Construction method for synchronous construction of concrete frame structure and external wall panel

Abstract

The invention relates to a construction method for synchronous construction of a concrete frame structure and an external wall panel, which comprises the following steps of: starting to construct the frame structure from a bottom layer, and arranging construction covered edges on frame beams and frame columns; each layer of the frame structure is constructed, and a structural floor slab is poured on the layer of the frame structure; after construction of structural floors of the upper layer and the lower layer, externally-hung wallboards are correspondingly placed between the upper layer and the lower layer of the frame structure; threaded blind holes in the ends of the externally-hung wallboards are connected with embedded steel bars of the structural floor slab; a first partition plate is arranged on the inner side of the externally-hung wall plate. According to the construction method for synchronous construction of the concrete frame structure and the externally-hung wall plate, through the embedded steel bars and the threaded blind holes, rapid connection of the externally-hung wall plate and the structural floor slab can be achieved, the working efficiency is improved, synchronous construction with a main body structure can be achieved, the construction period is shortened, meanwhile, the use amount of construction formworks is reduced, and the construction cost is reduced. On-site construction and installation are convenient, connection joints are safe and reliable, and the quality of a building structure is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of prefabricated design, and in particular to a construction method for synchronously constructing a concrete frame structure and an external wall panel. Background Art

[0002] As the country increases the proportion of prefabricated buildings, the demand for prefabricated buildings is growing. In prefabricated public building projects such as industrial buildings and industrial parks that use prefabricated external wall panels, the anchor connection between the external wall panels and the structural components is prone to brittle damage. Once it occurs, serious consequences will occur. At the same time, the connecting parts have extremely high requirements for construction accuracy, and on-site positioning installation is difficult, which prolongs the construction period. Since the influence of external wall panels on the rigidity of concrete frame structures cannot be ignored, it is not advisable to embed the external wall panels directly into the main structure. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a construction method for synchronously constructing a concrete frame structure and an external wall panel, so as to solve the problems that the connection between the existing external wall panel and the structural member is unstable, the construction is difficult and the construction period is long.

[0004] The technical solution to achieve the above-mentioned purpose is: a construction method for synchronous construction of a concrete frame structure and external wall panels, comprising the following steps: constructing the frame structure from the bottom layer, and setting structural edging on the frame beams and frame columns; pouring a structural floor slab on the frame structure of each layer after constructing each layer of the frame structure; after the structural floor slabs of the upper and lower layers are completed, placing the external wall panels between the upper and lower layers of the frame structure; connecting the threaded blind holes at the ends of the external wall panels to the embedded steel bars of the structural floor slabs; and setting a first partition on the inner side of the external wall panels.

[0005] In the construction method of the concrete frame structure and the external wall panels synchronously constructed by the present invention, the external wall panels and the structural floor slabs can be quickly connected through the embedded steel bars and the threaded blind holes, thereby improving the work efficiency, realizing synchronous construction with the main structure, saving the construction period, and at the same time saving the use of construction formwork, making on-site construction and installation convenient, and connecting nodes safe and reliable, thereby ensuring the quality of the building structure.

[0006] A further improvement of the construction method of the synchronous construction of a concrete frame structure and an external wall panel of the present invention is that, each time a layer of the frame structure is constructed, pouring a structural floor slab on the frame structure at that layer includes: adding a structural cantilever plate on the periphery of the starting layer of the frame structure.

[0007] A further improvement of the construction method of the present invention for synchronous construction of a concrete frame structure and external wall panels is that after the structural floor slabs of the upper and lower layers are completed, the external wall panels are placed between the upper and lower layers of the frame structure, including: setting structural columns between the frame beams of the upper and lower layers.

[0008] A further improvement of the construction method of the synchronous construction of a concrete frame structure and external wall panels of the present invention is that after the structural floor slabs of the upper and lower layers are completed, the external wall panels are placed between the upper and lower layers of the frame structure and further includes: connecting the external wall panels to the structural columns by connecting bolts.

[0009] A further improvement of the construction method of the present invention for synchronous construction of a concrete frame structure and external wall panels is that after the structural floor slabs of the upper and lower layers are completed, the external wall panels are placed between the upper and lower layers of the frame structure and further includes: setting a second partition plate on the inner side of the structural column.

[0010] A further improvement of the construction method of the synchronous construction of a concrete frame structure and external wall panels of the present invention is that after the structural floor slabs of the upper and lower layers are completed, the external wall panels are placed between the upper and lower layers of the frame structure, which also includes: gaskets are set at the connection between the upper and lower ends of the external wall panels.

