JP6411832B2 - Temporary beam connecting member and structure construction method - Google Patents

Description

  The present invention relates to a temporary beam connecting member and a structure construction method.

  Patent Document 1 describes a structure construction method for constructing a multi-layered structure by constructing a reference floor under the drive floor in the process of raising the drive floor along the main pillar. In this construction method, a gap is formed between the column beam joint on the drive floor and the main column so that the drive floor can be raised along the main column. When the drive floor is permanently fixed to the main pillar of the floor planned to be installed (for example, the rooftop floor), a cover plate is inserted into the gap, and the column beam joint and the cover plate of the drive floor are inserted. The main beam is joined by welding.

Japanese Patent No. 3089348

  However, if permanent bonding between the driving floor and the main pillar is used by welding after filling the gap with the cover plate, the reliability of the main pillar supporting the load on the driving floor is improved. The problem remains.

  An object of the present invention is to increase the reliability of the connection between the driving floor and the main pillar.

According to the present invention, there is a temporary beam connecting member that is movable along the main column and temporarily sets the main beam, the opening through which the main column can be inserted, and the connection portion that connects to the main beam. And a support member for connecting to the permanent pillar when supported by the permanent pillar, and a plurality of support plates are erected on a side surface of the permanent pillar, The support plate includes at least one of an erection piece for temporarily fixing a welded portion when the main column is connected to the top and bottom, and a gusset plate for permanently fixing the main column and the main beam. The opening is octagonal and forms a space separated from the main column so as to avoid the support plate, and the temporary beam connecting member is connected to the book via the support member and the support plate. is supported by the設柱, temporary beams connecting member, characterized in that It is provided.

Further, according to the present invention, in the process of raising the drive floor along the main pillar, a structure construction method for constructing a multi-layer structure by constructing a reference floor under the drive floor, the drive floor, a plurality of the設梁, the present設柱is inserted, and a temporary beam connecting member to which the present設梁is connected, the temporary beam connecting member, inserting the present設柱A possible opening , a connecting portion connected to the permanent beam, and a support member for coupling to the permanent column when supported by the permanent column, and a side surface of the permanent column The plurality of support plates are erected, and the plurality of support plates include an erection piece for temporarily fixing a welded portion when the main columns are connected to each other vertically, and the main columns and the main beams. And at least one of a gusset plate that permanently fixes the opening, and the opening is an octagon, A space separated from the main pillar is formed so that the support plate can be avoided, and the structure construction method includes the support member and the support in the process in which the drive floor rises along the main pillar. A supporting step of supporting the temporary beam connecting member on the permanent pillar via a plate, and the temporary beam when the drive floor rises along the permanent pillar and reaches a predetermined floor of the structure. There is provided a structure construction method comprising a removing step of removing a connecting member and a connecting step of connecting the plurality of permanent beams and the permanent columns.

  According to the present invention, the reliability of the connection between the driving floor and the main pillar can be improved.

The top view and sectional drawing of the temporary beam connection member by one Embodiment. The perspective view of the temporary beam connection member by other embodiment. The top view and sectional drawing which show the temporary support by the permanent pillar of a temporary beam connection member. Explanatory drawing which shows the structure construction method by one Embodiment. Explanatory drawing which shows the structure construction method of FIG. Explanatory drawing which shows the structure construction method of FIG. Explanatory drawing which shows the structure construction method by one Embodiment. Explanatory drawing which shows the structure construction method of FIG.

  Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings. In the drawings, the same reference numerals indicate the same elements, and the vertical and horizontal directions with respect to the paper surface are used as the vertical and horizontal directions of the members in the present embodiment in the description in the text.

