CN219011539U

CN219011539U - Waterproof construction of expansion joint

Info

Publication number: CN219011539U
Application number: CN202223390761.1U
Authority: CN
Inventors: 张帆; 米维华; 杨涛涛; 王世飞; 谷蓉; 张鹏宇; 冯骁骊; 卫爱兰; 张志勇; 李选梅
Original assignee: Shanxi Second Construction Group Co Ltd
Current assignee: Shanxi Second Construction Group Co Ltd
Priority date: 2022-12-18
Filing date: 2022-12-18
Publication date: 2023-05-12
Anticipated expiration: 2032-12-18

Abstract

The utility model discloses a waterproof structure of an expansion joint, wherein the lowest layer of the waterproof structure is composed of a middle-buried rubber water stop, the middle-buried rubber water stop is arranged in the expansion joint, and two sides of the middle-buried rubber water stop are pre-buried in a building body at two sides of the expansion joint; the utility model reduces metal embedded parts, avoids cracks of the building caused by metal expansion, prolongs the service life of the embedded rubber water stop belt, and improves the pressure based on a wedge block structure and a opposite pulling mode to improve the friction force so as to realize fastening.

Description

Waterproof construction of expansion joint

Technical Field

The utility model relates to the fields of building structures, waterproof structures and expansion joint waterproof structures, in particular to a waterproof structure of an expansion joint.

Background

The expansion joint is a structural joint which is arranged along a proper position of a building or a construction joint direction of the building in order to prevent a building member from being cracked or damaged due to climate temperature change, waterproof treatment of the expansion joint generally utilizes a rubber water stop belt, waterproof water isolation is realized in the building body at two sides of the expansion joint through embedding the rubber water stop belt, and because the rubber water stop belt is made of flexible materials, rubber inserts are generally arranged at the top position of the expansion joint for protection when an actual waterproof structure is arranged, fixing of the inserts is generally realized by embedding metal parts in the building body to match bolts, the metal parts deform to a certain extent when being heated and cooled, so that local stress is larger to the building body, a crack is generated, the crack extends downwards a certain distance gradually, then a communication effect is generated with the rubber water stop belt, the building body around the crack can generate an irregular shearing force effect on the rubber water stop belt, the rubber water stop belt is damaged, the waterproof effect is lost, and the later maintenance of the whole building is difficult to repair.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.

The lowest layer of the waterproof structure is formed by a middle-buried rubber water stop, the middle-buried rubber water stop is arranged in the expansion joint, and two sides of the middle-buried rubber water stop are embedded in a building body at two sides of the expansion joint;

an anti-cracking fiber layer is also pre-buried at intervals above the middle-buried rubber water stop in the building body, and is paved by polyester glass fiber cloth;

two symmetrically arranged angle plates are arranged at the opening position above the expansion joint, each angle plate is composed of strip-shaped L-shaped angle irons, the angle plates are respectively attached to the building bodies at two sides of the expansion joint, the top surface of a specific angle plate is attached to the top surface of the building body, and the side surface of each angle plate is attached to the side surface of the building body in the expansion joint; strip-shaped corner plate cutting bars are embedded and arranged between the corner plates, and the corner plate cutting bars respectively prop against the side surfaces of the corner plates towards two sides;

the top surface of the angle plate cutting is integrally formed with a flat cutting top plate, and the cutting top plate is pressed down to contact the angle plates at the left side and the right side; the top surface and the two sides of the cutting top plate are covered and paved with mortar protection filling layers, the surfaces of the mortar protection filling layers are leveled, the surfaces of the mortar protection filling layers are adhered with a layer of butyl waterproof adhesive tape, and rubber inserts are placed above the butyl waterproof adhesive tape.

As a further scheme of the utility model: a plurality of diversion grooves are formed in the surface of the rubber insert.

As a further scheme of the utility model: the bottom surface of the angle plate cutting is provided with a wedge groove with the same trend, and the width of the wedge groove gradually decreases from bottom to top; wedge blocks are embedded in the wedge grooves, and the left side surface and the right side surface of the wedge blocks are in sliding fit with the left inclined surface and the right inclined surface of the inner side of the wedge grooves.

As a further scheme of the utility model: the upper surface of the rubber insert is provided with a plurality of through holes which are formed from top to bottom and sequentially penetrate through the rubber insert, the butyl waterproof adhesive tape, the mortar protection filling layer, the cutting top plate and the corner plate cutting, and the through holes are communicated with the wedge grooves; screw holes of the vertical through type are arranged in the wedge blocks, and the screw holes are opposite to the through holes above the screw holes and are arranged in a one-to-one correspondence manner; a bolt penetrates into the screw hole of the wedge block from bottom to top and pulls up the wedge block, the head end of the bolt penetrates into the wedge groove and then penetrates out of the top surface of the rubber insert block through the through hole, a locking nut is sleeved on the head end thread of the bolt, and the locking nut is in tight contact with the top surface of the rubber insert block.

