Deformation joint node and construction method thereof

Abstract

The invention relates to the technical field of building construction, and discloses a deformation joint node and a construction method thereof, and the deformation joint node is suitable for an unloading platform roof structure. Comprising a first structural beam, a second structural beam, a water stop structure, a fireproof structure and a drainage structure. The water stop structure is arranged at the top of the deformation joint so that water vapor can be prevented from entering the deformation joint, it is ensured that the deformation joint has good waterproof performance in long-term use, and leakage is avoided. By arranging the waterproof structure in the deformation joint, flame is effectively prevented from spreading through the deformation joint, the fireproof performance of a building is improved, and the drainage structure is arranged at the bottom of the deformation joint, so that water vapor can be timely guided and discharged through the drainage structure after the water stop structure of the deformation joint leaks, and the phenomenon of water accumulation in the deformation joint is avoided; and the structure is damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a deformation joint node and a construction method thereof. Background Art

[0002] In building design, the roof deformation joint is a key part for coping with the deformation of building structures caused by factors such as temperature changes and settlements.

[0003] Traditional deformation joint designs often have problems such as insufficient waterproof performance, poor structural stability, and lack of fireproof performance, leading to risks of roof leakage, structural damage, and even fire spread. Especially in areas such as unloading platforms that need to bear large loads and are frequently used, the design and construction requirements of deformation joints are higher. Summary of the Invention

[0004] In view of this, the present invention provides a deformation joint node and a construction method thereof to solve the problem that the deformation joints in the prior art are prone to risks such as roof leakage, structural damage, and even fire spread.

[0005] To solve the above technical problems, the technical solution of the present invention is as follows:

[0006] In a first aspect, the present invention provides a deformation joint node applicable to the roof structure of an unloading platform; including: a first structural beam, a second structural beam, a water stop structure, a fireproof structure, and a drainage structure; the first structural beam and the second structural beam are arranged relatively spaced apart to form a deformation joint in the middle; the water stop structure is arranged at the top of the deformation joint, and the water stop structure is adapted to seal the deformation joint to prevent water vapor from entering the deformation joint; the fireproof structure is arranged in the deformation joint, and the fireproof structure is adapted to prevent the spread of fire; both ends of the drainage structure are respectively connected to the first structural beam and the second structural beam, and are located at the bottom of the deformation joint, and the drainage structure is adapted to guide and discharge the water vapor in the deformation joint.

[0007] It has the following advantages:

[0008] By arranging a water stop structure at the top of the deformation joint to prevent water vapor from entering the deformation joint, it ensures that the deformation joint has good waterproof performance during long-term use and avoids leakage. By arranging a waterproof structure in the deformation joint, it effectively prevents the flame from spreading through the deformation joint, improves the fireproof performance of the building, and arranges a drainage structure at the bottom of the deformation joint, so as to ensure that after the water stop structure of the deformation joint leaks, the water vapor can be discharged in time through the guidance of the drainage structure, avoiding the phenomenon of water accumulation in the deformation joint and causing structural damage.

[0009] According to some embodiments of the present invention, the water stop structure includes a waterproof coiled material laid on the upper end surfaces of the first structural beam and the second structural beam, the waterproof coiled material straddling and covering the top of the deformation joint, the waterproof coiled material including a first coiled material and a second coiled material, and the first coiled material and the second coiled material being stacked.

[0010] According to some embodiments of the present invention, the water stop structure further includes two fixing steels and a water stop member. The two fixing steels are respectively arranged on the first structural beam and the second structural beam, and are oppositely arranged on both sides of the deformation joint. Two ends of the water stop member are respectively fixedly connected to the bottoms of the two fixing steels, and the water stop member is located above the waterproof coiled material.

[0011] According to some embodiments of the present invention, the cross section of the water stop member is arc-shaped and is arranged with the opening facing upwards.

[0012] According to some embodiments of the present invention, the water stop structure further includes a sealing member. Fixed grooves are respectively arranged on the opposite sides of the two fixing steels close to the deformation joint. Two ends of the sealing member are respectively clamped in the two fixed grooves. The sealing member is located above the water stop member, and the cross section of the sealing member is a V-shaped structure.

[0013] According to some embodiments of the present invention, the fireproof structure includes filled rock wool, and the filled rock wool is arranged in the deformation joint.

