Roof waterproof structure for secondary development of reserved reinforcing steel bar parts at tops of frame columns and shear walls

Abstract

The utility model relates to a frame column and shear wall top secondary development reserved reinforcing steel bar part roof waterproof structure which comprises a first concrete structure formed on the top of a frame column and a shear wall in a pouring mode, a second concrete structure formed on the top of the shear wall in a pouring mode and wrapping corresponding parts of reserved reinforcing steel bars, and the top face of the first concrete structure is an inclined slope face. The second concrete structures are formed on the first concrete structures in a pouring mode and wrap the corresponding reserved steel bars, the second concrete structures are arranged on the edges of the frame columns and the two opposite sides of the shear wall, and a gap is reserved between every two opposite second concrete structures; the drainage pipe is buried in the second concrete structure located on the lower side of the inclined slope, a pipe opening in one side of the drainage pipe is communicated with the lower side of the inclined slope, and a pipe opening in the other side of the drainage pipe is located in the outer surface of the corresponding second concrete structure. The waterproof construction quality of the reserved reinforcing steel bar can be effectively improved, and the risk of water leakage of a main structure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproofing of construction projects, in particular to a roof waterproofing structure of a frame column and a reserved steel bar portion for secondary development of the top of a shear wall. Background Art

[0002] In large-scale infrastructure construction, in order to consider land use, when the top of the main structure is used for later development, during the construction of the main structure of the lower structure, it is necessary to reserve steel bars on the upper part of the top plate for subsequent development, so that the upper structure and the lower wall columns are effectively connected and embedded. However, it is necessary to effectively protect the upper reserved steel bars, and it should not affect the subsequent use of the reserved steel bars. In addition, in the waterproof construction of the upper roof project, the waterproof construction of the reserved steel bar position is relatively complicated, which has become a major difficulty in engineering construction. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a roof waterproof structure with reserved steel bars at the top of a frame column and a shear wall for secondary development, so as to solve the problem that the waterproof construction of the reserved steel bars in the existing upper roof engineering waterproof construction is relatively complicated.

[0004] The technical solution to achieve the above purpose is:

[0005] The utility model provides a roof waterproof structure for the secondary development of the reserved steel bar portion at the top of the frame column and the shear wall, comprising:

[0006] Casting a first concrete structure formed on the frame column and the top of the shear wall, wherein the first concrete structure wraps the corresponding part of the reserved steel bars, and the top surface of the first concrete structure is an inclined slope;

[0007] Casting a second concrete structure formed on the first concrete structure and wrapping the corresponding reserved steel bars, the second concrete structure being arranged at the edge of the frame column and at opposite sides of the shear wall, with a gap left between the two opposite second concrete structures;

[0008] A drainage pipe is buried in the second concrete structure located on the lower side of the inclined slope, wherein a pipe opening on one side of the drainage pipe is connected to the lower side of the inclined slope, and a pipe opening on the other side is located on the outer surface of the corresponding second concrete structure.

[0009] The utility model utilizes the poured first concrete structure and the second concrete structure to wrap the reserved steel bars, and the upper surface of the first concrete structure forms an inclined slope to facilitate water conduction, and can smoothly guide the rainwater entering between the second concrete structures into the drain pipe, and then drain it out through the drain pipe. Due to the arrangement of the first concrete structure and the second concrete structure, the waterproof construction quality at the reserved steel bars can be effectively improved, and the risk of water leakage in the main structure can be reduced. During secondary development, the first concrete structure and the second concrete structure can be dismantled, and the first concrete structure and the second concrete structure also play a role in protecting the steel bars.

[0010] A further improvement of the roof waterproof structure of the reserved steel bars for secondary development of the frame column and the shear wall top of the utility model is that a protective sleeve is provided on the reserved steel bars.

[0011] A further improvement of the roof waterproofing structure of the reserved steel bars for secondary development of the frame column and the top of the shear wall of the utility model is that the gap between the protective cover and the reserved steel bars is filled with a filler.

