JPH0842153A - Erecting method of long size steel frame member and joining connection structure of steel frame beam - Google Patents

Abstract

PURPOSE:To simply transfer a steel frame member carried in a building to an open ceiling opening part in the building, and easily install the vertically suspended steel frame member in a horizontal posture. CONSTITUTION:A joining connection 12c on one end side of a steel frame beam 12 carried in a cargo handling place 13 of a building 10 is rotatably connected to a traveling carriage 19, and while suspending a joining connection 12d on the other end side of the steel frame beam 12 from above an open ceiling hoistway 15 by a tower crane 16, the traveling carriage 19 is moved to the open ceiling hoistway 15 side by a carriage driving device, and the direction of the steel frame beam 12 is changed in a vertically sispending condition in the open ceiling hoistway 15. When the steel frame beam 12 suspended in a vertical condition is installed in a condition of being extended between steel frame columns 11, the joining connection 12c of the steel frame beam 12 is rotatably connected to a bracket of the steel frame columns 11, and while delivering a wire rope 16b of the tower crane 16 in this condition, the steel frame beam 12 is tilted with a connecting part of the steel frame beam 12 and the bracket as a fulcrum.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a long steel member in a steel construction of a building and a structure of a joint of a steel beam temporarily provided between a pair of opposing steel columns, and particularly to a narrow space. The present invention relates to a method for constructing a long steel member suitable for efficient assembling using a lifting machine, and a joint structure for a steel beam that can be easily abutted on the steel column side.

[0002]

2. Description of the Related Art In steel construction of a building, a single material or a combination of single materials is used to construct steel members such as columns and beams.
A erection machine suitable for the size of the construction site, the structure / planar shape of the building, the weight of members, etc. is used, and in general, a truck crane, a tower crane, etc. are used. In addition, there are stacking methods and folding screen methods according to the planar shape of the building in the erection using such an erection machine.In both methods, the steel frame member is hoisted by the erection machine and the predetermined construction is performed. It is suspended and assembled at the embedded position. For example, in erection of columns and beams, first the column is hoisted by a erection machine in a vertical posture and suspended at a predetermined erection position, the column base is fastened with anchor bolts, and then the beam is erected horizontally by the erection machine. It is carried out by hoisting in a posture and hoisting it to a predetermined building position, and joining the joint portion of the beam and the column with a splice plate and a bolt or the like.

By the way, in the steel frame construction, if the construction site is large and a large site where a stockyard for materials and a loading space for trucks can be provided adjacent to the building, a steel frame member that can be hoisted in a horizontal posture. Even if it is a long beam, this beam can be directly lifted from the stockyard or the loading truck by a tower crane or the like. However, at construction sites where the site is small, such as steel construction sites in urban areas, where it is not possible to provide a stockyard or truck loading space, long beams should be installed horizontally from the outside of the building unless an adjacent road is used. There is a problem that it can not be lifted as it is, which disturbs traffic.

Therefore, conventionally, a steel frame member such as a beam is carried into a unloading place provided in a building together with a truck, and the steel frame member on the truck is lifted by a lifting machine such as an overhead crane installed at the unloading place. , The steel frame member was moved to the through-hole hoistway provided in the building, the steel frame member was lifted by the tower crane using this through-hole hoistway, and the steel frame member was hung at the built-in position to assemble the steel frame member.

[0005]

In such a conventional steel member erection method, when the blow-through hoistway is relatively large and the steel member is relatively short, the steel member is set horizontally. Although the inside of the blow-through hoistway can be hoisted by the tower crane in this state, in the case of a long steel frame member that cannot be hoisted in the horizontal state, it is necessary to vertically hoist the steel frame member. Therefore, conventionally, at the unloading position, one end of the steel frame member is hung by a hoisting machine such as an overhead crane, and the other end is hung by a tower crane to make two-point hoisting. While gradually moving, the other end of the steel frame member is gradually lifted by a tower crane so that the steel frame member that has been loaded to the unloading position in a horizontal position is raised and vertically lifted in the blow-through hoistway. It was However, since both ends of the steel frame member are suspended at two points by an overhead crane and a tower crane where it is difficult to visually recognize each other's existence, when trying to change the direction of the steel frame member vertically without interfering with the building in a narrow space,
There is a problem that the operation of linking the overhead crane and the tower crane is troublesome and the workability is poor, and considerable skill is required.

