Abstract:
A composite integrated module, comprising:
       a floor member having a plurality of frames extending in horizontal direction and a formwork placed on said frame,   wherein anchor members engaged with removable tightening apparatuses from above said formwork are provided on a lower surface of said formwork.

Description:
CLAIM OF PRIORITY 
       [0001]    The present application claims priority from Japanese application serial no. 2006-204602, filed on Jul. 27, 2006, the content of which is hereby incorporated by reference into this application. 
       BACKGROUND OF THE INVENTION 
       [0002]    The present invention relates to a composite integrated module and a method for constructing a building, and more particularly, to a composite integrated module and a method for constructing a building favorably applicable to construct a building of a nuclear power plant, for example, a reactor building. 
         [0003]    In construction of a power plant, for example, a nuclear power plant, plant structures have been modularized in order to shorten the construction period of the plant. 
         [0004]    Below will be explained examples of a construction of a nuclear power plant using the modularized structures. 
         [0005]    Japanese Patent Laid-open No. Hei 4(1993)-293864 discloses a method for constructing a nuclear power plant building using building modules. This building module forms frameworks of floor section, a plurality of columns, and ceiling section with steel frames. Steel plates for floor, columns, and ceiling are attached to the inside of the frameworks. A building module is internally equipped with machine elements such as equipment, piping, trays, ducts, supports, and the like. A plurality of building modules are set out and concrete is poured between the modules and on their ceiling. The steel plates of the walls and the ceiling are used as formworks. 
         [0006]    Modules disclosed by Japanese Patent Laid-open No. Hei 10(1998)-266602 forms a room for a nuclear power plant with two sidewall sections and a ceiling section placed on the sidewall sections. The sidewall section has steel plates and steel-frame columns and is attached the steel plates on a double side of the steel frame columns. The ceiling section comprises a Q-deck (or steel plate framework for ceiling) placed on a plurality of ceiling beams, reinforcing bars placed on the Q-deck, and piping and ducts on the ceiling beam. Concrete is poured between sidewall sections of adjacent modules, onto the Q-deck (or steel plate framework for ceiling), and between the steel plates of each sidewall section. 
         [0007]    Japanese Patent Laid-open No. 2003-66177 discloses a room module of a hydraulic control unit (HCU) for a control rod drive system in a nuclear power plant. The module frame of the room module is formed with a plurality of steel frame structures disposed lengthwise and breadthwise. A plurality of module skids disposed lengthwise and breadthwise are mounted on the steel frame. Steel plate reinforcements being included in each sidewall section are mounted on the steel frame structures and the module skids. The room module has an HCU equipment, cable ducts, and piping. The room module is placed on a plurality of rotary extendable module receiving poles that can finely control the level of the room module. The steel plate reinforcements are used as formworks. 
         [0008]    Japanese Patent Laid-open No. 2003-13621 discloses modules to be used for a power plant. This module comprises a frame having a plurality of steel columns and a plurality of steel beams. In the module, a Q-deck (or steel plate framework for ceiling) is placed on the upper part of the frame and piping and cable ducts are placed in the module. Reinforcing bars are installed around the steel beams and concrete is poured thereto for concrete walls. 
       SUMMARY OF THE INVENTION 
       [0009]    Equipment being placed on the floor in the building of the power plant is installed on supporting structures that are buried in the floor. These supporting structures must be buried in the floor concrete when the concrete is poured. Therefore, to adopt a modular construction method for carrying integrated structural elements of a room into the plant building, it is difficult to assemble the supporting structures in a module, in terms of establishing connection with the framework of the building. 
         [0010]    It is necessary to consider the following items pertaining to joint of plant facilities to the plant building such as equipment and piping that require disassembly for maintenance and inspection after they are installed. 
         [0011]    When equipment and structural elements of the power plant are installed on at least one of the floor and walls of the building, it is considered that fixing members as anchor bolts and the like are first buried in the building and then used to fix the equipment and the structural elements of the plant. However, in this installation method, it is very hard to align the bolt holes of the equipment and the structural elements of the power plant with the anchor bolts buried in the building since their accuracies of production are different. If the equipment and the structural elements of the plant are placed on the floor only, an available method comprises the steps of enclosing each anchor bolt on the building with a sleeve or like that, installing the equipment and structural elements of the plant by the anchor bolts, and pouring concrete or mortar in the space between the anchor bolt and the sleeve. However, when the equipment and structural elements are connected to the walls and concrete (or mortar) is poured horizontally, they will interfere with pouring of concrete (or mortar). Therefore, it is difficult to pour the concrete. In order to solve this problem, it become required to pour the concrete that becomes the building after the anchors in the wall were installed concurrently with the installation of the equipment and structural elements. However, when ordinary removable formworks are to be used, the equipment and the structural elements of the plant will interfere with the formworks to be installed and removed. This prevents connection of the equipment, formwork, and walls. Further, it is required to remove the equipment and structural elements from the building when they are inspected or exchanged. However, when the equipment and the structural element are installed on two or more surfaces of the floor and one or more walls by using the anchor bolts, they cannot be removed and remounted because the outstanding anchor bolts in two or more directions are used. 
