Fireproof skirt wall sealing system with thermal insulation for building curtain wall

Abstract

This utility model discloses a fireproof skirt wall sealing system for building curtain walls, relating to the field of fireproof sealing construction technology for curtain walls. It includes a fireproof skirt wall and an upper inter-floor fireproof seal. The upper part of the fireproof skirt wall is fixed to a beam, and the lower part is fixed to the exposed frame horizontal bars at the bottom of the curtain wall. The upper inter-floor fireproof seal is connected to the floor slab and the upper exposed frame horizontal bars of the curtain wall on both sides along its width. The fireproof skirt wall includes several outer protective structures, which are overlapped and fixed along their length. Insulating rock wool is fixed to the side of the outer protective structures facing the curtain wall. This utility model, by setting up a fireproof skirt wall with several outer protective structures and fixing insulating rock wool to the side of the outer protective structures facing the curtain wall, allows the insulating rock wool and outer protective structures to be prefabricated in the factory and then directly installed. Construction is simple, and no dust or scrap material pollutes the environment on-site, posing no harm to construction workers.

Description

Technical Field

[0001] This utility model relates to the field of fireproof sealing technology for curtain walls, and in particular to a fireproof skirt wall sealing system with thermal insulation for building curtain walls. Background Technology

[0002] A fire-resistant curtain wall structure is composed of fire-resistant materials and supporting components. It has certain fire-resistant, smoke-proof, and heat-insulating properties. It works in conjunction with the corresponding building structure or components within a specified fire resistance time to seal the gaps or holes between the building curtain wall and the main building structure.

[0003] like Figure 1 As shown, for steel structure buildings, the existing inter-layer fireproof sealing system for building curtain walls consists of welded square tubes at the bottom of H-beams, with supporting steel keels 2 fixed on the square tubes. The supporting steel keels 2 are filled with 100mm thick insulating rock wool 3, and the three sides of the supporting steel keels 2 are covered with 20mm thick fireproof boards 6 as a skirt wall structure. An inter-layer lower fireproof seal 41 is installed between the skirt wall structure and the curtain wall 20 to seal the gap between the skirt wall structure and the curtain wall 20. The inter-layer lower fireproof seal 41 uses a 1.5mm thick galvanized sheet to connect the skirt wall structure and the exposed frame crossbars 201 at the bottom of the curtain wall 20. A 200mm thick fireproof rock wool 5 is installed on the upper surface of the galvanized sheet. An upper interlayer fireproof seal 42 is installed between the floor slab 30 and the curtain wall 20 above the H-beam to seal the gap between the floor slab 30 and the curtain wall 20. The upper interlayer fireproof seal 42 is made of 1.5mm thick galvanized sheet connecting the exposed frame crossbar 201 of the floor slab 30 and the curtain wall 20. A 200mm thick fireproof rock wool 5 is installed on the lower surface of the galvanized sheet.

[0004] like Figure 2 As shown, for concrete structures, the existing inter-layer fireproof sealing system for building curtain walls consists of a steel keel 2 fixed to the lower part of the concrete beam with expansion bolts. The steel keel 2 is filled with 100mm thick insulating rock wool 3, and the outer three sides of the steel keel 2 are covered with 20mm thick fireproof board 6 as a skirt wall structure. An inter-layer lower fireproof seal 41 is installed between the skirt wall structure and the curtain wall 20 to seal the gap between the skirt wall structure and the curtain wall 20. The inter-layer lower fireproof seal 41 uses a 1.5mm thick galvanized sheet to connect the skirt wall structure and the exposed frame crossbar 201 at the bottom of the curtain wall 20. A 200mm thick fireproof rock wool 5 is installed on the upper surface of the galvanized sheet. A fireproof seal 42 is installed between the floor slab 30 above the concrete beam and the curtain wall 20 to seal the gap between the floor slab 30 and the curtain wall 20. The fireproof seal 42 is made of 1.5mm thick galvanized sheet connecting the exposed frame crossbar 201 of the floor slab 30 and the curtain wall 20. A 200mm thick fireproof rock wool 5 is installed on the lower surface of the galvanized sheet.