  1A and 1B are a plan view and a cross-sectional view showing temporary beam connecting members 10A and 10B according to an embodiment of the present invention. In the structure construction method of the present embodiment to be described later, a structure construction method is adopted in which the truss roof structure 1 using two floors, the rooftop floor RF and the top floor TF, is used as the driving floor. Temporary beam connecting members 10A and 10B are arranged on the steps. FIG. 1A shows a plan view of a temporary beam connecting member 10A connected to the floor of the top floor TF. In addition, FIG. 1B shows an upper temporary beam connecting member 10B that is connected to the floor of the rooftop RF on the upper stage and serves as the first floor frame, and is connected to the floor of the uppermost floor TF on the lower stage. A lower temporary beam connecting member 10A which is a two-floor frame is shown. Note that FIG. 1A is a view in which the main pillar P is cut along the AA cross section of FIG. Moreover, FIG. 1 (B) is the figure which cut | disconnected temporary beam connection member 10A, 10B of the upper and lower two steps | paragraphs in the BB cross section of FIG. 1 (A).

<Temporary beam connecting member 10A>
With reference to FIG. 1A, the upper and lower temporary beam connecting members 10A and 10B will be described by taking the lower temporary beam connecting member 10A as an example. The upper temporary beam connecting member 10B has the same configuration as the lower temporary beam connecting member 10A except that it does not include a support bracket 14 described later. The lower temporary beam connecting member 10A has a rectangular main body part 11 in plan view, a connection part 12 connected to the lower main beam BA at its four corners, and an octagonal shape through which the main pillar P can be inserted into the central part. The opening 13 and the support bracket 14 are provided on the main body 11.

  The main body 11 is formed in a hollow box shape having an upper and lower surfaces whose outer shape is a rectangle, an outer peripheral surface that connects the upper and lower surfaces, and an inner peripheral surface that forms the opening 13. The connecting portion 12 has a cross-sectional shape of an I-shape and has a shape corresponding to the lower-stage main beam BA adopting a section-I shaped steel, and the lower-stage main beam BA and a plurality of connecting plates 15. Are connected by fastening members such as bolts, and temporarily support the lower main beam BA.

  The octagonal opening 13 forms a space apart from the main pillar P in the central portion of the lower temporary beam connection member 10A so that the lower temporary beam connection member 10A can move along the main pillar P. doing. The space prevents the plurality of erection pieces EP, gusset plates GP and the like standing from the outer peripheral surface of the main pillar P and the lower temporary beam connecting member 10A from contacting each other. Further, by making the opening 13 an octagonal shape, a space for avoiding a plurality of erection pieces EP and the like standing from the side surface of the main pillar P can be formed with the minimum necessary chamfering. The opening 13 through which the permanent pillar P can be inserted can be formed without reducing the rigidity of the temporary beam connecting member 10A.

  The support bracket 14 is a plate-like member which is erected from the upper surface of the main body 11 and has a hole 14a into which a support wire SW described later can be inserted. The support bracket 14 is provided at a position corresponding to the support plates SP1 and SP2 provided on the main column P for hanging and supporting a lower temporary beam connecting member 10A described later. Further, these support plates SP1 and SP2 are provided at positions corresponding to the erection pieces EP provided on the main column P in the longitudinal direction of the main column P. In the present embodiment, two support brackets 14 are installed at two locations on the upper surface of the main body 11 corresponding to the support plates SP2 provided on each side surface of the main pillar P. Yes. In the present embodiment, a hydraulic jack HJ that lifts up a drive floor described later is disposed on the main body 11 between the two support brackets 14 and 14.

<Truss roof structure 1>
With reference to FIG. 1 (B), the truss roof structure 1 is demonstrated. The truss roof structure 1 includes a lower permanent beam BA constituting the floor of the uppermost floor TF, a lower temporary beam connecting member 10A connected thereto, and an upper permanent beam BB constituting the floor of the rooftop RF. And an upper temporary beam connecting member 10B connected thereto, and a connecting portion 20 for connecting them. The connecting portion 20 includes, for example, a vertical member 20a using a grooved steel and a cane 20b between the lower temporary beam connecting member 10A, the upper temporary beam connecting member 10B, and the main beams BA and BB. Install to form the truss structure.