         [0012]    When the equipment and the structural elements of the plant which are installed on a concrete groundwork and supporting structures provided with the floor of the building are assembled into a module, it is necessary to place the steel module frame to support the equipment and the structural elements of the plant below the equipment and the structural elements. In this case, the concrete groundwork and the module frame interfere with each other and consequently, the module cannot be installed. When a steel groundwork in place of the concrete groundwork is placed on the steel module frame, the module frames are exposed from the building. This aggravates the accessibility. Further, the module frames form partitioned spaces on the floor. This will make the drainage of the floor worse. Particularly, this cannot assure good decontamination in a facility that handles radioactive substances such as a nuclear power plant in which radioactive drainage is generated. 
         [0013]    A considerable method is to install anchor bolts on the floor and the walls of a module and use these anchor bolts and nuts to fasten the equipment and the structural elements of the plant onto the two surfaces of the floor and the wall as mentioned above. However, in this method it is impossible to insert anchor bolts that are provided on the floor and walls into the corresponding bolt holes of the equipment and the structural elements of the plant. 
         [0014]    Modules disclosed in Japanese Patent Laid-open No. Hei 10(1998)-266602 and Japanese Patent Laid-open No. 2003-13621 are respectively equipped with sidewalls and a ceiling and place piping and ducts (or trays) therein. However, Their prior arts do not disclose to the installation of the equipment and the structural elements of the plant in the modules. Meanwhile, modules disclosed in Japanese Patent Laid-open No. Hei 4(1993)-293864 and Japanese Patent Laid-open No. 2003-66177 are respectively equipped with the equipment in addition to the structures described by Japanese Patent Laid-open No. Hei 10(1998)-266602 and Japanese Patent Laid-open No. 2003-13621. However, Japanese Patent Laid-open No. Hei 4(1993)-293864 and Japanese Patent Laid-open No. 2003-66177 do not refer to the concrete installation structure of the equipment. 
         [0015]    An object of the present invention is to provide a composite integrated module and a method for constructing a building that facilitates installation of internal structures of the module. 
         [0016]    The present invention to accomplish the above object is characterized in that a module provides to a floor member having a plurality of horizontally-extending frames, a formwork mounted on the frames and anchor members provided on the lower surfaces of the formwork, wherein the anchor members are connected with removable tightening apparatuses from the upper part of the formwork are provided on the lower surfaces of the formworks. 
         [0017]    Since the anchor members are provided on the lower surface of the formwork the anchor members do not protrude through an upper surface of the formwork. Thus, the equipment can move along the upper surface of the formwork without being blocked by the anchor members that are to be connected with the tightening units in installation of the equipment. Therefore, the equipment can be installed in the module easily by using the anchor members and the tightening apparatuses. 
         [0018]    The above object can also be accomplished by a module comprising a floor member, a plurality of sidewall members mounted on the floor member, and a ceiling member installed the sidewalls, 
         [0019]    wherein the floor member, the wall members, and the ceiling member form an internal space of the module, the floor member has a first formwork facing the internal space, 
         [0020]    the sidewall members respectively has a second formwork facing the internal space, 
         [0021]    the ceiling member has a third formwork facing the internal space, 
         [0022]    anchor members are mounted on outerside of at least one of the first, second, and third formworks, and 
         [0023]    structures disposed in the internal space of the module are mounted to the formwork with the anchor members by connected with removable tightening apparatuses from the internal space. 
         [0024]    Since the anchor members are provided outside the formworks, internal structures can be moved in the internal space for installation without being collided with and blocked by the anchor members. Therefore, the internal structures can be easily installed in the module by using the anchor members and their tightening apparatus. 
         [0025]    A module of the present invention is characterized by comprising a floor member, a plurality of sidewall members mounted on the floor member, and a ceiling member installed the sidewalls, 
         [0026]    wherein the floor member, the sidewall members, and the ceiling member form an internal space of the module, 
         [0027]    the floor member has a plurality of frame beams mounted lower end portion of the sidewall member and is buried in concrete, 
         [0028]    a groundwork having an upper end positioned above a surface of concrete poured on the frames is provided with the frame beam, and 
         [0029]    equipment arranged in the internal space is mounted on the groundwork. 
