CN110685435A - Waterproof structure for screw hole of shear wall of outer vertical surface - Google Patents

Abstract

The invention discloses a waterproof structure for a screw hole of an external facade shear wall, which comprises: a conical sleeve sleeved on the middle section of the screw through the wall; Holes, conical holes penetrate through the water-facing side and the walls on both sides of the back-water side of the shear wall, and the first hole is set on the water-facing side, the second hole is set on the back-water side, and the position of the first hole is lower than the position of the second hole; the location is buried It is embedded on the water-facing side of the shear wall, and the positioning embedded part is connected with a positioning rod. The outer formwork on the water-facing side of the shear wall is provided with a positioning hole for the positioning rod to be inserted. The distance between the screw holes passing through the wall screw is equal to the distance between the corresponding positioning embedded part and the first hole. In the present invention, the conical casing is used to make the screw hole of the outer wall always lower than the screw hole of the inner wall, so that rainwater cannot penetrate into the interior of the building through the screw hole.

Description

Waterproof Structure of Screw Hole in Facade Shear Wall

technical field

The invention relates to the field of engineering construction, in particular to a screw hole waterproof structure of an external facade shear wall.

Background technique

With the development and implementation of housing urbanization and industrialization in China, the real estate development market has prospered. High-rise residential buildings have become the best choice for urban planning and population living due to their advantages of high land utilization, low demolition costs, and many underground garage parking spaces. place. Due to the high height of high-rise buildings, structural engineers have to improve their overall stiffness in the form of core tubes and shear walls. Core tube structures are generally used in super high-rise building structures, and residential buildings are generally shear wall structures. In the structural design of high-rise residential buildings, the shear wall is inevitably used as the edge component of the building. The shear wall made of reinforced concrete needs to be fixed by the use of tension screws for the inner and outer formwork in the conventional construction technology, and the tension screws are often made of plastic. The casing is spaced from the concrete so that the tie rods can be removed from the formwork, and the tie rods are set horizontally. In this way, the waterproofing of the water-facing exterior wall only relies on the screw hole grouting and the construction quality of the exterior wall waterproof layer, and the screw hole itself does not have the waterproof function.

Therefore, it is necessary to optimize the traditional formwork system for the water-facing shear wall.

SUMMARY OF THE INVENTION

The invention mainly aims at the deficiencies of the prior art, and provides a waterproof structure for the screw hole of the external facade shear wall, which utilizes the combined use of the conical casing and the conical embedded parts to reduce the water seepage phenomenon of the screw hole of the external facade shear wall.

The technical scheme adopted in the present invention is: a waterproof structure for screw holes of an external facade shear wall, which comprises:

The tapered bushing is sleeved on the middle section of the screw through the wall, and the shear wall is provided with a tapered hole whose shape is consistent with the shape of the tapered bushing, and the tapered hole penetrates the water-facing surface and the back of the shear wall. The walls on both sides of the water surface, and the first opening is arranged on the upstream surface, the second opening is arranged on the backwater surface, and the position of the first opening is lower than the position of the second opening;

The positioning embedded piece is embedded on the water-facing side of the shear wall, the positioning embedded piece is connected with a positioning rod, and the outer formwork on the water-facing side of the shear wall is provided with a positioning hole for the positioning rod to be inserted. The distance between the positioning hole and the screw hole on the outer template for penetrating the wall screw is equal to the distance between the corresponding positioning embedded part and the first hole.

In some embodiments of the structure of the present invention, the positioning embedded part is a conical embedded part, and the narrow head end of the conical embedded part is located on the water-facing surface of the shear wall.

In some embodiments of the structure of the present invention, a threaded hole is formed in the middle of the positioning embedded member, and an external thread matched and screwed with the threaded hole is formed on the positioning rod.

In some embodiments of the structure of the present invention, the first end of the positioning rod is connected to the positioning embedded member, and the second end of the positioning rod is screwed with a nut and cooperates with a steel pipe and a mountain-shaped clamp to fix the outer formwork. The middle part of the mountain-shaped card is provided with an opening for the positioning rod to pass through.

In some embodiments of the structure of the present invention, the longitudinal length of the tapered sleeve is equal to the thickness between the water-facing surface and the water-reversing surface of the shear wall.

In some embodiments of the structure of the present invention, the diameter of the conical sleeve gradually increases from the first end to the second end, and the first end of the conical sleeve is flush with the first hole, The second end of the tapered sleeve is flush with the second opening.

In some embodiments of the structure of the present invention, the lower edge of the opening of the first opening is lower than the lower edge of the opening of the second opening.

