CN102677832B - Roof deformation joint cornice structure for water resistance and construction method for roof deformation joint cornice structure - Google Patents

Abstract

The invention relates to a roof deformation seam cornice structure for waterproofing, the cornice structure is located at the deformation seam (14) of the roof of a building, and comprises: a deformation seam cover plate (11) covering the deformation seam (14) ) and the gutter cover plate (16) covering the gap between the gutters on both sides of the deformation joint (14) on the roof of the building for drainage, it is characterized in that: the cornice structure also includes: The fascia plate (12) on the bottom surface of the deformation joint cover plate (11) and the water-stop component (13) fixed on the upper surface of the gutter cover plate (16), the fascia plate (12) is located at the water-stop component (13) outside and keep a distance from the water stop member (13). The invention also relates to a construction method for a waterproof roof deformation seam cornice structure. The invention provides a roof deformation seam cornice structure with simple structure, low manufacturing cost and adaptability to the deformation of building structure caused by stress.

Description

A roof deformation joint cornice structure for waterproofing and its construction method

technical field

The invention belongs to the field of building auxiliary facilities, and in particular relates to a waterproof roof deformation joint cornice structure and a construction method thereof, and is especially suitable for large-scale industrial factories and public buildings using profiled steel plate roofs.

Background technique

Due to the influence of factors such as temperature changes, uneven settlement and earthquakes, additional stress will be generated inside the structure of the building, which will have a destructive effect on the building structure. In order to reduce the impact of additional stress on the building, the deformation-sensitive part is disconnected in advance in the design, and the building is divided into several independent parts, that is, the structural gap is reserved. This kind of gap is called the deformation joint to ensure There is enough deformation space between independent parts of the building without damage or cracks due to factors such as temperature changes, uneven settlement, and earthquakes. This technology of reserving deformation joints between buildings is used in large-scale industries. Widely used in factories.

However, due to the deformation joints left between the buildings, if the deformation joints are not handled properly, there will be a risk of rain and wind leakage. Therefore, it is necessary to install a cover plate on the steel plate of the roof of the large industrial factory to prevent rainwater from entering the building. However, the current technology of using cover plates to prevent water leakage from deformation joints is only on the upper part of the steel plate roof, and the closure of the cornice of deformation joints is neglected, which makes the sealing structure unreasonable and leads to sealing failure, which in turn allows rainwater to enter Inside buildings such as factories.

In order to achieve the purpose of closing the cornice of the deformation joint, the measures adopted in the existing construction projects are: a single plate is fixed on the bottom surface of the cover plate of the deformation joint and the upper surface of the gutter cover plate to close the cornice of the deformation joint. However, this method cannot adapt to the deformation of the stress steel structure caused by factors such as temperature changes, uneven settlement, and earthquakes, that is, the deformation of the steel structure will make the single plate easily damaged, thus losing the sealing and waterproof effect.

In order to achieve the closure of the cornice of the deformation joint, and at the same time, the closure device will not be deformed by the stress caused by factors such as temperature changes, uneven settlement, and earthquakes. At present, there are mainly the following related patents in China:

Application (patent) number: 200620069546.3 Patent name: Construction deformation joint device. This patent provides a deformation seam device consisting of a panel, a base, an adjustment mechanism made of springs, and bolts. This patent can meet the requirements for building settlement deformation, displacement deformation and expansion and contraction deformation. However, the deformation joint device provided by this patent does not protect the deformation joint cornice, and it is easy for rainwater to enter the interior of the building from the deformation joint cornice, thus losing the waterproof effect.

Application (Patent) No.: 190610017588.9 Patent Name: Leakage-proof structure for deformation joints on the floor or roof. This patent provides a method of setting a cover plate above the deformation joint, setting a drainage ditch on the outer side of the deformation joint, and setting a support foot buckled down in the drainage ditch at the lower outer end of the cover plate. A waterproof layer is laid on the surface of the drainage ditch, and a waterproof isolation layer located on the upper surface of the waterproof layer is provided at the place where the cover plate and the bottom of its supporting feet are in contact with the drainage ditch, and a drainage pipe leading to the underground drainage system is provided at the bottom of the drainage ditch Structure.

However, the structure provided by this patent is to close the deformation joint cornice by setting a waterproof isolation layer and a waterproof layer between the cover plate and the drainage pipe, thereby preventing rainwater from entering the interior of the building from the gap between the cover plate and the drainage ditch. In fact, it is the same as fixing a single plate on the bottom surface of the deformation seam cover plate and the surface of the gutter cover plate to close the cornice of the deformation seam. Therefore, it is still impossible to solve the problem of dislocation of the buildings on both sides of the deformation joint due to the stress caused by factors such as temperature changes, uneven settlement, and earthquakes, and then cause the waterproof isolation layer between the cover plate and the drain to separate or even fall off, resulting in waterproofing. The insulating layer loses its waterproofing effect, allowing rainwater to enter the building through the gap between the cover plate and the gutter.

