An integrated construction method for assembling a fireproof isolation belt of a building outer wall

Abstract

The application discloses an integrated construction method of an assembled building outer wall fireproof isolation belt, which comprises the following steps: limiting the root of a prefabricated fireproof and heat-insulating outer wall by using an outer side form and an inner side form during construction, pouring concrete in the internal cavity of the outer wall, and filling and plugging the bottom of the outer wall by the concrete to form a basic structure; installing a fireproof partition piece on the outer side of a floor panel; realizing the isolation and plugging of upper and lower outer wall structures by the fireproof partition piece, forming a fireproof partition, and avoiding the occurrence of fire problems at the end of the outer wall in the case of fire; and finally, injecting heat-insulating mortar into the inner side of an outer support plate, embedding the partition body in the end of the upper and lower outer walls, ensuring the structural strength and stability of the fireproof partition piece, moving the partition body to the side of the floor panel by a certain distance during the mortar injection, embedding the sealing groove and the partition body, and preventing the occurrence of water seepage and fire problems.

Description

TECHNICAL FIELD

[0001] The present application relates to high-rise building outer wall fireproof technology, in particular to a kind of assembly building outer wall fireproof isolation zone integrated construction method, by setting fireproof isolation zone directly on the outside of floor panel during construction to ensure the fireproof isolation of upper and lower outer walls. BACKGROUND

[0002] When building, sound insulation board, insulation board and fireproof board are arranged in a certain order to form an outer wall structure, achieving sound insulation and fireproofing of the house, and the fireproof outer wall is a non-combustible wall with a fire resistance limit not less than 3 hours. Most high-rise buildings currently use prefabricated structures, including fireproof and heat-insulating outer wall structures. During prefabricated building construction, the fireproof and heat-insulating outer wall structure is directly assembled and installed on the floor panel. However, the outside of the installation position requires fireproof and heat-insulating treatment, and there is a lack of effective structure for fireproofing and heat-insulating performance at this special node position. SUMMARY

[0003] The present application aims to provide a prefabricated building outer wall fireproof isolation zone integrated construction method to solve the problems raised in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0005] A prefabricated building outer wall fireproof isolation zone integrated construction method, comprising:

[0006] Step 1, lofting

[0007] Draw the outer wall inside edge line on the floor panel according to the design drawing requirements, and install the outside side form and the inside side form on the side of the outer wall construction edge line. The outside side form is fixedly installed on the side of the floor panel, and the inside side form is installed on the floor panel. Adjust the perpendicularity of the outside side form and the inside side form;

[0008] Install the cushion block at the bottom of the area surrounded by the outside side form and the inside side form, and bind the steel cage inside the outside side form and the inside side form. The bottom of the steel cage is fixedly bound with the exposed steel bars on the floor panel;

[0009] Step 2, hoisting of prefabricated fireproof and heat-insulating outer wall single board

[0010] The prefabricated fireproof and heat-insulating outer wall has a vertical cavity inside. The prefabricated fireproof and heat-insulating outer wall single board is hoisted to the top of the steel cage, and the vertical lower part is inside the cavity of the steel cage. The cavity is filled with concrete;

[0011] During the pouring process, the concrete will overflow from the bottom of the cavity to the outside side mold, the inside side mold, fill the space between the outside side mold and the inside side mold, and after the concrete reaches the design strength, the outside side mold and the inside side mold are removed.

[0012] Step 3, joint fireproof treatment

[0013] A fireproof partition is installed on the outer side of the floor panel, the overall structure of the fireproof partition is U-shaped, the top and bottom of the fireproof partition each have a partition body, and the end away from the floor panel is close to the middle, an outer support plate is arranged in the internal space of the fireproof partition, the outer support plate is provided with a grouting hole, and the two ends of the outer support plate act on the two partition bodies outside;

[0014] Fireproof and heat-insulating adhesive is applied on the bottom of the upper prefabricated fireproof and heat-insulating outer wall single plate and the top of the lower prefabricated fireproof and heat-insulating outer wall single plate respectively.

[0015] Step 4, partition grouting

[0016] The grouting hole is connected with a grouting machine, and heat-insulating mortar is injected into the internal space of the fireproof partition, with the injection of the heat-insulating mortar, the outer support plate is moved outward, and the two partition bodies are extruded, so that the two partition bodies are expanded, and the partition bodies are respectively attached to the bottom of the upper prefabricated fireproof and heat-insulating outer wall and the top of the lower prefabricated fireproof and heat-insulating outer wall, forming a fireproof partition of the protective and heat-insulating outer wall between floors.

