JP6151528B2 - Air conditioning unit construction method - Google Patents

Description

The present invention relates to a construction method using an air conditioning unit installed in a ceiling space of a building.

  Conventionally, for example, air conditioning equipment is installed in a ceiling space of a building. Regarding the installation of air-conditioning equipment, prefabricated in the construction work of the building, the air-conditioning unit in which equipment members such as pipes and ducts are assembled in units that can be carried into the vehicle in advance at the factory in response to the short construction period. Construction method is carried out. In addition, a “floor unit method” is also known, in which air conditioning equipment is assembled to a floor material such as a deck plate constituting a building and lifted. According to these, in addition to laying pipes and ducts other than the prefabricated parts, members that are integrated with a part of the building frame are manufactured at the factory, so it can contribute to shortening the construction period and the construction site There are advantages such as that there are few restrictions on the work space and that it contributes to safety measures by reducing the number of workers working on site.

  Regarding the installation of such air-conditioning equipment, as a related prior patent, Patent Document 1 discloses that a floor unit is stored on a floor under construction at a site where the site is small, and at the same time the upper beam is built. A method of assembling a floor unit is disclosed. Patent Document 2 discloses a construction method in which a scaffold unit is suspended from a large beam and a small beam that is not bridged is attached between the large beams. On the other hand, Patent Document 3 discloses that an air conditioning equipment unit manufactured in advance in a factory is transported to a construction site and attached to a ceiling.

JP 2012-12836 A JP 2009-84920 A JP-A-6-147622

  Buildings have a need to be widely used for their original purposes of using space such as office, work, residence, and production. Therefore, it is conceivable to form a ceiling-suspended air conditioning machine room in which equipment such as air conditioning equipment is assembled near the ceiling. On the other hand, in factories, warehouses / logistics facilities, sports / leisure facilities, religious facilities, etc., it is not uncommon for the ceiling to be formed high depending on the process and activities inside the building. Then, in order to realize a “ceiling-suspended air-conditioning machine room”, it is necessary to reduce the danger of a worker falling or the like at a high place as much as possible.

  In order to realize a ceiling-mounted air conditioning machine room, air-conditioning equipment and ducts are assembled to steel beams one by one. The work efficiency is poor due to the lifting and lowering of materials. Even with a foothold, careful work is required when working at heights.

  Moreover, as shown in Patent Document 3, it is possible to reduce the work at a high place by unitization and collective lifting, but such construction has the following difficulties. That is, it is difficult for a unit in which a floor material is assembled to a heavy object such as an air conditioner to be loaded on a vehicle and carried to the site. Moreover, when a unit is formed at a construction site, workers and processes are congested, and there is a concern about the progress of work.

  Here, if the air conditioner is assembled under the floor material such as a deck plate, the subsequent operation becomes simple. However, there are restrictions on the assembly procedure. If the frame material for fixing the flooring and the air conditioner is first framed, it will be a rain countermeasure for equipment members such as an air conditioner, but this will restrict the installation of the air conditioner. In addition, when the air conditioner is assembled to the minimum supporting steel material first, construction of piping, the supporting steel material, a floor material and a member suspended under the floor material follows, and it takes time until lifting. In addition, the floor unit may be lifted with a small beam, but it is necessary to take fire prevention measures such as fire-resistant coating on the steel material and the penetration part, and work between members during unitization Working in space is less efficient. Moreover, the floor unit provided with the air conditioner is heavy, and there is a concern about damage to the unit before and after lifting.

This invention is made | formed in view of this point, and it aims at providing the construction method of the air conditioning unit which can reduce the burden required for the operation | work of unitization at a construction site, and an aerial work as much as possible.

In order to achieve the above object, according to the present invention, an air conditioning unit installed in a ceiling space of a building, comprising: a flooring unit unit; and a gantry unit unit united below the flooring unit unit. The flooring unit unit includes a flooring and a small beam attached to the lower surface of the flooring, and the gantry unit unit includes a base member on which an air conditioner is placed, and an upper surface of the base member A construction method using an air conditioning unit in which the flooring unit unit and the gantry unit unit are united by joining the lower end of the beam and the upper end of the column member. And after mounting an air-conditioning device on the gantry unit part, the flooring unit part and the gantry unit part are combined to form the air-conditioning unit, and the air-conditioning unit is lifted, Attach to And wherein, the construction method of the air conditioning unit is provided.

