JP2542943B2 - Construction method of outer wall board and its mounting structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to an outer wall board construction method and its mounting structure when an outer wall board such as a PC board is mounted separately from the body.

“Prior Art” Conventionally, when a PC plate is installed as an outer wall plate apart from the frame, a beam 3 is decked on the tip of a cantilever 2 protruding from the frame 1 as shown in FIGS. 5 and 6. It was often installed in the direction and received the PC board 4 on this beam 3. When the concrete C is cast on the upper surface of the cantilever 2 to form the slab 5, the concrete stopper 6 is provided at the tip so that the concrete C does not flow from the tip, and the placing work is performed. Was there.

[Problems to be Solved by the Invention] However, in the above conventional method, it is necessary to attach the beam 3 to the tip of the cantilever 2.
Therefore, it was necessary to apply concrete stoppers, and the form of the tip slab was required when placing the concrete, which caused an increase in construction costs, and it was not possible to reduce costs and rationalize construction.

Furthermore, due to the above points, the work at the tip of the cantilever 2 increases, resulting in a decrease in work safety.
However, the existence of the beam 3 at the tip makes it difficult to fit the equipment.

The present invention has been made in view of the above circumstances, and provides an outer wall board construction method and a structure thereof that can facilitate cost reduction and rationalization of construction by facilitating attachment of the outer wall board. Has an aim.

"Means for Solving the Problem" A method for constructing an outer wall plate according to the present invention is to use an omni truss, which is a combination of an upper chord member, a lower chord member, and a diagonal member, as a part of a main bar and at the one end edge portion thereof. Using an omniar floorboard made of concrete with a bank extending along, between the cantilever beams of the skeleton to which the outer wall board should be attached, the omnier floor board, with the bank above and the outer wall board mounting side. It is arranged so that the omnier floor board receives the load of the outer wall board.

Further, the mounting structure of the outer wall plate according to the present invention, upper chord material,
An omniar floorboard made of concrete that uses an omni truss that is a combination of lower chord members and diagonal members as part of the main bar and has a bank extending along one edge at one edge to attach the outer wall Between the cantilever beams of the power frame, the bank is laid on the upper side and the outer wall plate mounting side, and a convex portion is provided on the inner surface of the outer wall plate, and the convex portion is placed on the bank of the Omnia floor plate. The outer wall plate is attached to the ends of the cantilever.

[Operation] The present invention is designed so that, instead of attaching the beam which receives the load of the outer wall plate to each other of the ends of the cantilever, the load is applied to the outer wall plate between the cantilever beams at one end edge portion. By placing an omniar floorboard made of concrete with a bank extending along it so that the bank is on the upper side and the outer wall plate mounting side, the form of the tip slab and concrete stop during concrete pouring can be done. It becomes unnecessary. Furthermore, by providing a convex portion on the inner surface of the outer wall plate and placing the convex portion on the end portion of the Omnia floor plate, the load receiving member of the outer wall plate can be simplified.

[Examples] Examples of the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment of the present invention. In these drawings, reference numeral 1 is a frame, reference numeral 2 is a cantilever, and reference numeral 4 is a PC plate which is an outer wall plate.

As shown in FIG. 2, the body 1 is constructed as a whole by assembling columns 7 and beams 8 that are installed between the columns 7,
A cantilever beam 2 projects outward from an intersection 9 of each pillar 7 and the beam 8 located at the farthest portion of the frame 1.
Then, the PC plate 4 is attached to the ends of the cantilever 2.
Can be attached.

The cantilever 2 has a general part for mounting the PC plate 4 and a load receiving part for mounting the PC plate 4 and also receiving a load. FIG. 1 mainly shows the load receiving part. It is a thing.

As shown in Fig. 1, PC is placed between the upper surfaces of the cantilever 2.
An omni floor plate 10 for receiving the load of the plate 4 is laid.

As shown in Fig. 1, the Omnia floorboard 10 is made of upper chord material.
This is a concrete precast plate that uses an omni truss 14 that is a combination of 11, a lower chord member 12 and a diagonal member 13 as part of the main bar. The omnier floorboard 10 has a size that covers almost the entire cantilever 2 from the tip of the cantilever 2, and a convex bank 15 is provided on the tip edge of the omnier floorboard 10. It is formed extending along. Also, this bank
Reinforcing reinforcing bars 16 for embedding rigidity are embedded in 15 so as to extend in the deck direction.