[0017] In the scheme, one-way ratchet structures are arranged on the opposite sides of the two partition bodies and the two ends of the outer support plate, for the outward one-way movement of the outer support plate.

[0018] In the scheme, a blocking body is arranged on the side opposite to the two partition bodies, and the blocking body is embedded in the fireproof layer of the corresponding prefabricated fireproof and heat-insulating outer wall.

[0019] In the scheme, a fireproof layer is arranged in the prefabricated fireproof and heat-insulating outer wall, and a sealing groove is arranged on the top and bottom of the fireproof layer and gradually away from the floor panel in the depth direction.

[0020] In the scheme, a positioning rod and a T-shaped hole are arranged on the side of the fireproof partition facing the floor panel, the side of the T-shaped hole facing the floor panel is small, a connecting rod is arranged in the T-shaped hole, a pre-buried part is embedded on the floor panel, and a positioning hole and an internal thread hole are arranged on the pre-buried part, the positioning rod and the positioning hole are matched, and the connecting rod and the internal thread hole are matched.

[0021] The pre-buried part is provided with a connecting rope, and the connecting rope is connected with the inner wall of the outer support plate in the fireproof partition.

[0022] In the scheme, a sealing ring is arranged between the rod body and the small opening of the connecting rod, and a sealing rubber ring is arranged between the connecting rope and the fireproof partition.

[0023] In the scheme, a hooking plate and a connecting plate are arranged on the side of the embedded part opposite to the fireproof partition, the hooking plate is installed on the reinforcement cage, and the connecting plate is arranged opposite to the floor support plate and is provided with a connecting hole on the surface.

[0024] The floor panel is internally provided with a floor support plate, the floor support plate is provided with exposed steel bars at the end, and the exposed steel bars are provided with external threads at the end.

[0025] The connecting hole is used for transfixing the exposed steel bars at the end of the floor support plate and transversely fixing the steel bars by bolts, and the hooking plate is fixed on the reinforcement cage.

[0026] In the scheme, the top and the bottom of the prefabricated fireproof and heat-insulating outer wall are provided with connecting heads, the connecting head at the bottom is located between the inner side form and the outer side form, and the connecting head at the top is embedded in the floor panel of the upper layer.

[0027] In the scheme, the middle part of the inner side form is provided with a downward inclined extrusion groove, and an extrusion block is arranged in the extrusion groove, and the extrusion block is used for extruding the concrete in the extrusion groove to the space between the inner side form and the outer side form.

[0028] The beneficial effects of the present application relative to the prior art are that in the present application, during construction, the root of the prefabricated fireproof and heat-insulating outer wall is limited by the outer side form and the inner side form, the internal cavity of the outer wall is used for pouring concrete, the concrete is self-adaptable to fill and seal the bottom to form a foundation structure. A fireproof partition is installed on the outer side of the floor panel, the fireproof partition is used to isolate and seal the upper and lower outer wall structures to form a fireproof partition, and the fireproof partition can avoid the problem of fire at the end of the outer wall in the case of fire. Finally, the heat-insulating mortar is injected into the inner side of the outer support plate, and then the partition body is embedded in the end of the upper and lower outer walls, and the structural strength and stability of the fireproof partition can be ensured, and at the same time, the partition body moves a certain distance to the side of the floor panel during grouting, and then the embedded structure of the sealing groove and the partition body is realized, so that the problems of water seepage and fire are prevented. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the construction of the present application.

[0030] Figure 2 It is a schematic diagram of the installation structure of the fireproof partition of the present application.

[0031] Figure 3 It is a local enlarged schematic diagram of the fireproof partition of the present application.

[0032] In the figure: 10, floor panel; 101, floor support plate; 20, outer side mold; 30, inner side mold; 31, extruded groove; 32, extruded block; 40, cushion block; 50, reinforcement cage; 60, prefabricated fireproof thermal insulation outer wall; 61, cavity; 62, fireproof layer; 63, sealing groove; 64, connecting head; 70, fireproof partition; 701, positioning rod; 702, T-shaped hole; 703, connecting rod; 71, partition body; 72, outer support plate; 73, grouting hole; 74, blocking body; 80, embedded part; 801, positioning hole; 802, internal threaded hole; 803, connecting rope; 804, hooking plate; 805, connecting plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0034] Embodiment 1

[0035] An integrated construction method for assembling a fireproof isolation belt of a building outer wall, characterized in that it comprises:

[0036] Step 1, lofting

[0037] Draw the inner side line of the outer wall on the floor panel 10 according to the design drawing requirements, and install the outer side mold 20 and the inner side mold 30 on the side of the outer wall construction line. The outer side mold 20 is fixedly installed on the side of the floor panel 10, and the inner side mold 30 is installed on the floor panel 10. The perpendicularity of the outer side mold 20 and the inner side mold 30 is adjusted.