[0006] In the conventional steel frame construction, there is no problem when it is erected in a vertical posture like a steel column and erected as it is, but when it is erected in a horizontal posture like a steel beam, a vertical posture is used. It is necessary to provide a temporary gantry at the position where the steel frame beam that has been lifted up is mounted, temporarily suspend the steel frame beam on this temporary gantry, hang it horizontally, and then hang it up at a predetermined position for assembly. For this reason, there is a problem in that it is necessary to remove the temporary gantry after assembling the steel beam, and the work of re-suspending the steel beam horizontally becomes complicated and the work efficiency is poor. Furthermore, when suspending the steel beam on the temporary gantry with a tower crane and installing it horizontally between the steel beams that have already been installed, in order to align the positions of the ends of both steel beams. There was a problem that complicated operation of the tower crane was required, and the construction work took time.

The present invention has been made in view of the above circumstances, and an object of the present invention is to vertically change the direction of a steel frame member laterally carried into a building so that it can be easily installed in a blow-through hoistway in the building. An object of the present invention is to provide a method for constructing a long steel member that can be transferred. Another object of the present invention is to provide a joint structure for a steel beam, which enables the steel beam to be easily and efficiently assembled in a bracket projecting from a pair of steel columns in a short time.

[0008]

In order to achieve the above object, the present invention relates to a cargo handling field provided in a building, and a blow-through hoistway provided from the lower floor of the building to the rooftop in communication with the cargo handling field. A traveling carriage that travels on an orbit in a cargo handling field and a drive device that drives the traveling carriage to travel are installed, a structure erection hoist is installed on a building roof, and the traveling carriage is a lifting side of the long steel members. An end opposite to is rotatably supported and placed, and a hanging hook hung from the structure erection hoist through the blow-through hoistway is used to lift the long steel frame member. Is hung from the end portion of the structure via a hoisting jig, and the long steel frame member hung from the structure erection hoist and hung on the hanging hook is gradually lifted, and the traveling carriage is Move it in the lifting direction, raise it vertically in the blow-through hoistway, and The end portion of the long steel frame member rotatably supported by the traveling carriage is released, and the long steel frame member is vertically hung through the blow-through hoistway and conveyed to a predetermined attachment position for attachment. It is characterized by

Further, according to the present invention, the traveling carriage mounted on the end of the long steel frame member on the side opposite to the hoisting side is rotatably supported on the track laid in the hoisting direction. While moving in the lifting direction by being pulled by the drive device, the end of the long steel frame member on the opposite side to the lifting side is changed to a vertical direction in which it is lifted by the structure erection hoist. It is characterized by doing. Furthermore, in the present invention, the long steel frame member is a steel frame beam, and a bearing metal object for axial support is detachably attached to a bracket projecting from a steel frame column to which the steel frame beam is to be attached. The shaft frame to be attached is removably attached to the end of the steel beam to be joined with the bracket, the bearing frame and the shaft frame are pivotally attached, and the steel frame is suspended by the structure erection hoist. It is characterized in that the beam is joined to a bracket projecting from the steel frame column which is laid down with the spindle of the shaft metal as a starting point and which is opposed thereto.

Also, the present invention is a structure of a joint for a steel beam installed between brackets protruding from a steel column and a bracket projecting from the steel column, the structure being one of one of the steel beams. The end of the joining joint is a bolt that is joined to one of the brackets via a splice plate with the web being vertical, and the end of the other joining end is a splice with the web being a diagonal joint. It is characterized by comprising a joint portion bolted to the other bracket through a plate.

[0011]

[Operation] When carrying in and constructing long steel members on a small building site, a truck is used to transport the cargo handling area provided in the building and the stairwell that is in communication with the cargo handling area from the lower floor of the building to the rooftop. The long steel member is installed at the end opposite to the hoisting side, rotatably and pivotally mounted on a traveling carriage that is installed on a cargo handling field and travels on a track by a drive device. At the end of the hoisting side of the steel frame member, a hanging hook that suspends the blow-through hoistway from a structure erection hoist is hung by a hoisting jig and hung from the structure erection hoist. The long steel frame member hung on the hanging hook is gradually lifted, and the drive unit moves the traveling carriage so as to push it out in the lifting direction, and rotatably and pivotally mounts it on the traveling carriage. Since it is variable, it can be changed according to the lifting angle, and the long steel members are horizontal. Placed al gradual transition to the vertical position blow hoistway stand filed in, to release the end portion of the rotatably supported by said elongated steel member to the traveling carriage, further,
Since the inside of the blow-through hoistway can be lifted and conveyed to a predetermined mounting position, the long steel frame member can be safely raised up when shifting from the horizontal position to the vertical direction as in the conventional case.