[0012] A further improvement of the roof waterproof structure of the reserved steel bars for secondary development of the frame columns and shear wall tops of the utility model is that the height of the first concrete structure is greater than the waterproof flashing height and less than the length of the reserved steel bars.

[0013] A further improvement of the roof waterproof structure of the reserved steel bar portion for secondary development of the frame column and the shear wall top of the utility model is that the drainage pipe is arranged in a horizontal shape.

[0014] A further improvement of the roof waterproofing structure of the reserved steel bar portion for secondary development of the frame column and the shear wall top of the utility model is that there are a plurality of drainage pipes which are arranged at intervals along the corresponding second concrete structure.

[0015] A further improvement of the roof waterproofing structure of the reserved steel bars at the top of the frame columns and shear walls of the utility model is that the thickness of the second concrete structure is greater than the diameter of the reserved steel bars and less than half the width of the first concrete structure.

[0016] A further improvement of the roof waterproofing structure of the reserved steel bar portion for secondary development of the frame columns and shear wall tops of the utility model is that both the first concrete structure and the second concrete structure are impermeable concrete structures.

[0017] A further improvement of the roof waterproof structure of the reserved steel bar portion for secondary development of the frame column and the shear wall top of the utility model is that a waterproof reinforcement layer is provided at the inner corner of the root of the first concrete structure.

[0018] The utility model further improves the roof waterproof structure of the reserved steel bar portion of the frame column and the shear wall top secondary development in that a hidden column is arranged in the shear wall;

[0019] The reserved steel bars on the concealed column are arranged around the concealed column;

[0020] The second concrete structure is arranged around the concealed column to wrap the corresponding reserved steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a cross-sectional view of the frame column in the roof waterproof structure of the utility model, where the steel bars are reserved for secondary development of the frame column and the top of the shear wall.

[0022] Figure 2 for Figure 1 AA section view in.

[0023] Figure 3 This is a cross-sectional view of the shear wall in the roof waterproof structure of the utility model, in which the steel bars are reserved for secondary development of the frame column and the top of the shear wall. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] See also Figure 1 The utility model provides a roof waterproofing structure for the reserved steel bars at the top of the frame column and the shear wall for secondary development, which is used to solve the problem of difficult waterproofing construction of the roof project at the reserved steel bars. The waterproofing structure of the utility model wraps the reserved steel bars by pouring a concrete structure, and an inclined slope is set at the hollow structure formed by the concrete structure for diversion. A drainage pipe is also set to drain the water in the hollow structure, which effectively improves the quality of the node waterproofing construction and reduces the risk of water leakage in the main structure. The roof waterproofing structure for the reserved steel bars at the top of the frame column and the shear wall for secondary development of the utility model is described below in conjunction with the accompanying drawings.

[0026] See also Figure 1 , showing the cross-sectional view of the frame column in the roof waterproof structure of the utility model frame column and the reserved steel bar part of the top of the shear wall. Figure 2 , showing Figure 1 The AA section view in Figure 1 and Figure 2 , the roof waterproofing structure of the reserved steel bars for secondary development of the frame columns and shear wall tops of the utility model is explained.

[0027] like Figure 1 and Figure 2As shown, the roof waterproofing structure of the secondary development of the reserved steel bars at the top of the frame column and the shear wall of the utility model includes a first concrete structure 21, a second concrete structure 22 and a drain pipe 24. The first concrete structure 21 is cast and formed on the frame column 11 and the top of the shear wall. The first concrete structure 21 wraps the corresponding part of the reserved steel bars, and the top surface of the first concrete structure 21 is an inclined slope 211; the second concrete structure 22 is cast and formed on the first concrete structure 21 and wraps the corresponding reserved steel bars. The second concrete structure 22 is arranged at the edge of the frame column 11 and the opposite sides of the shear wall, and a gap 23 is left between the two opposite second concrete structures 22; the drain pipe 24 is buried in the second concrete structure 22 located on the lower side of the inclined slope 211, and the pipe mouth on one side of the drain pipe 24 is connected to the lower side of the inclined slope 211, and the pipe mouth on the other side is located on the outer surface of the corresponding second concrete structure 22.