         [0030]    Since the floor is equipped with a plurality of frames being buried in concrete and a groundwork is provided on the frame beams with the upper end of the groundwork projected above the surface of concrete that is poured above the frame beams, it is possible to easily form a concrete floor that is slanted to a specified direction by casting concrete after installing the module. Accordingly, the other invention can obtain good drainage and good decontamination. 
         [0031]    In accordance with the present invention, structures to be disposed in the internal space of a module can be installed easily in the module. 
     
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0032]      FIG. 1  is a structural diagram showing a module according to a preferred embodiment of the present invention. 
           [0033]      FIG. 2  is a detailed structural diagram showing an anchor member shown in  FIG. 1 . 
           [0034]      FIG. 3  is a explanatory drawing showing a method for mounting anchor members by using a positioning tool. 
           [0035]      FIG. 4  is an oblique perspective view showing installed equipment  48  shown in  FIG. 1 . 
           [0036]      FIG. 5  is a front view showing installed equipment  48  shown in  FIG. 1 . 
           [0037]      FIG. 6  is a structural drawing showing installed piping placed around equipment  48  shown in  FIG. 1 . 
           [0038]      FIG. 7  is a structural drawing showing a module of Embodiment 2 according to another embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0039]    Below will be explained embodiments of the present invention referring to drawings. 
       Embodiment 1 
       [0040]    Referring to  FIG. 1  to  FIG. 6 , below will be explained a module that is a preferable embodiment of the present invention and applicable to a building of a power plant, for example, to a reactor building of a nuclear power plant. The module  30  of the present embodiment is for a single room of the reactor building. The module  30  is provided with a plurality of sidewall members  31 , the floor member  32 , and the ceiling member  33 . Four sidewall members  31  arranged on every side of the module  30  are connected each other. The floor member  32  is mounted on the lower end portion of the sidewall members  31 . The ceiling member  33  is mounted on the upper end portion of the sidewall members  31 . The module  30  has room  34  which is an internal space surrounded by the floor member  32 , the ceiling member  33 , and the sidewall members  31 . At least one of the sidewall members  31  is provide with a door (not shown) through which a person can walk. The module  30  contains equipment  19  (e.g., tank and others) placed in room  34 . The equipment  19  in the room  34  is an internal structure. The module  30  is a room module having the internal structures. The equipment  19  is provided with an installation frame  24  facing the sidewall members  31  and an installation frame  25  facing the floor member  32 . The installation frame  24  is attached to the sidewall members  31  with installation bolts  38 . Similarly, the installation frame  25  is attached to the floor member  32  with installation bolts  37 . Components (e.g., frame beams and frame columns) respectively composing the sidewall members  31 , the floor member  32 , and the ceiling member  33  are made of steel. 
         [0041]    The floor member  32  comprises a plurality of frame beams  11 A, a plurality of frame beams  11 B, a steel floor plate  18 , and a plurality of anchor members  35 . Each frame beam  11 A is aligned in one direction and each frame beam  11 B is aligned in another direction orthogonal to the one direction. The frame beams  11 A and the frame beams  11 B are welded together in this status to form a grid. The steel floor plate  18  is welded to the upper surfaces of frame beams  11 A and  11 B. The plurality of anchor members  35  are fixed in place on the back side of the steel floor plate  18 . These anchor members  35  are perpendicular to the steel floor plate  18  and not projected to the inside of the room  34 . As shown in  FIG. 1 , the central part of the floor member  32  has neither the frame beam  11 A nor the frame beam  11 B because the slanted floor  17  is formed here. 
         [0042]    The sidewall member  31  is provided with a plurality of frame columns  1 , steel wall plates  13 , and a plurality of anchor members  36 . The frame columns  1  are horizontally disposed at preset intervals. The steel wall plates  13  are mounted on the frame columns  1  on the inward side of the frame columns  1 . The steel wall plate  13  faces the room  34  formed in the module  30 . The plurality of anchor members  36  are fixed in place on the back side of the steel wall plates  13 . The anchor members  36  are perpendicular to the steel wall plates  13  but not projected to the inside of the room  34 . 
         [0043]    The ceiling member  33  is provided with a plurality of frame beams  4 , Q-deck  12 , and frame beams  40 . The frame beams  40  are disposed on four sides of the module  30  to form a rectangular ring. Each frame beam  40  includes beam members  41  and  42 , and a plurality of beam members  43 . The beam members  43  are arranged between beam members  41  and  42  and disposed in the longitudinal direction of beam members  41  and  42 . Each end of beam member  43  is connected welded to beam member  41  and  42 . Q-deck  12  can be replaced by a steel ceiling formwork. 