According to the second aspect of the present invention, the traveling carriage installed in the cargo handling area rolls on the track and travels, and one end of the long steel frame member is rotatably supported by the traveling carriage and placed. When the other end of the long steel frame member is hoisted in the hoisting direction with a structure erection hoist, the driving device causes the long steel frame member placed on the traveling carriage to be pushed out in the hoisting direction to swing. The long end of the long steel frame member, which runs stably on the track in the direction of movement without being subjected to hoisting and is hoisted by a structural erection hoist, has the position of the hanging hook in relation to the hoisting with respect to the hoistway. It is always in a fixed vertical position, and the lifting machine for structure erection is easy to operate, and the long steel frame members are safely and quickly erected in a minimum space in the blow-through hoistway that communicates with the load handling area. Will be moved to work.

According to the third aspect, one bracket protruding from the steel frame column to which the long steel beam is to be attached,
2. The erection according to claim 1, wherein the bearing hardware supporting the shaft is removably mounted, and the shaft hardware engaged with the bearing hardware is removably mounted on an end portion of the steel frame beam joined to the bracket. The steel beam transported to a predetermined mounting position by the method is vertically suspended, and is pivotally attached by a shaft metal member mounted on the steel beam and a bearing metal member mounted on one bracket protruding from the steel column. Therefore, the steel beam can lie down from the supporting shaft of the shaft metal and engage with the bracket protruding from the opposing steel column, and it can be repositioned by temporarily placing it horizontally from the vertical position on the gantry as before. It is installed without the need for complicated work.

According to the fourth aspect of the present invention, the bracket projecting from the steel column and the joint of the steel beam bridged between the brackets projecting from the steel column that are built opposite to each other are a joint part in which the web is vertical. Since the web is formed at the joint that is a diagonal joint, the steel beam that is installed between the bracket that protrudes from the steel column and the bracket that protrudes from the steel column is attached vertically to the joint that is formed vertically. Tentatively fastened with bolts through a rectangular Sblythe plate in the direction,
By laying down the bolt as a shaft, contacting the diagonally formed joint and temporarily fastening it with a bolt through a splice plate that supports diagonal jointing, the mounting position can be easily adjusted and the mounting work can be done quickly. Done. In addition, the temporary fastening is performed with the required number of bolts, and the braid plate is fastened to the bracket or the steel beam with all the bolts before the final fastening.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic cross-sectional view of a building for explaining how to construct a steel structure by the method of the present invention, and FIG. 2 is a schematic cross-sectional view of the building seen from the direction of arrow A in FIG. In FIGS. 1 and 2, 10 is a building having a steel frame structure, 11 is a steel frame column, 12 is a steel frame beam, and the steel frame beam 12 is a steel frame column 1 that is built oppositely.
The steel columns 11 and the steel beams 12 are installed between the brackets 21 and 2101 which are respectively provided to project from the first structure, and the steel columns 11 and the steel beams 12 are constructed by a laminated construction method. As shown in FIG. 3, the steel beam 12 includes upper and lower flanges 12a and a web 12b, and shaft holes 12e and 12f are formed in the webs 12b of the joints 12c and 12d at both ends of the steel beam 12, respectively. ing. As shown in FIG. 3, the brackets 21 and 2101 include upper and lower flanges 21a and 2101a and webs 21b and 2101b.
The tip of 01 is formed in a joint 21c with the steel beam 12, 34 in FIG. 3 is a splice plate (corresponding to a joining member) for joining the steel beam 12 to the steel column 11 side, and 35 is a bolt / nut. Show.

As shown in FIGS. 1 and 2, in the building 10, a cargo handling space 13 for handling steel frame members and materials is formed by utilizing a part of the ground floor and the second floor.
Steel members such as a long steel beam 12 and a steel column 11 are carried into the cargo handling field 13 together with a truck 14 such as a pole trailer that carries the steel members. Further, in the building 10, the building 1 is communicated with a portion of the cargo handling area 13 near the doorway.
A vertical through hole hoistway 15 is formed,
To suspend the steel frame members in the blow-through hoistway 15,
Tower crane 1 protrudingly installed above the building 10
6 is used, in FIG. 1 and FIG. 2, 30 is a frame scaffolding of the building 10, 31 is a vertical net that covers the perimeter of the stairwell, 32 is a high stage, and 33 is a horizontal net that covers the lower surface of the high stage 32. .