[0038] Install the cushion block 40 at the bottom of the area surrounded by the outer side mold 20 and the inner side mold 30, and bind the reinforcement cage 50 in the outer side mold 20 and the inner side mold 30. The bottom of the reinforcement cage 50 is bound and fixed with the exposed reinforcement on the floor panel 10.

[0039] Step 2, hoisting of prefabricated fireproof thermal insulation outer wall 60 single board

[0040] The prefabricated fireproof thermal insulation outer wall 60 is internally provided with a vertical cavity 61. The prefabricated fireproof thermal insulation outer wall 60 single board is hoisted to the upper side of the reinforcement cage 50, and the vertical lower side is inside the cavity 61 of the reinforcement cage 50. The cavity 61 is filled with concrete.

[0041] During the pouring process, the concrete will overflow from the bottom of the cavity 61 and flow to the inside of the outer side mold 20 and the inner side mold 30, filling the space between the outer side mold 20 and the inner side mold 30. After the concrete reaches the design strength, the outer side mold 20 and the inner side mold 30 are removed.

[0042] Step 3, joint fireproof treatment

[0043] A fireproof partition 70 is installed on the outer side of the floor panel 10, the overall structure of the fireproof partition 70 is U-shaped, the top and bottom of the fireproof partition 70 are provided with a partition body 71, and the end away from the floor panel 10 is close to the middle, an outer support plate 72 is arranged in the internal space of the fireproof partition 70, the outer support plate 72 is provided with a grouting hole 73, and the two ends of the outer support plate 72 are respectively connected to the two partition bodies 71.

[0044] The bottom of the upper prefabricated fireproof and heat-insulating outer wall 60 single plate and the top of the lower prefabricated fireproof and heat-insulating outer wall 60 single plate are respectively coated with a fireproof and heat-insulating adhesive.

[0045] Step 4, grouting

[0046] The grouting hole 73 is connected to a grouting machine, and the heat-insulating mortar is injected into the fireproof partition 70, and the outer support plate 72 is moved outward as the heat-insulating mortar is injected, the outer support plate 72 is provided with a one-way diaphragm, and the two partition bodies 71 are extruded, the two partition bodies 71 are extended, so that the partition bodies 71 are respectively attached to the bottom of the upper prefabricated fireproof and heat-insulating outer wall 60 and the top of the lower prefabricated fireproof and heat-insulating outer wall 60, and a fireproof partition of a prefabricated floor interval is formed.

[0047] The opposite side of the two partition bodies 71 and the two ends of the outer support plate 72 are provided with a one-way ratchet structure, which is used for the one-way movement of the outer support plate 72, and the two partition bodies 71 are deflected (i.e. turned outward) to the top or bottom, so that the upper prefabricated fireproof and heat-insulating outer wall 60 and the lower prefabricated fireproof and heat-insulating outer wall 60 are matched at the end, and the fireproof partition treatment at the node is completed.

[0048] Embodiment 2:

[0049] On the basis of the above embodiment, the side of the two partition bodies 71 opposite to each other is provided with a barrier body 74, the inside of the prefabricated fireproof and heat-insulating outer wall 60 is provided with a fireproof layer 62, and the barrier body 74 is embedded in the fireproof layer 62 of the corresponding prefabricated fireproof and heat-insulating outer wall 60.

[0050] The top and bottom of the fireproof layer 62 are provided with a sealing groove 63, and the sealing groove 63 is gradually away from the floor panel 10 along the depth direction.

[0051] The side of the fireproof partition 70 facing the floor panel 10 is provided with a positioning rod 701 and a T-shaped hole 702, the side of the T-shaped hole 702 facing the floor panel 10 is small, a connecting rod 703 is arranged in the T-shaped hole 702, a pre-buried part 80 is embedded on the floor panel 10, the pre-buried part 80 is provided with a positioning hole 801 and an internally threaded hole 802, the positioning rod 701 and the positioning hole 801 are matched, one end of the connecting rod 703 is externally threaded and the other end is provided with a smooth rod surface, the connecting rod 703 and the internally threaded hole 802 are matched, after installation, the externally threaded hole and the internally threaded hole 802 are completely matched, and it is necessary to ensure that the fireproof partition 70 has a certain amount of axial displacement relative to the floor panel 10, and the displacement is used for embedding the sealing groove 63 and the blocking body 74.

[0052] The pre-buried part 80 is provided with a connecting rope 803, the connecting rope 803 penetrates the fireproof partition 70 and is connected to the inner wall of the external supporting plate 72.

