Steel structure staircase ceiling system and construction method thereof

Abstract

The invention discloses a steel structure staircase suspended ceiling system and a construction method thereof, the system comprises a steel structure staircase, a ceramic tile structure and a suspended ceiling structure, and a fireproof thermal insulation layer and a sound insulation layer are arranged between the steel structure staircase and the suspended ceiling structure; the suspended ceiling structure is installed on the steel structure stair through the connecting assembly. The connecting assembly comprises a connecting piece, an upper connecting part and a lower connecting part. The suspended ceiling structure comprises suspenders, assembled keels and suspended ceiling plates. The method comprises the steps of foundation construction, connecting assembly installation and adjustment and construction of a ceramic tile structure and / or a suspended ceiling structure. According to the system, mechanical connection is adopted, damage to the steel structure staircase is reduced, installation is easy and convenient, synchronous or independent construction of the steel structure staircase can be achieved, a ceramic tile structure cannot be damaged, the good heat preservation and noise reduction capacity is achieved, construction operation is convenient, and the good popularization effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of ceiling structure construction of steel structure stairs, and in particular to a steel structure staircase ceiling system and a construction method thereof. Background Art

[0002] In recent years, steel structure buildings have gradually occupied the dominant position in the construction market. Steel structures have many advantages, but the decoration technology has not yet been fully matched and applied, such as the construction method of steel structure staircase ceilings. At present, the ceilings of steel structure staircases are usually gypsum board ceilings, decorated with putty paint, which are spacious, bright and have good effects. However, there are some hidden dangers in the construction of ceilings on steel structure stairs. The mainstream ceiling method is to fix the hanger on the stair treads with expansion bolts. However, during the ceiling construction, the treads are often tiled or other surface treatments have been done. The later drilling of holes and expansion bolts is likely to disturb the tread surface, thereby affecting the quality of the tread surface layer. Others use welding to fix the hanger to the steel stairs, but this method not only has high technical requirements for workers, but also needs to be operated by professional welders. The construction process is complicated. Electricians need to connect the power first, set up fire extinguishers, issue fire permits, and have fire watchers and so on. It is also easy to cause the steel plates of the steel stair treads to melt through, and the quality of the welds cannot be verified. Once the hanger falls off, it will directly cause the ceiling to collapse, endangering the personal safety of pedestrians. Excessive welding also causes more quality risks to the steel stairs. Summary of the invention

[0003] The purpose of the present invention is to provide a steel structure staircase ceiling system and a construction method thereof. The system adopts mechanical connection to reduce damage to the steel structure stairs, is simple and convenient to install, can be constructed synchronously or separately with the steel structure stairs, also has good thermal insulation and noise reduction capabilities, is convenient for construction operations, and has a strong promotion effect.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A steel structure staircase ceiling system comprises a steel structure staircase, a tile structure arranged at the top of the steel structure staircase and a ceiling structure arranged at the bottom of the steel structure staircase, wherein a fireproof insulation layer and a sound insulation layer are arranged between the steel structure staircase and the ceiling structure; the ceiling structure is installed on the steel structure staircase through a connecting assembly, wherein the connecting assembly comprises a connecting piece fixedly installed on the steel structure staircase, an upper connecting part arranged at the top of the connecting piece and a lower connecting part arranged at the bottom of the connecting piece, wherein the upper connecting part is located in the tile structure and the lower connecting part is located at the lower side of the steel structure staircase; the ceiling structure comprises a suspension rod connected to the lower connecting part, an assembled keel installed at the bottom of the suspension rod and a ceiling board installed on the assembled keel.

[0005] Preferably, the cross-sectional shape of the sound insulation layer is adapted to the steel structure staircase, and the sound insulation layer is fixedly arranged at the bottom of the steel structure staircase.

[0006] Preferably, the fireproof and heat-insulating layer is fixedly arranged at the bottom of the sound insulation layer.