         [0044]    Each frame beam  4  and Q-deck  12  are disposed in the rectangular ring being formed with four frame beams  40 . The frame beams  4  are disposed in parallel along a predetermined direction. The Q-deck  12  is mounted on every frame beam  4 . Both end portions of each frame beam  4  are respectively welded to the opposite two frame beams  40  (not shown in  FIG. 1 ), specifically to internal beam members  42 . One end portion of Q-deck  12  is mounted on respective beam members  42  of the two opposite frame beams  40  in  FIG. 1 . 
         [0045]    The lower end portions of the frame columns  1  in four sidewall members  31  are respectively welded to one end portion of the frame beam  11 A or  11 B of the floor member  32 . Each frame column  1  of two opposite sidewall members  31  is respectively welded to one end portion of respective frame beams  11 A of the floor member  32 . The number of the frame columns  1  of two sidewall members  31  that are provided is equal to the number of the frame beams  11 A of the floor member  32 . Each frame columns  1  of other two sidewall members  31  that are not shown in  FIG. 1  are respectively welded to one end portion of the frame beams  11 B of the floor member  32 . The number of frame columns  1  of other two sidewall members  31  that are provided is equal to the number of the frame beams  11 B of the floor member  32 . 
         [0046]    The upper end portion of the ceiling member  33  is mounted on four sidewall members  31 . Respective beam members  43  in the ceiling member  33  are placed on the frame columns  1  of four sidewall members  31 . The beam members  43  are separately welded to the frame columns  1 . The upper end portion of the steel wall plate  13  of respective sidewall members  31  is welded to related frame beam  40 , for example, respective beam members  43 . It is possible to weld the steel wall plate  13  to the beam members  43 . 
         [0047]    The module  30  is provided with plant structures  9  such as piping, cable trays, and ducts and the like. The plant structures  9 , for example, the piping to be connected to the equipment  19  are supported by supports  44  that are attached on the frame beam  4 . Other internal structures are plant structures  9  disposed in the room  34 . 
         [0048]    Referring to  FIG. 2 , a detailed structure of the anchor members  35  and  36  will be explained using anchor member  35  as an example because the anchor members  35  and  36  are the same in structure. The anchor member  35  included a cylindrical connection member  20  and an anchor bolt  21 . The connection members  20  are internally threaded. The anchor bolt  21  has a threaded portion to be engaged with the screw thread of the connection members  20 . The anchor bolt  21  is screwed in into the connection member  20  from one end of the connection member  20 . The anchor bolt  21  is screwed in as far as approximately half of the length of the connection member  20 . In this status, the anchor bolt  21  is fastened to the connection member  20 . Anchor member  35  with anchor bolt  21  fastened removably to the connection member  20  is fixed to a predetermined position on the back surface of the steel floor plate  18 . In other words, the connection member  20  is mounted on the back surface of the steel floor plate  18  with the other end of the connection member  20  (the end which is not filled with anchor bolt  21 ) faced to the back side of the steel floor plate  18 . Opening  39  is formed in the steel floor plate  18  at a point which is on the extension of the center line of the connection member  20 . The opening  39  is provided for each anchor member  35  oppositely to the screw hole of the connection member  20 . The anchor member  35  does not project above the steel floor plate  18  towards the inside of the room  34 . 
         [0049]    Anchor member  36  as well as the anchor member  35  comprises the connection member  20  and the anchor bolt  21 . One end of the connection member  20  of the anchor member  36  is fixed to a predetermined position on the back surface of the steel wall plate  13 . Opening  39  is formed in the steel wall plate  13  at a point which is on the extension of the center line of the connection member  20 . The opening  39  of the steel wall plate  13  is provided for each anchor member  36  oppositely to the screw hole of the connection member  20 . 
         [0050]    In the above description, each of anchor members  35 ,  36  is an assembly of the connection member  20  and the anchor bolt  21 . However, it is possible to use the anchor member as a single-component unit. 
         [0051]    Referring to  FIG. 3 , a method to fix the anchor members  35 ,  36  on the steel floor plate  18  and the steel wall plate  13  will be explained using fixation of the anchor member  35  as an example. The position and number of the anchor members  35  are determined by the position and number of through holes, in which mounting bolts  37  are inserted, formed in the installation frame  25  on which the equipment  19  is placed. Positioning tool  6  shown in  FIG. 3  is used to mount the anchor members  35  on the steel floor plate  18 . The positioning tool  6  determines positions of the anchor members  35  whose number is determined by the position and number of the above-described through holes formed in the installation frame  25 . The openings  39  as many as the through holes are formed in the steel floor plate  18 . The positioning tool  6  that holds the predetermined number of the anchor members  35  is put in place on the back surface of the steel floor plate  18 . The connection member  20  for each anchor member  35  held by the position tool  6  is fixed on the back surface of the steel floor plate  18 . The use of the positioning tool  6  increases the accuracy of positioning the anchor members  35  and  36  onto the back surfaces of the steel floor plate  18  and the steel wall plate  13  and the accuracy of installation of the anchor members  35  and  36 . The anchor members  35  are respectively fixed so as not to interfere with the frame beams  11 A and  11 B. 