A ceiling crane 17 for loading and unloading is installed horizontally on the ceiling of the loading and unloading area 13. Further, on the floor surface 13a of the loading and unloading area 13, as shown in FIGS. 4, 6 and 7. A traveling rail 18 is extended from the back of the cargo handling field 13 toward the blow-through hoistway 15, and a traveling carriage 19 supporting the lower end portion of the steel frame member in a suspended state can travel on the traveling rail 18. It is installed in. As shown in FIG. 5, the traveling carriage 19 includes a base 19a and wheels 19 that support the base 19a so that the base 19a can travel.
b and a pair of support plates 19 erected from a base 19a located at a distance in the direction orthogonal to the traveling direction of the traveling carriage 19.
c, a shaft rod 19e is detachably hung between the upper part of the support plate 19c through a shaft hole 19d. The wheel 19b is made of steel, hard rubber, or the like, as shown in FIG.
Inside 24 is a traveling carriage 19 to the rear side of the cargo handling area 13.
5 shows a stopper that restricts the movement of
Reference character f denotes a reinforcing plate that is erected from the base 19a and is attached to the outer surface of the support plate 19c. As shown in FIGS. 4 and 7, the traveling vehicle 19 is driven by a traveling drive device 1901, and X in FIGS. 4 and 7 indicates the traveling direction of the traveling vehicle 19. The traveling drive device 1901 is arranged on the floor surface 13a on the side opposite to the traveling direction X with respect to the traveling rail 18, and the electric hoist 1 for paying out and winding the cord 1903.
902 and a pulley 1904 rotatably disposed on the floor 13a on the traveling direction X side of the traveling rail 18, and the cord 1 extended from the electric hoist 1902.
903 is wound around a pulley 1904, and the tip of the rope 1903 is connected to a locking ring 19g of a base 19a of the traveling carriage 19, as shown in FIG.

Next, the configuration of FIGS. 8 to 17 will be described. As shown in FIG. 3, FIGS. 8 and 9 are used for suspending the long steel beam 12 by the tower crane 16 in a vertically suspended state and in a suspended state between the steel columns 11 at the installed position. A plan view and a side view of the bearing fitting, FIG.
12 are a plan view, a side view, and a plan view of the shaft rod of the shaft fitting.

In FIGS. 8 and 9, the bearing fitting 20 is
The flange 2 is wider than the flange 21a of the bracket 21.
A rectangular mounting plate 201 having a bolt insertion hole 201a for mounting on an edge of a long side of 1a, and a pair of plate-shaped members that are fixed to the mounting plate 201 so as to be separated by a predetermined distance in parallel and project obliquely upward. The bearing member 202 and a reinforcing member 203 that reinforces the space between the tips of the bearing members 202 are formed. A bearing groove 202a for supporting the shaft rod is cut out at the tips of the bearing members 202. . This bearing fitting 20 is shown in FIG.
As shown in FIG. 15, the bracket 21 is detachably attached to the upper flange 21a of the bracket 21 near the joint 21c. The mounting of the bearing fitting 20 on the upper flange 21a is as shown in FIG. The mounting plate 201 is attached to the upper surface of the upper flange 21a, and the bolt insertion hole 26a for mounting is provided on one side of the lower surface of the flange 21a.
This is performed by abutting one contact plate 26 and inserting a bolt 29 between the bolt insertion hole 201a of the edge of the mounting plate 201 and the bolt insertion hole 26a of the contact plate 26 and fastening the nut 28 to the bolt 29. In order to prevent the steel beam 12 hoisted by the tower crane 16 from falling off when the bearing material 202 and the bearing groove 202a are falling, as shown in FIG. It is formed to be inclined so as to project outward from the. FIG. 17 shows a joint between the bracket 21 and the steel beam 12, a splice sleeve (not shown) arranged across both flanges 21a, 12a, and a bolt nut 29.
28 is another example of the attachment to the upper flange 21a of the bearing fitting 20, which is adopted in the case of performing by 28. In this example, the width of the mounting plate 201 is formed to match the width of the flange 21a, and the mounting plate 2011 , The splice sleeve, and the bearing fitting 20 with the bolts 29 and nuts 28 inserted through the respective bolt insertion holes 201a of the upper flange 21a.
Fix to 1a.