[0005] However, existing new interlayer fireproof sealing systems for building curtain walls require on-site cutting and assembly, which is difficult to construct and generates a lot of dust and scrap material that pollutes the environment. Utility Model Content

[0006] This utility model provides a fireproof skirt wall sealing system with thermal insulation for building curtain walls to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A fireproof skirt wall sealing system for building curtain walls includes an insulated fireproof skirt wall and an upper inter-floor fireproof seal; the upper part of the insulated fireproof skirt wall is fixed to a beam, and the lower part is fixed to the exposed frame horizontal bar at the bottom of the curtain wall; the upper inter-floor fireproof seal is connected to the floor slab and the exposed frame horizontal bar at the top of the curtain wall on both sides along the width direction; the insulated fireproof skirt wall includes several external enclosure structures, which are overlapped and fixed together along the length direction; thermal insulation rock wool is fixed to the side of the external enclosure structure facing the curtain wall.

[0009] Preferably, the external enclosure structure includes: a supporting steel plate, a fireproof and heat-insulating board, and directional expansion cotton strips; the upper bent edge of the supporting steel plate is fixedly connected to the beam, and the lower bent edge abuts or overlaps with the exposed frame crossbar of the lower part of the curtain wall;

[0010] The fireproof and heat-insulating board is fixed to the side of the supporting steel plate away from the curtain wall by heat-insulating welding studs. One end of the supporting steel plate extends out of the end face of the fireproof and heat-insulating board along the length direction, and the other end is flush with the end face of the fireproof and heat-insulating board.

[0011] A directional expansion strip is fixed between the upper part of the supporting steel plate and the beam, and a directional expansion strip is also fixed between the bent edge of the lower part of the supporting steel plate and the exposed frame crossbar of the lower part of the curtain wall.

[0012] Preferably, the insulating rock wool is located on the side of the supporting steel plate facing the curtain wall, and the insulating rock wool is fixed to the supporting steel plate by insulating welding studs.

[0013] Preferably, both ends of the fireproof and heat-insulating board are covered with waterproof protective boards.

[0014] Preferably, the supporting steel plate has a bending angle, and the corner formed by the two fireproof and heat-insulating plates meeting at the bending angle is provided with an anti-collision protection plate, which covers the outer edge of one of the fireproof and heat-insulating plates.

[0015] Preferably, the concave surface of the head of the insulating welding stud faces the fireproof and heat-insulating board.

[0016] Preferably, the fireproof and heat-insulating board is made of ceramic fiber board.

[0017] Preferably, the fireproof and heat-insulating board contains a water-repellent agent.

[0018] Preferably, the upper fireproof sealing between floors includes: a supporting steel plate, a fireproof and heat-insulating board, and directional expansion cotton strips; the fireproof and heat-insulating board is fixed to the side of the supporting steel plate facing the fireproof and heat-insulating skirt wall by heat-insulating welding studs, the supporting steel plate extends from one side of the fireproof and heat-insulating board along the width direction and is fixedly connected to the floor slab, the other side is flush with the end face of the fireproof and heat-insulating board and abuts or overlaps with the exposed frame horizontal bar at the top of the curtain wall; directional expansion cotton strips are provided between the supporting steel plate and the exposed frame horizontal bar at the top of the curtain wall.

[0019] Preferably, an anti-collision guard plate is also fixed on the side of the supporting steel plate that is flush with the end face of the fireproof and heat-insulating board, and the anti-collision guard plate covers the end face of the fireproof and heat-insulating board.