In addition, the structure provided by this patent is complex and uses too many materials, such as caulking rubber, galvanized iron sheets, asphalt hemp, patterned hard rubber plates, aluminum alloy brackets, etc., which makes the manufacturing cost too high and does not conform to the construction of an economical society. the goal of.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a roof deformation joint structure with simple structure, low manufacturing cost and the ability to adapt to the deformation of the building structure caused by stress so as to ensure the long-term stability of the deformation joint structure. In addition, the present invention also provides A construction method for a roof deformation joint structure.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A roof deformation joint eaves structure for waterproofing, comprising a deformation joint on the roof of a building, a deformation joint cover plate covering the surface of the deformation joint, and covering plates on both sides of the deformation joint on the roof of the building for drainage The gutter cover plate in the gap between the gutters is characterized in that it also includes a fascia plate fixed on the bottom surface of the deformation joint cover plate and a water-stop component fixed on the upper surface of the gutter cover plate, the seal The eaves are located outside the water-stop component and keep a distance from the water-stop component.

The purpose of setting the deformation joint cover plate is to cover the deformation joint so as to prevent rainwater from entering; The deformation joint cover plate is connected, and the water-stop component is only connected with the gutter cover plate to prevent rainwater from entering the building from the deformation joint cornice, that is, the gap between the deformation joint cover plate and the gutter cover plate, and to solve the problem of internal stress. And the problem that makes the waterproof facility between the cover plate and the drain fail.

Among them, roof drainage is divided into organized drainage and unorganized drainage (free drainage). Among them, organized drainage generally collects rainwater in the gutter and then drains it through rainwater pipes. The ditch that collects rainwater is called gutter. The gutter cover is the plate covering the gap between the two gutters on both sides of the deformation joint.

Wherein, the front elevation of the fascia board is rectangular, and the side elevation is shape.

形、侧立面呈

形，所述

形开口与天沟盖板宽度相同。所述封檐板由封檐板突出三角、封檐板连接翼和封檐板下翼三个部分组成。所述止水部件由止水部件上翼、止水部件连接翼和止水部件下翼三个部分组成。The front facade of the water-stop component is in the form of

shape, side elevation

shape, the

The opening is the same width as the gutter cover. The fascia board is composed of three parts: the protruding triangle of the fascia board, the connecting wing of the fascia board and the lower wing of the fascia board. The water-stopping part is composed of three parts: the upper wing of the water-stopping part, the connecting wing of the water-stopping part and the lower wing of the water-stopping part.

More preferably, the junction of the fascia and the deformation joint cover and the junction of the water-stop component and the gutter cover are sealed with a sealing paste. The purpose is to seal the building completely with a sealant so that rainwater does not seep into the building through any tiny gaps.

More preferably, the width of the fascia connecting wing of the fascia is greater than or equal to 20mm, and the width of the fascia is less than or equal to the width of the deformation joint cover. The purpose is that if the connecting wing of the fascia is too narrow, it will affect the connection firmness of the remaining deformation joint cover plates.

More preferably, the width of the connecting wing of the water-stop component, the height of the upper wing of the water-stop component, and the width of the lower wing of the water-stop component are greater than or equal to 30 mm, and the height of the upper wing of the water-stop component is smaller than the gutter cover plate The vertical distance from the upper surface to the bottom surface of the deformation joint cover. The purpose is to ensure the firmness of the connection between the water-stop component and the gutter cover and the waterproof effect of the water-stop component.

More preferably, the deformation joint cover plate, the fascia plate and the water-stop component are all made of thin metal plates and subjected to anti-corrosion treatment, with a thickness of 0.5-1.2 mm. The purpose is to reduce the manufacturing cost and make the deformation seam structure anti-corrosion and durable.

More preferably, the sealing paste is one of the following: silicone building sealing paste, polysulfide building sealing paste, polyurethane building sealing paste, acrylic building sealing paste, chlorosulfonated polyethylene building sealing paste, butyl Rubber building sealant, asphalt building sealant.

Wherein, for large-scale industrial plants and public buildings whose roofs are covered with profiled steel plates, the deformation joint cover plate should at least be able to cover one peak of each profiled steel plate on both sides of the deformation joint. The purpose is to cover the gaps formed by reserved deformation joints, so as to prevent rainwater from entering the interior of the building.

More preferably, the fascia board and the deformation seam cover board can be fixed by rivets. The purpose is to fix the fascia so that the fascia is only connected and in contact with the deformation joint cover.

More preferably, both sides of the deformation joint cover plate can be fixed to the profiled steel plate by rivets. The purpose is to fix the deformation joint cover plate on the steel plate, so as to achieve the purpose of preventing rainwater from entering.