[0007] Preferably, the tile structure includes a mortar leveling layer, a steel mesh, an adhesive layer and tiles which are fixed in sequence on the top of the steel structure staircase, and the height of the upper connecting portion is not greater than the thickness of the mortar leveling layer.

[0008] Preferably, the steel wire mesh is located in the mortar leveling layer, 5 to 10 mm away from the top of the steel structure stairs; bolts and gaskets are used to fix the steel wire mesh to the top of the upper connecting part.

[0009] Preferably, the assembled keel includes a plurality of keel units connected by snap-fitting and a connecting plate arranged on the top of the keel units, and the suspension rod is connected to the connecting plate.

[0010] Preferably, the keel unit comprises a main keel and a secondary keel connected in transverse and longitudinal directions, a clamping piece is provided in the circumferential direction of the keel unit, and two adjacent keel units are connected via the clamping piece.

[0011] Preferably, an adjustable length module is provided on the suspension rod, and the adjustable length module is electrically connected to the control unit and can adjust the height of the assembled keel according to the control command of the control unit.

[0012] A construction method for a steel structure staircase ceiling system, the construction method comprising the following steps: Step 1: Basic construction: remove rust and clean the surface of the steel structure stairs, then apply the interface agent to the front, bottom and facade of the steel structure stairs. Apply the interface agent evenly and let it dry before proceeding with subsequent operations. Step 2: assemble and adjust the connection components. Drill holes at preset positions on the steel structure stairs, install the connection components in the drilled holes, and adjust the exposed heights of the upper connection part and the lower connection part to be within a preset range. Step three, the construction of the tile structure and / or the ceiling structure. During the actual construction, according to the construction requirements, choose to construct the tile structure or the ceiling structure first; when constructing the tile structure, first fix the wire mesh to the top of the upper connection part with bolts, and then use the clamping support to fix the position of the wire mesh, and then use the adjustable tensioner to tension the wire mesh. After the tensioning is completed, pour cement mortar to form a mortar leveling layer, and finally evenly apply the adhesive layer on the back of the tile, and stick it on the top of the dried mortar leveling layer to complete the construction of the tile structure; when constructing the ceiling structure, first connect the hanger to the lower connection part, and then construct the fireproof insulation layer and the sound insulation layer, and then assemble the assembled keel on site, and then connect the hanger to the assembled keel, adjust the installation height of the assembled keel to the design elevation, and finally install the ceiling board on the assembled keel to complete the construction of the ceiling structure.

[0013] Preferably, in step three, the tile structure and the ceiling structure are constructed simultaneously.

[0014] In the present invention, the provided connection assembly can be used for the installation of the wire mesh, which plays a role in limiting and fixing the position of the wire mesh, and can also be used to connect the hanger. It is a two-in-one device and is a key component for the separate construction of the tile structure and the ceiling structure. The provided fireproof insulation layer and sound insulation layer can make the steel structure staircase and the ceiling structure have the ability of heat preservation, heat insulation, flame retardancy and sound insulation and noise reduction, providing comfort and safety in use. The provided assembled keel adopts an assembled structure, which is easy to disassemble and assemble, reduces transportation costs, and improves the convenience of installation. The provided adjustable length module increases the self-adjustment ability of the ceiling structure, and can adjust the height of the ceiling according to the set control instructions, thereby increasing the versatility of the ceiling.