  In this construction method, before combining the flooring unit unit and the gantry unit unit, or after combining the flooring unit unit and the gantry unit unit, ducts or piping to the air conditioning equipment mounted on the gantry unit unit May be attached. Further, after the floor material unit portion and the gantry unit portion are combined, before the air conditioning unit is lifted, a floor material deflection preventing member may be attached to an edge of the air conditioning unit. Further, the air conditioning unit can be attached to the large beam of the building by joining the small beam of the flooring unit unit to the large beam of the building. In addition, a duct / pipe unit having no air-conditioning equipment is provided, and the air-conditioning unit and the duct / pipe unit are attached to a large beam of a building, and the duct or pipe is connected between the air-conditioning unit and the duct / pipe unit. You may do it.

  According to the present invention, since the air conditioning unit is divided into the flooring unit unit and the gantry unit unit, for example, the flooring unit unit and the gantry unit unit are produced in a factory or the like, loaded on the vehicle, and carried to the construction site. It is also possible. In this case, at the construction site, the air conditioning unit can be easily assembled by placing the air conditioning device on the gantry unit and combining the flooring unit and the gantry unit.

  In addition, air conditioning equipment can be installed in the ceiling space of a building by lifting the united air conditioning unit and attaching it to a building girder. For this reason, the burden required for the unitization work and the high place work at the construction site can be reduced.

It is a side view of a flooring unit part. It is a side view of a gantry unit part. It is a side view of the air-conditioning unit concerning this Embodiment. It is a side view of the air-conditioning unit concerning this Embodiment seen from the direction orthogonal to FIG. It is explanatory drawing of the state which fixes piping etc. using the shelf provided in the support | pillar member. It is explanatory drawing of the state which attaches an air-conditioning unit to the big beam of a building. It is explanatory drawing of the state in which connection, such as a duct and piping, is performed. It is explanatory drawing which shows the example of installation of the air conditioning unit and the vertical shaft in the arbitrary floors of a building.

  Embodiments of the present invention will be described below. The air conditioning unit 1 according to the embodiment of the present invention is formed by combining the flooring unit unit 2 and the gantry unit unit 3. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  As shown in FIG. 1, the flooring unit 2 includes a flooring 10 and a beam 11 attached to the lower surface of the flooring 10. For example, a deck plate is used as the flooring 10. For the small beam 11, for example, H steel is used.

  When manufacturing the flooring unit 2, as shown in FIG. 1, for example, a beam support 13 is horizontally installed on a base 12 on which mortar is placed. Then, the small beams 11 are arranged in parallel at an appropriate interval on the upper surface of the small beam receiver 13, and the floor material 10 is placed on the small beams 11. The base 12 is formed so that both ends of the flooring 10 have the same height. Moreover, both ends of the flooring 10 are supported by the end receivers 15 so that the flooring 10 is horizontal. When placing the flooring 10 on the small beam 11, the height can be adjusted at the time of work if two jacks are used, but in this embodiment, the base 12 is formed of mortar in order to ensure horizontality. doing.

  The lower surface of the flooring 10 and the upper surface of the beam 11 are welded, and the beam 11 is attached to the lower surface of the flooring 10. A plurality of small beams 11 are arranged in parallel in a direction orthogonal to the small beam receiver 13 in advance, the flooring 10 is placed on the small beams 11, and the contacts of both are welded.

  The length of the beam 11 (the length of the beam 11 in the direction orthogonal to the paper surface in FIG. 1) is the width of the floor material 10 (the width of the floor material 10 in the direction orthogonal to the paper surface in FIG. 1). Is set longer than. As understood from FIG. 4, both ends of the beam 11 attached to the lower surface of the flooring 10 (both ends in the direction orthogonal to the paper surface in FIG. 1) protrude further outward from both ends of the flooring 10. Yes.

  An anchor 16 may be appropriately attached to the flooring 10. In this case, the anchor 16 can be attached by drilling from above the flooring 10 and driving the anchor 16. As the anchor 16 used here, for example, a product available on the market as a trade name “rocket sert” may be used. "Rocket Sert" has a structure in which metal fittings are inserted from above the rubber packing, and can prevent the rainwater from flowing down during rainy weather. If all the screws are screwed into the anchor 16, it is convenient because it can be used for hanging the duct 31 and the pipe 32 in the operation described later.

  In addition, after the anchor 16 is cast, a fireproof material mainly composed of rock wool granular cotton and cement is sprayed on or attached to the side surface of the beam 11 or the back surface of the floor material 10 to provide a fireproof coating. And good. In addition, when performing fireproof coating, for example, the floor material 10 can be lifted and lowered according to the height of the fireproof object.