In addition, in order to realize the above-mentioned roof deformation joint cornice structure provided by the present invention, the present invention also provides a construction method for a waterproof roof deformation joint cornice structure, which includes covering the deformation joint cover plate on the deformation joint located on the roof of the building Covering the gutter cover on the surface of the gap between the gutters on both sides of the roof deformation joint for drainage, it is characterized in that: it also includes the following steps: 1. Fixing the fascia on the bottom surface of the deformation joint cover ; Two, the water-stop component is connected to the upper surface of the gutter cover.

More preferably, the fascia is only connected to the deformation seam cover, and the water-stop component is only connected to the gutter cover.

Aiming at the problem of water leakage at the eaves of steel plate roof deformation joints, the invention provides a roof deformation joint eaves structure for waterproofing. In addition, the invention also provides a construction method for the roof deformation joint structure. The invention has the advantages of simple structure, low manufacturing cost, and the fascia board can freely displace with the roof structure, and the water-stop parts can freely displace with the drainage gutter. The resulting deformation of the building structure ensures the long-term stability of the deformation joint structure.

Description of drawings

Fig. 1 is the front view of the deformation seam cornice structure in the present invention.

Fig. 2 is the right side view of the deformation seam cornice structure in the present invention.

Fig. 3 is a schematic diagram of the deformation seam cover plate in the present invention.

Fig. 4 is a schematic diagram of the fascia board in the present invention.

Fig. 5 is a schematic diagram of a water-stopping component in the present invention.

In the figure, 11. Deformation joint cover plate 12. Fascia plate 13. Water stop component 14. Deformation joint 15. Profiled steel plate 16. Gutter cover plate 17. Epoxy structural adhesive 18. Sealing paste 19. Rivet 20. Rivet 121. Fascia protruding triangle 122. Fascia connection wing 123. Fascia lower wing 131. Water-stop component lower wing 132. Water-stop component connection wing 133. Water-stop component lower wing.

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

Example

The existing W600-type steel plate roof is adopted, and the roof deformation joint cornice closure structure is implemented.

(1) Component production

The front view of the deformation seam cover 11 is in the shape of a treasure cover, and the width of the deformation seam cover 11 should be able to cover two peaks of the profiled steel plate 15 located on both sides of the deformation seam 14 .

形，所述封檐板12的封檐板连接翼122宽度40mm。The facade of the fascia 12 has a rectangular shape, the distance between the fascia 12 and the end of the deformation joint cover 11 is not less than 20mm, and the protruding triangle at the midpoint of the top of the fascia 12 is the fascia protruding triangle 121 , the bottom of the protruding triangle 121 of the fascia board is 100mm long and 70mm high, and the side elevation is

Shape, the width of the fascia connecting wing 122 of the fascia 12 is 40mm.

形，侧立面呈

形，止水部件连接翼132宽度、止水部件上翼131高度及止水部件下翼133宽度均不小于30mm，此处设置为50mm。The front elevation of the water-stop component 13 is in the form of

shape, side elevation

The width of the connecting wing 132 of the water-stop component, the height of the upper wing 131 of the water-stop component, and the width of the lower wing 133 of the water-stop component are all not less than 30mm, which is set to 50mm here.

The deformation joint cover plate 11, the fascia plate 12 and the water-stop component 13 are all made of galvanized sheet with a thickness of 0.8mm.

(2) Construction of water-stop parts

First, clean the installation interface of the gutter cover 16, then apply epoxy structural glue 17 on the lower surface of the water-stop component connecting wing 132, paste the lower surface of the water-stop component 13 on the upper surface of the gutter cover 16, and finally seal it with The paste 18 seals the joints between the water-stop component 13 and the top and side surfaces of the gutter cover 16 .

The installation position of the water-stop component 13: the vertical projection line of the upper wing 131 of the water-stop component on the upper surface of the gutter cover 16 is located inside the vertical projection line of the lower wing 123 of the fascia plate on the upper surface of the gutter cover 16, and the water-stop The distance between the component upper wing 131 and the fascia lower wing 123 is not less than 20mm, here it is designed to be 40mm.

It is ensured that the water stop component 13 is only connected and in contact with the gutter cover 16 .

(3) Fascia board construction

Install the fascia plate 12 on the bottom surface of the deformation joint cover plate 11, and connect the fascia connecting wing 122 to the deformation joint cover plate 11 through rivets 19, the distance between the rivets 19 is 30-100mm, and here The distance between the rivets 19 is 50 mm, and the vertical distance between the bottom edge of the fascia lower wing 123 and the upper surface of the gutter cover plate 16 is 30 mm. The junction of the fascia board 12 and the deformation joint cover plate 11 and the rivet 19 are all covered with building sealant 18 and sealed.

