A method for constructing a suspended ceiling in a large space by replacing a counter support or a transfer layer

Abstract

The present invention relates to a method for constructing a high-space ceiling that replaces an anti-support or conversion layer, including: step one, calculation of the load value of the counterweight layer, calculation of the uniformly distributed load of the suspended top layer and the load of the counterweight layer according to the standard value of the wind load at the project location and the design drawings; step two, designing the hanger and the counterweight layer frame according to the load of the counterweight layer; step three, modular processing of the counterweight layer, processing the corresponding counterweight layer module in the factory, the module size is processed according to the integer multiple of the preset spacing between the hangers, and the top and lower surfaces of the module are provided with bolt holes according to the preset spacing of the hangers; step four, the top of the counterweight layer, the hanger is fixed on the structural top plate with expansion bolts according to the preset spacing, the hanger passes through the bolt holes on the upper surface of the counterweight module and is fixed with nuts, and the bolt holes on the lower surface are connected to the ceiling keel; step five, construction of the ceiling surface layer, connecting the paper-faced gypsum board to the ceiling keel skeleton, and completing the construction of the entire suspended layer. The construction method of the present invention saves materials, and the modular processing construction efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of high-large space suspended ceiling construction, in particular to a high-large space suspended ceiling construction method that replaces a counter-support or a conversion layer. Background Art

[0002] The technologies related to counter-supports and transition layers in tall and large spaces that have been made public mainly focus on increasing the rigidity of the hangers in different ways, such as how to set up counter-supports or transition layers more conveniently and quickly; and changing welding to mechanical connections to speed up construction and reduce welding operations; the fixed nodes of the transition layer, the method of measuring and laying out, and through detailed calculations, it is clear when to set up what type of counter-supports. Generally speaking, the rigidity of the ceiling hanger decreases after the length exceeds 1.5 meters, and the rigidity decreases more after exceeding 2.5 meters. Therefore, the specification requires the installation of counter-supports for ceilings exceeding 1.5 meters and steel frame transition layers for ceilings exceeding 2.5 meters to increase rigidity, offset wind loads or reverse loads during construction, and thus reduce the problem of deformation and cracking of the ceiling; however, as the height of the space increases, counter-supports and transition layers will cause a lot of material waste, especially in tall spaces when the length of the hangers exceeds 5 meters. Summary of the invention

[0003] In view of the shortcomings of the prior art, the object of the present invention is to provide a method for constructing a ceiling in a large space that replaces a counter support or a conversion layer, comprising:

[0004] Step 1: Calculate the load value of the counterweight layer. Calculate the uniform load of the suspended top layer according to the standard value of the wind load at the project location and the design drawings, and then calculate the load of the counterweight layer;

[0005] Step 2: Design the hanger rod and the counterweight layer frame according to the load of the counterweight layer, calculate the preset spacing between the hangers according to the load value, and select matching angle steel or channel steel according to the load value to form the counterweight layer frame;

[0006] Step 3: Modular processing of the counterweight layer: the corresponding counterweight layer modules are processed in the factory. The module size is processed according to the integer multiple of the preset spacing between the suspension rods, and bolt holes are reserved on the top and bottom surfaces of the modules according to the preset spacing between the suspension rods;

[0007] Step 4: The counterweight layer is placed on top. The hangers are fixed to the top plate of the structure with expansion bolts according to the preset spacing. The hangers pass through the bolt holes on the upper surface of the counterweight module and are fixed with nuts. The bolt holes on the lower surface are connected to the ceiling keel.

[0008] Step 5: Construction of the suspended ceiling surface layer: connect the gypsum board to the suspended ceiling keel frame to complete the construction of the entire suspended layer.

[0009] Furthermore, the calculation method of the counterweight layer load value in step 1 includes the following steps: step 1, according to the standard value of wind load at the project location, combined with the requirements of structural calculation specifications, calculate the average size of the reverse wind load on the ceiling panel, set the value as f; step 2, according to the material specifications of the ceiling surface keel layer given in the design drawings, calculate the uniform load of the suspended top layer, set the value as g; step 3, calculate the required load of the counterweight layer, set the value as q, then q = fg. It should be understood that the wind load is the upward force of the wind blowing the ceiling from below; the uniform load of the suspended top layer is the downward force of the weight carried on it.

[0010] Furthermore, in step three, when the counterweight module is processed and manufactured, bolt connection plates are provided at both ends of the counterweight module, and bolt holes are provided on the plates for bolting two adjacent counterweight modules together.

[0011] Furthermore, in step three, the size of the counterweight module is equal to the preset distance between the suspension rods.

[0012] Furthermore, in step four, the ceiling keel includes a main keel and a secondary keel, the main keel is connected to the counterweight module, and the secondary keel is connected to the main keel.

[0013] Furthermore, the main keel and the secondary keel are both grid structures arranged vertically and horizontally.