  A permanent pillar P is inserted through each opening 13 of each temporary beam connecting member 10A, 10B. When a plurality of permanent columns P, which will be described later, are welded and joined to the permanent column P, an erection piece EP for temporarily fixing the welded portion, and permanent beams BA and BB and the permanent column P are permanently provided. And a gusset plate GP used for fixing. One main pillar P is provided with erection pieces EP at both ends in the longitudinal direction and gusset plates GP at two predetermined locations in the longitudinal direction. That is, in this embodiment, it is possible to support a two-layer floor with one main pillar P. In the present embodiment, the support plate SP1 through which the support wire SW for hanging and supporting the lower temporary beam connecting member 10A described above can be inserted is provided at a position adjacent to the erection piece EP at the upper end portion. SP2 is provided at a location between the two gusset plates GP. The support plate SP1 may be adopted as a part of the erection piece EP.

  As described above, the wire W that lifts up the truss roof structure 1 is inserted into the hydraulic jack HJ disposed in the lower temporary beam connecting member 10A. The upper and lower temporary beam connecting members 10A and 10B are provided with holes (not shown) for inserting the wires W passing through the hydraulic jacks HJ. Although not shown, the hydraulic jack HJ may be attached to the lower surface of the main body 11 of the upper temporary beam connecting member 10B.

  FIG. 2 shows another embodiment of the arrangement of the hydraulic jack HJ on the truss roof structure 1. FIG. 2 shows a perspective view of the truss roof structure 1. In the truss roof structure 1 described above, the hydraulic jack HJ is disposed directly on the upper surface of the main body 11 of the lower temporary beam connecting member 10 </ b> A, and the wire W is inserted into the hole provided in the main body 11. In the present embodiment shown in FIG. 2, the upper and lower temporary beam connecting members 10A and 10B are not provided with holes for inserting wires. The hydraulic jack HJ is disposed so that the wire W passes through the outside of the main body portion 11, and a base S such as H steel having a hole is provided on the main body portion 11 in order to dispose the hydraulic jack HJ on the upper portion of the main body portion 11. It arrange | positions at the upper part and has arrange | positioned the hydraulic jack HJ on it. In this way, since the holes for inserting the wires W are not formed in the upper and lower temporary beam connecting members 10A and 10B, the main body 11 of the upper and lower temporary beam connecting members 10A and 10B is compact. Can be.

<Temporary support to the main pillar P of the truss roof structure 1>
Next, a configuration in which the truss roof structure 1 is temporarily supported on the main pillar P will be described. In the structure construction method of the present embodiment to be described later, after the truss roof structure 1 that is the driving floor is lifted up to a predetermined floor, the main pillar P is connected, and the truss roof structure 1 is further lifted up. Build multi-layer structures. Therefore, when the truss roof structure 1 is raised, it is necessary to temporarily remove the truss roof structure 1 from the suspension material such as the wire W of the hydraulic jack HJ when the main pillar P is added. At this time, the truss roof structure 1 is temporarily connected to the main column P, temporarily supported by the main column P, and the extension of the main column P and the hydraulic jack HJ are switched. .

  FIG. 1B shows an embodiment in which the truss roof structure 1 is temporarily supported by the main pillar P. The temporary support between the truss roof structure 1 and the main pillar P is provided on the support bracket 14 and the main pillar P as a support member provided on the lower temporary beam connection member 10A using the support wire SW. The support plates SP1 and SP2 are connected. Thus, the truss roof structure 1 is suspended from the main pillar P and temporarily supported.

  In this embodiment, two types of methods are employed as the temporary support method. One method is a method in which the support bracket 14 provided in the lower temporary beam connecting member 10A and the support plate SP1 using the erection piece EP provided at the upper end of the main column P are connected by the support wire SW. (Left side in FIG. 1B). In the other method, the support bracket 14 provided on the lower temporary beam connection member 10A and the support plate SP2 near the lower temporary beam connection member 10A located in the lower part of FIG. 1B are connected by the support wire SW. (Right side in FIG. 1B). These two types of suspension structures are installed at two locations on one side of the main pillar P, respectively, and a total of four locations on one side of the main pillar P on two sides. Is arranged.

  In FIG. 1 (B), different suspension methods are shown on the two opposite surfaces, but the present invention is not limited to this, and selection of the suspension method for each of the four surfaces of the main pillar P Is appropriately selected by the user in consideration of the weight of the truss roof structure 1 and the like. With the above configuration, the truss roof structure 1 can be easily subjected to a load from the wire W of the hydraulic jack HJ to the main column P, and the installation work of the main column P after the load replacement is quickly performed. Can be done. Moreover, since the erection piece EP for welding provided on the main pillar P can be used as the support plate SP1, for example, the number of parts of the main pillar P can be reduced.