  Further, the gantry unit unit 3 is manufactured in parallel with the manufacturing of the flooring unit unit 2 or at an appropriate timing different from the manufacturing of the flooring unit unit 2. As shown in FIG. 2, the gantry unit 3 includes a base member 20 on which the air conditioner 30 is placed and a plurality of support members 21 that are vertically attached to the upper surface of the base member 20. For example, nine support members 21 are attached to the base member 20 so as to surround the air conditioner 30 placed on the gantry unit portion 3. In this embodiment, when these support members 21 are connected horizontally with a line, they are arranged so that two types of quadrangle such as a long rectangle and a rectangle close to a square (space for air conditioning equipment) are in contact with each other.

  The base member 20 is a framework in which a steel material such as H-steel is passed vertically and horizontally. In addition, a steel material such as H steel is also used for the support member 21 that is vertically attached to the upper surface of the base member 20. The steel materials used for the base member 20 and the column member 21 are galvanized and have corrosion resistance. Thus, by producing the flooring unit part 2 separately from the gantry unit part 3, there is an advantage that the degree of freedom of work is high.

  As shown in FIGS. 3 and 4, the air conditioning unit 1 according to the embodiment of the present invention arranges the flooring unit unit 2 above the gantry unit unit 3 and combines them according to the following procedure. Is formed.

  First, before moving the flooring unit unit 2 above the gantry unit unit 3, the air conditioner 30 is hung from above the gantry unit unit 3, and on the base member 20 of the gantry unit unit 3. The air conditioner 30 is placed between 21 and installed. The air conditioner 30 placed here supplies conditioned air to the air-conditioned space. For example, an air handling unit is a main placement member. For example, the air handling unit may exceed 100 kg in weight, and may exceed 1 ton if it is a direct expansion type. The air conditioner 30 is mounted on the base member 20 using a crane or a lifting machine such as a lift, and bolts 30 such as M16 are provided through holes formed in the base member 20 and bolt holes of the base plate of the air conditioner 30. Fixed using '. In addition, you may fix the air conditioning equipment 30 on the base member 20 via a vibration isolator as needed.

  The air conditioner 30 is connected to a duct 31 for supplying conditioned air produced by the air conditioner 30 into the building, and a pipe 32 for supplying a refrigerant to the air conditioner 30 and attached devices. Before the floor unit unit 2 is moved above the gantry unit unit 3, the air conditioner 30 is installed on the gantry unit unit 3, so that the upper part of the gantry unit unit 3 is still open. Thus, it is possible to perform the installation work of the air conditioner 30. In this case, the duct 31 and the pipe 32 can be suspended together with the air conditioner 30 and placed on the base member 20 with the duct 31 and the pipe 32 connected to the air conditioner 30 in advance. Here, the air conditioner 30 is fixed by, for example, fixing the bottom frame of the air handling unit and H steel as the base member 20 with bolts 30 'such as M16.

  Here, when installing the pipe 32 connected to the air conditioner 30 or the accessory equipment, as shown in FIG. 5, a shelf 22 is appropriately provided on the column member 21, and the pipe 32 is used by using the shelf 22. And attached devices can be fixed. Further, the pipe 32 and attached devices may be directly fixed to the support member 21. In the gantry unit section 3, by using the support members 21 and the shelves 22 in this way, there is an advantage that the pipe 32 connected to the air conditioner 30 and the attached devices can be installed in an organized state.

  Note that if the ends of the duct 31 and the pipe 32 connected to the air conditioner 30 remain open, there is a concern that foreign matter or dust may enter the duct 31 or the pipe 32. For this reason, a cover 33 such as a curing sheet, a film, or an air cap may be appropriately attached and closed at the ends of the duct 31 and the pipe 32 connected to the air conditioner 30. Further, the ends of the duct 31 and the pipe 32 can be protected by the cover 33. Reference numeral 32 ′ denotes a drain pipe, which extends outward from the base plate delivered to the base member 20 through the support member, and is clipped to the end of the column member 21 with a downward gradient.

  Next, the floor material unit 2 is lifted by a crane (not shown), the floor material unit 2 is moved above the gantry unit 3, and the floor material unit 2 is placed on the upper end of the column member 21 of the gantry unit 3. The floor material unit 2 is placed on the gantry unit 3 such that the lower end of the two small beams 11 is placed thereon. In addition, it can position so that the lower end of the beam 11 of the flooring unit part 2 may be put on the upper end of the support | pillar member part 21 by moving the flooring unit part 2 horizontally in the state lifted with the crane. Thus, in a state where the lower end of the small beam 11 and the upper end of the column member 21 are abutted, both are welded and joined. Thus, the air conditioning unit 1 is formed by combining the flooring unit unit 2 and the gantry unit unit 3.