[0011] A further improvement of the construction method of the synchronous construction of a concrete frame structure and external wall panels of the present invention is that after the structural floor slabs of the upper and lower layers are completed, the external wall panels are placed between the upper and lower layers of the frame structure and also includes: the outer wall of the external wall panel is set flush with the outer side of the structural edging of the frame beam and the outer side of the structural edging of the frame column.

[0012] A further improvement of the construction method of the synchronous construction of a concrete frame structure and external wall panels of the present invention is that after the structural floor slabs of the upper and lower layers are completed, the external wall panels are placed between the upper and lower layers of the frame structure, which also includes: setting close joints between adjacent and connected external wall panels.

[0013] A further improvement of the construction method of the synchronous construction of a concrete frame structure and external wall panels of the present invention is that setting a close joint between adjacent and connected external wall panels includes: injecting sealant into the cavity at the close joint and applying a protective layer on the outside of the close joint.

[0014] A further improvement of the construction method for synchronously constructing a concrete frame structure and an external wall panel of the present invention is that before arranging the first partition on the inner side of the external wall panel, the method includes: applying a waterproof layer on the inner and outer sides of the connection between the external wall panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a flow chart of a construction method for synchronously constructing a concrete frame structure and an external wall panel.

[0016] Figure 2 It is a connection schematic diagram of the external wall panel of the present invention.

[0017] Figure 3 It is a schematic diagram of the flow of step S120 of the present invention.

[0018] Figure 4 It is a schematic diagram of the connection between the external wall panel and the structural cantilever panel of the present invention.

[0019] Figure 5 It is a flowchart diagram of step S130 of the present invention.

[0020] Figure 6 It is a schematic diagram of the connection between the external wall panel and the structural column of the present invention.

[0021] Figure 7 FIG. 4 is another flowchart diagram of step S130 of the present invention.

[0022] Figure 8 FIG. 4 is another flowchart diagram of step S130 of the present invention.

[0023] Fig. 9 FIG. 4 is another flowchart diagram of step S130 of the present invention.

[0024] Fig.10 FIG. 4 is another flowchart diagram of step S130 of the present invention.

[0025] Fig.11 FIG. 4 is another flowchart diagram of step S130 of the present invention.

[0026] Fig.12 It is a schematic structural diagram of the close-jointed seam of the present invention.

[0027] Fig.13 It is a flowchart diagram of step S134 of the present invention.

[0028] Fig.14 It is a flowchart diagram of step S140 of the present invention.

[0029] In the figure: 10, frame structure; 11, frame beam; 12, frame column; 13, external wall panel; 131, threaded blind hole; 14, first partition; 15, embedded steel bar; 16, structural cantilever plate; 17, connecting bolts; 18, gasket; 19, close joint; 191, cavity; 20, structural column; 201, sealing layer; 21, protective layer; 22, waterproof layer. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] See also Figure 1 and Figure 2 , Figure 1 A schematic diagram showing a process flow of a construction method for synchronously constructing a concrete frame structure and an external wall panel according to the present invention is shown. Figure 2 The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, comprising the following steps:

[0032] Execute step S110: construct the frame structure 10 from the bottom layer, and set structural edges on the frame beams 11 and the frame columns 12.

[0033] Among them, the height of the structural edging set on the frame column 12 is consistent with the height of the frame beam 11. It is necessary to embed embedded steel bars 15 on the frame beam 11 and frame column 12 which are preset to be connected with the external wall panel 13 during pouring to facilitate the subsequent connection with the external wall panel 13. Then, execute step S110.

[0034] Execute step S120: each time a layer of the frame structure 10 is constructed, a structural floor slab is cast on the frame structure 10 of that layer.

[0035] Among them, the cast structural floor is connected to the frame beam 11 and the frame column 12. If the structural floor is cast flush with the frame beam 11, there is no connection between the structural floor and the external wall panel 13. If the structural floor is cast at the upper end of the frame beam 11, it is necessary to set embedded steel bars 15 to pass through the structural floor. Then, execute step S130.

[0036] Execute step S130: After the structural floor slabs of the upper and lower layers are completed, the external wall panels 13 are placed between the upper and lower layers of the frame structure 10.

[0037] Among them, the external wall panels 13 are arranged around the outer edge of the frame structure 10. The external wall panels 13 on the same layer are preset at the same height. The distance between each upper and lower structural floor is set according to actual needs. No specific restrictions are made here. Then, execute step S140.