[0014] Furthermore, the gypsum board is connected to the secondary keel.

[0015] Furthermore, the preset distance between the main keels is three times the preset distance between the secondary keels.

[0016] Furthermore, the main keel bolt hanger is connected to the counterweight module.

[0017] Furthermore, the gypsum board is fixed on the secondary keel with screws.

[0018] To sum up, the beneficial technical effects of the construction method of the present invention are as follows: in the construction of suspended ceilings, after the length of the hanger exceeds a certain range, the counterweight layer can be used to replace the counter-support or conversion layer. The longer the hanger length, the more convenient the construction and the higher the cost savings. Above the counterweight layer inside the suspended ceiling, there are only vertical hangers, and there are no criss-crossing horizontal supports, which reduces the impact on the layout of lines and equipment for other professional construction in the suspended ceiling space. The large-area counterweight layer (except for the local edges) is factory-processed with modular unit blocks and mechanically connected on site, which reduces welding and anti-corrosion operations, improves project quality, and speeds up project progress. In areas with the same wind load, the spacing between hangers and the specifications of the counterweight layer are unified in the same type of projects, and they are processed in large quantities in factories to improve project quality and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment mode and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the method steps of the present invention;

[0021] Figure 2 It is a schematic diagram of the ceiling structure in the present invention;

[0022] In the figure, 1, structural top plate, 2, hanging rod, 3, counterweight layer, 4, ceiling keel, 5, bolt hanging parts, 6, paper gypsum board;

[0023] 31. Counterweight module, 32. Bolt hole, 33. Bolt connecting plate, 41. Main keel, 42. Secondary keel, 43. Keel connecting card. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0025] Reference Figure 1-2 As shown, a method for constructing a high-space suspended ceiling that replaces a counter-support or conversion layer disclosed in the present invention comprises: step one, calculating the load value of the counterweight layer, calculating the uniformly distributed load of the suspended layer layer according to the standard value of the wind load at the project site and the design drawings, and then calculating the load of the counterweight layer; step two, designing the hangers and the counterweight layer frame according to the load of the counterweight layer, calculating the preset spacing between the hangers according to the load value, and selecting matching angle steel or channel steel according to the load value to form the counterweight layer frame; step three, modular processing of the counterweight layer, processing the corresponding counterweight layer module in the factory, the module size is processed according to the integer multiple of the preset spacing between the hangers, and the top and bottom surfaces of the module are provided with bolt holes according to the preset spacing of the hangers; step four, the top of the counterweight layer, the hangers are fixed to the structural top plate with expansion bolts according to the preset spacing, the hangers pass through the bolt holes on the upper surface of the counterweight module and are fixed with nuts, and the bolt holes on the lower surface are connected to the ceiling keel; step five, construction of the ceiling surface layer, connecting the paper-faced gypsum board to the ceiling keel skeleton, and completing the construction of the entire suspended layer.

[0026] The specific implementation method of the embodiment disclosed in the present invention is as follows Figure 1-2shown.

[0027] Step 1: Calculate the load value of the counterweight layer. Calculate the uniformly distributed load of the suspended top layer according to the standard value of the wind load at the project location and the design drawings, and then calculate the load of the counterweight layer. According to the standard value of the wind load at the project location and the requirements of the structural calculation specifications, calculate the uniform size of the reverse wind load on the ceiling panel, and set the value as f; calculate the uniformly distributed load of the suspended top layer according to the material specifications of the suspended ceiling surface keel layer given in the design drawings, and set the value as g; calculate the required load of the counterweight layer, and set the value as q, then q=fg. It should be understood that the wind load is the upward force of the wind blowing the ceiling from below; the uniformly distributed load of the suspended top layer is the downward force of the weight carried on it.

[0028] Step 2: Design the hangers and the counterweight layer frame according to the load of the counterweight layer, calculate the preset spacing between the hangers according to the load value, and select matching angle steels or channel steels according to the load value to form the counterweight layer frame.

[0029] Step 3: Modular processing of the counterweight layer. The corresponding counterweight layer modules are processed in the factory. The module size is processed according to the integer multiple of the preset spacing between the suspension rods. Bolt holes are reserved on the top and bottom surfaces of the modules according to the preset spacing between the suspension rods. In this embodiment, the size of the counterweight module used is equal to the preset spacing between the suspension rods. When the counterweight module is processed and manufactured, bolt connection plates are set at both ends of the counterweight module, and bolt holes are set on the bolt connection plates to bolt two adjacent counterweight modules together.