  In addition, when the flooring unit unit 2 and the gantry unit unit 3 are combined with each other in this way, it is preferable to attach the deflection preventing member 35 of the flooring 10 to the edge of the air conditioning unit 1. As the deflection preventing member 35, a steel frame such as a steel pipe pipe or a shaped steel can be used. The deflection preventing member 35 may be disposed vertically between the floor material 10 and the base member 20, or may be disposed obliquely so as to be a brace. By attaching the bending prevention member 35 to the edge of the air conditioning unit 1, the deformation of the entire air conditioning unit 1 can be reliably prevented.

  In addition, after the floor unit unit 2 and the gantry unit unit 3 are combined to form the air conditioning unit 1, the duct 31, the pipe 32, and the like may be connected to the air conditioning device 30. If the duct 31 and the pipe 32 are connected after the air conditioning unit 1 is formed in this way, the flooring 10 of the flooring unit unit 2 becomes a roof, so that the operation can be easily performed even in rainy weather. Moreover, when connecting the duct 31 and the piping 32 etc., the duct 31 and the piping 32 can also be suspended and fixed using the anchor 16 provided in the flooring 10. These operations and the above-mentioned fireproofing operation of the through-hole of the anchor 16 can be performed in the open space above the gantry unit portion 3 and can be said to have a high degree of freedom. Further, the duct 31 and the pipe 32 may be appropriately fixed to the support member 21 using a U band or the like. In addition, when connecting the duct 31, piping 32, etc. after uniting of the air-conditioning unit 1 in this way, it is good to attach the bending prevention member 35 after those connection work is complete | finished.

  Next, the formed air conditioning unit 1 is lifted and lifted above the building 5, and the air conditioning unit 1 is attached to the girder 40 of the building 5 as shown in FIG. The weight of the air conditioning unit 1 is about 5 tons for equipment members, about 10 tons for steel frames and the like, and about 15 tons for jigs and the like, totaling about 30 tons. This is lifted by a crawler crane. The size of the air-conditioning unit 1 is, for example, 12 m × 9 m (height 3.2 m), and is hung from the upper beam 40 of the building 5 by lifting from the four corners and lifting with a normal sling. .

  Then, as shown in FIG. 7, in the air conditioning unit 1, both ends of the small beam 11 protruding outward from both ends of the flooring 10 are moved to the inside of the large beam 40 of the building 5, and the small beam 11 is moved from the upper end of the large beam 40. Also, the air conditioning unit 1 is joined to the building 5 with bolts using a gusset plate and a plate hole (not shown) provided on both of them. Thereby, it becomes possible to attach the air conditioning unit 1 to the building 5 and to lay the flooring 10 at the same time.

  After the air conditioning units 1 are installed, the ducts 31 and the pipes 32 are connected between the air conditioning units 1 or between the vertical shaft 41 provided in the building 5 and the air conditioning unit 1. For example, as shown in FIG. 8, a considerable number of air conditioning units 1 are installed on an arbitrary floor of the building 5 according to the scale of the building 5. Further, in FIG. 8, reference numeral 1 ′ denotes a duct / pipe unit that does not have the air conditioner 30. In the building 5, in addition to the air conditioner unit 1 including the air conditioner 30, the air conditioner 30 is not included. A duct / pipe unit 1 ′ including a duct and a pipe is appropriately arranged. On each floor of the building 5, the air conditioning unit 1 and the duct / pipe unit drain pipe 1 ′ are attached to the large beam 40 by the above-described method and installed in an appropriate arrangement. The duct 31 and the pipe 32 are connected between the vertical shafts 41, and electrical wiring work is performed. In addition, when connecting the duct 31, the piping 32, etc. in this way, the cover 33 is removed. For example, the air supply from the air conditioner 30 is conveyed by the duct 31 to the outlets arranged at appropriate intervals so that the air can be distributed and supplied in the building 5. A path for this purpose is established in the ceiling space in the building 5 in which the air conditioning unit 1 is installed. Similarly, in the ceiling space in the building 5, a chiller, a cold water pipe, a refrigerant pipe, and the like are laid and appropriately connected to a vertical pipe 41 accommodated in the vertical shaft 41. The ducts 31 and the pipes 32 are appropriately installed and fixed in the ceiling space in the building 5 using the anchor 16, the column member 21, the shelf 22, the base member 20, and the like provided in the air conditioning unit 1. The same applies to the duct 31 (pipe 32) unit. In addition, between each air conditioning unit 1 and the duct 31 (pipe 32) unit, between the air conditioning units 1 or between the air conditioning unit 1 and the vertical shaft 41, for example, each air conditioning unit 1 is opened so as to have a clearance of about 1 m. If it arrange | positions, the connection operation | work of the duct 31, the piping 32, etc. can be performed using the clearance gap, and mutual between the air conditioning units 1 or between the air conditioning unit 1 and the vertical shaft 41 is possible by the clearance. Position adjustment (error absorption) of the duct 31 and the piping 32 can be easily performed. If the building 5 has a deck plate top structure without a ceiling board, the duct 31 can be fixed to the anchor 16 or the column member 21 and the conditioned air can be blown out through a nozzle attached to the tip.