As a further scheme of the utility model: the wedge block is mutually spaced with the embedded rubber water stop belt below, and a water-swelling rubber strip and a joint filling mortar layer are arranged between the wedge block and the embedded rubber water stop belt.

The utility model has the beneficial effects that: according to the utility model, the metal embedded part is reduced, the crack of a building body caused by metal expansion is avoided, the service life of the embedded rubber water stop belt is prolonged, the tightening is realized by increasing the pressure based on the wedge block structure and the opposite pulling mode, so that the fastening is realized by improving the friction force, the stable bolt fixing effect can be obtained at the moment, the bolt fixing effect is obtained by the rubber embedded part, and the metal part is not required to be embedded in the building body as a whole.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a front view of the utility model at a shown in fig. 1.

In the figure: 1-embedded rubber water stop, 2-rubber inserts, 3-diversion grooves, 4-butyl waterproof adhesive tape, 5-mortar protection filling layers, 6-crack resistant fiber layers, 7-angle plates, 8-angle plate cutting, 9-cutting top plates, 10-wedge grooves, 11-wedge blocks, 12-bolts, 13-locking nuts, 14-water-swelling rubber strips and 15-joint filling mortar layers.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-2, in the embodiment of the present utility model, a waterproof structure of an expansion joint is formed by a buried rubber water stop 1 at the lowest layer, the buried rubber water stop 1 is disposed in the expansion joint, two sides of the buried rubber water stop 1 are pre-buried in a building body at two sides of the expansion joint, the buried rubber water stop 1 is a main waterproof structure, and is installed and fixed in a pre-buried manner, and waterproof blocking and infiltration preventing are performed on the expansion joint;

the anti-cracking fiber layers 6 are also arranged at intervals and pre-buried at the upper position of the middle-buried rubber water stop 1 in the building body, the anti-cracking fiber layers 6 are paved by polyester glass fiber cloth, the polyester glass fiber cloth has excellent tensile strength, and counteracts the situation of overlarge local stress, particularly when a crack extending from top to bottom occurs in the building body, the anti-cracking fiber layers 6 can effectively delay the extending speed of the crack, delay the crack from extending to the position of the middle-buried rubber water stop 1 below the middle-buried rubber water stop, thereby reducing the stress shearing effect of the middle-buried rubber water stop 1 caused by the crack and avoiding the breakage of the middle-buried rubber water stop 1;

two L-shaped angle irons are symmetrically arranged at the opening position above the expansion joint, the angle plates 7 are formed by the L-shaped angle irons in a strip shape, the angle plates 7 are respectively attached to the building bodies at the two sides of the expansion joint, the top surface of a specific angle plate 7 is attached to the top surface of the building body, and the side surface of the angle plate 7 is attached to the side surface of the building body in the expansion joint; the strip-shaped corner plate cutting strips 8 are embedded and arranged between the corner plates 7, and the corner plate cutting strips 8 respectively prop against the side surfaces of the corner plates 7 towards two sides, so that the contact pressure between the corner plates 7 and the building body is increased, and the fastening between the corner plates 7 and the building body is realized;

the top surface of the angle plate cutting 8 is integrally formed with a flat cutting top plate 9, and the cutting top plate 9 is pressed down to contact the angle plates 7 at the left side and the right side; the top surface and two side positions of the cutting top plate 9 are covered and paved with mortar protection filling layers 5, the surfaces of the mortar protection filling layers 5 are leveled, a layer of butyl waterproof adhesive tape 4 is adhered to the surfaces of the mortar protection filling layers, a rubber insert 2 is arranged above the butyl waterproof adhesive tape 4, the rubber insert 2 is used as a compression-resistant structure to play a role in relieving external impact, the butyl waterproof adhesive tape 4 is used as a waterproof structure, the infiltration of water can be reduced, and the infiltration of water into an expansion joint is reduced; the mortar protection filling layer 5 is formed by wrapping a protection angle plate 7, an angle plate cutting 8 and a cutting top plate 8, so that the structural damage of the components caused by external impact is reduced.

A plurality of diversion grooves 3 are formed in the surface of the rubber insert 2, and the diversion grooves 3 are used for improving the drainage speed.

The bottom surface of the angle plate cutting 8 is provided with a wedge groove 10 with the same trend, and the width of the wedge groove 10 gradually decreases from bottom to top; wedge 11 is embedded in wedge groove 10, and the left and right sides of wedge 11 and the inside left and right inclined surfaces of wedge groove 10 are in sliding fit.

