Stage project basement outer partition wall construction structure

Abstract

The utility model discloses a staged project basement outer partition wall construction structure which comprises a basement bottom plate, a first-stage outer wall, a second-stage outer wall mechanism, a first-stage top plate and a second-stage top plate, the second-stage outer wall mechanism is provided with a plurality of vertical keels arranged on the basement bottom plate, and the tops of the vertical keels are connected with the second-stage top plate. A plurality of supporting keels are evenly distributed on the side, facing the first-stage outer wall, of the vertical keel, the supporting keels are connected with the first-stage outer wall, and a plurality of horizontally-arranged transverse keels are evenly distributed on the other face of the vertical keel from top to bottom and are parallel to the first-stage outer wall. A cement board with the top and the bottom connected with the second-stage top board and the basement bottom board is fixed to the sides, away from the vertical keels, of the transverse keels, and the cement board, the transverse keels and the vertical keels jointly form a second-stage outer wall mechanism. The construction cost of the basement outer wall constructed by stages is greatly reduced, the leakage risk caused by differential settlement is reduced through the treatment of top plate connection, and the structure can be widely applied to underground construction.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground engineering, in particular to a kind of construction structure of external partition wall of basement of stage construction. BACKGROUND

[0002] For the civil construction engineering of stage construction, each period basement is usually constructed separately, and there are two reinforced concrete structure external walls at the junction position, and only the passageway part is connected. The basement reinforced concrete structure usually requires high strength grade, has waterproof and impermeable requirements, and needs additional construction of external waterproof and protective layer. For large-scale group civil buildings, the basement area is large, and the external wall engineering quantity is also large. According to the reinforced concrete structure construction, the cost is high, and the construction range of the junction position is narrow, the working conditions are poor, and it is not easy to operate and construct, which brings more difficulties to control the construction quality of the external wall at the junction position.

[0003] For the connecting part of each period basement, the basement roof structure needs to be connected. Since each period basement is constructed in different time periods, there is uneven settlement, and the roof interface part will crack if not treated effectively, causing roof leakage at the interface part. The related problems seriously affect the operation and use of the basement, so the problem needs to be effectively solved. INVENTION CONTENTS

[0004] The utility model aims at overcoming the insufficient of the above background art, providing a kind of construction structure of external partition wall of basement of stage construction, which greatly reduces the engineering cost of basement external wall of civil construction engineering of stage construction, and the treatment method of roof interface part reduces the leakage risk caused by uneven settlement.

[0005] The utility model provides a kind of construction structure of external partition wall of basement of stage construction, including basement bottom plate and the one period external wall and two period external wall mechanism of being set on basement bottom plate, the one period top plate is equipped at the top of one period external wall, the two period top plate is equipped at the top of two period external wall mechanism, two period external wall mechanism has the multiple vertical keels of being set on basement bottom plate and parallel to one period external wall, the top of each vertical keel is connected with two period top plate, and the side of each vertical keel towards one period external wall is uniformly distributed with multiple support keels from top to bottom, the support keel is connected with one period external wall by passing through the distance between vertical keel and one period external wall horizontally, the other side of multiple vertical keels is uniformly distributed with multiple horizontal setting horizontal keels from top to bottom, multiple horizontal keels are parallel with one period external wall, and the side of multiple horizontal keels away from vertical keel is fixed with cement board, the top and bottom of which are connected with two period top plate and basement bottom plate respectively, and the cement board, multiple horizontal keels and multiple vertical keels jointly form two period external wall mechanism.

[0006] In the above technical solution, the second-phase exterior wall structure includes a ground joist connected to the basement floor slab and a top joist connected to the second-phase roof slab. The top of all vertical joists is connected to the top joist, and the bottom of all vertical joists is connected to the ground joist. The bottom and top of the cement board are connected to the ground joist and the top joist, respectively.

[0007] In the above technical solution, the basement floor slab is provided with a basement floor layer with a groove between it and the first phase exterior wall. The top of the basement floor layer near the first phase exterior wall is provided with an upturned edge, and the floor joists are fixed to the upturned edge.

[0008] In the above technical solution, a basement drainage ditch is provided on the side of the basement floor away from the upturned edge, a drainage pipe is pre-embedded in the basement floor, a slope-finding layer is provided on the bottom surface of the trench between the basement floor and the first phase exterior wall, the two ends of the drainage pipe are respectively connected to the slope-finding layer and the basement drainage ditch, and the lower side of the slope-finding layer is at the same height as the bottom of the drainage pipe inlet.