[0015] During construction, the tile structure and ceiling structure can be constructed simultaneously as needed to shorten the construction period. The tile structure or ceiling structure can be constructed separately, and the construction of the two structures is not constrained by each other. Existing steel structure stairs (with tile structure or ceiling structure alone) can also be renovated, that is, ceiling structure can be added or tile structure can be laid on the existing steel structure stairs, and the construction scene is not restricted. The tile structure after construction has good structural stability and is not prone to hollowing or falling of tiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the assembled keel structure of the present invention; Figure 3 It is a partial schematic diagram of the installation of the adjustable tensioning member structure of the present invention; In the figure: 1. Steel structure stairs; 2. Ceramic tile structure; 3. Ceiling structure; 4. Fireproof insulation layer; 5. Sound insulation layer; 6. Connection components; 7. Adjustable length module; 8. Snap-on pillars; 9. Adjustable tensioner; 20. Mortar leveling layer; 21. Steel wire mesh; 22. Adhesive layer; 23. Ceramic tile; 30. Hanging rod; 31. Assembled keel; 32. Ceiling board; 60. Connection piece; 61. Upper connection part; 62. Lower connection part; 90. U-shaped hanger; 91. Adjustment screw; 92. Support column; 93. Adjustment nut; 310. Keel unit; 311. Connection plate; 312. Snap-on piece. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1 , Figure 2 and Figure 3A steel structure staircase ceiling system is shown, comprising a steel structure staircase 1, a tile structure 2 arranged on the top of the steel structure staircase 1, and a ceiling structure 3 arranged at the bottom of the steel structure staircase 1. The tile structure 2 comprises a mortar leveling layer 20, a steel wire mesh 21, an adhesive layer 22, and a tile 23 fixed in sequence on the top of the steel structure staircase 1. The steel wire mesh 21 is located in the mortar leveling layer 20, 5 to 10 mm away from the top of the steel structure staircase 1; the steel wire mesh 21 is fixed to the top of the upper connecting part 61 by bolts and gaskets. Specifically, an anti-skid groove is arranged on the surface of the tile 23 to improve the anti-skid ability. Of course, anti-skid tiles can also be used to prevent skidding as a whole. The adhesive layer 22 is 8 to 15 mm cement mortar. During the pasting operation, the adhesive 22 is evenly applied to the back of the tile 23, spread with a toothed scraper, and combined with the mortar leveling layer 20. The adhesive layer 22 is thin, which reduces the pressure on the steel structure staircase 1 and improves the structural strength. The steel wire mesh 21 can be evenly arranged between the mortar leveling layer 20 and the steel structure staircase 1, which can improve the tension between the mortar leveling layer 20 and the steel structure staircase 1 and improve the overall structural strength of the staircase.

[0018] The ceiling structure 3 is installed on the bottom of the steel structure staircase 1 through the connection assembly 6, which includes a connection member 60 fixedly installed on the steel structure staircase 1, an upper connection part 61 fixedly arranged on the top of the connection member 60, and a lower connection part 62 fixedly arranged on the bottom of the connection member 60. The upper connection part 61 is located in the tile structure 2, and the lower connection part 62 is located at the lower side of the steel structure staircase 1, and is used to connect with the suspension rod 30. The height of the upper connection part 61 is not greater than the thickness of the mortar leveling layer 20.

[0019] A fireproof insulation layer 4 and a sound insulation layer 5 are provided between the steel structure staircase 1 and the ceiling structure 3. The cross-sectional shape of the sound insulation layer 5 matches the cross-sectional shape of the steel structure staircase 1. The sound insulation layer 5 is fixedly provided at the bottom of the steel structure staircase 1 by adhesive bonding, and is wrapped along the bottom of the steel structure staircase 1. The sound insulation layer 5 is made of a glass wool punched calcium silicate board. The fireproof insulation layer 4 is fixedly provided at the bottom of the sound insulation layer 5, and the fireproof insulation layer 4 is made of a fireproof insulation rock wool board.