The installation position of the fascia board 12: the distance from the fascia board 12 to the end of the deformation joint cover board 11 is 40mm, and the vertical projection line of the fascia board lower wing 123 on the upper surface of the gutter cover board 16 is located at the upper wing 131 of the water-stopping component in the gutter On the outer side of the vertical projection line of the upper surface of the cover plate 16, the distance between the lower wing 123 of the fascia plate and the upper wing 131 of the water-stop component is not less than 20 mm, which is set to 40 mm here.

Ensure that the fascia board 12 is only connected and in contact with the deformation joint cover board 11 .

(4) Construction of deformation joint cover plate

The upper end of the deformation seam cover 11 is fixedly connected with the lower end of another deformation seam cover 11 through rivets 20, and the two sides of the deformation seam cover 11 are fixedly connected with the crest of the profiled steel plate 15 through rivets 20, and the distance between the rivets 20 is 80mm-500mm , here is set to 100mm, and the overlapping parts between the deformation joint cover plates 11 and the rivets 20 are all covered with building sealant 18 and closed.

The installation position of the deformation joint cover plate 11: the lower end of the deformation joint cover plate 11 protrudes from the side of the profiled steel plate 15 close to the gutter end by no less than 50 mm, which is set to 50 mm here.

The sealing paste 18 is made of silicone building sealing paste, and the rivets 19 and 20 are aluminum blind rivets.

The cornice of the roof deformation joint after implementing the above structure provides a roof deformation joint structure with simple structure, low manufacturing cost, and adapting to the deformation of the building structure caused by stress, so as to ensure the long-term stability of the deformation joint structure.

Claims (7)

1. A roof deformation joint cornice structure for waterproofing, the cornice structure is located at the deformation joint (14) of the roof of the building, comprising: a deformation joint cover plate (11) covering the deformation joint (14) And the gutter cover plate (16) covering the gap between the gutters on both sides of the deformation joint (14) on the roof of the building for drainage, characterized in that: The eaves structure also includes: a fascia (12) fixed to the bottom surface of the deformation joint cover (11) and a water-stop component (13) fixed to the upper surface of the gutter cover (16), the The fascia board (12) is located outside the water-stop component (13) and keeps a distance from the water-stop component (13); The fascia (12) is composed of fascia protruding triangles (121), fascia connecting wings (122) and fascia lower wings (123); Wing (131), water-stop component connecting wing (132) and water-stop component lower wing (133); the deformation joint cover plate (11), fascia plate (12) and water-stop component (13) are all made of metal A thin plate with a thickness of 0.5-1.2mm, the front elevation of the fascia is rectangular, and the side elevation is shape, the front facade of the water-stop component is

shape, side elevation

shape, the

The opening is the same width as the gutter cover. 2. A roof deformation seam cornice structure for waterproofing according to claim 1, characterized in that: the junction of the fascia (12) and the deformation seam cover (11) and the water-stopping parts (13) Seal the junction with the gutter cover (16) with sealing paste (18). 3. A roof deformation seam cornice structure for waterproofing according to claim 2, characterized in that: the sealant (18) is one of the following: silicone building sealant, polysulfide building Sealing paste, polyurethane building sealant, acrylic building sealant, chlorosulfonated polyethylene building sealant, butyl rubber-based building sealant, asphalt-based building sealant. 4. A roof deformation seam cornice structure for waterproofing according to claim 1, characterized in that: the width of the fascia connecting wing (122) of the fascia (12) is greater than or equal to 20mm, and the The width of the fascia board (12) is smaller than or equal to the width of the deformation joint cover board (11). 5. A roof deformation seam cornice structure for waterproofing according to claim 1, characterized in that: the width of the water-stop connecting wing (132) of the water-stop component (13), the upper wing of the water-stop component The height of (131) and the width of the lower wing (133) of the water-stop component are greater than or equal to 30 mm, and the height of the upper wing (131) of the water-stop component is less than the upper surface of the gutter cover (16) to the bottom surface of the deformation joint cover (11) the vertical distance. 6. A construction method for waterproof roof deformation joint cornice structure as claimed in claim 1, comprising covering the deformation joint cover plate (11) on the deformation joint (14) located on the roof of the building, and covering the gutter The cover plate (16) covers the gap between the gutters used for drainage on both sides of the deformation joint (14) on the roof, and it is characterized in that: the construction method also includes the following steps, 1. Fix the fascia (12) to the bottom surface of the deformation joint cover (11); 2. Connect the water-stop component (13) to the upper surface of the gutter cover (16). 7. A construction method for a waterproof roof deformation joint cornice structure according to claim 6, characterized in that: the fascia plate (12) is connected with the deformation joint cover plate (11), and the water stop Part (13) is connected to the gutter cover (16).

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