<Other embodiment of temporary support>
With reference to FIG. 3 (A) and FIG. 3 (B), other embodiment of the structure which temporarily supports the truss roof structure 1 to the permanent pillar P is described. Note that FIG. 3A is a view in which the main pillar P is cut along the AA cross section of FIG. FIG. 3B is a view of the upper temporary beam connecting member 10B taken along the line BB in FIG. 3A.

  In the present embodiment, the support plate SP1 and the upper temporary beam connecting member 10B are connected by the support member 30. The support member 30 includes a grip plate 30a for gripping the support plate SP1 from both sides thereof, a bracket portion 30b erected from the upper surface of the upper temporary beam connection member 10B, and a connection plate 30c for connecting them. . By fixing the grip plate 30a to the support plate SP1, the upper temporary beam connecting member 10B is supported by the support plate SP1. A method for fixing the grip plate 30a and the support plate SP1 is not particularly limited, and examples thereof include fastening members such as bolts and welding. Similarly, the bracket portion 30b can be exemplified by a fastening member such as a bolt or welding by welding to the upper temporary beam connecting member 10B. Further, as the bracket portion 30b, the support bracket 14 provided on the lower temporary beam connecting member 10A described above may be used. In this case, the upper temporary beam connecting member 10B and the lower temporary beam connecting member 10A are used. And can be members having the same structure. In the present embodiment, the configuration in which the support members 30 are arranged on the four surfaces of the main pillar P is illustrated, but the present invention is not limited to this. The structure etc. which have arrange | positioned the supporting member 30 to one surface can be illustrated.

  As another embodiment, FIG. 3C illustrates a temporary support configuration for the main pillar P of the truss roof structure 1 using a cantilever 40 as a support member. In the present embodiment, the cantilever 40 includes a protrusion 40a that is disposed on the upper surface of the upper temporary beam connecting member 10B and protrudes downward, and a cantilever body 40b that includes the protrusion 40a at the end. Yes. The cantilever 40 is provided adjacent to the opening 13 of the main body 11, and the cantilever main body 40 b is positioned in the direction of the arrow in FIG. 3C with respect to the main body 11 with the protrusion 40 a disposed in the opening 13. It is slidably arranged. 3C shows a state where the cantilever 40 protrudes so as to approach the permanent column P, and the protruding portion 40a contacts the upper end of the gusset plate GP of the permanent column. 3C shows a state in which the protruding portion 40a and the inner peripheral surface of the opening portion 13 are in contact with each other so that the cantilever 40 is separated from the main column P.

  According to this configuration, the upper temporary beam connecting member 10 </ b> B is temporarily supported on the main column P by bringing the protruding portion 40 a of the cantilever 40 into contact with the upper end of the gusset plate GP. In the present embodiment, the upper temporary beam connecting member 10B is placed on the main pillar P, not the suspension support. By doing so, the upper temporary beam connecting member 10B can be supported on the main column P by a simple operation of projecting the cantilever 40 from the upper temporary beam connecting member 10B.

<Structure construction method>
With reference to FIGS. 4-6, the structure construction method of this embodiment is demonstrated based on the mode seen from one side of the structure. In the present embodiment, six permanent pillars P (in the figure, for example, the first permanent pillar P1) are arranged in a state viewed from one side of the structure. Although not shown in the drawing, when the entire structure is viewed in a plane, six permanent columns P and seven vertical columns P are formed in a rectangular frame, and there are twelve permanent columns P inside. Although the structure provided with is employ | adopted, the number and arrangement | positioning of this installation pillar are not limited to this, The user should set suitably.