[0020] The ceiling structure 3 includes a hanger rod 30 connected to the lower connecting portion 62, an assembled keel 31 installed at the bottom of the hanger rod 30, and a ceiling board 32 installed on the bottom of the assembled keel 31. The assembled keel 31 includes a plurality of keel units 310 connected by snap-fitting and a connecting plate 311 arranged at the top of the keel unit 310, and the hanger rod 30 is connected to the connecting plate 311. The hanger rod 30 uses a screw rod, and the connection position with the connecting plate 311 can be adjusted to achieve the height adjustment of the keel unit 310. The keel unit 310 includes a main keel and a secondary keel connected horizontally and vertically. A snap-fitting piece 312 is arranged in the circumferential direction of the keel unit 310, and two adjacent keel units 310 are connected by the snap-fitting piece 312. During actual installation, two adjacent keel units 310 can also be reinforced by a reinforcing plate and a fastener. In a preferred embodiment, an adjustable length module 7 is provided on the suspension rod 30. The adjustable length module 7 is electrically connected to the control unit and can adjust the height of the assembled keel 31 according to the control instructions of the control unit. Specifically, the adjustable length module 7 can be an electric push rod with automatic control, so that the ceiling structure 3 can be adjusted up and down as needed.

[0021] like Figure 1 , Figure 2 and Figure 3 A construction method of a steel structure staircase ceiling system is shown, and the construction method comprises the following steps: Step 1: basic construction. The surface of the steel structure staircase 1 is rust-removed and cleaned. Then the interface agent is applied to the front, bottom and facade of the steel structure staircase 1. The interface agent is applied evenly and can be carried out after drying.

[0022] Step 2: Install and adjust the connecting component 6. Drill a hole at a preset position on the steel structure staircase 1, install the connecting component 6 in the drilled hole, adjust the exposed height of the upper connecting part 61 and the lower connecting part 62 to be within a preset range, and the top surface of the upper connecting part 61 is 4 to 8 mm away from the top surface of the steel structure staircase 1. A connecting hole is set on the lower connecting part 62, and the hanger 30 is connected to the connecting hole through a nut.

[0023] Step 3, construction of the tile structure 2 and / or ceiling structure 3. During actual construction, according to the construction requirements, choose to construct the tile structure 2 or ceiling structure 3 first; during the construction of the tile structure 2, first fix the steel mesh 21 to the top of the upper connection part 61 with bolts, and then use the clamping support 8 to fix the position of the steel mesh 21. The clamping support 8 is provided with a clamping groove, and the steel wire of the steel mesh 21 is located in the clamping groove. The position of the steel mesh 21 is limited to improve the reliability of its connection with the steel structure staircase 1. Then use the adjustable tensioner 9 to tension the steel mesh 21. After the tensioning is completed, pour cement mortar to form a mortar leveling layer 20. Finally, evenly apply the adhesive layer 22 on the back of the tile 23 and stick it on the top of the dried mortar leveling layer 20 to complete the construction of the tile structure. The adjustable tensioner 9 includes a U-shaped hanger 90 connected to the wire mesh 21, an adjusting screw 91 installed on the end of the U-shaped hanger 90, a support column 92 fixedly installed on the steel structure staircase 1 by threads, and an adjusting nut 93 connected to the adjusting screw 91. A through hole is provided on the support column 92, and one end of the adjusting screw 91 passes through the through hole. The tensioning force of the wire mesh 21 is adjusted by screwing the adjusting nut 93.

[0024] When constructing the suspended ceiling structure 3, first connect the suspension rod 30 to the lower connection part 62, then construct the sound insulation layer 5 and the fireproof insulation layer 4 in turn, then assemble the assembled keel 31 on site, then connect the suspension rod 30 to the assembled keel 31, adjust the installation height of the assembled keel 31 to the designed elevation, and finally install the suspended ceiling panel 32 on the assembled keel 31 to complete the construction of the suspended ceiling structure 3.

[0025] In step three, the tile structure 2 and the ceiling structure 3 may also be constructed simultaneously.