         [0052]    The position and number of the anchor members  36  are determined by the position and number of the through holes, in which mounting bolts  38  are inserted, formed in the installation frame  24  on which the equipment  19  is placed. The predetermined number of the anchor members  36  is fixed on the back surface of the steel wall plate  13  in sequence by using the positioning tool  6 . The anchor members  36  are respectively fixed so as not to interfere with the other members when they are fixed. 
         [0053]    The equipment  19  is installed on two surfaces of the module  30 . As already explained, in the present embodiment, the equipment  19  is installed on the floor member  32  and one of the sidewall members  31 . The equipment  19  is installed by the following procedure. The installation frame  25  placed the equipment  19  is put on the floor member  32  so as to align its through holes of the installation frame  25  over the openings  39  in the steel floor plate  18 . Similarly, the through holes of frame  24  are aligned over the openings  39  of the steel wall plate  13 . In this status, the predetermined number of mounting bolts (fastening apparatus)  37  are respectively inserted into the corresponding screw holes of the connection members  20  of the anchor members  35  through the corresponding through holes formed in the installation frame  25  and openings  39  in the steel floor plate  18 . When the mounting bolt  37  is turned and the screw thread of the mounting bolt  37  is engaged with the screw thread of the connection member  20  of the anchor members  35 , the installation frame  25  is removably fastened to the floor member  32 . Similarly, the predetermined number of mounting bolts (fastening apparatus)  38  are respectively inserted into the corresponding screw holes of the connection members  20  of the anchor members  36  through the corresponding through holes formed in the installation frame  24  and the openings  39  in the steel wall plate  13 . When the mounting bolt  37  is turned and the screw thread of the mounting bolt  37  is engaged with the screw thread of the coupling member  20  of the anchor members  36 , the installation frame  24  is removably fastened to the sidewall member  31 . 
         [0054]    An equipment  58  is mounted on one surface of the module  30 , that is, the floor member  32 . The equipment  58  is fastened to the floor member  32  by engaging the mounting bolts  37  inserted in through holes formed in frame  59  with the anchor members  35  that are provided on the back surface of the steel floor plate  18  as well as the equipment  19 . 
         [0055]    Other equipment  48  (e.g., rotary apparatus) is mounted on the steel groundwork  49  placed on the frame beams  11 A and  11 B. It is necessary that the floor of the module  30  assures the drainage and decontamination of radioactive substances. For this purpose, in the present embodiment, the steel groundwork  49  is provided the steel groundwork  49  on the frame beams  11 A and  11 B buried in concrete and the equipment  48  is installed on the steel groundwork  49 . When the slanted surface  17  is formed by the poured concrete over the frame beams  11 A and  11 B, it is so constructed that the upper end of the steel groundwork  49  is above the surface of the poured concrete. The steel floor plate  18  is not provided on the frame beams  11 A and  11 B on which the steel groundwork  49  is placed. In this case, a floor margin  50  to bury the frame beams  11 A and  11 B is formed. 
         [0056]    The module  30  of the present embodiment is provided with the plurality of columns  8  for structures in the center part of the room  34 . These columns  8  are mounted on the plurality of frame beams  4  of the ceiling member  33 . The lower ends of each column  8  is supported by temporary columnar support  7  that is provided on the frame beam  11 B of the floor member  32  so that the center of the ceiling member  33  is supported by the columns  8  and the temporary columnar supports  7 . It is possible to substitute the temporary columnar supports  7  by extension of the columns  8  on the frame beam  11 B. 
         [0057]    Below will be explained a method for constructing a building with the module  30  provided with the equipments  19 ,  48 , and  55  by using a reactor building as an example. The module  30  is assembled in a factory and transferred to the building construction field. If the module  30  is too big to be transferred from the factory to the construction field, it is possible to manufacture required parts in the factory and assemble the parts into the module  30  in the field of the nuclear power plant or, for example, near the construction field of the plant. 
         [0058]    A plurality of embedded plates  10  each of which has a plurality of anchors  45  on back surface of the embedded plate  10  are buried in place beforehand in the field of the reactor building on which the module  30  is placed. The upper surface of embedded plate  10  is a little lower than the reference floor level (by the height of the frame beam  11 A or  11 B). Concrete is poured to the level of the upper surface of the embedded plate  10 . 