[0014] According to some embodiments of the present invention, the fireproof structure further includes a firestop member. Two ends of the firestop member are respectively connected to the lower end surfaces of the first structural beam and the second structural beam. The firestop member is located below the filled rock wool. The cross section of the firestop member is arc-shaped and is arranged with the opening facing downwards.

[0015] According to some embodiments of the present invention, the drainage structure includes a drainage trough and a drainage pipe. One side of the drainage trough is fixedly connected to the lower end surface of the first structural beam, and the other side of the drainage trough is horizontally movably connected to the lower end surface of the second structural beam; the drainage pipe is inserted into the bottom of the drainage trough to communicate with the drainage trough. A plurality of drainage pipes are provided and are arranged at intervals along the length direction of the drainage trough.

[0016] According to some embodiments of the present invention, the width of the drainage trough is greater than or equal to the width of the deformation joint, the depth of the drainage trough is greater than 120 mm, the wall thickness of the trough is 1.2 - 1.7 mm, and both the drainage trough and the drainage pipe are made of aluminum alloy.

[0017] In a second aspect, the present invention further provides a construction method for a deformation joint node, including the following steps:

[0018] Install a roofing structure on the first structural beam and the second structural beam;

[0019] Construct the decorative layer of the roof, lay the waterproof coiled material, pour the concrete surface layer above the waterproof coiled material, and reserve notches on both sides of the deformation joint;

[0020] Install and fix steel materials in the reserved notches, place the water stop on the upper side of the waterproof coiled material, and fix both ends of the water stop to the fixed steel materials. Install a seal between the two fixed steel materials;

[0021] Install and fill rock wool from the bottom to the middle of the deformation joint, and set a fire stop at the bottom of the deformation joint;

[0022] Install a drainage structure directly below the deformation joint. Description of the Drawings

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a structural view of a deformation joint node of an embodiment of the present invention.

[0025] Explanation of the Reference Numerals in the Drawings

[0026] 1. First structural beam; 2. Second structural beam; 3. Waterproof coiled material; 4. Fixed steel material; 5. Water stop; 6. Seal; 7. Filled rock wool; 8. Fire stop; 9. Drainage trough; 10. Drain pipe. Detailed Embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Referring to Figure 1 As shown, in the first aspect of the present invention, the present invention provides a deformation joint node applicable to the roof structure of a unloading platform, including: a first structural beam 1, a second structural beam 2, a water-stop structure, a fire-proof structure, and a drainage structure; the first structural beam 1 and the second structural beam 2 are arranged relatively at intervals to form a deformation joint in the middle; the water-stop structure is arranged at the top of the deformation joint, and the water-stop structure is suitable for sealing the deformation joint to prevent water vapor from entering the deformation joint; the fire-proof structure is arranged in the deformation joint, and the fire-proof structure is suitable for preventing the spread of fire; both ends of the drainage structure are respectively connected to the first structural beam 1 and the second structural beam 2, and are located at the bottom of the deformation joint, and the drainage structure is suitable for guiding and discharging the water vapor in the deformation joint.

[0032] Specifically, by arranging a water-stop structure at the top of the deformation joint to prevent water vapor from entering the deformation joint, it is ensured that the deformation joint has good waterproof performance during long-term use and leakage is avoided. By arranging a fire-proof structure in the deformation joint, it can effectively prevent the flame from spreading through the deformation joint, improve the fire-proof performance of the building, and arrange a drainage structure at the bottom of the deformation joint, so as to ensure that after the water-stop structure of the deformation joint leaks, the water vapor can be discharged in time through the guidance of the drainage structure, and the phenomenon of water accumulation in the deformation joint is avoided, resulting in damage to the structure.

[0033] It is understandable that the width of the deformation joint is 100 mm. The two sides of the deformation joint are the roof structures, which adopt reinforced concrete structures. The roof slab uses structural slope setting with a slope rate of 1%.

[0034] In some embodiments of the present invention, the water stop structure includes a waterproof coiled material 3 laid on the upper end surfaces of the first structural beam 1 and the second structural beam 2. The waterproof coiled material 3 straddles and covers the top of the deformation joint. The waterproof coiled material 3 includes a first coiled material and a second coiled material, and the first coiled material and the second coiled material are stacked.