[0009] In the above technical solution, the first-phase roof slab is provided with a first-phase upward-turning structure on the side near the second-phase roof slab, and the second-phase roof slab is provided with a second-phase upward-turning structure on the side near the first-phase roof slab. The top of the first-phase upward-turning structure is connected to the top of the second-phase upward-turning structure.

[0010] In the above technical solution, the middle and bottom of the first-phase and second-phase upward-turning structures are provided with downward-facing opening grooves. The width of the opening grooves is less than the distance between the keel and the first-phase outer wall. Extruded polystyrene boards are provided in the opening grooves.

[0011] In the above technical solution, the bottom of the second-phase upturned structure protrudes downward and extends to be parallel to the first-phase exterior wall, and the bottom sides of the extruded polystyrene board are respectively connected to the second-phase upturned structure and the first-phase exterior wall.

[0012] In the above technical solution, the first-phase upward structure is provided with a water-stop steel plate that is flush with the top of the extruded board, and the water-stop steel plate is connected to the opening groove.

[0013] In the above technical solution, the top of the first-phase and second-phase upward-turning structures is provided with a double-layer waterproof membrane that runs along the outer side of the top of the first-phase and second-phase upward-turning structures and is attached thereto. The double-layer waterproof membrane extends to the top plate of the first phase and the top plate of the second phase on both sides, respectively.

[0014] In the above technical solution, a drip groove is provided at the bottom protrusion of the second-phase upward structure adjacent to the extruded board; the cement board is a waterproof and moisture-proof cement board; the top keel, bottom keel, vertical keel, horizontal keel and supporting keel are all light steel keels; the drainage pipe is a galvanized steel pipe.

[0015] The construction structure for the external partition wall of the basement in a phased project, as described in this utility model, has the following beneficial effects:

[0016] This invention addresses the issue of phased basement construction. Instead of using costly, complex, and time-consuming reinforced concrete walls for the later-built basement exterior walls at the junction, it employs lightweight steel keel waterproof and moisture-proof cement boards, a simple and quick construction method, significantly reducing project costs. Furthermore, at the junction of the phased roof slabs, the edge of the first-phase roof slab is integrally cast with an upward-turning structure and a pre-installed water-stop steel plate. The edge of the second-phase roof slab also features an integrally cast upward-turning structure, extending to close the junction with the upward-turning section of the first phase. This method significantly reduces the risk of water seepage caused by uneven settlement in phased basements. Additionally, a double-layer external waterproof membrane is applied at the junction to further enhance waterproofing. The waterproof membrane in this area is applied using a spot-adhesion method to prevent cracking due to uneven settlement. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the construction structure of the basement external partition wall in the phased project of this utility model. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.

[0019] See Figure 1 This utility model discloses a phased construction structure for the exterior partition wall of a basement, comprising a cement board 1 and light steel joists 2 and joists 3. In one or more embodiments, the cement board 1 is a 10mm thick waterproof and moisture-proof cement board. Light steel vertical joists 4 are installed between the vertical joists 2 and joists 3. Light steel horizontal joists 5 and light steel support joists 6 are installed at certain vertical intervals along the vertical joists 4. The cement board 1 is fixed to the vertical joists 4 with nails. The bottom of the cement board 1 and joists 3 is set on a concrete upturned edge 7, which is located on the basement floor layer 18. The basement floor layer 18 is located on the basement floor slab 19. A slope-forming layer 9 is constructed in the trench formed between the upturned edge 7 and the first-phase exterior wall 17, with a slope towards the pre-embedded drainage pipe 8, which is pre-embedded within the basement floor layer 18. Drip grooves 11 are installed at the edges of the side beams of the second-phase structure. Extruded polystyrene boards 12 are used to fill the gaps between the first-phase roof slab 20 and the second-phase roof slab 21. A first-phase upturned structure 15 is constructed with the edge of the first-phase roof slab 20 turned up 250mm. A water-stop steel plate 13 is reserved in the middle of the first-phase upturned structure 15. The water-stop steel plate 13 is made of steel plate with a width of 300mm and a thickness of 3mm. A second-phase upturned structure 16 is constructed with the edge of the second-phase roof slab 21 turned up 600mm. The second-phase upturned structure 16 is poured until it is flush with the edge of the first-phase upturned structure 15. After the first and second-phase upturned structures are poured and sealed, a double-layer waterproof membrane 14 is laid on the surface. The double-layer waterproof membrane 14 extends 250mm to both sides of the first-phase roof slab 20 and the second-phase roof slab 21.