         [0059]    The module  30  is lifted by a crane with its the floor member  32  faced downward, transferred to the construction site of the reactor building, and placed on the plurality of embedded plates  10  buried in concrete. Burial margins of the frame beams  11 A and  11 B buried in concrete are assured by placing the module  30  on the embedded plates  10  that is in the above level. After concrete is poured to the upper surface level of the embedded plates  10  and hardened, the module  30  is placed on the embedded plates  10 . Therefore, the weight of the module  30  is steadily transmitted to the floor of the reactor building. This structure can reduce the frame beams  11 A and  11 B and the weight of the floor member  32 . This leads to reduction of weight of the module  30 . 
         [0060]    Reinforcing bars (not shown) are disposed above the ceiling member  33 . Four wooden formworks  23  are provided oppositely to steel wall plates  13  outside the sidewall members  31  that are provided on four sides of the module  30 . The wooden formworks  23  are not attached to the module  30 . After the module  30  is placed on the predetermined position where the reactor building is constructed, the wooden formworks  23  are placed before concrete is poured. A clearance of a predetermined distance is provided between the steel wall plate  13  and the wooden formworks  23 . Concrete is poured on the upper part of the ceiling member  33  and to the outside of the respective sidewall members  31 . To pour concrete to the outside of the sidewall members  31 , concrete is poured into the space between the steel wall plate  13  and the wooden formwork  23  through the space between the sidewall member  31  and the beam member  43 . When concrete is poured on the floor, the frame beams  11 A and  11 B, the anchor members  35 , the embedded plates  10 , and the anchor members  45  are all buried in concrete. Similarly, the anchor members  36  fixed on the back surface of the steel wall plate  13  and the frame columns  1  are also buried in concrete poured between the steel wall plate  13  and the wooden formwork  23 . Further a concrete layer of a predetermined thickness is poured above the Q-deck  12 . The steel wall plates  13 , the Q-deck  12 , and the steel floor plate  18  are used as formworks for pouring concrete. When a steel formwork of the ceiling is used instead of the Q-deck  12 , the steel formwork is used as a formwork for the ceiling. Item  2  indicates ceiling concrete and item  3  is wall concrete. 
         [0061]    Slanted surface  17  of a concrete floor is formed in the center of the floor member  32  in the room  34 . The slanted surface  17  is the lowest at the center and a drain collection pit  46  is formed there to collect drain. 
         [0062]    In the above concrete pouring, concrete is also placed on the floor margin  50  which is on a place where the steel groundwork  49  is placed. With this, the frame beams  11 A and  11 B are poured in concrete. Further, the slanted surface  17  is formed above the floor member  32 . Since the upper end portion of the steel groundwork  49  is raised as already explained, a concrete floor having the slanted surface  17  can be formed below the upper end portion of the steel groundwork  49  in the module  30 . 
         [0063]    After the poured concrete becomes solidified, the anchor members  35  have functions of anchoring the steel floor plate  18  and fastening the equipment  19  together with the mounting bolts  37 . Similarly, anchor members  36  have functions of anchoring the steel wall plates  13  and fastening the equipment  19  together with the mounting bolts  38 . 
         [0064]    In the present embodiment, the anchor members  35  and the anchor members  36  are provided respectively on the back surface of the steel floor plate  18  and on the back surface of the steel wall plate  13  and the anchor members are not projected over the surface of each steel plate  18 ,  13 . Thus, the present embodiment can easily install the internal structures that must be installed on at least two of the sidewall members  31 , the floor member  32 , and the ceiling member  33 , specifically the equipment  19 , into the module  30 . It is possible to align the through holes, into which the mounting bolts  37  are inserted, formed in the installation frame  25  with the openings  39  formed in the steel floor plate  18  while moving the lower surface of the installation frame  25  of equipment  19  horizontally along the upper surface of the steel floor plate  18 . If the through holes are not aligned with the openings  39  when the lower surface of the frame  25  touches the upper surface of the steel floor plate  18 , it is possible to easily align the through holes with the openings  39  by moving equipment  19  horizontally while the lower surface of the frame  25  touches the upper surface of the steel floor plate  18 . In this state, because it is possible to touch directly a side surface of the installation frame  24  to an inner surface of the steel wall plate  13 , the through holes, into which the mounting bolts  38  are inserted, formed in the installation frame  24  can be easily aligned with the openings  30  formed in the installation  24 . As already explained, the mounting bolts  37  are engaged with the connection members  20  of the anchor member  35  and similarly the mounting bolts  38  are engaged with the connection members  20  of the anchor member  36 . Therefore, the equipment  19  can be easily installed on two surfaces of the module  30 . In accordance with the present embodiment, it never happens that the equipment  19  is blocked by the anchor members  35  and  36  while moving to the installation site. Therefore, as explained above, the equipment  19  can be easily installed on two surfaces of the module  30 . 
         [0065]    The present embodiment can dissolve the aforementioned problems of installing plant equipment with anchor bolts and nuts, by providing anchor bolts on the floor member and wall members of the module. 