[0035] Specifically, a roof decorative layer is provided on the roof structure. The construction method of the roof decorative layer from bottom to top is as follows:

[0036] a. A 20-mm-thick 1:3 cement mortar leveling layer;

[0037] b. A layer of 3-mm-thick modified asphalt waterproof coiled material 3;

[0038] c. A layer of 3.5-mm-thick modified asphalt waterproof coiled material for road bridges 3;

[0039] d. One layer of empty-laid oil felt;

[0040] e. A 150-mm-thick C30 fine aggregate concrete surface layer with anti-slip grooves on the surface, 20 mm wide and 15 mm deep. A φ8@150-mm steel mesh is arranged in the upper layer. The surface layer is provided with separation joints at 6 m × 6 m. At the separation joints, φ20 load transfer bars are arranged in the middle, with a length of 800 mm and a spacing of 300 mm.

[0041] Among them, the modified asphalt waterproof coiled material 3 and the modified asphalt waterproof coiled material for road bridges 3 are the first coiled materials. Flexible materials such as the waterproof coiled material 3 and the oil felt straddle the deformation joint. A second coiled material is provided at the deformation joint, and the second coiled material extends to both sides of the deformation joint, and the length of both ends from the deformation joint is 600 mm. When the second coiled material, the first coiled material, and the oil felt straddle the deformation joint, they are concave in the deformation joint to ensure that they can deform with the thermal expansion and contraction or settlement of the first structural beam 1 and the second structural beam 2.

[0042] In some embodiments of the present invention, the water stop structure further includes two fixed steel materials 4 and a water stop member 5. The two fixed steel materials 4 are respectively arranged on the first structural beam 1 and the second structural beam 2, and are oppositely arranged on both sides of the deformation joint. Both ends of the water stop member 5 are fixedly connected to the bottoms of the two fixed steel materials 4, and the water stop member 5 is located above the waterproof coiled material 3.

[0043] Specifically, the fine aggregate concrete surface layer of the roof decorative layer reserves not to construct the notch within a range of 300 mm on both sides of the deformation joint. The notch structure is composed of No. 1 steel bar, No. 2 steel bar, No. 3 steel bar, horizontal steel bar, positioning steel plate, fixed steel material 4, notch concrete, etc.

[0044] Fixing steel bars 4 are arranged on both sides of the top inside the deformation joint, and positioning steel plates are arranged at the bottom of the fixing steel bars 4 for positioning. The top of the fixing steel bars 4 is flush with the top of the roof decoration layer. The No. 1 steel bars are in a "U" shape, with the opening of the "U" shape facing the deformation joint, and the tails of the openings are respectively welded to the sides of the fixing steel bars 4 and the positioning steel plates, and are arranged at φ16@200mm. The No. 3 steel bars are in a "6" shape, which is horizontally arranged after rotating the "6" shape by 90°, and are arranged at φ12@200mm. Six φ12 horizontal steel bars are arranged at the corners inside the No. 3 steel bars. Among them, the two horizontal steel bars in the upper row close to the deformation joint pass through the inside of the "U" shape of the No. 1 steel bars. The notch concrete adopts cast-in-place milling fiber concrete, which can improve the flexural tensile strength, crack resistance, fatigue resistance, wear resistance and impact resistance of the concrete.

[0045] In some embodiments of the present invention, the cross-section of the water stop member 5 is arc-shaped and the opening is arranged upwards.

[0046] In some embodiments of the present invention, the water stop structure further includes a seal member 6. Fixed grooves are provided on the opposite sides of the two fixing steel bars 4 close to the deformation joint. The two ends of the seal member 6 are respectively clamped in the two fixed grooves. The seal member 6 is located above the water stop member 5, and the cross-section of the seal member 6 is in a V-shaped structure.

[0047] Specifically, the seal member 6 is a sealed rubber strip, which plays the role of waterproof sealing and adapting to deformation. The water stop member 5 is arranged between the finished sealed rubber strip and the waterproof coiled material 3 inside the deformation joint to improve the waterproof performance of the deformation joint.

[0048] The reinforcing steel bars are composed of No. 2 embedded steel bars, embedded horizontal steel bars and horizontal steel bars. The reinforcing steel bars connect the first structural beam 1, the second structural beam 2, the roof decoration layer and the notch structure to strengthen the overall mechanical properties. Among them, the No. 2 embedded steel bars are in a "C" shape with the opening facing downwards, and are embedded at φ20@200mm during the construction of the roof structure; the embedded horizontal steel bars have a specification of φ20mm and are arranged at the two lower corners inside the No. 2 embedded steel bars, and are embedded simultaneously during the construction of the roof structure; the horizontal steel bars at the two upper corners inside the No. 2 embedded steel bars are respectively tied and constructed during the construction of the roof decoration layer and the notch structure.