[0020] Both the top keel 2 and the bottom keel 3 use 70*40*0.5mm light steel keel. The vertical keel 4 uses 70*40*0.8@400mm keel with a horizontal spacing of 400mm. The horizontal keel 5 and the supporting keel 6 use 40*10*0.4@1800 mm light steel keel. The vertical spacing of the horizontal keel 5 is 1800mm, the vertical spacing of the supporting keel 6 is 1800mm, and the horizontal spacing is 2000mm.

[0021] The upper flange 7 is made of C20 concrete, with a width and height of 200*200mm, and the surface is leveled with waterproof mortar. The slope layer 9 is a cement mortar slope layer (1.5%) that slopes towards the pre-embedded drainage pipe 8. The drainage pipe 8 is a galvanized steel pipe with a specification of DN75, and the water flows through the drainage pipe 8 to the basement drainage ditch 10.

[0022] A drip groove 11 is provided at the bottom edge of the second-phase upward-turning structure 16 to prevent water from flowing along the bottom of the structure at the junction of the first and second phases and causing erosion to the cement board 1 used as a partition wall. In one or more embodiments, the drip groove 11 at the bottom edge of the second-phase structure is made of plastic drip line. The gap between the first and second phase structures is fully filled with extruded polystyrene board 12. Extruded polystyrene board 12 is water-repellent, corrosion-resistant, and has a certain strength, and can also be used as a formwork for the second-phase structure.

[0023] The first-phase upturned structure 15 and the first-phase roof slab 20 were poured simultaneously, and the second-phase upturned structure 16 and the second-phase roof slab 21 were poured simultaneously.

[0024] The cement board 1 is fixed to the light steel joists 2, 3, 4, and 5 using pneumatic nails. The joists 2 and 3 are fixed to the concrete structure with cement nails, the 4 is fixed to the joists 2 and 3 with self-tapping screws, the 5 is fixed to the joists 4 with self-tapping screws, and the 3 is installed on the concrete flange 7. The joists 4 and the first-phase exterior wall 17 are reinforced with supporting joists 6 to enhance the stability of the cement board 1 partition wall.

[0025] The first-phase upturned structure 15 is poured simultaneously with the first-phase top slab 20 using concrete of the same strength, and is reinforced according to the reinforcement principle of the top slab; the second-phase upturned structure 16 is poured simultaneously with the second-phase top slab 21 using concrete of the same strength, and is reinforced according to the reinforcement principle of the top slab, and is poured until it is flush with the edge of the first-phase upturned structure 15.

[0026] After the first and second phases of the upturned structure are poured and sealed, a double-layer waterproof membrane 14 is laid on the surface. The double-layer waterproof membrane 14 adopts the same type of waterproof membrane as the original design.

[0027] In this construction method, firstly, instead of using high-cost, complex, and time-consuming reinforced concrete exterior walls, lightweight steel keel waterproof and moisture-proof cement boards are used for construction, which is simple and quick to install, significantly reducing project costs. Secondly, at the junction of the phased roof slabs, the edge of the first-phase roof slab is integrally cast with an upward-turning structure and a pre-installed water-stop steel plate. The edge of the second-phase roof slab is also integrally cast with an upward-turning structure and extends to close with the upward-turning part of the first phase. This method can significantly reduce the risk of water seepage caused by uneven settlement of the basement in phased construction. In addition, double-layer external waterproof membrane is used at the junction to further enhance the waterproofing capacity. The waterproof membrane in this area is applied using a spot-adhesion method to avoid the membrane tearing due to uneven settlement.