In FIGS. 10 to 12, the shaft metal fitting 22 is
Wider flange 12a than flange 12a of steel beam 12
A rectangular mounting plate 221 having a bolt insertion hole 221a for mounting at the edge of its long side, and a predetermined space (space larger than the size between both bearing members 202 of the bearing fitting 20) on this mounting plate 221. And a pair of plate members 222 that are fixed in parallel and project upward obliquely, through holes 222a are formed in the upper portions of both plate members 222, and a shaft rod 224 is formed in both through holes 222a.
Is inserted through and one of them is fixed by a nut 223. As shown in FIGS. 14 and 15, the shaft metal fitting 22 includes an upper flange 12a of the steel beam 12 on the joint 12c side.
As shown in FIG. 18, the shaft metal fitting 22 is mounted on the upper flange 12a of the shaft fitting 22 in a detachable manner.
The mounting plate 221 is attached to the upper surface of the upper flange 12a, the two contact plates 26 are attached to the lower surface of the upper flange 12a, and the bolt insertion holes 2 located outside the upper flange 21a.
Insert the bolt 29 between 01a and 26a.
It is performed by fastening the nut 28 to the. In addition, FIG.
Corresponding to another embodiment of mounting the bearing fitting 20 on the upper flange 21a, the width corresponding to the mounting plate 221 is formed to match the width of the flange 12a, and the mounting plate 201, the splice sleeve, and the upper flange 12a are formed. Of the shaft fitting 2 with the bolts 29 and nuts 28 inserted through the respective bolt insertion holes 221a of
2 may be fixed to the upper flange 12a (not shown). The shaft fitting 22 configured in this way is shown in FIG.
As shown by the dotted line, by inserting the shaft rod 224 into the bearing groove 202a, it is engaged with the bearing fitting 20 so as not to fall off. Further, in the method of the present invention, the means for pivotally supporting the steel beam 12 on the steel column 11 is not limited to the bearing fitting 20 and the shaft fitting 22 shown in the above embodiment, and various means can be used without departing from the scope described in the claims. Deformation is possible. For example,
As shown in FIG. 19, the joint 21c of the bracket 21
Joint 1 between the upper flange 21a and the steel beam 12
At the upper flange 12a on the 2c side, the contact plate 26 and the bolt 2
9 and the nut 28 to mount the bearing fittings 36 and 37 respectively, and the bearing fittings 36 and 37 are pivotally attached to the mounting plates 361 and 371 by shaft rods 363 that pass through the pair of plate members 362 and 372, respectively. The bearing fittings 36 and 37 can be reliably connected by the shaft rod 363 so as not to fall off.

Next, both joints 12 of the steel beam 12
The joining joint structure of the present invention which is applied to the joining joints 21c and 2101c of the brackets 12 and 1 and c and 12d will be described. As shown in FIG. 3, the joint port 12c on one end side of the steel beam 12 is formed by vertically cutting the web 12b, and the joint port 12d on the other end side is formed by the web 12b.
It is formed by obliquely cutting. The joint 21c of the bracket 21 is formed by vertically cutting the web 21b, and the joint 2110 of the bracket 2101 is formed.
The c is formed by obliquely cutting the web 2101b so as to correspond to the joining port 12d.

Next, how to construct the steel frame member according to this embodiment will be described. First, the construction of the long steel beam 12 will be described. In this case, as shown in FIG.
4 into the building 10 and join the steel beams 12
Carry in horizontally from the c side to the cargo handling field 13. Next, the steel beam 12 on the truck 14 is unloaded by the overhead crane 17, the joint 12c of the steel beam 12 is rotatably connected to the traveling carriage 19, and the other end is placed on a sleeper (not shown). Further, the joint 16d and the hook 16c suspended from the tip of the boom 16a of the tower crane 16 through the wire rope 16b in the blow-through hoistway 15 and the hook 16c.
Prepare to hang up with the hanging tool 16f hooked on c. As shown in FIG. 6, the steel frame beam 12 is connected to the traveling carriage 19 by inserting the shaft rod 19e into the shaft hole 12e, and inserting the both ends of the shaft rod 19e into the shaft hole 19d. As shown in FIG. 6, the steel beam 12 and the hook 16c are connected to each other by being rotatably supported by the shafts 19c, and the shaft hole 12f formed in the web 12b on the joining port 12d side is connected to the shaft hole 12f. The shaft 25 of the hanging tool 16f is inserted and worn. At the same time, the bearing fitting 20 is attached to the upper flange 21a of the bracket 21 protruding from the steel frame pillar 11,
The shaft fitting 22 is attached to the upper flange 12a of the steel beam 12 on the joint 12c side, and the preparation for lifting is completed.