  As described above, since the air conditioning unit 1 can be divided into the floor material unit 2 and the gantry unit 3, for example, the floor material unit 2 and the gantry unit 3 are produced in a factory and loaded on the vehicle. It is also possible to carry it to the construction site. In the construction site, the air conditioning unit 30 can be easily assembled by placing the air conditioning device 30 on the gantry unit 1 and combining the flooring unit 2 and the gantry unit 3. In addition, by lifting the air conditioning unit 1 with a crawler crane or the like and attaching it to the girder 40 of the building 5, air conditioning equipment can be installed in the ceiling space of the building 5. For this reason, the burden required for the unitization work and the high place work at the construction site can be reduced. In addition, in the construction site, the flooring unit unit 2 and the gantry unit unit 3 can also be stocked in a divided state.

  As mentioned above, although an example of the preferred embodiment of this invention was demonstrated, this invention is not limited to the form shown here. For example, in addition to the air conditioner 30 and the like, the air conditioning unit 1 can be provided with members and facilities other than the air conditioning function, such as a fire extinguishing pipe, a sanitary pipe, a handrail, a maintenance passage, and electrical wiring. Moreover, heat insulation processing, instrumentation work, and fireproof coating processing of the duct 31 and the piping 32 can be performed.

  The present invention is useful for building an air conditioning facility in a building.

DESCRIPTION OF SYMBOLS 1 Air conditioning unit 2 Floor material unit part 3 Mounting unit part 5 Building 10 Floor material 10
DESCRIPTION OF SYMBOLS 11 Beam 12 Base 13 Beam receiver 15 End receiver 16 Anchor 20 Base member 21 Strut member 22 Shelf 30 Air-conditioning equipment 31 Duct 32 Piping 33 Cover 35 Deflection prevention member 40 Large beam 41 Vertical shaft

Claims (5)

An air conditioning unit installed in the ceiling space of a building,
A flooring unit unit, and a gantry unit unit united below the flooring unit unit,
The flooring unit has a flooring and a small beam attached to the lower surface of the flooring,
The gantry unit portion has a base member on which an air conditioner is placed, and a support member attached to the upper surface of the base member,
By joining the lower end of the beam and the upper end of the support member, it is a construction method using an air conditioning unit in which the floor unit unit and the gantry unit unit are combined ,
After placing the air conditioning equipment on the gantry unit part, the floor unit unit and the gantry unit part are combined to form the air conditioning unit,
A method for constructing an air conditioning unit, characterized in that the air conditioning unit is lifted and attached to a girder of a building.   Before combining the flooring unit unit and the gantry unit unit, or after combining the flooring unit unit and the gantry unit unit, a duct or piping is attached to the air conditioner mounted on the gantry unit unit. The construction method of the air conditioning unit according to claim 1, characterized in that it is a feature.   The floor material deflection preventing member is attached to an edge of the air conditioning unit after the floor material unit portion and the gantry unit portion are combined and before the air conditioning unit is lifted. The construction method of the air-conditioning unit of 2.   The construction method of an air conditioning unit according to any one of claims 1 to 3, wherein the air conditioning unit is attached to the large beam of the building by joining the small beam of the flooring unit unit to the large beam of the building. .   Equipped with ducts and piping units that do not have air conditioning equipment,
  Attach the air conditioning unit and the duct / pipe unit to the girder of the building,
  The construction method for an air conditioning unit according to any one of claims 1 to 4, wherein a duct or a pipe is connected between the air conditioning unit and the duct / pipe unit.

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