CN109736455B - Anti-settlement Construction Method of Curtain Wall Deformation Joints - Google Patents

Abstract

The invention is mainly applied to the technical field of construction, and in particular relates to a construction method for anti-settlement of a deformation joint of a curtain wall. 2) After pouring, remove the wood strips to form grooves; 3) Bury expansion bolts along the length of the grooves inside the two grooves; 4) The deformation joints in the podium are short Install the bending type lower cover in the groove and groove of the wall, 5) Embed waterproof grease; 6) Install the bending type upper cover in the groove and groove of the low wall of the deformation joint of the main building; 7) Install the inverted U-shaped inclined perforated cover plate; 8) inject foaming filler. The invention enables the upper and lower cover plates to form a relative displacement gap, so as to eliminate the influence of the pulling force caused by the settlement deformation difference of the podium of the main building, and form the anti-deformation ability. The setting of the inverted U-shaped inclined punching cover plate is convenient for disassembly.

Description

Anti-settlement Construction Method of Curtain Wall Deformation Joints

technical field

The invention relates to an anti-settlement construction method for a deformation joint of a curtain wall, and belongs to the technical field of building construction.

Background technique

With the gradual increase of high-rise buildings, the application of curtain wall is gradually widespread, and the main building mostly adopts curtain wall, and the waterproofing of the curtain wall at the joint deformation joint of high and low buildings has become a major quality risk. The traditional method is to place the curtain wall structure directly on the deformation joint. Filling with weather-resistant sealant will cause uneven settlement on both sides of the structure, which will lead to waterproof cracking or overall rupture of the lower layer of the curtain wall, resulting in the loss of the energy-saving effect of the curtain wall, and even causing safety hazards, falling and hurting people and other quality accidents.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is: to provide an anti-settlement construction method for the deformation joints of the curtain wall, which has strong anti-deformation ability, is convenient for later maintenance and replacement, and will not cause extrusion stress to the curtain wall panels and cause the curtain wall when subjected to cold and heat deformation or other external forces. The panel was crushed and damaged.

The anti-settlement construction method of the deformation joint of the curtain wall according to the present invention adopts the following steps:

1) Pour the deformation joint low wall of the main building and the podium deformation joint low wall. When pouring, make the deformation joint low wall of the main building higher than the podium deformation joint low wall to form a staggered height difference. , a tongue and groove groove is reserved on the outside of the low wall of the podium deformation joint;

2) Drill holes along the length of the two grooves and bury expansion bolts;

3) Place the pre-drilled bending lower cover in the groove of the low wall of the deformation joint of the podium, and tighten the nut of the expansion bolt to compress the bending lower cover;

4) Embed the waterproof ointment in the groove and trowel and cover it firmly;

5) Repeat steps 3) and 4) in the groove and groove of the low wall of the deformation joint of the main building to complete the installation of the bending type upper cover;

6) Install the curtain wall fixing parts, the main keel of the curtain wall, the secondary keel of the curtain wall, and the curtain wall panel in sequence;

7) Based on the edge of the low wall of the main building's deformation joint, install the inverted U-shaped inclined perforated cover;

8) Inject the foaming filler into the hole of the inverted U-shaped inclined perforated cover plate, and use a blade to cut off the excess filler from the foamed filler overflowing the curtain wall panel and the upper inverted U-shaped inclined perforated cover plate.

In the step 1), the height difference of the staggered platform is at least 200mm, and the outer sides of the deformation joint low wall of the main building and the podium deformation joint low wall are respectively the side close to the deformation joint for the main building and the side away from the deformation joint for the podium.

Described step 1) when pouring the main building deformation joint low wall and the podium deformation joint low wall, place the wooden strips longitudinally on the outside of the main building respectively; Grooves are formed on the low walls respectively; the wooden strips are square wooden strips of 30mm*30mm.

In the step 2), the drilling distance between the two grooves is ≤500mm.