Next, the wire rope 16b of the tower crane 16 is wound up to gradually lift the other end of the steel beam 12, and in synchronization with this, the traveling drive device 19
The electric hoist 1902 of 01 winds up the rope 1903 and blows through the traveling carriage 19 via the pulley 1904.
The vehicle is towed and run in the running direction X so as to be pushed out to 5. As a result, the steel frame beam 12 tilts around the shaft rod 19e as the traveling carriage 19 moves, and eventually the steel frame beam 12 extends from the horizontal position (a) as shown in FIG. , And the direction is changed to a position (B) that extends in the vertical direction in the blow-through hoistway 15. Then, if the steel beam 12 is turned to the position B extending vertically in the blow-through hoistway 15, the shaft 19e of the traveling carriage 19 is moved to the web 1
2b to separate the steel beam 12 from the traveling carriage 19,
By further winding the wire rope 16b of the tower crane 16, the steel beam 12 is lifted up to the building level position (C) shown by the chain double-dashed line in FIG.

Next, the boom 16a of the tower crane 16
Is operated to move the steel beam 12 to the position (d) shown by the solid line in FIG. 2, and the shaft fitting 22 of the joint 12c is moved to the bearing fitting 2
Close to zero. Next, the steel beam 12 is gradually lowered by the tower crane 16 as shown by an arrow B in FIG.
The shaft rod 224 of the shaft fitting 22 is pivotally attached to the notch 202a of the bearing fitting 20 attached to the bracket 21. Then, as shown in FIGS. 2 and 13, the boom 16a and the wire rope 16b of the tower crane 16 are moved to move the shaft rod 224.
The steel beam 12 is laid down in the direction of arrow C with the axis as the axis. As a result, the steel beam 12 reaches the erection position (g) from the standing position (e) through the inclined position (f) and is horizontally erected between the steel columns 11, and in this state, the joint of the steel beam 12 is joined. 12
d contacts the joint 2101c of the bracket 2101.

Next, the web 12 near the both joints 12c and 12d of the steel beam 12 horizontally installed between the steel columns 11.
b locations and brackets 21, 21 protruding from the steel column 11.
The web 21 near the two joint joints 21c and 2101c of 01
As shown in FIG. 3, the parts b, 2101b are joined by a splice plate 34 and bolts and nuts 35,
The bearing fitting 20 and the shaft fitting 22 are removed from the bracket 21 and the steel beam 12.

In this embodiment, steel members such as the steel columns 11 and the steel beams 12 carried in together with the truck 14 into the cargo handling field 13 in the building 10 are lifted by the overhead crane 17 and moved onto the traveling carriage 19, and the steel frame One end of the member is rotatably connected to the traveling carriage 19 by spanning a shaft rod 19e through the shaft hole 19d of the traveling carriage 19, and the other end of the steel frame member is lifted from above the blow-through hoistway 15 by a tower crane 16. Since the traveling carriage 19 is moved to the side of the blow-through hoistway 15 so that the steel member is erected inside the blow-through hoistway 15, the load handling field 13 and the blow-through hoistway 15 are arranged.
The horizontal steel frame member can be vertically turned in the narrow space of the vertical space, and the steel frame member blows through the hoistway 15
Can be safely and easily imported. As a result, it becomes unnecessary to perform an unstable linking operation between the tower crane and the overhead crane as in the related art, and it is possible to improve the lifting work efficiency of the long steel member in the narrow space in the building. Further, since the traveling carriage 19 is towed and run by the traveling drive device 1901 in synchronization with the lifting of the steel members by the tower crane 16, the traveling carriage 19 and the steel beam 12 are smoothly moved to the blow-through hoistway 15 side. The steel beam 12 can be raised without interfering with the building 10.

Further, in the present embodiment, when the steel beam 12 hoisted vertically by the tower crane 16 in the blow-through hoistway 15 of the building 10 is laid horizontally between the steel columns 11, the jointing of the steel beam 12 is performed. The shaft rod 224 of the shaft fitting 22 attached to the port 12c side is attached to the bracket 2 of the steel column 11.
The notch 202a of the bearing fitting 20 attached to No. 1 was engaged to pivotally support the steel beam 12 portion on the joint 12c side to the bracket 21 and the boom 16a of the tower crane 16 was attached to the bracket 2101. Steel column 11
While falling in the direction, the steel beam 1 with the shaft 224 as the fulcrum
Since 2 can be horizontally tilted to the side of the steel column 11 so that the steel beam 12 can be set in the passing state, it is possible to easily assemble the steel beam 12 while vertically suspending it by the tower crane 16 without requiring a horizontal rehanging operation. it can.
Along with this, the conventional temporary gantry for re-suspending horizontally becomes unnecessary, and the temporary construction cost can be greatly reduced and the work efficiency of the erection can be improved.

