 5, meanwhile, a forklift is arranged at the next floor where the glass unit 5 is arranged, the lifting position of the forklift lifts at a gap of 0.1 meter between the scaffold and the building 1, and a cushion pad is arranged at the lifting position and is used for supporting the glass unit 5 when the glass unit 5 is hung by matching with the movable small crane/the fixed cantilever (not shown in the figure);

<3> finally, an inspection is made to ensure that the glass units 5 on one side of the building 1 are all fitted into the recesses in the inner frame unit 3 and a rope is tied across the side glass units 5 to avoid loosening of the glass units 5.

And S4, mounting the outer limit plate 6.

Firstly, an outer limiting plate 6 which is matched with the inner connecting plate to clamp and fix the glass unit 5 is manufactured, specifically, the rotating shaft 511 on the glass unit 5 is clamped, and the contact surface between the rotating shaft 511 and the outer limiting plate is an arc surface. The outer limiting plate 6 is made of an aluminum plate with the thickness of 20 cm, the length of the outer limiting plate is equal to the width of one side of the building 1, the outer limiting plate 6 is installed at the joint of two adjacent inner frame units 3 up and down and can cover the transverse gap between the inner frame units 3, wherein a rotating gap 6a for rotating the glass units 5 is formed between part of the outer limiting plate 6 and the inner connecting plate, and the rotating gap is combined with the rotating gap shown in fig. 3 and 5, so that the rotating shaft 511 can rotate between the inner connecting plate and the outer limiting plate 6. The outer limit plate 6 has an insertion post 61 at one side thereof to be inserted into the second insertion hole 35 of the inner frame unit 3, so that the outer limit plate 6 can be preliminarily positioned on the inner connection plate. A through hole 62 is formed in the outer limiting plate 6 at the joint of the two adjacent left and right inner frame units 3, the cross section of the through hole 62 is rectangular, the through hole 62 is parallel to the end face of the inserted column 61, and a third insertion hole 63 is formed in one side of the through hole 62, which is back to the inserted column 61;

then, standing on a scaffold, hanging the outer limiting plate 6 on the inner connecting plate by using the inserting column 61, and then welding gaps between the inserting column 61 and the second inserting hole 35 and gaps between the outer limiting plate 6 and the inner connecting plate, particularly fully welding the second inserting hole 35; finally, concrete is injected into the injection holes 34 of the inner frame unit 3 at a high pressure, and the inserting columns 61 and the positioning columns 22 of the connecting pieces 2 are wrapped through concrete condensation, so that the connection firmness among the building 1, the inner connecting pieces 2 and the outer limiting plates 6 is increased.

And S5, mounting curtain wall accessories.

<1> at first, make the curtain wall annex, the curtain wall annex in this engineering mainly is sunshade plate 7, sunshade plate 7 is made by the metal sheet metal component, and thickness is 0.02 meter or 0.01 meter, and length is decided according to the distance of two adjacent outer limiting plates 6 from top to bottom, and sunshade plate 7's both ends have the card post 71 that inserts third jack 63, and the maximum width of card post 71 is located the card ball 711 department of card post 71 tip, and maximum width equals the diameter of card ball 711.

<2> then, install sunshade piece 7, utilize sunshade piece 7's card post 71 to insert third jack 63, a cardboard 8 is inserted in the perforation 62 department of outer limiting plate 6, cardboard 8 is made by the spring steel, set up two upper and lower symmetries on the cardboard 8 and all supply the card hole 81 that card post 71 blocked in, and two reverse all have the breach 82 of intercommunication cardboard 8 lateral wall of calorie hole 81, the position of breach 82 is specifically at the upside/downside of card hole 81, and elastic deformation can take place for the bore of breach 82, so that the card post 71 of upper and lower both sides slides in card hole 81 department from breach 82, or enlarge card hole 81 through the change of breach 82 bore, so that card ball 711 passes card hole 81. Specifically, the sunshade plate 7 located at the lower side is inserted in the outer limiting plate 6, the clamping plate 8 matched with the sunshade plate 7 is inserted in the outer limiting plate 6, and the sunshade plate 7 matched with the clamping plate 8 and located at the upper side is inserted in the limiting plate, so that the two sunshade plates 7 are fixed on the same outer limiting plate 6. Block between card ball 711 and the outer limiting plate 6 of card post 71 through cardboard 8 to shelter from sun piece 7 quick fixed mounting between two adjacent outer limiting plates 6 from top to bottom, still be located the concatenation department between two adjacent inside casing units 3 about simultaneously, except sheltering from the illumination, still be used for hiding the gap of concatenation department between two adjacent inside casing units 3 about, and the sun-shading piece 7 that thickness is 0.02 meters can also be used for restricting glass unit 5 not hard up.