In the steps 3) and 5), the bending type lower cover plate and the bending type upper cover plate are aluminum plates respectively, and the pre-drilled holes are the same as the punched holes in step 2).

In the described step 6), the glass curtain wall is selected as the curtain wall panel, and the lower part of the inner side of the curtain wall panel is painted with silver powder paint, and the painting height is within the height range of the foaming filler. When the curtain wall panel is a light-transmitting material, the glass back is coated, and the silver powder paint has reflective properties, which can effectively block the ultraviolet radiation aging of the internal foaming filler from sunlight.

In the step 7), the inverted U-shaped inclined perforated cover plate is set as an inverted U-shaped inclined 45-degree perforated aluminum cover plate, and the punching position is in the middle of the inverted U-shaped inclined perforated cover plate.

In the described step 8), the injection height of the foaming filler 6 is 1/3 of the inner space, which is based on the overflow from the injection hole after 20 minutes.

The upper part of the bending type upper cover plate is installed in the groove and groove of the low wall of the deformation joint of the main building, and the lower part is suspended. connected L type.

The lower part of the bending type lower cover plate is installed in the groove and groove of the low wall of the deformation joint of the podium, the upper part is suspended, the corresponding groove and groove of the lower part is set to be U-shaped, and the suspended part is the two head and tail corresponding to the height difference of the staggered platform. Connected L-shape.

The beneficial effects of the present invention are:

The setting of the bent lower cover plate and the bent upper cover plate enables the upper and lower cover plates to form a relative displacement gap, which is used to eliminate the influence of the tensile force caused by the poor settlement and deformation of the podium of the main building, and to form the anti-deformation ability. And it is convenient for later maintenance and replacement. The setting of the inverted U-shaped oblique perforated cover plate is easy to disassemble. Just remove the inverted U-shaped oblique 45-degree perforated aluminum cover, simply cut the foaming filler, and replace the upper cover and lower cover. plate. The 45-degree inclined cover plate will not cause extrusion stress to the curtain wall panel when it is deformed by cold and heat or other external forces, causing the curtain wall panel to be crushed and damaged, and the subsequent foaming filler will form a closed space. The silver powder paint painted on the curtain wall panel has reflective properties, and the glass back coating can effectively block the ultraviolet radiation aging of the internal foaming filler from sunlight. When the curtain wall panel is a light-transmitting material.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of a bending type upper cover plate.

FIG. 3 is a schematic structural diagram of a bent lower cover plate.

FIG. 4 is a schematic structural diagram of an inverted U-shaped oblique perforated cover plate.

In the figure: 1. Curtain wall main keel; 2. Curtain wall fixings; 3. Curtain wall panel; 4. Silver powder paint coating; 5. Curtain wall secondary keel; 6. Foaming filler; 7. Bending type upper cover; 8 , Bending type lower cover; 9. Waterproof grease; 10. Expansion bolts; 11. Podium deformation joint low wall; 12. Podium peripheral frame beam; 13. Main building peripheral frame beam; 14. Main building deformation joint low wall ; 15. Frame column of the main building; 16. Inverted U-shaped inclined perforated cover plate.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings:

As shown in Figures 1 to 4, the anti-settlement construction method of the curtain wall deformation joint according to the present invention:

1) After pouring the main building frame column 15, the main building peripheral frame beam 13, and the podium peripheral frame beam 12, pour the main building deformation joint low wall 14 and the podium deformation joint low wall 11, and make the main building deformation joint low wall 14 higher than The deformation joint low wall 11 of the podium is formed to form a staggered height difference, and during pouring, wooden strips are placed longitudinally on the outside of the main building deformation joint low wall 14 and the podium deformation joint low wall 11 respectively;

2) After the pouring is completed, the strips are removed, and grooves and grooves are formed on the main building deformation joint low wall 14 and the podium deformation joint low wall 11 respectively;

3) Drill holes along the length of the two grooves inside the grooves, and embed expansion bolts 10;

