Extra-large-area reinforced concrete upper cover top plate expansion joint structure

Abstract

The utility model provides an expansion joint structure of an ultra-large-area reinforced concrete upper cover top plate, which belongs to the field of building construction and comprises an upper cover top plate, an expansion joint, a thick building retaining wall, a cover plate and a drainage component. A heightened reinforced concrete layer higher than the top plate surface is arranged at the expansion joint of the upper cover top plate; the thick retaining walls are arranged along the two sides of the heightened reinforced concrete layer; the cover plate covers the upper portions of the thick building retaining walls on the two sides. The drainage assembly is arranged below the expansion joint; the drainage assembly comprises a water receiving tank, two water baffles, a water receiving tank hanging bracket and a drainage pipe assembly; the water baffle is fixed in a manner of inclining inwards along the two side walls of the expansion joint at an angle of 30-60 degrees; the water receiving tank hanging bracket is arranged along the lower part of the expansion joint; the water receiving tank is supported on the water receiving tank hanging bracket, and is arranged right opposite to the lower part of the expansion joint in the same direction as the expansion joint; according to the utility model, the high requirements of floor deformation and crack prevention and water and leakage prevention of the reinforced concrete upper cover top plate with an ultra-large area can be simultaneously met.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to an expansion joint structure of a super-large area reinforced concrete upper cover top plate. Background Art

[0002] Installing expansion joints at appropriate locations along the construction joints of buildings or structures can effectively prevent cracks or damage to structural components due to temperature fluctuations (thermal expansion and contraction). Expansion joints separate building components above the foundation, such as walls, floors, and roofs (except wooden roofs), into two independent sections, allowing the building or structure to expand and contract horizontally along its length. For very large reinforced concrete roof slabs, installing expansion joints is a crucial measure to prevent deformation and cracking. Furthermore, building structures place higher demands on the waterproofing of the roof slab.

[0003] Due to their large area, expansion joints in ultra-large reinforced concrete roof slabs not only have higher requirements for preventing floor deformation and cracking, but also for waterproofing and anti-leakage performance. However, existing expansion joint structures struggle to simultaneously meet these stringent requirements for preventing floor deformation and cracking, as well as waterproofing and anti-leakage performance. Summary of the Invention

[0004] In order to overcome the problems existing in the background technology, the utility model provides an expansion joint structure of an ultra-large area reinforced concrete upper cover top plate, which can simultaneously meet the high requirements of preventing floor deformation, cracks and waterproofing and leakage prevention of ultra-large area reinforced concrete upper cover top plates.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] A super-large area reinforced concrete upper cover top plate expansion joint structure, comprising an upper cover top plate, an expansion joint, a thick masonry retaining wall, a cover plate and a drainage assembly; the upper cover top plate is provided with a raised reinforced concrete layer higher than the top plate surface at the location where the expansion joint is opened; the thick masonry retaining wall is arranged along both sides of the raised reinforced concrete layer; the cover plate covers the top of the thick masonry retaining walls on both sides; the drainage assembly is arranged below the expansion joint; the drainage assembly comprises a water receiving trough, two water retaining plates, a water receiving trough hanger and a drainage pipe assembly; the water retaining plates are fixed inwardly at 30-60 degrees along the two side walls of the expansion joint; the water receiving trough hanger is arranged along the bottom of the expansion joint; the water receiving trough is supported on the water receiving trough hanger and is arranged below the expansion joint in the same direction as the expansion joint; the drainage pipe assembly is connected to the water receiving trough.

[0007] Preferably, a concrete layer is provided between the thick retaining wall and the top surface of the upper cover plate, and drainage holes with the inner side higher and the outer side lower are provided in the concrete layer.

[0008] Preferably, the expansion joint is narrow at the top and wide at the bottom; a double-layer stainless steel coil with a fireproof cotton fire barrier is filled below the expansion joint; a polyethylene foam plastic rod is provided at the top; the polyethylene foam plastic rod is fixed in the expansion joint, and the top end protrudes from the expansion joint; a polyethylene foam plastic strip is filled in the expansion joint and between the polyethylene foam plastic rod and the double-layer stainless steel coil.

[0009] Preferably, a self-adhesive polymer modified asphalt waterproof roll is laid on the top of the elevated reinforced concrete layer.

[0010] Preferably, the drainage pipe assembly includes a water guide vertical pipe, a horizontal pipe and a drainage pipe; a horizontal pipe hanger is also provided under the water receiving trough hanger; the horizontal pipe is supported on the horizontal pipe hanger and is arranged in the same direction as the water receiving trough; the water guide vertical pipe is connected between the water receiving trough and the horizontal pipe; the drainage pipe is connected to the horizontal pipe.