Further, in this embodiment, the joint 12d of the steel beam 12 and the corresponding bracket 2101 are provided.
Since the joining joint 2101c of No. 2 is formed obliquely, both joining joints 12d and 21 in a suspended state by the tower crane 16 are formed.
The positioning of 01c becomes easy, and the joining work by the splice plate 34 and the bolts and nuts 35 becomes easy. Further, in the present embodiment, the bearing fitting 20 and the shaft fitting 22 are attached to the bracket 21 and the steel beam 12, respectively, and the bracket 21 and the steel beam 12 are pivotally attached via the bearing fitting 20 and the shaft fitting 22. Therefore, after the bracket 21 and the steel frame beam 12 are joined by the splice plate 34 and the bolts and nuts 35, the bearing fitting 20 and the shaft fitting 22 can be diverted to the steel frame beam 12 to be installed next and the bracket 21 to be installed. it can.

In the above embodiment, as a method of constructing the steel frame beam, the case where the steel frame member is lifted through the blow-through hoistway 15 and installed horizontally in the building 10 has been described.
The method of the present invention is not limited to this, and can be applied to a case where the tower crane 16 is used to lift the building 10 from the outside. Further, in the above-described embodiment, the joining joint structure of the present invention is rotatably connected to one steel joint column 11 side of one joint joint 12c, and is laid down from the standing state so as to be horizontal between the pair of steel joint columns 11. Although the case of applying it to the steel beam 12 to be built in has been described, the structure of the present invention is also applicable to the case of suspending and installing between the steel beams 11 of the installation destination in a horizontal posture.
That is, as shown in FIG.
The splice plate 34 is fastened to the web 21b near the 1c with the bolts and nuts 35, and the splice plate 34 is temporarily fastened to the web 12b on the joint 12c side of the steel beam 12 with a set of the bolts and nuts 35a. However, the steel frame beam 12 may be pivotally attached to the bracket 21 so as to be rotatable around the bolt / nut 35a, or the splice plate 34 may be temporarily fastened to the bracket 21 side by a set of bolts / nuts 35a. . In addition, joining joint 1
After the 2d is abutted with the joint 2101c, the sub-rice plate 34 is permanently fastened to the steel beam 12 or the bracket 21 by the bolts and nuts 35.

[0030]

As described above, according to the present invention, in the cargo handling space provided in the building, and in the stairwell hoistway provided from the lower floor of the building to the roof in communication with the cargo handling space,
A traveling carriage that travels on an orbit in the cargo handling area and a drive device that drives the traveling carriage to travel are installed, a structure erection hoist is installed on a building roof, and the long steel frame members are lifted on the traveling carriage. The end opposite to the side is rotatably rotatably supported and placed, and a hanging hook hung from the structure erection hoist through the blow-through hoistway is used to hoist the long steel member. Is hung from a side end through a hanging jig, and the long steel frame member hung from the structure erection hoist and hung on the hanging hook is gradually lifted, and the traveling cart Move it in the lifting direction and stand upright in the blow-through hoistway,
The end portion of the long steel frame member rotatably supported by the traveling carriage is released, and the long steel frame member is vertically hung through the blow-through hoistway to be conveyed and attached to a predetermined attachment position. Therefore, the long steel frame member can be safely raised when the long steel frame member laterally loaded is moved from the horizontal position to the vertical direction.

Further, according to the present invention, there is provided a structure of a joint terminal of a steel beam which is installed between a bracket projecting from the steel column and a bracket projecting from the steel column, which is built so as to face the bracket. One end of the joining joint is a joint portion which is bolted to one of the brackets via a splice plate with the web being vertical, and the other joining end is an oblique joint portion of the web. Since the structure is composed of the joint portion which is bolted to the other bracket through the sub-blythe plate, the mounting position can be easily aligned and the mounting work can be performed quickly.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a building for explaining how to construct a steel frame construction by the method of the present invention.

FIG. 2 is a schematic cross-sectional view of the building as seen from the direction of arrow A in FIG.