4) Place the pre-drilled aluminum bending type lower cover plate 8 in the groove of the podium deformation joint low wall 11, and tighten the nut of the expansion bolt 10 to press the bending type lower cover plate 8;

5) Embed the waterproof ointment 9 in the groove and groove, and smooth and cover;

6) In the groove and groove of the deformation joint low wall 14 of the main building, repeat steps 4), 5) to complete the installation of the bending type upper cover plate 7;

7) Install the curtain wall fixing parts 2, the main keel of the curtain wall 1, the secondary keel of the curtain wall 5, and the curtain wall panel 3 in sequence;

8) Based on the upper edge of the deformation joint low wall 14 of the main building, install the inverted U-shaped inclined punching cover plate 16;

9) Inject the foaming filler 6 into the hole of the inverted U-shaped inclined perforated cover plate 16, and use a blade to cut off the excess filling material of the foamed filler 6 overflowing the curtain wall panel and the upper inverted U-shaped inclined perforated cover plate 16.

In the step 1), the height difference of the staggered platform is at least 200mm, and the outer sides of the main building deformation joint low wall 14 and the podium deformation joint low wall 11 are respectively the main building near the deformation joint and the podium far away from the deformation joint.

The wooden strips used in the described step 1) are 30mm*30mm square wooden strips.

In the step 3), the spacing between the holes inside the two grooves is ≤500mm.

In the steps 4) and 6), the bending type lower cover plate 8 and the bending type upper cover plate 7 are aluminum plates respectively, and the pre-drilled holes are the same as the punched holes in step 3).

In the step 7), the glass curtain wall is selected for the curtain wall panel 3, and silver powder paint is painted on the inner lower part of the curtain wall panel 3 to form the silver powder paint coating 4, and the painting height is the height range of the foaming filler 6.

In step 8), the inverted U-shaped oblique punching cover plate 16 is set as an inverted U-shaped oblique 45-degree punched aluminum cover plate, and the punching position is in the middle of the inverted U-shaped oblique punching cover plate 16 .

In step 9), the injection height of the foaming filler 6 is 1/3 of the inner space, which is based on the overflow from the injection hole after 20 minutes.

The upper part of the bending type upper cover plate 7 is installed in the groove and groove of the deformation joint low wall 14 of the main building. The L shape. The lower part of the bent lower cover plate 8 is installed in the groove and groove of the low wall 11 of the deformation joint of the podium, the upper part is suspended, the corresponding groove and groove of the lower part is set to be U-shaped, and the suspended part is the two end-to-end phase corresponding to the height difference of the staggered platform. connected L type.

Claims (10)

1. A curtain wall deformation joint anti-settlement construction method is characterized by comprising the following steps:

1) pouring a main building deformation joint low wall (14) and a skirt room deformation joint low wall (11), wherein the main building deformation joint low wall (14) is higher than the skirt room deformation joint low wall (11) during pouring to form a staggered platform height difference, and tongue-and-groove grooves are reserved on the outer sides of the main building deformation joint low wall (14) and the skirt room deformation joint low wall (11) respectively during pouring;

2) drilling holes in the two tongue-and-groove grooves along the length direction of the tongue-and-groove grooves, and embedding expansion bolts (10);

3) a pre-punched bent lower cover plate (8) is placed in a rabbet groove of the skirt house deformation joint low wall (11), and a nut of an expansion bolt (10) is screwed to compress the bent lower cover plate (8);

4) embedding waterproof factice (9) in the groove and tongue groove, and trowelling and covering firmly;

5) repeating the steps 3) and 4) in the tongue-and-groove of the main building deformation joint low wall (14), and finishing the installation of the bent upper cover plate (7);

6) sequentially installing a curtain wall fixing piece (2), a curtain wall main keel (1), a curtain wall secondary keel (5) and a curtain wall panel (3);

7) an inverted U-shaped inclined punching cover plate (16) is installed by taking the upper edge of the main building deformation joint low wall (14) as a reference;

8) the foaming filler (6) is injected into the holes of the inverted U-shaped inclined perforated cover plate (16), and the excessive filling material overflowing from the curtain wall panel (3) and the upper inverted U-shaped inclined perforated cover plate (16) of the foaming filler (6) is cut off by a blade.