[0028] like Figure 1 and Figure 2 As shown, the frame column 11 is a square column. The main reinforcement 111 arranged in the frame column 11 is arranged around the frame column. The top of the main reinforcement 111 is partially exposed to form a reserved steel bar. The reserved steel bar is used to connect the secondary development structure. The top of the frame column 11 is connected to the frame beam 12, and a roof slab 13 is arranged above the frame beam 12.

[0029] Before pouring the first concrete structure 21 and the second concrete structure 22, a protective cover 25 is placed on the reserved steel bars to isolate the reserved steel bars from the poured concrete. When the reserved steel bars are used in subsequent secondary development, the first concrete structure and the second concrete structure can be removed.

[0030] Furthermore, the gap between the protective cover 25 and the reserved steel bar is filled with a filler. Preferably, the protective cover 25 is a PVC tube, the length of which is greater than the length of the reserved steel bar, and the filler is fine sand or sawdust to fill the gap between the protective cover and the reserved steel bar, and then the top of the protective cover 25 is sealed with a sealing tape.

[0031] In a specific implementation of the present invention, the height of the first concrete structure 21 is greater than the waterproof flashing height and less than the length of the reserved steel bars. For example, if the waterproof flashing height is required to be 500 mm, the height of the first concrete structure 21 can be selected to be 600 mm.

[0032] Furthermore, the drain pipe 24 is arranged horizontally.

[0033] Furthermore, there are a plurality of drainage pipes 24 , which are arranged at intervals along the corresponding second concrete structures 22 .

[0034] The thickness of the second concrete structure 22 is greater than the diameter of the reserved steel bar and less than half the width of the first concrete structure 21. The distance between the surface of the second concrete structure 22 and the protective cover 25 is the thickness of the concrete protective layer, which may be 40 mm.

[0035] Preferably, the first concrete structure 21 and the second concrete structure 22 are both impermeable concrete structures.

[0036] Furthermore, a waterproof reinforcement layer is provided at the inner corner of the root of the first concrete structure 21. The waterproof reinforcement layer is preferably a waterproof roll material laid at the root of the first concrete structure 21.

[0037] A waterproof layer is laid on the top of the roof slab 13 , and the waterproof layer is turned up at the surface of the first concrete structure 21 .

[0038] Taking the 1500mm*1500mm frame column as an example, the reserved reinforcement is the outer circle of main reinforcement. The reserved reinforcement is protected by a protective sleeve. After the protection is completed, the formwork is supported for concrete pouring. Because the concrete is a temporary structure, the surface quality requirements are not high, so the waste formwork can be used for support. When the spacing of the main reinforcement of the frame column is too large, the internal size of the formwork support can be only the diameter of the reinforcement plus the thickness of the protective layer on both sides, which can save concrete.

[0039] After the second concrete structure is cast, it is enclosed to form a hollow part. At this time, water easily accumulates in the hollow part of the column after rain and snow. Long-term water accumulation causes leakage of the top plate. Therefore, when the first concrete structure is cast, a slope is found on one side of the top surface (the slope can be determined according to the local precipitation over the years), for example, the slope is 2%, and a drainage pipe is reserved at the second concrete structure on the lowest side. The internal water can flow out from a height of 600mm. At this time, it is only necessary to consider protecting the waterproofing of the outer side of the reinforced concrete. Before the roof waterproofing construction, a waterproof reinforcement layer is made at the inner corner of the root of the reinforced concrete according to the waterproofing requirements, and the waterproof layer at this position also needs to be constructed according to the flashing method. After the waterproofing construction is completed, when the water accumulated inside the hollow column flows out from the drainage pipe, the water flows out from the upper part of the waterproof flashing, effectively solving the problem of waterproofing the reserved steel bar position.