[0026] The above embodiments are only some illustrations of the concept and implementation of the present invention, and are not intended to limit the same. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A ceiling system for a steel structure staircase, comprising a steel structure staircase, a tile structure arranged at the top of the steel structure staircase and a ceiling structure arranged at the bottom of the steel structure staircase, characterized in that: A fireproof insulation layer and a sound insulation layer are arranged between the steel structure staircase and the ceiling structure; the ceiling structure is installed on the steel structure staircase through a connecting assembly, and the connecting assembly includes a connecting piece fixedly installed on the steel structure staircase, an upper connecting part arranged on the top of the connecting piece, and a lower connecting part arranged at the bottom of the connecting piece, the upper connecting part is located in the tile structure, and the lower connecting part is located on the lower side of the steel structure staircase; the ceiling structure includes a hanger connected to the lower connecting part, an assembled keel installed at the bottom of the hanger, and a ceiling board installed on the assembled keel.

2. The steel structure staircase ceiling system according to claim 1 is characterized by: The cross-sectional shape of the sound insulation layer is adapted to the steel structure staircase, and the sound insulation layer is fixedly arranged at the bottom of the steel structure staircase.

3. The steel structure staircase ceiling system according to claim 1 or 2, characterized in that: The fireproof and heat-insulating layer is fixedly arranged at the bottom of the sound-insulating layer.

4. The steel structure staircase ceiling system according to claim 1 is characterized by: The tile structure comprises a mortar leveling layer, a steel mesh, an adhesive layer and tiles which are fixedly arranged in sequence on the top of the steel structure staircase, and the height of the upper connecting part is not greater than the thickness of the mortar leveling layer.

5. The steel structure staircase ceiling system according to claim 4 is characterized by: The steel wire mesh is located in the mortar leveling layer, 5 to 10 mm away from the top of the steel structure stairs; bolts and washers are used to fix the steel wire mesh on the top of the upper connecting part.

6. The steel structure staircase ceiling system according to claim 1, characterized in that: The assembled keel comprises a plurality of keel units connected by snap-fitting and a connecting plate arranged on the top of the keel units, and the suspension rod is connected to the connecting plate.

7. The steel structure staircase ceiling system according to claim 6 is characterized by: The keel unit comprises a main keel and a secondary keel connected in transverse and longitudinal directions. A clamping piece is arranged in the circumferential direction of the keel unit, and two adjacent keel units are connected via the clamping piece.

8. The steel structure staircase ceiling system according to claim 1 is characterized by: An adjustable length module is arranged on the suspension rod, and the adjustable length module is electrically connected to the control unit, and can adjust the height of the assembled keel according to the control instruction of the control unit.

9. A construction method for a steel structure staircase ceiling system according to any one of claims 1 to 8, characterized in that: The construction method comprises the following steps: Step 1: Basic construction: remove rust and clean the surface of the steel structure stairs, then apply the interface agent to the front, bottom and facade of the steel structure stairs. Apply the interface agent evenly and let it dry before proceeding with subsequent operations. Step 2: assemble and adjust the connection components. Drill holes at preset positions on the steel structure stairs, install the connection components in the drilled holes, and adjust the exposed heights of the upper connection part and the lower connection part to be within a preset range. Step three, the construction of the tile structure and / or the ceiling structure. During the actual construction, according to the construction requirements, choose to construct the tile structure or the ceiling structure first; when constructing the tile structure, first fix the wire mesh to the top of the upper connection part with bolts, and then use the clamping support to fix the position of the wire mesh, and then use the adjustable tensioner to tension the wire mesh. After the tensioning is completed, pour cement mortar to form a mortar leveling layer, and finally evenly apply the adhesive layer on the back of the tile, and stick it on the top of the dried mortar leveling layer to complete the construction of the tile structure; when constructing the ceiling structure, first connect the hanger to the lower connection part, and then construct the fireproof insulation layer and the sound insulation layer, and then assemble the assembled keel on site, and then connect the hanger to the assembled keel, adjust the installation height of the assembled keel to the design elevation, and finally install the ceiling board on the assembled keel to complete the construction of the ceiling structure.

10. The construction method according to claim 9, characterized in that: In step three, the tile structure and the ceiling structure are constructed simultaneously.

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