[0053] The connecting rod 703 is provided with a sealing ring between the rod body and the small opening, and a sealing rubber ring is arranged between the connecting rope 803 and the fireproof partition 70. The sealing ring and the sealing rubber ring are used to seal and prevent the problem of leaking mortar.

[0054] During construction, the external supporting plate 72 is caused to expand outward to enter the sealing groove 63 by injecting thermal insulation mortar into the hole where the one-way membrane of the external supporting plate 72 is located, after completely entering, the connecting ropes arranged inside are all tensioned as the grouting action continues, thereby causing the fireproof partition 70 to move close to the side of the floor panel 10, thereby forming an embedded structure of the sealing groove 63 and the blocking body 74, and completing the sealing treatment of fireproofing and waterproofing.

[0055] Embodiment 3:

[0056] On the basis of the above-mentioned embodiments, the following improvements are made, the side of the pre-buried part 80 opposite to the fireproof partition 70 is provided with a hooking plate 804 and a connecting plate 805, the hooking plate 804 is arranged on the steel reinforcement cage 50, the connecting plate 805 is arranged opposite to the floor support plate 101 and is provided with a connecting hole on the surface.

[0057] The floor panel 10 is provided with a floor support plate 101 inside, the floor support plate 101 is provided with bare steel reinforcement at the end, and the bare steel reinforcement is provided with an external thread at the end.

[0058] The connecting hole is penetrated by the bare steel reinforcement at the end of the floor support plate 101 and is fixed transversely by a bolt, and at the same time, the hooking plate 804 is fixed on the steel reinforcement cage 50.

[0059] By penetrating the steel reinforcement at the end of the floor support plate 101 and the connecting hole, the transverse fixation of the floor support plate 101 is completed by using a nut, at the same time, the hooking plate 804 and the steel reinforcement cage 50 are fixed by hooking, and finally, the embedding and installation of the pre-buried part 80 are completed after pouring the concrete of the floor panel 10.

[0060] Embodiment 4:

[0061] On the basis of the above embodiment, the following improvements are made, the top and bottom of the prefabricated fireproof thermal insulation outer wall 60 are provided with connecting heads 64, the connecting head 64 of the bottom is located between the inner side form 30 and the outer side form 20, and the connecting head 64 of the top is embedded in the upper floor panel 10. It is convenient to connect and fix with the floor panel 10.

[0062] Embodiment 5:

[0063] On the basis of the above embodiment, the following improvements are made, the middle part of the inner side form 30 is provided with a downward inclined extrusion groove 31, and the extrusion groove 31 is provided with an extrusion block 32, which is used to extrude the concrete in the extrusion groove 31 to the inside of the inner side form 30 and the outer side form 20. During construction, a certain space is reserved in the extrusion groove 31, and after pouring concrete, the internal concrete is extruded inwardly by the extrusion block 32 to complete the internal compaction treatment, avoiding structural problems.

[0064] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A method for assembling a fireproof isolation belt integrated construction of a building outer wall, characterized in that, The application relates to a prefabricated fireproof and heat-insulating outer wall and a construction method thereof. Step 1, lofting Drawing the outer wall inner side line on the floor panel (10) according to the design drawing requirements, and installing the outer side formwork (20) and the inner side formwork (30) on the side of the outer wall construction line, the outer side formwork (20) is fixedly installed on the side of the floor panel (10), the inner side formwork (30) is installed on the floor panel (10), and the perpendicularity of the outer side formwork (20) and the inner side formwork (30) is adjusted; Installing the cushion block (40) at the bottom of the area surrounded by the outer side formwork (20) and the inner side formwork (30), binding the steel cage (50) in the outer side formwork (20) and the inner side formwork (30), and binding and fixing the bottom of the steel cage (50) and the exposed steel bars on the floor panel (10); Step 2, hoisting of the prefabricated fireproof and heat-insulating outer wall (60) single plate The prefabricated fireproof and heat-insulating outer wall (60) is internally provided with vertical cavities (61), the prefabricated fireproof and heat-insulating outer wall (60) single plate is hoisted to the upper side of the steel cage (50), the vertical lower side is in the cavities (61) inside the steel cage (50), and the cavities (61) are fully filled by pouring concrete in the cavities (61); During the pouring process, the concrete will overflow from the bottom of the cavities (61) and flow to the inside of the outer side formwork (20) and the inner side formwork (30), fill the space between the outer side formwork (20) and the inner side formwork (30), and after the concrete reaches the design strength, the outer side formwork (20) and the inner side formwork (30) are removed; Step 3, joint fireproof treatment Installing the fireproof partition piece (70) on the outer side of the floor panel (10), the overall structure of the fireproof partition piece (70) is U-shaped, the top and bottom of the fireproof partition piece (70) are provided with a partition body (71), and the end of the partition body (71) away from the floor panel (10) is close to the middle part, the inner space of the fireproof partition piece (70) is provided with an outer support plate (72), the outer support plate (72) is provided with a grouting hole (73), and the two ends of the outer support plate (72) are respectively used for expanding the two partition bodies (71); The bottom of the upper prefabricated fireproof and heat-insulating outer wall (60) single plate and the top of the lower prefabricated fireproof and heat-insulating outer wall (60) single plate are respectively smeared with fireproof and heat-insulating adhesive; Step 4, partition grouting Connecting the grouting hole (73) with a grouting machine, injecting heat-insulating mortar into the inner space of the fireproof partition piece (70), and moving the outer support plate (72) outward and extruding the two partition bodies (71) along with the injection of the heat-insulating mortar, the two partition bodies (71) are expanded, the partition bodies (71) are respectively attached to the bottom of the upper prefabricated fireproof and heat-insulating outer wall (60) and the top of the lower prefabricated fireproof and heat-insulating outer wall (60), and the fireproof partition of the floor prefabricated fireproof and heat-insulating outer wall is formed.