[0049] A ceiling decoration layer is arranged on the lower end surfaces of the first structural beam 1 and the second structural beam 2. The construction method of the ceiling decoration layer is as follows from top to bottom:

[0050] a. A layer of prime cement slurry is flicked;

[0051] b. The 3mm thick base anti-cracking putty is scraped flat in batches;

[0052] c. The 2mm thick surface water-resistant putty is scraped flat in batches;

[0053] d. Apply a white paint finish.

[0054] In some embodiments of the present invention, the fireproof structure includes a rock wool filling 7, and the rock wool filling 7 is arranged in the expansion joint.

[0055] In some embodiments of the present invention, the fireproof structure further includes a firestop member 8. The two ends of the firestop member 8 are respectively connected to the lower end surfaces of the first structural beam 1 and the second structural beam 2. The firestop member 8 is located below the rock wool filling 7. The cross-section of the firestop member 8 is in an arc-shaped structure and is arranged with the opening facing downwards.

[0056] Specifically, the rock wool filling 7 is filled in the middle of the expansion joint to achieve the effect of heat preservation and heat insulation. The firestop member 8 is arranged at the bottom of the expansion joint. The firestop member 8 can prevent the flame from spreading through the expansion joint, thereby protecting other parts of the building from being damaged by fire.

[0057] In some embodiments of the present invention, the drainage structure includes a drainage trough 9 and a drainage pipe 10. One side of the drainage trough 9 is fixedly connected to the lower end surface of the first structural beam 1, and the other side of the drainage trough 9 is horizontally movably connected to the lower end surface of the second structural beam 2; the drainage pipe 10 is inserted into the bottom of the drainage trough 9 to communicate with the drainage trough 9. A plurality of drainage pipes 10 are provided and are arranged at intervals along the length direction of the drainage trough 9.

[0058] According to some embodiments of the present invention, the width of the drainage trough 9 is greater than or equal to the width of the expansion joint, the depth of the drainage trough 9 is greater than 120 mm, the wall thickness of the trough is 1.2 - 1.7 mm, and both the drainage trough 9 and the drainage pipe 10 are made of aluminum alloy.

[0059] Specifically, the drainage structure is arranged directly below the expansion joint and consists of a drainage trough 9, a drainage pipe 10, etc. The width of the drainage trough 9 is greater than or equal to the width of the expansion joint, the depth of the drainage trough 9 is greater than or equal to 120 mm, the wall thickness of the drainage trough 9 is 1.5 mm, it is made of aluminum alloy, and the drainage slope is 1%; the cross-sectional shape of the drainage trough 9 is in an inverted "several" shape. One end is directly fixed with M6 expansion bolts, and the other end is fixed with a galvanized flat steel pressing strip by M6 expansion bolts, and then the drainage ditch is supported by the flat steel pressing strip. The spacing of the expansion bolts is 300 mm, so as to ensure that the drainage trough 9 can move freely in the horizontal direction with the thermal expansion, contraction or settlement of the roof structure. The drainage pipe 10 is arranged below the drainage ditch, with a diameter of DN75 and a material of U-PVC. A plurality of drainage pipes 10 are provided and arranged at intervals. The drainage trough 9 can collect the rainwater leaking from the expansion joint and then converge to the drainage pipe 10 and drain away.

[0060] In a second aspect, the present invention also provides a construction method for a deformation joint node, including the following steps:

[0061] Install the roof structure on the first structural beam 1 and the second structural beam 2;

[0062] Construct the decorative layer of the roof, lay the waterproof coiled material 3, pour the concrete surface layer above the waterproof coiled material 3, and reserve notches on both sides of the deformation joint;

[0063] Install and fix the steel material 4 in the reserved notch, set the water stop member 5 above the waterproof coiled material 3, and fix both ends of the water stop member 5 to the fixed steel material 4, and install the seal member 6 between the two fixed steel materials 4;

[0064] Install and fill the rock wool 7 from the bottom to the middle of the deformation joint, and set the fire retardant member 8 at the bottom of the deformation joint;

[0065] Install the drainage structure directly below the deformation joint.