And S6, maintaining the curtain wall.

Firstly, cleaning curtain walls, installing each layer of curtain walls by the method from S2 to S5, erecting a safety protection shed on a scaffold in a subsection mode after installing a layer of curtain walls from bottom to top and from side to middle, wherein the safety protection shed comprises elastic ropes for binding the curtain walls, and two magnetic wipers are respectively positioned at two sides of the curtain walls for cleaning;

and 2, removing the elastic rope after the curtain wall is cleaned, shifting each component of the curtain wall, sampling to perform destructive test, and measuring the limit of the connection strength of each component, thereby detecting the connection firmness between each component of the curtain wall.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A curtain wall construction method is characterized by comprising the following steps:

s1, measurement lofting: cleaning embedded parts outside a building (1), establishing a reference datum axis by utilizing curtain wall tolerance, rechecking the relation between datum point lines by a total station through a prism, and elastically setting a main control line, an external control point and an external control line;

s2, mounting an inner connecting plate: constructing a steel lattice into inner frame units (3) for arranging the glass units (5), constructing a scaffold, and installing the inner frame units (3) from corner positions of the building (1) according to dotted lines marked in S1 to be spliced into inner connecting plates;

s3, hoisting the glass curtain wall: the glass units (5) are hoisted to the corresponding inner frame units (3) by using a fixed cantilever/movable small crane to be assembled into a glass curtain wall, and clamping structures matched with each other are arranged between the glass units (5) and the inner frame units (3);

s4, mounting an outer limit plate (6): manufacturing an aluminum plate on a scaffold to be matched with the inner connecting plate to clamp and fix an outer limiting plate (6) of the glass curtain wall, wherein a rotating gap (6a) for rotating the glass unit (5) is formed between part of the outer limiting plate (6) and the inner connecting plate;

s5, mounting curtain wall accessories: sun shading sheets (7) are vertically arranged on two adjacent outer limiting plates (6) in the S4, and the sun shading sheets (7) are positioned at the splicing position between two adjacent inner frame units (3);

2. The curtain wall construction method according to claim 1, wherein the connecting piece (2) is installed on the outer side of the building (1) in a threaded manner along a marked outer control line after the S1 is finished, the outer limiting plate (6) in the S4 is provided with a plurality of inserting columns (61), and the inner frame unit (3) in the S2 is provided with a first inserting hole (31) for inserting the connecting piece (2) and a second inserting hole (35) for inserting the inserting columns (61); and after the outer limiting plate (6) is installed in the S4, injecting concrete into the steel lattice of the inner frame unit (3) at high pressure.

3. The curtain wall construction method according to claim 1, wherein a clamping beam (51) is installed on the glass unit (5) in the step S3, when the inner frame unit (3) is manufactured in the step S2, a clamping groove (32) which is concave and is used for hanging the clamping beam (51) is formed in the upper side of the inner frame unit (3), and the clamping structure is formed by matching the clamping beam (51) with the clamping groove (32).

4. The curtain wall construction method according to claim 3, wherein a second strong magnet (52) is embedded in the clamp beam (51), and a first strong magnet (33) attracted with the second strong magnet (52) is embedded in the clamp groove (32).

5. The curtain wall construction method according to claim 3, wherein the bottom of the clamping groove (32) is provided with a rotating groove (321) with an opening smaller than the inner diameter, and the end of the clamping beam (51) is provided with a rotating shaft (511) pressed into the rotating groove (321) so as to rotate the glass unit (5).

6. The curtain wall construction method according to claim 1, wherein after the inner connection plate is assembled in the step S2, an elastic buffer sheet (4) is installed outside the inner connection plate.

7. The curtain wall construction method as claimed in claim 1, wherein the outer position-limiting plate (6) of S4 has a plurality of third insertion holes (63), and the sunshade plate (7) of S5 has fastening posts (71) inserted into the third insertion holes (63); and the specific step of installing the sun shielding sheet (7) in the S5 is that the clamping column (71) of the sun shielding sheet (7) is inserted into the third insertion hole (63) in the outer limiting plate (6), and then the clamping plate (8) is installed on one side, back to the sun shield, of the outer limiting plate (6) in a sliding mode, wherein the clamping plate (8) is provided with a clamping hole (81) for clamping the clamping column (71) and a notch (82) for enabling the clamping column (71) to slide into the clamping hole (81).

8. The curtain wall construction method according to claim 1, wherein when the glass unit (5) is hoisted in the S3, a forklift is arranged at the next floor where the glass unit (5) is installed, and a cushion pad for supporting the glass unit (5) is arranged at the lifting position of the forklift.