[0011] Preferably, the upper cover plate includes, from bottom to top, a reinforced concrete layer, a waterproof layer, a fireproof layer and a protective layer; a gap of 100-300 mm is reserved between the protective layer and the outer side of the raised reinforced concrete layer, and the gap is filled with a self-adhesive polymer modified asphalt waterproof membrane.

[0012] Beneficial effects of the utility model:

[0013] The utility model effectively blocks rainwater by setting up a raised reinforced concrete layer and thick retaining walls, and can better meet the waterproofing needs of the upper cover roof. By setting up a drainage component, water leaking from the expansion joint can be diverted and discharged in a timely manner, avoiding water accumulation in the expansion joint and the impact of water accumulation on the floor. By reserving a gap between the protective layer and the outer side of the raised reinforced concrete layer and filling the gap with self-adhesive polymer modified asphalt waterproof membrane B, deformation space is provided for floor deformation and the force of floor deformation can be offset, which can prevent floor deformation and cracks. At the same time, it can effectively alleviate the impact of deformation of the ultra-large area reinforced concrete upper cover roof on the deformation joint structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] In the figure, 1- expansion joint, 2- thick retaining wall, 3- cover plate, 4- raised reinforced concrete layer, 5- water trough, 6- water retaining plate, 7- water trough hanger, 8- concrete layer, 9- drainage hole, 10- double-layer stainless steel membrane, 11- polyethylene foam plastic rod, 12- polyethylene foam plastic strip, 13- self-adhesive polymer modified asphalt waterproof membrane A, 14- water guide vertical pipe, 15- horizontal pipe, 16- drainage pipe, 17- horizontal pipe hanger, 18- reinforced concrete layer, 19- waterproof layer, 20- fireproof layer, 21- protective layer, 22- self-adhesive polymer modified asphalt waterproof membrane B, 23- nails, 24- sealing paste. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0017] In the description of the present invention, unless otherwise specified, the terms "inside", "outside", etc. indicating the orientation or state relationship are based on the orientation or state relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "provided with" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0019] like Figure 1As shown, the super large area reinforced concrete upper cover roof expansion joint structure comprises an upper cover roof, an expansion joint 1, thick masonry retaining walls 2, cover plates 3 and a drainage assembly. The upper cover roof is provided with a raised reinforced concrete layer 4 above the roof surface at the expansion joint 1. The raised reinforced concrete layer 4 can make the expansion joint 1 higher than the upper cover roof surface, prevent rainwater from entering the expansion joint 1 and prevent the expansion joint 1 from becoming a rainwater channel. A row of thick masonry retaining walls 2 is respectively stacked on both sides of the raised reinforced concrete layer 4, and cover plates 3 are covered on the two rows of thick masonry retaining walls 2. The two rows of thick masonry retaining walls 2 and the cover plates 3 form a shelter to prevent rainwater and the like from entering the expansion joint 1. The thick masonry retaining walls 2 are consolidated with the top surface of the upper cover roof through a concrete layer 8, and a drainage hole 9 with a high inner side and a low outer side is formed in the concrete layer 8. The roof floor generally has a relatively complete drainage system, and rainwater generally does not collect on the floor. The outer side outlet of the drainage hole 9 is higher than the floor, and rainwater cannot enter the thick masonry retaining walls 2 through the drainage hole 9. However, when there is water in the thick masonry retaining walls 2 due to seepage or temperature changes, the drainage hole 9 can drain the water.

[0020] The upper cover roof structure of the utility model is a conventional floor roof structure. The upper cover roof of the embodiment comprises, from bottom to top, a reinforced concrete layer 18, a waterproof layer 19, a fireproof layer 20 and a protective layer 21. The upper cover roof structure of the utility model can also be provided with a fireproof layer and other conventional roof layer structures. The utility model reserves a gap of 100-300 mm between the protective layer 21 and the outer side of the raised reinforced concrete layer 4, and fills the gap with a self-adhesive polymer modified bitumen waterproof roll B22. The polymer modified bitumen waterproof roll has elasticity, provides a deformation space for the floor deformation, can offset the force of the floor deformation, prevents the floor deformation and cracks, and effectively alleviates the influence of the deformation of the super large area reinforced concrete upper cover roof floor on the deformation joint structure.