         [0066]    To perform maintenance and inspection of the equipment  19  in the annual inspection of the nuclear power plant after the module  30  is installed, the mounting bolts  37  and  38  are removed from the floor member  32  and the sidewall member  31 . Thus, the equipment  19  can transfer and the maintenance and the inspection of the equipment  19  can be easily carried out. Necessarily, after the maintenance and the inspection, the equipment  19  can be easily re-installed in the module  30  as already explained. The tightening forces of the mounting bolts  37  and  38  can be transmitted to concrete through the anchor members  35  and  36 . 
         [0067]    Unlike the equipment  19 , the equipment  58  is installed on one surface (the floor member  32 ) in the module  30  with the anchor members  35  and the mounting bolts  37 . Since the anchor members  35  are not projected above the steel floor plate  18 , the equipment  58  can move without coming into collision with the anchor members  35  during moving the equipment  58  horizontally for installing on the steel floor plate  18  of the floor member  32 . Further, the movement of the equipment  58  is not limited by the anchor members  35 . In this way, the present embodiment can easily install the internal structures in the module  30  by using the anchor members  35  and the mounting bolts  37  even when the internal structure is mounted on a single inner surface of the module  30 . By using the anchor members  35  provided on the back surface of one of the steel floor plate  18 , the steel wall plate  13 , and Q-deck  12 , the internal structures can be installed easily and quickly on one surface (any one of sidewall members  31 , the floor member  32 , and the ceiling member  33  of the module  30 . 
         [0068]    It is possible to easily demount the equipment  58  from the floor member  32  by disengaging the mounting bolts  37  from their anchor members  35 . So, the maintenance and the inspection of the equipment  58  can be easily carried out. After the maintenance and the inspection, the equipment  58  can be remounted on the floor member  32  easily as explained above. 
         [0069]    Since the ceiling member  33  is supported by the frame columns  1  that are disposed under the ceiling member  33 , the frame columns  1  can support the weight of concrete poured on the Q-deck  12  during pouring concrete. Therefore, this enables simultaneous the pouring of concrete on Q-deck plate  12  and the outside of the sidewall members  31  and shortens the construction period of a nuclear power plant. Particularly, the present embodiment can omit the period of aging wall concrete before concrete is poured on the ceiling section. 
         [0070]    The present embodiment can greatly reduce the flexure of the frame beams  4  and the Q-deck  12  during pouring concrete on the Q-deck  12  because the center portion of the ceiling member  33  is supported by the columns  8  and the temporary columns  7 . Therefore, the positions on which plant structures  9  are placed will not be affected by the pouring of concrete and the plant structures  9  can be always placed on the predetermined positions. 
         [0071]    In this embodiment, because the lower surface of the frame beam  43  is high as the lower surface of the beam member  43 , notches in the beam through holes can be omitted. Therefore, processes of notching the steel wall plates  13 , and processes to treat the notches can be omitted too. Further, since the steel wall plates  13  are welded to the frame beams  40 , the steel wall plates  13  are protected against deformation while the module  30  having four sidewall members  31  and the ceiling member  33  is hoisted up and transferred by a crane. 
         [0072]    To support the reactive force of the equipment  48 , for example, a rotary apparatus during operation, the steel groundwork  49  requires a structure to release the reactive force to the building of the reactor building via the frame beams  11 A and  11 B. To solve this problem, it is assumed to be possible to provide stud bolts on the frame beams  11 A and  11 B to fasten the equipment. However, it is necessary to prevent stud bolts from interfering with reinforcing bars placed on the floor. As the result, the floor margin  50  is forced to become greater and a lot of unwanted concrete is used. To prevent the increase of the floor margin  50 , the present embodiment provides embedded plates  51  under the frame beams  11 A and  11 B just under the steel groundwork  49 . The embedded plates  51  are welded (or bolted) to the frame beams  11 A and  11 B. Each embedded plate  51  is fixed with a plurality of anchors  52  on the lower surface thereof. The embedded plates  51  and the anchors  52  are buried in concrete. With the above construction, the present embodiment enables transmission of the reactive force of the operating rotary apparatus on the steel groundwork  49  to the building and assures the required strength of the rotary apparatus to the foundation structure. Further, the use of the embedded plates  51  enables installation of shim materials for module level adjustment between the embedded plates  51  and the frame beams  11 A and  11 B. In other words, the adjustment of the installation level of the module  30  is made easier. 
         [0073]    For installation of a rotary apparatus and other equipment that require high rigidity for the steel groundwork  49 , it is possible to assure the rigidity of the foundation by the steel groundwork  49  and the frame beams  11 A and  11 B and increase the rigidity as high as that of a conventional concrete groundwork by filling steel groundwork  49  with concrete (or mortar) after installing the module  30  on the predetermined installation site of the reactor building. 