[0020] Beneficial effects:

[0021] The present application discloses a fireproof skirt wall sealing system for building curtain walls. By setting up a fireproof skirt wall including several external enclosure structures, and by fixing the external enclosure structures to the curtain wall side, the fireproof skirt wall can be directly installed after the fireproof skirt wall and the external enclosure structures are processed into one piece in the factory. The construction is simple, and no dust or scrap material is generated on site to pollute the environment, and it is harmless to the construction workers. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 For existing interlayer fire-stopping systems for steel structure buildings;

[0024] Figure 2 For existing interlayer fire-stopping systems for concrete-structured buildings;

[0025] Figure 3 This utility model discloses a structural schematic diagram of a fireproof skirt wall sealing system for building curtain walls with thermal insulation. Figure 1 ;

[0026] Figure 4 for Figure 3 Enlarged view of a section of section II;

[0027] Figure 5 for Figure 3 Enlarged view of a section of section III;

[0028] Figure 6 for Figure 3 A magnified view of a section of section IV;

[0029] Figure 7 This utility model discloses a structural schematic diagram of a fireproof skirt wall sealing system for building curtain walls with thermal insulation. Figure 2 ;

[0030] Figure 8 for Figure 7 A magnified view of section V;

[0031] Figure 9 This is a schematic diagram of the external enclosure structure of a fireproof skirt wall sealing system for a building curtain wall disclosed in this utility model.

[0032] Figure 10 for Figure 9 Sectional view of DD;

[0033] Figure 11 for Figure 9 Sectional view of EE;

[0034] Figure 12 for Figure 9 A cross-sectional view of FF.

[0035] 1. External envelope structure; 11. Supporting steel plate; 111. Bending edge; 112. Anti-collision guard plate; 12. Fireproof and heat-insulating board; 121. Waterproof protective board; 122. Anti-collision protective board; 13. Directional expansion cotton strip; 14. Thermal insulation welding stud; 2. Supporting steel keel; 3. Thermal insulation rock wool; 41. Fireproof sealing at the lower part of the inter-floor; 42. Fireproof sealing at the upper part of the inter-floor; 5. Fireproof rock wool; 6. Fireproof board; 10. Beam; 20. Curtain wall; 201. Exposed frame crossbar; 30. Floor slab. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] A fireproof skirting wall sealing system for building curtain walls, combined with Figures 3-12As shown, the structure includes an insulated fireproof skirt wall and an upper inter-floor fireproof seal 42. The upper part of the insulated fireproof skirt wall is fixed to the beam 10, and the lower part is connected to the exposed frame horizontal bar 201 at the bottom of the curtain wall 20. The upper inter-floor fireproof seal 42 is connected to the floor slab 30 and the exposed frame horizontal bar 201 at the top of the curtain wall 20 on both sides along the width direction. The insulated fireproof skirt wall includes several outer envelope structures 1, which are overlapped and fixed along the length direction to achieve extension. Insulating rock wool 3 is fixed on the side of the outer envelope structure 1 facing the curtain wall 20. This application achieves this by setting an insulated fireproof skirt wall including several outer envelope structures 1, and by fixing the insulating rock wool 3 on the side of the outer envelope structure 1 facing the curtain wall 20, so that the insulating rock wool 3 and the outer envelope structure 1 can be directly installed after being processed into a whole in the factory. The construction is simple, the installation is convenient, and the construction period is short. Moreover, no dust or scrap material is generated on site to pollute the environment, and there is no harm to the health of construction personnel.

[0038] Preferably, the outer enclosure structure 1 includes: a supporting steel plate 11, a fireproof and heat-insulating board 12, and a directional expansion cotton strip 13; the upper bent edge 111 of the supporting steel plate 11 is fixedly connected to the beam 10, and the lower bent edge 111 abuts or overlaps with the exposed frame crossbar 201 of the lower part of the curtain wall 20.

[0039] The fireproof and heat-insulating board 12 is fixed to the side of the supporting steel plate 11 away from the curtain wall 20 by heat-insulating welding nails 14. One end of the supporting steel plate 11 extends out of the end face of the fireproof and heat-insulating board 12 along the length direction, and the other end is flush with the end face of the fireproof and heat-insulating board 12.