The present invention rationally adjusts the shape and inclination angle of the screw hole in the shear wall and the height difference between the inner and outer wall formwork to achieve the following effects:

1. Use the tapered casing to make the screw hole of the outer wall always lower than the screw hole of the inner wall;

2. Use tapered casing to eliminate errors in construction;

3. Use the conical embedded parts to accurately locate the screw holes of the outer template;

4. This technology is suitable for the construction of standard layer water-facing shear wall structures, and has high requirements for the control of the overall construction accuracy of the formwork;

5. The plastic sleeve used in the traditional template system cannot be taken out after the mold is removed. The inner wall of the plastic sleeve is smooth and the quality of the later grouting sealing is poor. The tapered sleeve can be taken out due to its special shape. Utilization effectively responds to the green construction policy.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic diagram of the use state of the screw hole waterproof structure of the external facade shear wall according to the first embodiment of the present invention.

FIG. 2 is a schematic diagram of the use state of the screw hole waterproof structure of the external facade shear wall according to the second embodiment of the present invention.

FIG. 3 is a schematic diagram of the positioning embedded part of the screw hole waterproof structure of the facade shear wall according to the second embodiment of the present invention.

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

In the structural design of high-rise residential buildings, the shear wall is inevitably used as the edge component of the building. The shear wall made of reinforced concrete needs to be fixed by the use of tension screws for the inner and outer formwork in the conventional construction technology, and the tension screws are often made of plastic. The casing is spaced from the concrete so that the tie rods can be removed from the formwork, and the tie rods are set horizontally. In this way, the waterproofing of the water-facing exterior wall only relies on the screw hole grouting and the construction quality of the exterior wall waterproof layer, and the screw hole itself does not have the waterproof function.

Therefore, it is necessary to optimize the traditional formwork system for the water-facing shear wall.

The main purpose of the present invention is to optimize and improve the water-facing exterior wall formwork system, so that the inner screw hole of the shear wall is always higher than the outer side, so that rainwater cannot penetrate into the building through the screw hole.

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

Referring first to FIG. 1 and FIG. 3, a schematic diagram of the use state of the screw hole waterproof structure of the facade shear wall according to the first embodiment of the present invention is provided. As shown in the figures, the screw hole waterproof structure of the facade shear wall, It mainly includes the new type of shear wall screw hole after transformation, namely the conical hole 11, the conical sleeve 12 set on the through-wall screw, and the positioning buried of the outer formwork 21 used to locate the water-facing side of the shear wall. 13 and positioning rod 14. The purpose of the present invention is achieved by rationally adjusting the shape and inclination angle of the screw hole of the shear wall and the height difference between the inner and outer wall formwork.

The shape of the outer contour of the conical sleeve 12 is consistent with the shape of the opening of the conical hole 11 of the shear wall 20, and the longitudinal length of the conical sleeve 12 is also consistent with the length of the conical hole 11, so that the After the conical sleeve 12 is inserted into the conical hole 11, the two ends of the conical sleeve 12 are flush with the two ends of the conical hole 11 respectively. The installation straightness, on the other hand, it is also convenient to take out the conical sleeve 12 after use.

Preferably, the conical sleeve 12 is sleeved at the middle position of the wall-penetrating screw 10, and penetrates into the conical hole 11 of the shear wall together with the wall-penetrating screw 10, and the two opposite sides of the shear wall 20 respectively constitute On the water surface a and the backwater surface b, the conical holes 11 penetrate through the two sides of the upstream surface a and the downstream surface b of the shear wall. The hole 112 is set on the backwater surface b, and the position of the first hole 111 is always lower than the position of the second hole 112, that is, the hole on the upstream side is always lower than the hole on the backwater side, so that rainwater will not pass through. The screw holes flow into the interior of the building.

As shown in FIG. 3 , the positioning embedded part 13 is embedded on the side of the water-facing surface a of the shear wall 20 , the positioning embedded part 13 is connected with the positioning rod 14 , and the outer formwork 21 on the side of the water-facing surface a of the shear wall is provided with a supply. The positioning hole inserted by the positioning rod 14, the outer template 21 is also provided with a screw hole for the wall-penetrating screw to pass through, and the distance between the positioning hole on the outer template 21 and the screw hole is equal to the corresponding positioning embedded part 13 and the first hole distance between 111. The screw holes on the outer template 21 can be precisely positioned by using the conical embedded parts 13 and the positioning rods 14 . The positioning embedded part 13 adopts a conical embedded part, and the narrow head end of the conical embedded part 13 is located on the surface a of the water-facing surface a of the shear wall. A threaded hole is provided in the middle of the positioning embedded piece 13 , the positioning rod 14 is provided with an external thread matched with the threaded hole, and the positioning rod 14 is screwed into the threaded hole of the positioning embedded piece through the external thread. A snap connection or other connection structure can also be used between the positioning embedded part 13 and the positioning rod 14 . For better positioning, the threaded holes on the positioning embedded part 13 are generally arranged horizontally to ensure that the positioning rod 14 can be arranged horizontally.