[0038] Execute step S140: connect the threaded blind hole 131 at the end of the external wall panel 13 with the embedded steel bar 15 of the structural floor.

[0039] Among them, the upper and lower ends and the side edges of the external wall panel 13 are respectively connected to the frame beam 11 and the frame column 12, and the embedded steel bars 15 are pre-embedded in the frame beam 11 and the frame column 12. In this embodiment, the position of the threaded blind hole 131 set at the lower end of the external wall panel 13 corresponds to the position of the embedded steel bar 15, and the threaded blind hole 131 matches the size of the embedded steel bar 15, so the connection is convenient, fast, and relatively stable; in other embodiments, the threaded blind hole 131 can be set at both the upper and lower ends to strengthen the connection between the upper and lower ends of the external wall panel 13. There is no need to set fireproof rock wool on the outside of the external wall panel 13, and then, step S150 is executed.

[0040] Execute step S150: set a first partition plate 14 on the inner side of the external wall panel 13.

[0041] The first partition 14 is a flexible material, which has the functions of heat preservation and sound insulation, and has many patterns and can be used as a decorative surface. The flexible material can be a foam board or a composite board, and there is no restriction on this. The first partition 14 can not only be attached to the inner side of the external wall panel 13, but also be used as a partition inside the building structure to divide the space inside the building structure and achieve the weak connection requirement with the building structure.

[0042] See also Figure 3 and Figure 4 , Figure 3 The schematic diagram of the process of step S120 of the present invention is shown. Figure 4 The schematic diagram of the connection between the external wall panel 13 and the structural cantilever plate 16 of the present invention is shown. The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, and step S120 includes:

[0043] Execute step S121 : add a structural cantilever plate 16 on the outer periphery of the initial layer of the frame structure 10 .

[0044] Among them, since the length of the frame beam 11 of the starting layer is smaller than that of the frame beam 11 of the upper layer, a structural cantilever plate 16 needs to be set to fill the position and connect with the external wall panel 13. The width of the structural cantilever plate 16 corresponds to the thickness and gap thickness of the external wall panel 13, and no specific restrictions are made here.

[0045] See also Figure 5 and Figure 6 , Figure 5 The schematic diagram of the process of step S130 of the present invention is shown. Figure 6 The schematic diagram of the connection between the external wall panel 13 and the structural column 20 of the present invention is shown. The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, and step S130 includes:

[0046] Execute step S131: set a structural column 20 between adjacent external wall panels 13.

[0047] The structural columns 20 are vertically spaced between the upper and lower frame beams 11 . The number and position of the structural columns 20 depend on the actual setting of the external wall panels 13 of the construction, and are not specifically limited here.

[0048] See also Figure 7 , shows another flow chart of step S130 of the present invention. The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, step S130 also includes:

[0049] Execute step S1311: connect the external wall panel 13 and the structural column 20 via the connecting bolts 17.

[0050] In order to strengthen the connection of the external wallboard 13, the external wallboard 13 is connected laterally through the structural column 20 to bear the force dispersed from the external wallboard 13. A sealing layer 201 is applied on the outside of the connection between the structural column 20 and the external wallboard 13 to protect the connection node.

[0051] See also Figure 8 , shows another flow chart of step S130 of the present invention. The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, step S130 also includes:

[0052] Execute step S1312: set a second partition plate inside the structural column 20.

[0053] The second partition is also made of flexible material and is attached to the side wall of the structural column 20 to provide sound insulation, heat preservation and decoration.

[0054] See also Fig. 9 , shows another flow chart of step S130 of the present invention. The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, step S130 also includes:

[0055] Execute step S132: set a gasket 18 at the connection between the upper and lower ends of the external wall panel 13.

[0056] The function of the gasket 18 is to prevent relative movement of the connection of the external wall panel 13. In order to protect the stability of the connection, the width of the gasket 18 can be set to be less than or equal to the thickness of the external wall panel 13.

[0057] See also Fig.10 , shows another flow chart of step S130 of the present invention. The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, step S130 also includes:

[0058] Execute step S133: set the outer wall of the external wall panel 13 flush with the outer side of the structural edge of the frame beam 11 and the outer side of the structural edge of the frame column 12.

[0059] The external wall panels 13 are arranged along the edges of the frame beams 11 and the frame columns 12, and the outer side walls are flush, which is beneficial for processing the connection seams at the connection points.

[0060] See also Fig.11 and Fig.12 , Fig.11 Another schematic diagram of the process of step S130 of the present invention is shown. Fig.12 The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, wherein step S130 further includes:

[0061] Execute step S134: set close joints 19 between adjacent and connected external wall panels 13.