[0040] A directional expansion strip 13 is fixed between the upper part of the supporting steel plate 11 and the beam 10, and a directional expansion strip 13 is provided between the bent edge 111 of the lower part of the supporting steel plate 11 and the exposed frame crossbar 201 of the lower part of the curtain wall 20.

[0041] The skirt wall formed by the external envelope structure 1 of this application simultaneously seals the lower part of the curtain wall 20, eliminating the need for fireproof sealing at the lower part of the inter-story structure; through the integrated design of the skirt wall structure and the fireproof sealing at the lower part of the inter-story structure, fire integrity is ensured.

[0042] Specifically, the bent edge 111 on the upper part of the supporting steel plate 11 is connected to the H-beam via a weldless fixing seat. The weldless fixing seat includes a clamping part and a connecting part. The clamping part is clamped onto the lower flange of the H-beam, and the bent edge 111 forms a hook that hooks onto the connecting part. The bent edge 111 on the upper part of the supporting steel plate 11 is connected to the concrete beam via a mounting seat. The mounting seat includes a fixing part and a connecting part. The fixing part is fixed to the bottom of the concrete beam by expansion bolts, and the bent edge 111 forms a hook that hooks onto the connecting part.

[0043] Preferably, the insulating rock wool 3 is located on the side of the supporting steel plate 11 facing the curtain wall 20, and the insulating rock wool 3 is fixed to the supporting steel plate 11 by insulating welding studs 14. The concave surface of the nail head of the insulating welding stud 14 faces the insulating rock wool 3, ensuring that the insulating welding stud 14 fixes the insulating rock wool 3 to the supporting steel plate 11, and the concave surface of the nail head facing the insulating rock wool 3 can prevent scratches.

[0044] Preferably, both ends of the fireproof and heat-insulating board 12 are covered with waterproof protective plates 121. This application, by covering both ends of the fireproof and heat-insulating board 12 along its length with waterproof protective plates 121, prevents rainwater from flowing through the overlap gaps to the ends of the fireproof and heat-insulating board 12 and between the fireproof and heat-insulating board 12 and the supporting steel plate 11. This solves the problem of rainwater flowing downwards and seeping through the overlap gaps of the two outer enclosure structures 1, causing the fireproof and heat-insulating board 12 to absorb water, powder, and fall off. Simultaneously, the waterproof protective plates 121 also protect the ends of the fireproof and heat-insulating board 12.

[0045] Specifically, the waterproof protective plate 121 on the end face of the fireproof and heat-insulating plate 12 extending from the supporting steel plate 11 is "L" shaped to enhance the waterproof effect.

[0046] Specifically, the waterproof protective board 121 is made of angle steel, and the long side of the waterproof protective board 121 is welded to the extended part of the supporting steel plate 11. The end face of the fireproof and heat-insulating board 12 is bonded to the short side of the waterproof protective board 121. When rainwater flows in from the overlapping gap, the rainwater will flow away from the waterproof protective board 121 without contacting the surface of the fireproof and heat-insulating board 12.

[0047] Specifically, the waterproof protective plate 121 on the end face of the fireproof and heat-insulating plate 12, which is flush with one end of the supporting steel plate 11, is integrally formed with the supporting steel plate 11, and the end face of the fireproof and heat-insulating plate 12 is bonded to the waterproof protective plate 121. In this embodiment, bending forming is used.

[0048] Specifically, a waterproof protective plate 121 is also provided on the upper end face of the supporting steel plate 11. The directional expansion strip 13 of the outer enclosure structure 1 is fixed to the waterproof protective plate 121 on the upper end face and the bottom surface of the beam 10 by a double-sided adhesive layer. The directional expansion strip 13 between the bent edge 111 at the lower part of the supporting steel plate 11 and the exposed frame crossbar 201 at the lower part of the curtain wall 20 is fixed to the outer side of the bent edge 111 by a double-sided adhesive layer and abuts against the exposed frame crossbar 201 of the curtain wall 20.