  In ST1 of FIG. 4, after the first first permanent pillar P1 is installed on the foundation 2 in the figure, the truss roof structure 1 serving as the driving floor described above is constructed, and the crane C1 installed on the rooftop floor RF The state which connected the 2nd permanent pillar P2 to the 1st permanent pillar P1 is shown. As described above, the truss roof structure 1 includes a plurality of upper-stage permanent beams BB and a plurality of upper-stage temporary beam connection members 10B that constitute the rooftop floor RF, and a plurality of lower-stage permanent structures that constitute the top floor TF. A beam BA and a plurality of lower temporary beam connecting members 10A, a plurality of connecting portions 20, and a plurality of columns p added in a subsequent construction process are provided.

  The state shown by ST2 in FIG. 4 shows a state in which the jack system J is mounted on the second main column P2 from the state of ST1. The jack system J includes a reaction force member RM attached to the upper end of the second main column P2, a wire W serving as a suspension member extending from the reaction force member RM toward the truss roof structure 1, and the above-described uppermost And a hydraulic jack HJ mounted on the temporary beam connecting member 10A on the lower level of the floor TF. This jack system J is installed at an arbitrary position of the second main column P2. For example, in the present embodiment, as shown in FIG. 4, when viewed from one side of the structure, the jack system is arranged on four second permanent pillars P <b> 2 with respect to six second permanent pillars P <b> 2. J is attached.

  The state shown in ST3 of FIG. 4 shows a state where the jack system J is operated from the state shown in ST2 and the truss roof structure 1 is lifted up to a position corresponding to the second main column P2. In the state shown in ST3, the jack system J located at the rightmost end in the figure is the state of the jack system J immediately after the truss roof structure 1 is lifted up. In the jack system J, the hydraulic jack HJ and the reaction force member RM are close to each other. Moreover, in order to further lift up the truss roof structure 1 from the state shown in ST3, the removal of the reaction member RM of the jack system J using the crane C1 installed on the roof floor RF of the truss roof structure 1 The third main pillar P3 is installed.

  At this time, when the reaction force member RM that has received the load of the truss roof structure 1 is removed, it is necessary to change the load of the truss roof structure 1. As a method of changing the load, the main pillar of the truss roof structure 1 described with reference to FIGS. 1B and 3 is used while the reaction member RM receives the load of the truss roof structure 1. Using the structure of temporary support to P, the load of the truss roof structure 1 is temporarily transferred from the reaction force member RM to the second main pillar P2. The reaction member RM is removed by the crane C1 after the connection with the truss roof structure 1 is released.

  After the reaction member RM is removed by the crane C1 as in the state shown in ST3, the third permanent column P3 added on the second permanent column P2 is placed by the crane C1, and the second permanent column is installed. After the connection of the column P2 and the third main column P3 by welding is completed, the reaction force member RM is mounted on the third main column P3. When these replacement operations are completed, the truss roof structure 1 can be lifted up, and each jack system J is in a state as shown in ST2, for example.

  The state shown in ST4 of FIG. 5 is a state in which the truss roof structure 1 shown in ST3 of FIG. 4 is lifted up from the position of the second permanent pillar P2 to the position of the third permanent pillar P3, and further shown in ST3. The state where it was lifted up to the position of the fourth main pillar P4 connected to the third main pillar P3 is shown.

  At this time, in the truss roof structure 1, an outer periphery curing G is attached to the outer periphery of the rooftop floor RF, and cranes C2, C3, and C4 for construction of the reference floor SF (see ST5) are attached below the uppermost floor TF. Yes. By doing so, a predetermined space below the top floor TF is made a closed space that is not affected by external rain and wind, and the construction of the reference floor SF below the truss roof structure 1 is not affected by the outside. By constructing like a factory, it is possible to save labor and improve quality. For the construction of the standard floor SF, the main beam B is installed on the main column P, and additional columns p that have not contributed to the lift-up of the truss roof structure 1 are sequentially installed on the main beam B. Such as constructing a slab on the wall.

  In this embodiment, although not shown in the drawings, a slab is constructed on the top floor TF to prevent rainwater and wind from entering the closed space from above, and to move the crane horizontally to the rooftop floor RF. The effect of the above-described closed space can be further enhanced by laying rails or the like.