[0021] The drainage assembly is arranged below the expansion joint 1 and is used for draining water seeping into the expansion joint 1 in time. The drainage assembly comprises a water collecting groove 5, two water retaining plates 6, a water collecting groove hanger 7, a horizontal pipe hanger 17 and a drainage pipe assembly. The drainage pipe assembly comprises a water guide vertical pipe 14, a horizontal pipe 15 and a drainage pipe 16. The water collecting groove 5 is arranged along the lower side of the expansion joint 1 and is used for collecting water seeping from the expansion joint 1. The horizontal pipe 15 is arranged below the water collecting groove 5 in the same direction as the water collecting groove 5. The water guide vertical pipe 14 is connected between the water collecting groove 5 and the horizontal pipe 15. One water guide vertical pipe 14 is arranged per span and is used for guiding water in the water collecting groove 5 to the horizontal pipe 15. The water in the horizontal pipe is drained to the ground drainage system of the building structure through the drainage pipe 16 connected to the horizontal pipe. The water collecting groove 5 is supported on the water collecting groove hanger 7. The horizontal pipe 15 is supported on the horizontal pipe hanger 17. The water collecting groove hanger 7 is arranged along the lower side of the expansion joint 1 and is fixed on the reinforced concrete layer 18 by anchor nails. The horizontal pipe hanger 17 is fixed below the water collecting groove hanger 7 by welding.

[0022] The expansion joint 1 is narrow on top and wide on bottom; the bottom of the expansion joint 1 is filled with double-layer stainless steel coiled material 10 clamping fireproof cotton fire barrier tape, the top end is provided with a polyethylene foam plastic stick 11, the polyethylene foam plastic stick 11 is clamped in the expansion joint 1 and the top end leaks out of the expansion joint 1, and the expansion joint 1, the polyethylene foam plastic stick 11 and the double-layer stainless steel coiled material 10 are filled with a polyethylene foam plastic strip 12. The structure can achieve good fireproof effect, and the fire barrier tape can achieve a fire resistance limit of 3h. A self-adhesive polymer modified bitumen waterproof coiled material A13 is laid on the top of the reinforced concrete layer 4.

[0023] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. An ultra-large area reinforced concrete roof expansion joint structure, characterized in that: It includes an upper cover plate, an expansion joint, a thick masonry retaining wall, a cover plate and a drainage assembly; the upper cover plate is provided with a raised reinforced concrete layer higher than the top plate surface at the expansion joint; the thick masonry retaining wall is arranged along both sides of the raised reinforced concrete layer; the cover plate covers the top of the two rows of thick masonry retaining walls; the drainage assembly is arranged below the expansion joint; the drainage assembly includes a water receiving trough, two water retaining plates, a water receiving trough hanger and a drainage pipe assembly; the water retaining plates are fixed inwardly at 30-60 degrees along the two side walls of the expansion joint; the water receiving trough hanger is arranged below the expansion joint; the water receiving trough is supported on the water receiving trough hanger and is arranged below the expansion joint in the same direction as the expansion joint; the drainage pipe assembly is connected to the water receiving trough.

2. The ultra-large area reinforced concrete roof expansion joint structure according to claim 1 is characterized in that: A concrete layer is provided between the thick retaining wall and the top surface of the upper cover top plate, and drainage holes with the inner side higher and the outer side lower are provided in the concrete layer.

3. The ultra-large area reinforced concrete roof expansion joint structure according to claim 1 or 2, characterized in that: The expansion joint is narrow at the top and wide at the bottom; a double-layer stainless steel coil with a fireproof cotton fire barrier is filled below the expansion joint; a polyethylene foam plastic rod is provided at the top; the polyethylene foam plastic rod is fixed in the expansion joint, and the top end protrudes from the expansion joint; a polyethylene foam plastic strip is filled in the expansion joint and between the polyethylene foam plastic rod and the double-layer stainless steel coil.

4. The ultra-large area reinforced concrete roof expansion joint structure according to claim 3 is characterized in that: A self-adhesive polymer modified asphalt waterproof roll is laid on the top of the elevated reinforced concrete layer.

5. The ultra-large area reinforced concrete roof expansion joint structure according to claim 3 is characterized in that: The drainage pipe assembly includes a water guide vertical pipe, a horizontal pipe and a drainage pipe; a horizontal pipe hanger is also provided below the water receiving trough hanger; the horizontal pipe is supported on the horizontal pipe hanger and is arranged in the same direction as the water receiving trough; the water guide vertical pipe is connected between the water receiving trough and the horizontal pipe; the drainage pipe is connected to the horizontal pipe.

6. The ultra-large area reinforced concrete roof expansion joint structure according to claim 3 is characterized in that: The upper cover plate includes a reinforced concrete layer, a waterproof layer, a fireproof layer and a protective layer from bottom to top; a 100-300mm gap is reserved between the protective layer and the outer side of the elevated reinforced concrete layer, and the gap is filled with a self-adhesive polymer modified asphalt waterproof membrane.

Images