FIG. 3 is a side view showing a joint structure for a steel beam according to the present invention.

FIG. 4 is a front view of a load handling field and a blow-through hoistway in the present embodiment.

FIG. 5 is a cross-sectional view of a traveling vehicle according to the present embodiment.

FIG. 6 is an enlarged front view of the cargo handling area in this embodiment.

FIG. 7 is a plan view of the cargo handling area in this embodiment.

FIG. 8 is a plan view of a bearing bracket for steel beam pivot support according to the present embodiment.

FIG. 9 is a side view of a bearing bracket for steel beam pivot support according to the present embodiment.

FIG. 10 is a plan view of a steel-frame beam pivot support shaft fitting in the present embodiment.

FIG. 11 is a side view of the steel-frame beam pivot support shaft fitting in the present embodiment.

FIG. 12 is a plan view of a steel beam pivot support shaft in the present embodiment.

FIG. 13 is an explanatory diagram showing a state in which a steel beam is suspended by a tower crane between the steel columns at a built-up position in a spanning state in the present embodiment.

FIG. 14 is an explanatory view showing a state where the steel frame beam is pivotally supported on the steel frame column by the bearing fitting and the shaft fitting of the present embodiment.

15 is a cross-sectional view taken along the arrow D in FIG.

FIG. 16 is an explanatory diagram showing an example of attachment of a bearing fitting to a beam joint in the present embodiment.

FIG. 17 is an explanatory view showing another example of attachment of the bearing fitting to the beam joint portion in the present embodiment.

FIG. 18 is an explanatory diagram showing an example of attachment of a shaft fitting to a steel beam in the present embodiment.

FIG. 19 is an explanatory diagram showing another example of attachment of a steel frame column to a steel beam.

[Explanation of symbols]

 10 Buildings 11 Steel Columns 12 Steel Beams 13 Loading Spaces 15 Passage Hoistways 16 Tower Cranes (Hoisting Machines for Structure Construction) 17 Overhead Cranes 18 Traveling Rails (Tracks) 19 Traveling Bogies 1901 Traveling Drives 20 Bearing Brackets 22 Shaft Brackets 34 Subrice plate 35 bolts

Claims (4)

[Claims] 1. In a cargo handling field provided in a building and a stairwell that is provided in communication with the cargo handling field from a lower floor of the building to a rooftop, a traveling carriage that travels on a track to the cargo handling ground and the traveling carriage are provided. A drive device for driving the vehicle is installed, a structure erection hoist is installed on the roof of the building, and the end of the long steel member opposite to the lifting side is rotatably supported on the traveling carriage. Placed, hanging a hanging hook hung from the structure erection hoisting machine through the blow-through hoistway at the end on the hoisting side of the long steel frame member via a hanging jig, While gradually lifting the long steel frame member suspended from the structure erection hoist and hung and attached to the suspension hook,
The traveling carriage is moved in the lifting direction to stand upright in the blow-through hoistway, and the end of the long steel frame member rotatably supported by the traveling carriage is released, and the long steel frame member is A method of erection of a long steel frame member, characterized in that it is hoisted vertically through the blow-through hoistway and transported to a predetermined mounting position for mounting. 2. The traveling carriage mounted with the end of the long steel member opposite to the hoisting side rotatably supported, travels on the track laid in the hoisting direction, While being pulled by the drive device to move in the hoisting direction, the end of the long steel member opposite to the hoisting side is turned to the vertical direction for hoisting by the structure erection hoist. The method for constructing a long steel frame member according to claim 1. 3. The elongated steel member is a steel frame beam, and a bearing metal object for axial support is detachably attached to a bracket projecting from a steel frame column to which the steel frame beam is to be attached, and is attached to the bearing metal object. The steel beam that is detachably attached to the end of the steel beam that joins the bracket to the bracket, pivotally attaches the bearing metal and the metal shaft, and is hung by the structural erection hoist. The method of erection of a long steel frame member according to claim 1 or 2, characterized in that the above is joined to a bracket projecting downward from the supporting shaft of the shaft metal object and protruding from the opposing steel frame column. 4. A structure of a joint of steel beams installed between brackets projecting from a steel column and a bracket projecting from the bracket, the structure of the joint of one of the steel beams. The end portion is a joint portion which is bolted to one of the brackets through the splice plate with the web being vertical, and the end portion of the other joint joint is a diagonal joint portion of the web and the splice plate is interposed. And a joint portion that is bolted to the other of the brackets.