The upper surface of the rubber insert 2 is provided with a plurality of through holes which are formed from top to bottom and sequentially penetrate through the rubber insert 2, the butyl waterproof adhesive tape 4, the mortar protection filling layer 5, the cutting top plate 9 and the corner plate cutting 8, and the through holes are communicated with the wedge grooves 10; screw holes of the vertical through type are arranged in the wedge 11, and the screw holes are opposite to the through holes above the screw holes and are arranged in a one-to-one correspondence manner; a bolt 12 penetrates into the screw hole of the wedge block 11 from bottom to top and pulls up the wedge block 11, the head end of the bolt 12 penetrates into the wedge groove 10 and then penetrates out of the top surface of the rubber insert 2 through the through hole, a locking nut 13 is sleeved on the head end thread of the bolt 12, and the locking nut 13 is in compression contact with the top surface of the rubber insert 2; utilize lock nut 13 to revolve down continuously and produce to drawing effect, realize pulling up to wedge 11, wedge 11 extrudees angle board cutting 8 about this moment for angle board cutting 8 presents abduction effect, angle board cutting 8 extrudees angle board 7 to both sides simultaneously like this, utilize the pressure of increase to improve frictional force and realize fastening, can obtain comparatively stable bolt fastening effect this moment, rubber insert 2 obtains the bolt fastening effect, wholly need not to pre-buried metalwork in the building, can prevent like this or reduce because the building crack that pre-buried metalwork inflation led to the fact, then reduced the possibility that the damage appears in centering buried rubber waterstop 1, make waterproof effect better.

The wedge 11 is spaced from the buried rubber water stop 1 below, a water-swelling rubber strip 14 and a gap filling mortar layer 15 are further arranged between the wedge 11 and the buried rubber water stop 1, and the water-swelling rubber strip 14 and the gap filling mortar layer 15 are used for enhancing the waterproof effect.

The angle plate 7, the angle plate cutting 8 and the cutting top plate 9 are all made of steel materials.

The working principle of the utility model is as follows: this scheme lies in reducing metal built-in fitting, avoided leading to the fact the building crack because the metal inflation, improved the life of well buried rubber waterstop 1, and to the fixed effect of adopting bolt 12 and lock nut 13 of rubber abase 2, let voussoir 11 shift up based on the effect of pulling, make voussoir 11 extrude scute 8 to the left and right sides, make scute 8 present abduction effect, scute 8 extrudees scute 7 to both sides simultaneously like this, utilize the pressure of increase to improve frictional force and realize fastening, can obtain comparatively stable bolt-up effect this moment, rubber abase 2 obtains the bolt-up effect, wholly need not at the internal pre-buried metalwork of building.

Claims

1. The waterproof structure of the expansion joint comprises a lowest layer formed by a middle-buried rubber water stop, wherein the middle-buried rubber water stop is arranged in the expansion joint, and two sides of the middle-buried rubber water stop are pre-buried in a building body at two sides of the expansion joint; the building is characterized in that two corner plates which are symmetrically arranged left and right are arranged at the opening position above the expansion joint, each corner plate is composed of strip-shaped L-shaped angle irons, and the corner plates are respectively attached to building bodies at two sides of the expansion joint; strip-shaped corner plate cutting bars are embedded and arranged between the corner plates, and the corner plate cutting bars respectively prop against the side surfaces of the corner plates towards two sides; the top surface of the angle plate cutting is integrally formed with a flat cutting top plate, and the cutting top plate is pressed down to contact the angle plates at the left side and the right side; the top surface and two sides of the cutting top plate are covered and paved with mortar protection filling layers, the surfaces of the mortar protection filling layers are leveled and adhered with a layer of butyl waterproof adhesive tape, and rubber inserts are placed above the butyl waterproof adhesive tape; the bottom surface of the angle plate cutting is provided with a wedge groove with the same trend, and the width of the wedge groove gradually decreases from bottom to top; wedge blocks are embedded in the wedge grooves, and the left side surface and the right side surface of the wedge blocks are in sliding fit with the left inclined surface and the right inclined surface of the inner side of the wedge grooves; the upper surface of the rubber insert is provided with a plurality of through holes which are formed from top to bottom and sequentially penetrate through the rubber insert, the butyl waterproof adhesive tape, the mortar protection filling layer, the cutting top plate and the corner plate cutting, and the through holes are communicated with the wedge grooves; screw holes of the vertical through type are arranged in the wedge blocks, and the screw holes are opposite to the through holes above the screw holes and are arranged in a one-to-one correspondence manner; a bolt penetrates into the screw hole of the wedge block from bottom to top and pulls up the wedge block, the head end of the bolt penetrates into the wedge groove and then penetrates out of the top surface of the rubber insert block through the through hole, a locking nut is sleeved on the head end thread of the bolt, and the locking nut is in tight contact with the top surface of the rubber insert block.

2. The waterproof structure of an expansion joint according to claim 1, wherein an anti-cracking fiber layer is further arranged at intervals and pre-buried above the embedded rubber water stop in the building body, and the anti-cracking fiber layer is paved by polyester glass fiber cloth.

3. The waterproof structure of an expansion joint according to claim 1, wherein a plurality of diversion grooves are formed in the surface of the rubber insert.

4. The waterproof structure of the expansion joint according to claim 1, wherein the wedge block is spaced from the buried rubber water stop below, and a water-swelling rubber strip and a joint filling mortar layer are further arranged between the wedge block and the buried rubber water stop.