[0049] Preferably, the supporting steel plate 11 has a bending angle, and an anti-collision protection plate 122 is provided at the external corner formed by the two fireproof and heat-insulating plates 12 meeting at the bending angle. The anti-collision protection plate 122 covers the outer edge of one of the fireproof and heat-insulating plates 12. The supporting steel plate 11 is bent and processed into a corresponding structural shape according to the position and connection relationship between the beam 10 and the curtain wall 20 of the building structure, such as the right-angle structure shown in the figure. The supporting steel plate 11 is located above the fireproof and heat-insulating plate 12, so that the supporting steel plate 11 is bent to form an internal corner; the flat fireproof and heat-insulating plates 12 are spliced ​​to adapt to the shape of the supporting steel plate 11, so that the two fireproof and heat-insulating plates 12 meeting will form an external corner. This leaves the external corner of the fireproof and heat-insulating plate 12 exposed without protection, and it is very easy to be damaged by collision during transportation and construction. Therefore, the external corner of one of the two fireproof and heat-insulating plates 12 forming the external corner is protected by covering it with an anti-collision protection plate 122.

[0050] Specifically, the anti-collision protection plate 122 is U-shaped, which can protect both right angles of the outer edge of the fireproof and heat-insulating plate 12, thereby improving the protection effect. In this embodiment, the anti-collision protection plate 122 is made of channel steel.

[0051] Preferably, the concave surface of the nail head of the fireproof and heat-insulating board 12 is facing the fireproof and heat-insulating board 12, so as to ensure that the fireproof and heat-insulating board 12 is fixed on the supporting steel plate 11 by the fireproof and heat-insulating nail 14, and the concave surface of the nail head facing the fireproof and heat-insulating board 12 can prevent scratches.

[0052] Preferably, the fireproof and heat-insulating board 12 is made of ceramic fiber board, which is easy to cut and install, does not produce powder, and is convenient for construction; it has excellent wind erosion resistance; it is suitable for continuous production, with uniform fiber distribution and stable performance.

[0053] Preferably, the fireproof and heat-insulating board 12 contains a water-repellent agent, which can effectively prevent the anti-collision protective board 12 from powdering and falling off due to water absorption or absorption of moisture in the air.

[0054] Preferably, the upper interlayer fireproof seal 42 adopts a structure similar to the outer enclosure structure 1. The upper interlayer fireproof seal 42 includes: a supporting steel plate 11, a fireproof and heat-insulating board 12, and directional expansion cotton strips 13. The fireproof and heat-insulating board 12 is fixed to the side of the supporting steel plate 11 facing the heat-insulating and fireproof skirt wall by heat-insulating welding nails 14. The supporting steel plate 11 extends from one side of the fireproof and heat-insulating board 12 along the width direction and is fixedly connected to the floor slab 30. The other side is flush with the end face of the fireproof and heat-insulating board 12 and abuts against the exposed frame horizontal bar 201 of the upper part of the curtain wall 20. A directional expansion cotton strip 13 is provided between the supporting steel plate 11 and the exposed frame horizontal bar 201 of the upper part of the curtain wall 20.

[0055] Preferably, an anti-collision guard plate 112 is also fixed on the side of the supporting steel plate 11 that is flush with the end face of the fireproof and heat-insulating board 12, and the anti-collision guard plate 112 covers the end face of the fireproof and heat-insulating board 12. The anti-collision guard plate 112 is integrally formed with the supporting steel plate 11.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fireproof skirting wall sealing system with thermal insulation for building curtain walls, characterized in that, It includes a thermally insulated fireproof skirt wall and an inter-floor fireproof seal (42); the upper part of the thermally insulated fireproof skirt wall is fixed to the beam (10) and the lower part is fixed to the exposed frame horizontal bar (201) at the bottom of the curtain wall (20); the inter-floor fireproof seal (42) is connected to the floor slab (30) and the exposed frame horizontal bar (201) at the top of the curtain wall (20) on both sides along the width direction; the thermally insulated fireproof skirt wall includes several external protective structures (1), and several external protective structures (1) are overlapped and fixed along the length direction; thermally insulated rock wool (3) is fixed on the side of the external protective structure (1) facing the curtain wall (20).