[0066] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A deformation joint node, suitable for the roof structure of an unloading platform; characterized in that: include: A first structural beam (1) and a second structural beam (2), wherein the first structural beam (1) and the second structural beam (2) are arranged relatively spaced apart to form a deformation joint in the middle; A water-stop structure is arranged at the top of the deformation joint, and the water-stop structure is suitable for sealing the deformation joint to prevent water vapor from entering the deformation joint; A fireproof structure is provided in the deformation joint, the fireproof structure is suitable for preventing the spread of fire; A drainage structure, wherein both ends of the drainage structure are respectively connected to the first structural beam (1) and the second structural beam (2), and are located at the bottom of the deformation joint, and the drainage structure is suitable for guiding and draining water vapor in the deformation joint.

2. The deformation joint node according to claim 1, characterized in that: The water-stop structure comprises a waterproof roll (3) laid on the upper end surfaces of the first structural beam (1) and the second structural beam (2), the waterproof roll (3) being arranged across and covering the top of the deformation joint, the waterproof roll (3) comprising a first roll and a second roll, the first roll and the second roll being stacked.

3. The deformation joint node according to claim 2, characterized in that: The water-stop structure also includes two pieces of fixed steel (4) and a water-stop component (5). The two pieces of fixed steel (4) are respectively arranged on the first structural beam (1) and the second structural beam (2), and are relatively arranged on both sides of the deformation joint. The two ends of the water-stop component (5) are respectively fixedly connected to the bottom of the two pieces of fixed steel (4). The water-stop component (5) is located above the waterproof membrane (3).

4. The deformation joint node according to claim 3, characterized in that: The cross section of the water stop member (5) is in the shape of an arc, and the opening is arranged upward.

5. The deformation joint node according to claim 4, characterized in that: The water-stop structure also includes a sealing member (6). The two fixing steel members (4) are provided with fixing grooves on opposite sides of the deformation joint. The two ends of the sealing member (6) are respectively clamped in the two fixing grooves. The sealing member (6) is located above the water-stop member (5). The cross section of the sealing member (6) is a V-shaped structure.

6. The deformation joint node according to claim 1, characterized in that: The fireproof structure comprises filling rock wool (7), and the filling rock wool (7) is arranged in the deformation joint.

7. The deformation joint node according to claim 6, characterized in that: The fireproof structure further comprises a fire-blocking member (8), the two ends of which are respectively connected to the lower end surfaces of the first structural beam (1) and the second structural beam (2), the fire-blocking member (8) is located below the filled rock wool (7), the cross-section of the fire-blocking member (8) is an arc-shaped structure, and the opening is arranged downward.

8. The deformation joint node according to claim 1, characterized in that: The drainage structure comprises a drainage trough (9) and a drainage pipe (10); one side of the drainage trough (9) is fixedly connected to the lower end surface of the first structural beam (1), and the other side of the drainage trough (9) is horizontally movably connected to the lower end surface of the second structural beam (2); the drainage pipe (10) is inserted into the bottom of the drainage trough (9) to communicate with the drainage trough (9); a plurality of drainage pipes (10) are provided and are arranged at intervals along the length direction of the drainage trough (9).

9. The deformation joint node according to claim 8, characterized in that: The width of the drainage groove (9) is greater than or equal to the width of the deformation joint, the depth of the drainage groove (9) is greater than 120 mm, the thickness of the groove wall is 1.2-1.7 mm, and the drainage groove (9) and the drainage pipe (10) are both made of aluminum alloy.

10. A construction method for a deformation joint node, characterized in that: The following steps are involved: Installing a roof structure on the first structural beam (1) and the second structural beam (2); Constructing the roof decoration layer, laying the waterproofing membrane (3), pouring the concrete surface layer on the waterproofing membrane (3), and reserving notches on both sides of the deformation joint; A fixed steel material (4) is installed in the reserved notch, a water stop member (5) is arranged above the waterproof coiled material (3), and both ends of the water stop member (5) are fixedly connected to the fixed steel material (4), and a sealing member (6) is installed between two pieces of the fixed steel material (4); Installing rock wool (7) from the bottom to the middle of the deformation joint, and providing a fire barrier (8) at the bottom of the deformation joint; A drainage structure is installed directly below the deformation joint.

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