  The state shown in ST5 of FIG. 5 is the removal of the reaction member RM, the installation of the fifth pillar P5, and the fifth pillar in order to further lift the truss roof structure 1 from the state shown in ST4. The state which connects P5 and the truss roof structure 1 with the jack system J again is shown. The replacement work of the jack system J is the same as the work performed in the state shown in ST3. In the state shown in ST5, construction of the reference floor SF is also performed using the cranes C2, C3, and C4.

  In the state shown in ST6 of FIG. 6, the reaction force member RM is attached to the upper end of the fifth column P5, and the jack system J is mounted on the truss roof structure 1 at the position of the fourth column P4. ing. At this time, the construction of the reference floor SF below the truss roof structure 1 is almost completed. In the state shown in ST7 in FIG. 6, the truss roof structure 1 is lifted up to the position of the fifth main pillar P5 by the jack system J. Thereafter, under the truss roof structure 1, construction of the reference floor SF is in progress. As described above, a multilayer structure can be constructed by repeating the construction steps mainly shown in ST5, ST6, and ST7.

<Fixing method of truss roof structure 1>
With reference to FIG.7 and FIG.8, the permanent fixing method to the permanent pillar P of the truss roof structure 1 is demonstrated. 7 and 8 are partially simplified for the sake of explanation, the same members as those used in the above description are given the same reference numerals as those described above. . As described above with reference to FIGS. 4 to 6, the truss roof structure 1 as the driving floor is lifted up along the main pillar P, so that the final permanent pillar constituting the rooftop floor RF is formed. When the position PL is reached, it is permanently connected and fixed to the final permanent pillar PL.

  ST10 in FIG. 7 shows a state in which the lifted truss roof structure 1 has reached the position of the final main pillar PL located on the top floor TF. In the state shown in ST10, in order to remove the jack system J indicated by the dotted line in the figure, the temporary beam connecting member 10A on the lower stage of the top floor TF and the final permanent pillar PL are temporarily connected by the support wire SW. is there. As for the form of temporary connection at this time, for example, as shown in FIG. 1B, the support flange 14 of the lower temporary beam connection member 10A and the support plate SP2 of the final permanent column PL are connected by the support wire SW. A configuration for connection may be employed, but is not limited thereto. Thereafter, the jack system J is removed using a crane (not shown).

  The state shown in ST11 of FIG. 7 is a removal step of removing the temporary beam connecting member 10B on the upper stage of the rooftop floor RF after removing the jack system J. In this step, a vertical member U1 serving as a temporary support member that connects the upper main beam BB and the lower main beam BA to the upper floor RF is disposed in the vicinity of the upper temporary beam connecting member 10B. Next, the upper temporary beam connecting member 10B is removed, and the vertical members 20a and the cane 20b, which are part of the connecting portion 20 connected to the upper temporary beam connecting member 10B, are also shown. To do. In the state shown in ST12 of FIG. 7, the portion E protruding from the main beam BB of the rooftop RF at the upper end of the final main column PL is removed.

  The state shown in ST13 of FIG. 8 is a connecting step of connecting the final main pillar PL and the upper main beam BB with a fastening member such as a bolt using the connecting beam BC. Here, the connecting beam BC will be described with reference to FIG. For example, referring to the upper temporary beam connecting member 10B, the space between the upper portion of the main beam BB on the side of the main column P and the gusset plate GP of the main column P and the upper level The temporary beam connecting member 10B of the main body 11 and the connecting portion 12 are arranged. In this case, when the upper main beam BB and the main column P are connected, the upper temporary beam connecting member 10B is removed, so that the end of the upper main beam BB on the side of the main column P is removed. And a gusset plate GP of the main pillar P is formed with a gap. A connecting beam BC is used as a connecting member for filling this gap.

  The connecting beam BC uses an I-shaped steel similar to the upper main beam BB. The connection between the connection beam BC and the upper main beam BB and the connection between the connection beam BC and the gusset plate GP are connected by a fastening member such as a bolt using the connection plate 15 described above. By doing so, the upper main beam BB and the main column P can be connected by a normal fastening member such as a bolt instead of welding, so that the upper main beam used as the drive floor is installed. The reliability of the connection between the beam BB and the main pillar P can be increased.

