Prefabricated building, method of constructing prefabricated building and building

Abstract

Provided is a prefabricated building 1 constructed by combining a previously manufactured wall panel and roof panel on a mounting surface. This prefabricated building 1 includes an outer wall portion 20 which is formed by wall units 2 A, 2 B in which two wall panels 21, 21 are flexibly connected, a roof portion 3 formed by a plurality of roof panels 31 and an upper end side supporting portion 5 having a jig 51 which places an upper end of the roof panel and an extension bar 52 which transfers a load to the mounting surface, the jig 51 and the extension bar 52 being separatably connected, and the upper end side supporting portion 5 being set up in a portion surrounded by the outer wall portion 20 to project above an upper end face of the outer wall portion 20.

1 . A prefabricated building which is constructed by combining a previously manufactured wall panel and roof panel on a mounting surface, comprising:
 an outer edge supporting portion which supports a lower end of a roof, the outer edge supporting portion being formed by a wall unit in which at least two wall panels are flexibly coupled and a supporting unit which is set up in a position facing the wall unit, or being formed by a wall unit in which three or more wall panels are flexibly connected;   a roof portion formed by a plurality of roof panels; and   an upper end side supporting portion having a jig which places an upper end of the roof panel and a supporting body which transfers a load to the mounting surface, the jig and the supporting body being separatably connected, and the upper end side supporting portion being set up in a portion surrounded by the outer edge supporting portion to project above an upper end face of the outer edge supporting portion.   
     
     
         2 . The prefabricated building according to  claim 1 , wherein the supporting unit is a wall unit in which at least two wall panels are flexibly coupled. 
     
     
         3 . The prefabricated building according to  claim 1 , wherein the supporting unit is a beam-column unit including a column member and a beam member. 
     
     
         4 . The prefabricated building according to  claim 1 , wherein in the wall unit in which the three or more wall panels are flexibly connected, all of side end faces of the wall panels are flexibly connected to side end faces of neighboring wall panels. 
     
     
         5 . The prefabricated building according to  claim 1 , wherein the wall panel includes an inner wall board via a wooden frame bridged on an inner face side of a steel shell member. 
     
     
         6 . The prefabricated building according to  claim 1 , wherein
 the outer edge supporting portion is formed in a plane polygonal shape, and   the roof panel is formed in a trapezoidal shape in which a length of an upper end is shorter than that of a lower end.   
     
     
         7 . The prefabricated building according to  claim 6 , wherein the jig includes a plane polygonal shape in which a length of one side is a length of an upper end of the roof panel, and is configured to place a lower end of the roof panel on an upper end face of the outer edge supporting portion and to support the upper end of the roof panel by one side of the Jig. 
     
     
         8 . The prefabricated building according to  claim 1 , wherein the roof panel includes a flexible bend portion in a portion which is a ridge of the roof portion. 
     
     
         9 . A method of constructing a prefabricated building by combining a previously manufactured wall panel and roof panel on a mounting surface, comprising:
 a step of fixing in a predetermined position of the mounting surface one wall panel of a wall unit in which at least two wall panels are flexibly coupled;   a step of fixing in a predetermined position the other wall panel by moving the other wall panel according to the fixed wall panel;   a step of completing an outer edge supporting portion which supports an lower end of a roof by setting up another wall unit or a supporting unit when the outer edge supporting portion which supports a roof panel is not completed only by the wall unit;   a step of setting up an upper end side supporting portion in which a jig which places an upper end of the roof panel and a supporting body which transfers a load to the mounting surface are separatably connected inside a portion surrounded by the outer edge supporting portion, so as to project above an upper end face of the outer edge supporting portion;   a step of placing a lower end of the roof panel onto the upper end face of the outer edge supporting portion, and supporting the upper end of the roof panel by one side of the jig; and   a step of removing the supporting body from the jig.   
     
     
         10 . A building constructed by connecting a plurality of prefabricated buildings set forth in  claim 1 . 
     
     
         11 . The building according to  claim 10 , wherein the supporting unit is placed over the neighboring prefabricated buildings. 
     
     
         12 . The building according to  claim 11 , wherein the supporting unit is an inner wall unit which is locally placed between the neighboring prefabricated buildings. 
     
     
         13 . The building according to  claim 11  wherein a part of the roof panel is disposed over the neighboring prefabricated buildings, and the roof panel has a flexible bend portion in a portion which is placed on the supporting unit.