[0062] The block-shaped external wall panels 13 are hoisted and spliced ​​to form the surface wall of the building structure, and the close joints 19 strengthen the connection between adjacent external wall panels 13 .

[0063] See also Fig.13 , showing a flow chart of step S134 of the present invention. The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, step S134 comprises:

[0064] Execute step S1341 : inject sealant into the cavity 191 at the close-joined seam 19 , and apply a protective layer 21 on the outer side of the close-joined seam 19 .

[0065] Among them, the gaps must be cleaned before operation, and the sealant cannot be higher than the board surface. If the cavity 191 is large, it is necessary to fill the cavity 191 with a PE rod first, and then inject the sealant. The protective layer 21 can be a waterproof paint and a fire-retardant paint applied to the close joints.

[0066] See also Fig.14 , showing a flow chart of step S140 of the present invention. The present invention provides a construction method for synchronously constructing a concrete frame structure 10 and an external wall panel 13, which includes before step S140:

[0067] Execute step S1401: apply a waterproof layer 22 on the inner and outer sides of the connection between the external wall panels 13.

[0068] Among them, there will be gaps at the connection of the external wall panels 13, which are prone to leakage in rainy weather and need to be painted with waterproof paint, which further improves the quality of the building structure.

[0069] The present invention is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various changes to the present invention according to the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be the scope defined by the attached claims.

Claims

1. A construction method for synchronous construction of a concrete frame structure and an external wall panel, characterized in that: The steps include: The frame structure is constructed from the bottom layer, and structural edging is set on the frame beams and frame columns; Each time a layer of the frame structure is constructed, a structural floor slab is poured on the frame structure of that layer; After the structural floor slabs of the upper and lower layers are completed, external wall panels are placed between the upper and lower layers of the frame structure; Connecting the threaded blind hole at the end of the external wall panel to the embedded steel bars of the frame structure; A first partition is arranged on the inner side of the external wall panel.

2. A construction method for synchronously constructing a concrete frame structure and an external wall panel according to claim 1, characterized in that: The step of constructing each layer of the frame structure and casting the structural floor slab on the frame structure at that layer comprises: A structural cantilever plate is added to the outer periphery of the initial layer of the frame structure.

3. The method for synchronously constructing a concrete frame structure and an external wall panel according to claim 1, characterized in that: After the structural floor slabs of the upper and lower layers are completed, placing the external wall panels between the upper and lower layers of the frame structure includes: Structural columns are arranged between the frame beams of the upper and lower layers.

4. The method for synchronously constructing a concrete frame structure and an external wall panel according to claim 3, characterized in that: After the structural floor slabs of the upper and lower layers are completed, placing the external wall panels between the upper and lower layers of the frame structure also includes: The external wall panel and the structural column are connected by connecting bolts.

5. The method for synchronously constructing a concrete frame structure and an external wall panel according to claim 3, characterized in that: After the structural floor slabs of the upper and lower layers are completed, placing the external wall panels between the upper and lower layers of the frame structure also includes: A second partition is arranged inside the structural column.

6. The method for synchronously constructing a concrete frame structure and an external wall panel according to claim 1, characterized in that: After the structural floor slabs of the upper and lower layers are completed, placing the external wall panels between the upper and lower layers of the frame structure also includes: A gasket is arranged at the connection between the upper and lower ends of the external wall panel.

7. The method for synchronously constructing a concrete frame structure and an external wall panel according to claim 1, characterized in that: After the structural floor slabs of the upper and lower layers are completed, placing the external wall panels between the upper and lower layers of the frame structure also includes: The outer wall of the external wall panel is arranged flush with the outer side of the structural edge of the frame beam and the outer side of the structural edge of the frame column.

8. The method for synchronously constructing a concrete frame structure and an external wall panel according to claim 1, characterized in that: After the structural floor slabs of the upper and lower layers are completed, placing the external wall panels between the upper and lower layers of the frame structure also includes: A close joint is arranged between the adjacent and connected external wall panels.

9. The method for synchronously constructing a concrete frame structure and an external wall panel according to claim 8, characterized in that: The step of setting a close joint between adjacent and connected external wall panels comprises: A sealant is injected into the cavity at the close joint, and a protective layer is applied on the outer side of the close joint.

10. The method for synchronously constructing a concrete frame structure and an external wall panel according to claim 1, characterized in that: The method of arranging the first partition plate on the inner side of the external wall plate comprises: A waterproof layer is applied on the inner and outer sides of the connection of the external wall panels.

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