  Referring again to ST13 in FIG. 8, the permanent connection between the upper main beam BB and the final main column PL is completed as described above. At this time, as shown in the drawing, the construction of the main beam B on the reference floor below the top floor TF is completed.

  In the state shown in ST14 of FIG. 8, in order to remove the lower temporary beam connecting member 10A, the lower permanent beam BA and the lower permanent beam B are connected by a vertical member U2 serving as a temporary support member. Yes. Thereafter, in ST14 in FIG. 8, the support wire SW indicated by the dotted line, the lower temporary beam connecting member 10A, and the remaining connecting portion 20 are all removed.

  In the state shown in ST15 of FIG. 8, the lower permanent beam BA and the final permanent column PL are fastened with a fastening member such as a bolt using the connecting beam BC described above. Finally, the vertical member U2 between the lower main beam BA and the lower main beam B is removed. As described above, the operation of permanently fixing the truss roof structure 1 to the final main pillar PL is completed.

  In the present embodiment, the truss roof structure using a two-layer floor is exemplified as the driving floor, but the structure is not limited to the two layers, and the structure using the temporary beam connecting member is, for example, Alternatively, a single floor or a three-layer floor may be employed. In the present embodiment, the opening 13 has an octagonal shape. However, the present invention is not limited to this, and any shape may be used as long as it forms a space separated from the main pillar. A square or the like may be adopted. In the present embodiment, the reaction force member RM of the jack system J is disposed so as to cover the upper end portion of the main column P, and is removed every time the main column is added. For example, like the opening 13 of the temporary beam connecting member, the reaction force member RM includes an opening through which the permanent column P can be inserted, and the reaction force member RM is movable relative to the permanent column P. May be. Moreover, in this embodiment, although using shape steel, such as I type and a groove steel, was illustrated for each structural member, it is not limited to this, You may employ | adopt various shape steel.

1 Truss roof structure, 10A, 10B Temporary beam connection member, 12 Connection portion, 13 Opening portion, 14 Support bracket, B, BA, BB Main beam, P Main column, RF rooftop floor, TF top floor, SF standard Floor

Claims (3)

A temporary beam connecting member that is movable along the main column and temporarily sets the main beam,
An opening through which the main pillar can be inserted;
A connecting portion connected to the main beam;
A support member for connecting to the permanent pillar when supported by the permanent pillar ;
A plurality of support plates are erected on the side surface of the main pillar,
The plurality of support plates are at least one of an erection piece that temporarily fixes a welded portion when the main pillars are joined together vertically and a gusset plate that permanently fixes the main pillars and the main beams. Including
The opening is octagonal and forms a space separated from the main pillar so as to avoid the support plate;
The temporary beam connecting member is supported by the main column via the support member and the support plate.
A temporary beam connecting member characterized by that. The support member and the support plate are connected by a wire, and the temporary beam connecting member is suspended from the main pillar by the wire.
The temporary beam connection member according to claim 1. In the process of raising the drive floor along the main pillar, a structure construction method for constructing a multi-layer structure by constructing a reference floor under the drive floor,
The drive floor is
Multiple permanent beams,
A temporary beam connecting member through which the permanent pillar is inserted and the permanent beam is connected;
With
The temporary beam connecting member is
An opening through which the main pillar can be inserted ;
A connecting portion connected to the main beam;
A support member for connecting to the permanent pillar when supported by the permanent pillar;
A plurality of support plates are erected on the side surface of the main pillar,
The plurality of support plates are at least one of an erection piece that temporarily fixes a welded portion when the main pillars are joined together vertically and a gusset plate that permanently fixes the main pillars and the main beams. Including
The opening is octagonal and forms a space separated from the main pillar so as to avoid the support plate;
The structure construction method includes:
A supporting step of supporting the temporary beam connecting member on the permanent pillar via the supporting member and the supporting plate in a process in which the driving floor is raised along the permanent pillar;
The removal step of removing the temporary beam connecting member when the drive floor rises along the main pillar and reaches a predetermined floor of the structure;
A connecting step of connecting the plurality of main beams and the main columns;
A structure construction method characterized by comprising:

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