         [0074]    Since the present embodiment can form a slanted concrete surface  17  towards the upper part of the floor member  32  by the pouring of concrete, drain liquid can be easily collected into the drain recovery pit  46 . Further, also when a decontamination work is carried out on the internal structures (for example, piping  53 A shown in FIG.  7  to be explained later) in the module  30 , the generated waste water can be collected into the drain recovery bit  46 . 
         [0075]    As explained above, when the equipment  48  is installed using the steel groundwork  49 , supports (or stands)  54 A,  54 B, and  54 C to support pipes  53 A,  53 B, and  53 C around the equipment  48  are mounted on the frame beams  11 B (or  11 A) that are buried in concrete (see  FIG. 7 ). However, when the operational reactive force of the equipment  48  is great and the strength of frame beam  11 B is not enough for it, support  54 B is provided on the embedded plate  55  that is welded to the upper surface of the frame beam  11 B. The embedded plate  55  is provided with anchors  56 . If the embedded plate  55  is buried in concrete that is below the slanted surface  17  of the floor, embedded plate supporting member  57  is provided on the upper surface of the frame beams  11 B (see  54 C of  FIG. 6 ). The embedded plate  55  is mounted on the embedded plate supporting member  57  and the support  54 C is mounted on this embedded plate  55 . The use of the embedded plate  55  and the embedded plate supporting member  57  can assure the floor strength that is required during operation of the equipment  48  and improve the workability of the building floor. 
         [0076]    Although the module  30  in the above embodiment is applied to a reactor building, the module  30  is also applicable to a turbine building and a radioactive waste building in the nuclear power plant. Further, the module  30  can be applied to building of a thermal power plant. 
       Embodiment 2 
       [0077]    A module which is another embodiment of the present invention will be explained below referring to  FIG. 7 . Module  30 B of Embodiment 2 uses the floor member  32  of the module  30  of Embodiment 1 and installs the equipment  58  and the equipment  48  (for example a rotary apparatus) on the floor. The module  30 B is not provided with the sidewall members  31  and the ceiling member  33  of the module  30 . As shown in  FIG. 4  and  FIG. 5 , the equipment  48  is installed on the steel groundwork  49  placed on the frame beams  11 A and  11 B. Also in the module  30 B, the anchor members  35  that are used in the module  30  are provided on the back surface of the steel floor plate  18  of the floor member  32 . The equipment  58  is fixed to the floor member  32  by engaging the mounting bolts  37 , each of which is inserted into through holes formed in the frame  59 , with the anchor members  35  provided on the back surface of the steel floor plate  18 . Similarly to Embodiment 1, the floor member  32  is not provided with the frame beams  11 A and  11 B in the center of the floor since slanted surface  17  of the floor is formed there. 
         [0078]    The module  30 B like the module  30  is also placed on a plurality of the embedded plates  10  buried in a predetermined construction site of the reactor building. A room is formed in the upper part of the module  30 B. Therefore, wooden formworks for side walls and the ceiling of the room are provided before the pouring of concrete. As for the side walls, two wooden formworks are placed face to face and reinforcing bars are provided between these wooden formworks. The wooden formwork of the ceiling is supported by a plurality of supporting members. In this status, concrete is poured on the upper part of the wooden formwork of the ceiling and between two wooden formworks of the side wall. The anchor members  35  are buried in concrete. The slanted surface  17  that inclines to a drain recovery pit  46  is formed in the center of the floor member  32  of the module too. Similarly to Embodiment 1, the present embodiment forms the slanted surface  17  above the frame beams  11 A and  11 B in the place where the steel groundwork  49  is placed. 
         [0079]    The present embodiment like Embodiment 1 facilitates installation of the equipment (structures)  55  since the anchor members  35  and the mounting bolts  37  are used to install the equipment  58 . Further, since the present embodiment places the steel groundwork  49  on the frame beams  11 A and  11 B similarly to Embodiment 1 with its upper end portion above the surface (the slanted surface  17 ) of concrete that covers the frame beams  11 A and  11 B, the slanted surface  17  can be formed above the floor member  32 . 
         [0080]    It is possible to place a module without the equipment  48  and  55 , specifically a module having a steel groundwork  49  on the floor member  32  or a module having a floor member  32  without the steel groundwork  49  on the plurality of the embedded plates  10  that are buried in the predetermined construction site of the reactor building before the pouring of concrete. In this case, the equipment and other structures are installed by using the anchor members  35  of the floor member  32  or the steel groundwork  49  after concrete is solidified. Embodiment 2 like Embodiment 1 facilitates installation of the equipment  55  also when the equipment is secured by the anchor members  35  and the mounting bolts  37  after the pouring of concrete.