[0040] Furthermore, if Figure 3 As shown, a hidden column is provided in the shear wall 14; reserved steel bars on the hidden column are arranged around the hidden column; and a second concrete structure is arranged around the hidden column to wrap the corresponding reserved steel bars. The method for the hidden column is the same as that for the frame column.

[0041] The two second concrete structures on the shear wall 14 also enclose a cavity. When performing secondary development, the first concrete structure is cut off from the root, and the first concrete structure and the second concrete structure can be lifted as a whole using a lifting and hoisting machinery.

[0042] When the spacing of the steel bars in the shear wall is small, the first concrete structure can be directly poured to wrap the reserved steel bars, and the top surface of the first concrete structure can be sloped to one side to facilitate drainage.

[0043] The waterproof structure of the utility model can effectively improve the quality of waterproof construction of nodes and reduce the risk of water leakage in the main structure. It can also effectively ensure that the reserved steel bars are not damaged during secondary development and ensure the quality of subsequent construction of concrete and steel bars. It can save manpower, material and financial costs.

[0044] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. A roof waterproof structure with reserved steel bars for secondary development of frame columns and shear wall tops, characterized in that: include: Casting a first concrete structure formed on the frame column and the top of the shear wall, wherein the first concrete structure wraps the corresponding part of the reserved steel bars, and the top surface of the first concrete structure is an inclined slope; Casting a second concrete structure formed on the first concrete structure and wrapping the corresponding reserved steel bars, the second concrete structure being arranged at the edge of the frame column and at opposite sides of the shear wall, with a gap left between the two opposite second concrete structures; A drainage pipe is buried in the second concrete structure located on the lower side of the inclined slope, wherein a pipe opening on one side of the drainage pipe is connected to the lower side of the inclined slope, and a pipe opening on the other side is located on the outer surface of the corresponding second concrete structure.

2. The roof waterproof structure of the frame column and the top of the shear wall for secondary development with reserved steel bars as claimed in claim 1, characterized in that: A protective sleeve is provided on the reserved steel bar.

3. The roof waterproof structure of the frame column and the top of the shear wall for secondary development with reserved steel bars as claimed in claim 2, characterized in that: The gap between the protective cover and the reserved steel bars is filled with a filler.

4. The roof waterproof structure for secondary development of the frame column and the top of the shear wall with reserved steel bars as claimed in claim 1, characterized in that: The height of the first concrete structure is greater than the waterproof flooding height and less than the length of the reserved steel bars.

5. The roof waterproof structure of the frame column and the top of the shear wall for secondary development with reserved steel bars as claimed in claim 1, characterized in that: The drain pipe is arranged horizontally.

6. The roof waterproof structure for secondary development of the frame column and the top of the shear wall with reserved steel bars as claimed in claim 1, characterized in that: There are a plurality of drainage pipes, which are arranged at intervals along the corresponding second concrete structure.

7. The roof waterproof structure for secondary development of reserved steel bars at the top of frame columns and shear walls as claimed in claim 1, characterized in that: The thickness of the second concrete structure is greater than the diameter of the reserved steel bars and less than half the width of the first concrete structure.

8. The roof waterproof structure for secondary development of the frame column and the top of the shear wall with reserved steel bars as claimed in claim 1, characterized in that: The first concrete structure and the second concrete structure are both impermeable concrete structures.

9. The roof waterproof structure of the frame column and the top of the shear wall for secondary development with reserved steel bars as claimed in claim 1, characterized in that: A waterproof reinforcement layer is provided at the inner corner of the root of the first concrete structure.

10. The roof waterproof structure of the frame column and the top of the shear wall for secondary development with reserved steel bars as claimed in claim 1, characterized in that: Concealed columns are provided in the shear wall; The reserved steel bars on the concealed column are arranged around the concealed column; The second concrete structure is arranged around the concealed column to wrap the corresponding reserved steel bars.

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