During installation, the first end of the positioning rod 14 is connected to the positioning embedded part 13, the second end of the positioning rod 14 is screwed with a nut 141 and used together with the steel pipe 142 and the mountain-shaped clip 143 to fix the outer formwork 21, wherein the mountain A hole for the positioning rod 14 to pass through is provided in the middle of the type card 143 .

The key technical point of the screw hole waterproof structure of the facade shear wall of the present application is to ensure that the screw hole on the back side of the inner side of the shear wall is always higher than the screw hole on the outside water-facing side, and prevent rainwater from flowing into the screw hole from the outer water-facing side. into the building. Therefore, it is necessary to ensure that the lower edge of the first hole 111 on the water-facing side of the above-mentioned conical hole 11 is always lower than the lower edge of the second hole 112 on the leeward side.

In the embodiment shown in FIG. 1 , the inclination of the conical hole 11 is relatively large, and the lower edge of the second hole 112 is even higher than the upper edge of the first hole 111 . At this time, it is necessary to adjust the shear wall appropriately. The positions of the screw holes on the outer template 21 of the inner template 22 on both sides for passing through the wall screw 10, when the corresponding screw holes on the two side templates are staggered up and down, that is, the position of the screw holes of the inner template 22 is appropriately adjusted, or, appropriately Adjust the screw hole position of the outer template 22 down.

For another example, in the embodiment shown in FIG. 2 , the inclination of the conical hole 11 is relatively small, the lower edge of the second hole 112 is slightly higher than the lower edge of the first hole 111 and lower than the upper edge of the first hole 111 , At this time, there is no need to adjust the height of the screw holes on the formwork on both sides of the shear wall, and the screw holes on the formwork on both sides can still be aligned horizontally.

The design of the conical sleeve 12 and the conical hole 11 in the present invention can also play the role of eliminating some construction errors to a certain extent. The technology of the invention is also suitable for the construction of the standard layer water-facing shear wall structure, and has high requirements on the control of the overall construction accuracy of the formwork. In addition, the plastic sleeve used in the traditional formwork system cannot be taken out after the mold is removed. The inner wall of the plastic sleeve is smooth and the quality of the later grouting sealing is poor. The tapered sleeve can be taken out by tapping due to its special shape, and its repeated Utilization effectively responds to the green construction policy.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not intended to limit the present invention. The limited conditions that can be implemented have no technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the present invention without affecting the effect and the purpose that the present invention can achieve. It is within the scope that the technical content disclosed in the present invention can cover. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and clarity, and are not used to limit this specification. The implementable scope of the invention, and the change or adjustment of the relative relationship thereof, shall also be regarded as the implementable scope of the present invention without substantially changing the technical content.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Personnel, within the scope of not departing from the technical solution of the present invention, can make some changes or modifications to equivalent examples of equivalent changes by using the technical content disclosed above. Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.

Claims (7)

1. The utility model provides a waterproof structure of facade shear force wall screw rod hole which characterized in that includes:

the shear wall is provided with conical holes, the shape of each conical hole is consistent with the shape of each conical sleeve, the conical holes penetrate through wall surfaces on two sides of a water-facing surface and a back surface of the shear wall, a first hole is formed in the water-facing surface, a second hole is formed in the back surface, and the position of the first hole is lower than that of the second hole;

the positioning embedded part is embedded at the water-facing side of the shear wall, a positioning rod is connected to the positioning embedded part, a positioning hole for the positioning rod to be inserted is formed in the outer side template at the water-facing side of the shear wall, and the distance between the positioning hole and a screw hole in the outer side template for the wall screw to penetrate through is equal to the distance between the corresponding positioning embedded part and the first hole.

2. The facade shear wall screw hole waterproof structure of claim 1, wherein: the positioning embedded part is a conical embedded part, and the narrow head end of the conical embedded part is positioned on the surface of the shear wall facing the water.

3. The facade shear wall screw hole waterproof structure of claim 2, wherein: the middle part of the positioning embedded part is provided with a threaded hole, and the positioning rod is provided with an external thread matched and screwed with the threaded hole.

4. The facade shear wall screw hole waterproof structure of claim 1, wherein: the first end of the locating rod is connected with the locating embedded part, the second end of the locating rod is screwed with a nut and matched with the steel pipe and the mountain-shaped clamp to fix the outer side template, and the middle part of the mountain-shaped clamp is provided with a hole for the locating rod to penetrate through.

5. The facade shear wall screw hole waterproof structure of claim 1, wherein: the length of the longitudinal body of the conical sleeve is equal to the thickness between the upstream surface and the downstream surface of the shear wall.

6. The facade shear wall screw hole waterproof structure of claim 1, wherein: the pipe diameter of the taper sleeve pipe gradually increases from the first end to the second end, the first end of the taper sleeve pipe is flush with the first hole, and the second end of the taper sleeve pipe is flush with the second hole.

7. The facade shear wall screw hole waterproof structure of claim 1, wherein: the lower edge of the first hole is lower than the lower edge of the second hole.

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