[0030] Step 4: Top the weight layer, refer to Figure 2 As shown, the hanger 2 is fixed to the structural top plate 1 (or the building top wall) with expansion bolts according to the preset spacing. The hanger 2 passes through the bolt holes 32 on the upper surface of the counterweight module 31 and is fixed with nuts to complete the fixation of the counterweight module 31. At the same time, the bolt connection plates 33 are connected by bolts to connect two adjacent counterweight modules together to form a counterweight layer 3. The bolt holes 32 on the lower surface of the counterweight module 31 are connected to the ceiling keel 4, and the main keel 41 is connected to the hanger 2 through the bolt hanger 5 to form a grid structure arranged vertically and horizontally. The secondary keel 42 is connected to the main keel 41 through the keel connection card 43. The grid structure is arranged vertically and horizontally, and the preset distance between the main keels 41 is three times the preset distance between the secondary keels 42.

[0031] Step 5: Construction of the suspended ceiling surface layer: connect the gypsum board 6 to the suspended ceiling keel 4 frame, connect the gypsum board 6 to the secondary keel 42, and complete the construction of the entire suspended layer.

[0032] The beneficial technical effects of the construction method disclosed in this embodiment are as follows: during suspended ceiling construction, when the length of the hanger exceeds a certain range, the counterweight layer can be used to replace the counter-support or conversion layer. The longer the hanger is, the more convenient the construction is and the higher the cost savings are. Above the counterweight layer inside the suspended ceiling, there are only vertical hangers, and there are no criss-crossing horizontal supports, which reduces the impact on the layout of lines and equipment for other professional construction in the suspended ceiling space. The large-area counterweight layer (except for the local edges) is factory-processed using modular unit blocks and mechanically connected on site, which reduces welding and anti-corrosion operations, improves project quality, and speeds up project progress. In areas with the same wind load, the spacing between hangers and the specifications of the counterweight layer are unified in the same type of projects, and large-scale factory processing is carried out to improve project quality and reduce costs.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0034] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A method for constructing a ceiling in a large space replacing a counter support or a conversion layer, characterized in that: include: Step 1: Calculate the load value of the counterweight layer. Calculate the uniform load of the suspended top layer according to the standard value of the wind load at the project location and the design drawings, and then calculate the load of the counterweight layer; Step 2: Design the hanger rod and the counterweight layer frame according to the load of the counterweight layer, calculate the preset spacing between the hangers according to the load value, and select matching angle steel or channel steel according to the load value to form the counterweight layer frame; Step 3: Modular processing of the counterweight layer: the corresponding counterweight layer modules are processed in the factory. The module size is processed according to the integer multiple of the preset spacing between the suspension rods, and bolt holes are reserved on the top and bottom surfaces of the modules according to the preset spacing between the suspension rods; Step 4: The counterweight layer is placed on top. The hangers are fixed to the top plate of the structure with expansion bolts according to the preset spacing. The hangers pass through the bolt holes on the upper surface of the counterweight module and are fixed with nuts. The bolt holes on the lower surface are connected to the ceiling keel. Step 5: Construction of the ceiling surface layer: connect the gypsum board on the ceiling keel frame to complete the construction of the entire ceiling layer; The method for calculating the load value of the counterweight layer in step 1 comprises the following steps: Step (i) Calculate the average value of the reverse wind load on the ceiling panel based on the standard value of the wind load at the project location and the requirements of the structural calculation specification, and set the value as f; Step (ii), calculate the uniformly distributed load of the suspended top layer according to the material specifications of the suspended ceiling surface keel layer given in the design drawing, and set the value to g; Step (iii): Calculate the required load of the counterweight layer and set the value as q, then q = fg.

2. The method for constructing a large space ceiling replacing a counter support or a conversion layer according to claim 1, characterized in that: In the step three, when the counterweight module is processed and manufactured, bolt connection plates are provided at both ends of the counterweight module, and bolt holes are provided on the plates for bolting two adjacent counterweight modules together.

3. The method for constructing a large space ceiling replacing a counter support or a conversion layer according to claim 1, characterized in that: In the step three, the size of the counterweight module is equal to the preset distance between the suspension rods.

4. The method for constructing a large space ceiling replacing a counter support or a conversion layer according to claim 1, characterized in that: In the step 4, the ceiling keel includes a main keel and a secondary keel, the main keel is connected to the counterweight module, and the secondary keel is connected to the main keel.

5. The method for constructing a large space ceiling replacing a counter support or a conversion layer according to claim 4, characterized in that: The main keel and the secondary keel are both grid structures arranged vertically and horizontally.

6. The method for constructing a large space ceiling replacing a counter support or a conversion layer according to claim 4, characterized in that: The gypsum board is connected to the secondary keel.

7. The method for constructing a large space ceiling replacing a counter support or a conversion layer according to claim 5, characterized in that: The preset distance between the main keels is three times the preset distance between the secondary keels.

8. The method for constructing a large space ceiling replacing a counter support or a conversion layer according to claim 4, characterized in that: The main keel bolt hanger is connected to the counterweight module.

9. The method for constructing a ceiling in a large space replacing a counter support or a conversion layer according to claim 6, characterized in that: The paper-faced gypsum board is fixed on the secondary keel with screws.

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