2. The anti-settling construction method for the deformation joint of the curtain wall as claimed in claim 1, wherein the anti-settling construction method comprises the following steps: in the step 1), the height difference of the staggered platforms is at least 200mm, the outer sides of the main building deformation joint low wall (14) and the skirt room deformation joint low wall (11) are respectively the main building side close to the deformation joint and the skirt room side far away from the deformation joint.

3. The anti-settling construction method for the deformation joint of the curtain wall as claimed in claim 1, wherein the anti-settling construction method comprises the following steps: step 1) when a main building deformation joint low wall and a skirt house deformation joint low wall are poured, battens are longitudinally and completely arranged on the outer sides of the main building deformation joint low wall and the skirt house deformation joint low wall; after pouring, removing battens, and respectively forming tongue-and-groove grooves on the main building deformation joint low wall and the skirt house deformation joint low wall; the battens are square battens with the thickness of 30mm by 30 mm.

4. The anti-settling construction method for the deformation joint of the curtain wall as claimed in claim 1, wherein the anti-settling construction method comprises the following steps: the distance between the drill holes in the two tongue-and-groove grooves in the step 2) is less than or equal to 500 mm.

5. The anti-settling construction method for the deformation joint of the curtain wall as claimed in claim 1, wherein the anti-settling construction method comprises the following steps: the bending type lower cover plate (8) and the bending type upper cover plate (7) in the steps 3) and 5) are respectively made of aluminum plates, and the pre-punching intervals of the bending type lower cover plate and the bending type upper cover plate are consistent with the punching intervals in the step 2).

6. The anti-settling construction method for the deformation joint of the curtain wall as claimed in claim 1, wherein the anti-settling construction method comprises the following steps: and 6), selecting a glass curtain wall as the curtain wall panel (3), and coating silver paint on the lower part of the inner side of the curtain wall panel (3) before installation, wherein the coating height is within the height range of the foaming filler (6).

7. The anti-settling construction method for the deformation joint of the curtain wall as claimed in claim 1, wherein the anti-settling construction method comprises the following steps: and 7), arranging the inverted U-shaped inclined punching cover plate (16) into an inverted U-shaped inclined 45-degree punching aluminum cover plate, and punching the hole at the middle part of the inverted U-shaped inclined punching cover plate (16).

8. The anti-settling construction method for the deformation joint of the curtain wall as claimed in claim 1, wherein the anti-settling construction method comprises the following steps: in step 8), the foaming filler (6) is injected into the inner space 1/3 at a height of 20 minutes before overflowing from the injection hole.

9. The anti-settling construction method for the deformation joint of the curtain wall as claimed in claim 1, wherein the anti-settling construction method comprises the following steps: and 5), the upper part of the bending type upper cover plate (7) is arranged in a rabbet groove of the main building deformation joint low wall (14), the lower part of the bending type upper cover plate is suspended, the upper part of the bending type upper cover plate is arranged in a U shape corresponding to the rabbet groove, and the suspended part of the bending type upper cover plate is an L shape with two ends connected with each other and arranged corresponding to the height difference of the staggered floor.

10. The anti-settling construction method for the deformation joint of the curtain wall as claimed in claim 1, wherein the anti-settling construction method comprises the following steps: and 3) the lower part of the bent lower cover plate (8) is arranged in a rabbet groove of the skirt house deformation joint low wall (11), the upper part is suspended, the lower part corresponding to the rabbet groove is set to be U-shaped, and the suspended part is L-shaped with two ends connected with each other and corresponding to the staggered platform height difference.

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