2. The fireproof skirt wall sealing system with thermal insulation for building curtain walls according to claim 1, characterized in that, The external enclosure structure (1) includes: a supporting steel plate (11), a fireproof and heat-insulating board (12), and a directional expansion cotton strip (13); the upper bent edge (111) of the supporting steel plate (11) is fixedly connected to the beam (10), and the lower bent edge (111) abuts or overlaps with the exposed frame crossbar (201) of the lower part of the curtain wall (20); The fireproof and heat-insulating board (12) is fixed to the side of the supporting steel plate (11) away from the curtain wall (20) by heat-insulating welding nails (14). One end of the supporting steel plate (11) extends out of the end face of the fireproof and heat-insulating board (12) along the length direction, and the other end is flush with the end face of the fireproof and heat-insulating board (12). A directional expansion strip (13) is fixed between the upper part of the supporting steel plate (11) and the beam (10), and a directional expansion strip (13) is provided between the bent edge (111) of the lower part of the supporting steel plate (11) and the exposed frame crossbar (201) of the lower part of the curtain wall (20).

3. A fireproof skirt wall sealing system for building curtain walls according to claim 2, characterized in that, The insulating rock wool (3) is located on the side of the supporting steel plate (11) facing the curtain wall (20), and the insulating rock wool (3) is fixed to the supporting steel plate (11) by insulating welding nails (14).

4. A fireproof skirt wall sealing system with thermal insulation for building curtain walls according to claim 2, characterized in that, The fireproof and heat-insulating board (12) is covered with waterproof protective boards (121) on both ends.

5. A fireproof skirt wall sealing system for building curtain walls according to claim 2, characterized in that, The supporting steel plate (11) has a bending angle, and the two fireproof and heat-insulating plates (12) are connected at the bending angle to form an anti-collision protection plate (122), which covers the outer edge of one of the fireproof and heat-insulating plates (12).

6. A fireproof skirt wall sealing system for building curtain walls according to claim 2, characterized in that, The concave surface of the head of the insulating welding stud (14) faces the fireproof and heat-insulating board (12).

7. A fireproof skirt wall sealing system for building curtain walls according to claim 2, characterized in that, The fireproof and heat-insulating board (12) is made of ceramic fiber board.

8. A fireproof skirt wall sealing system for building curtain walls according to claim 7, characterized in that, The fireproof and heat-insulating board (12) contains a water-repellent agent.

9. A fireproof skirt wall sealing system for building curtain walls according to claim 1, characterized in that, The upper fireproof sealing (42) between the floors includes: a supporting steel plate (11), a fireproof and heat-insulating board (12), and directional expansion cotton strips (13); the fireproof and heat-insulating board (12) is fixed to the side of the supporting steel plate (11) facing the heat-insulating and fireproof skirt wall by heat-insulating welding nails (14), the supporting steel plate (11) extends from one side of the fireproof and heat-insulating board (12) along the width direction and is fixedly connected to the floor slab (30), and the other side is flush with the end face of the fireproof and heat-insulating board (12) and abuts or overlaps with the exposed frame horizontal bar (201) of the upper part of the curtain wall (20); directional expansion cotton strips (13) are provided between the supporting steel plate (11) and the exposed frame horizontal bar (201) of the upper part of the curtain wall (20).

10. A fireproof skirt wall sealing system for building curtain walls according to claim 9, characterized in that, A collision protection plate (112) is also fixed on one side of the supporting steel plate (11) that is flush with the end face of the fireproof and heat-insulating plate (12), and the collision protection plate (112) covers the end face of the fireproof and heat-insulating plate (12).

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