[0028] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A construction structure for a phased basement exterior partition wall, comprising a basement floor slab (19) and a first-phase exterior wall (17) and a second-phase exterior wall mechanism disposed on the basement floor slab (19), wherein the first-phase exterior wall (17) is topped with a first-phase roof slab (20), and the second-phase exterior wall mechanism is topped with a second-phase roof slab (21), characterized in that: The second-phase exterior wall structure has multiple vertical keels (4) installed on the basement floor slab (19) and parallel to the first-phase exterior wall (17). The top of each vertical keel (4) is connected to the second-phase roof slab (21). Multiple supporting keels (6) are evenly distributed from top to bottom on the side of each vertical keel (4) facing the first-phase exterior wall (17). The supporting keels (6) are horizontally connected to the first-phase exterior wall (17) by passing through the distance between the vertical keel (4) and the first-phase exterior wall (17). On the other side of the multiple vertical keel (4), multiple horizontal keels (5) are evenly distributed from top to bottom. The multiple horizontal keels (5) are parallel to the first phase exterior wall (17). On the side of the multiple horizontal keels (5) away from the vertical keel (4), there are cement boards (1) whose top and bottom are respectively connected to the second phase roof slab (21) and the basement floor slab (19). The cement boards (1), together with the multiple horizontal keels (5) and the multiple vertical keels (4), form the second phase exterior wall structure.

2. The construction structure of the basement exterior partition wall for phased construction projects according to claim 1, characterized in that: The second-phase exterior wall structure includes a ground joist (3) connected to the basement floor slab (19) and a top joist (2) connected to the second-phase roof slab (21). The top of all vertical joists (4) is connected to the top joist (2), and the bottom of all vertical joists (4) is connected to the ground joist (3). The bottom and top of the cement board (1) are connected to the ground joist (3) and the top joist (2) respectively.

3. The construction structure of the basement exterior partition wall for phased construction projects according to claim 2, characterized in that: The basement floor slab (19) has a basement floor layer (18) with a groove between it and the first phase exterior wall (17). The basement floor layer (18) has an upturned edge (7) on the side of the first phase exterior wall (17) and the floor joists (3) are fixed on the upturned edge (7).

4. The construction structure of the basement exterior partition wall for phased construction projects according to claim 3, characterized in that: The basement floor layer (18) is provided with a basement drainage ditch (10) on the side away from the upper edge (7). A drainage pipe (8) is pre-embedded in the basement floor layer (18). A slope-finding layer (9) is provided on the bottom surface of the trench between the basement floor layer (18) and the first phase exterior wall (17). The two ends of the drainage pipe (8) are respectively connected to the slope-finding layer (9) and the basement drainage ditch (10). The lower side of the slope-finding layer (9) is at the same height as the bottom of the inlet of the drainage pipe (8).

5. The construction structure of the basement exterior partition wall for phased construction as described in claim 4, characterized in that: The first-phase roof slab (20) is provided with a first-phase upturn structure (15) on the side near the second-phase roof slab (21), and the second-phase roof slab (21) is provided with a second-phase upturn structure (16) on the side near the first-phase roof slab (20). The first-phase upturn structure (15) is connected to the top of the second-phase upturn structure (16).

6. The construction structure of the basement exterior partition wall for phased construction projects according to claim 5, characterized in that: The first-phase upturned structure (15) and the second-phase upturned structure (16) are provided with downward-facing opening slots in the middle and bottom. The width of the opening slots is less than the distance between the keel (2) and the first-phase outer wall (17). Extruded polystyrene board (12) is provided in the opening slots.

7. The construction structure of the basement exterior partition wall for phased construction projects according to claim 6, characterized in that: The bottom of the second-phase upturned structure (16) protrudes downward and extends to be parallel to the first-phase outer wall (17). The bottom sides of the extruded board (12) are connected to the second-phase upturned structure (16) and the first-phase outer wall (17) respectively.

8. The construction structure of the basement exterior partition wall for phased construction projects according to claim 7, characterized in that: The first-stage upward-turning structure (15) is provided with a water-stop steel plate (13) that is flush with the top of the extruded board (12), and the water-stop steel plate (13) is connected to the opening groove.

9. The construction structure of the basement exterior partition wall for phased construction as described in claim 8, characterized in that: The top of the first-phase upturned structure (15) and the second-phase upturned structure (16) are provided with a double-layer waterproof membrane (14) that runs along the outer side of the top of the first-phase upturned structure (15) and the second-phase upturned structure (16) and is attached thereto. The double-layer waterproof membrane (14) extends to the first-phase top plate (20) and the second-phase top plate (21) on both sides respectively.

10. The construction structure of the basement exterior partition wall for phased construction projects according to claim 9, characterized in that: The bottom protrusion of the second-phase upward structure (16) is provided with a drip groove (11) adjacent to the extruded board (12). The cement board (1) is a waterproof and moisture-proof cement board; The keel (2), keel (3), vertical keel (4), horizontal keel (5) and supporting keel (6) are all light steel keels; The drainage pipe (8) is a galvanized steel pipe.

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