2. The integrated construction method for assembling the fireproof isolation belt of the building outer wall according to claim 1, characterized in that, The opposite side of the two partition bodies (71) and the two ends of the outer support plate (72) are provided with one-way ratchet structures for the one-way outward movement of the outer support plate (72).

3. The method according to claim 2, wherein the method is characterized in that, The side of the two partition bodies (71) away from each other is provided with a blocking body (74), the inner part of the prefabricated fireproof and heat-insulating outer wall (60) is provided with a fireproof layer (62), and the blocking body (74) is embedded in the corresponding fireproof layer (62) of the prefabricated fireproof and heat-insulating outer wall (60).

4. The integrated construction method for assembling the fireproof isolation belt of the building outer wall according to claim 3, characterized in that, The top and bottom of the fireproof layer (62) are provided with sealing grooves (63) gradually away from the floor panel (10) in the depth direction.

5. The method according to claim 4, wherein the method is characterized in that, The fireproof partition (70) is provided with a positioning rod (701) and a T-shaped hole (702) on the side facing the floor panel (10), the T-shaped hole (702) has a small opening on the side facing the floor panel (10), a connecting rod (703) is installed in the T-shaped hole (702), the floor panel (10) is embedded with a pre-embedded part (80), the pre-embedded part (80) is provided with a positioning hole (801) and an internally threaded hole (802), the positioning rod (701) and the positioning hole (801) are matched, and the connecting rod (703) and the internally threaded hole (802) are matched. The pre-embedded part (80) is provided with a connecting rope (803) penetrating the fireproof partition (70) and connected with the inner wall of the inner supporting plate (72).

6. The method according to claim 5, wherein the method is characterized in that, The connecting rod (703) is provided with a sealing ring between the rod body and the small opening, and the connecting rope (803) and the fireproof partition (70) are provided with a sealing rubber ring.

7. The method according to claim 6, wherein the method is characterized by, The pre-embedded part (80) is provided with a hooking plate (804) and a connecting plate (805) on the side opposite to the fireproof partition (70), the hooking plate (804) is installed on the steel reinforcement cage (50), and the connecting plate (805) is arranged opposite to the floor support plate (101) and provided with a connecting hole on the surface. The floor panel (10) is provided with a floor support plate (101) inside, the floor support plate (101) is provided with bare steel bars at the ends, and the bare steel bars are provided with external threads at the ends. The connecting hole is penetrated by the bare steel bars at the ends of the floor support plate (101) and is fixed by bolts in the transverse direction, and the hooking plate (804) is fixed on the steel reinforcement cage (50).

8. The method according to claim 7, wherein the method is characterized by, The top and bottom of the prefabricated fireproof and heat-insulating outer wall (60) are provided with connecting heads (64), the connecting head (64) at the bottom is located between the inner side form (30) and the outer side form (20), and the connecting head at the top is embedded in the upper floor panel (10).

9. The method according to claim 8, wherein the method further comprises the steps of: providing a plurality of fireproof belts; and assembling the plurality of fireproof belts to the outer wall of the building. The inner side form (30) is provided with a downward inclined extrusion groove (31) in the middle, and the extrusion groove (31) is provided with an extrusion block (32) for extruding the concrete in the extrusion groove (31) to the space between the inner side form (30) and the outer side form (20).

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