The PC board 4 is a precast member preassembled in a factory or the like in advance, and the PC board 4 has a predetermined height on the inner surface thereof.
A convex portion 17 is formed to transmit the load to the omni floor plate 10, and a base end of a leveling bolt 18 that abuts the upper surface of the bank 15 is embedded in the lower surface of the convex portion 17 so as to be movable back and forth.

Then, the Omnia floor board 10 is bridged between the cantilever beams 2 and 2 of the frame 1 to which the PC board 4 is to be mounted, with the bank 15 on the upper side and the PC board 4 mounting side, and the convex portion 17 of the PC board 4 Is mounted on the bank 15 of the omnier floor board 10, and the PC board 4 is attached to the ends of the cantilever beams 2, 2.

 The mounting structure of the PC board 4 is as follows.

A horizontal part 20 of an L-shaped plate 20 holding a mounting bolt 19 for mounting the PC plate 4 on the lower surface of the tip of the cantilever 2.
The a is fixed by welding, and the vertical portion 20b of the plate 20 has a bolt hole 21 through which the mounting bolt 19 is inserted. On the other hand, on the inner surface of the PC plate 4 attached to the tip of the cantilever 2, a bolt receiver 23 having a screw groove 22 for screwing the attachment bolt 19 is embedded at a position corresponding to the bolt hole 21. There is. The bolt receiver 23 is directly fixed to an anchor bar 24 embedded in the PC board 4. In addition, this bolt receiver
The required distance H between the position of 23 and the position of the leveling bolt 18 (the lower surface of the convex portion 17) is adjusted at the time of design according to the height of the bank 15 of the omnier plate 10.

Therefore, the tips of the mounting bolts 19 inserted into the bolt holes 21 from the outside of the plate 20 through the washers 25 are attached to the plate 20.
The PC plate 4 is attached to the cantilever 2 at this portion by being screwed into the screw groove 22 of the bolt receiver 23 via the elastic rubber 26 between the PC plate 4 and the PC plate 4. Then, the leveling bolt on the lower surface of the convex portion 17 of the PC board 4 described above.
Adjust the length of 18 and attach the tip of the leveling bolt 18 to the bank 15
The load of the PC board 4 is transmitted to the Omnia floor board 10 through the leveling bolt 18 and the bank 15 by this, and the CP is set by the leveling bolt 18 and the mounting bolt 19.
The plate 4 is held vertically and fixed.

Also, the omni floor board is located near the convex portion 17 of the PC board 4.
The horizontal portion 27a of the L-shaped plate 27 is fixed to the bank 15 of the ten, and the pulling bolt 28 and the pushing bolt 29 for adjusting the orientation of the plate 27 with respect to the vertical surface are inserted into the vertical portion 27b of the plate 27. Each bolt hole 30 and 31 that penetrates through. Further, on the inner surface of the PC plate 4 corresponding to the bolt hole 30 of the pull bolt 28, a bolt receiver 33 having a screw groove 32 for screwing the pull bolt 28 is embedded in a manner fixed to the anchor bar 24. Has been done.

Therefore, the tip of the pull bolt 28, which is inserted from the outside of the plate 27 into the bolt hole 30 through the washer 25, receives the bolt.
By being screwed into the screwing groove 32 of 33, the PC board 4 is attached to the bank 15 of the omnier floor board 10 in this portion so as to be attracted thereto. Further, the push bolt 29 is screwed into the nut 34 fixed in the bolt hole 31 of the plate 27, and the tip of the push bolt 29 pushes the inner surface of the PC plate 4, whereby the orientation of the PC plate 4 with respect to the vertical surface is adjusted. ing.

As described above, in the PC board 4 of the present embodiment, in the cantilever 2 of the load receiving portion, the mounting bolt 20 and the pulling bolt 20 are attached so that the weight of the cantilever 2 is received by the omnier floor board 10 through the leveling bolt 18 of the convex portion 17. The cantilever 2 is attached to the cantilever 2 by the bolt 28, and the cantilever 2 in the general portion is simply attached.

Next, the procedure of attaching and installing the PC board 4 and its operation will be described.

First, the omnier floor boards 10 are bridged in the deck direction between the cantilever beams 2 on each floor of the frame 1 with the bank 15 on the upper side and the PC board 4 mounting side. And each PC by crane
The plate 4 is lifted up and brought close to the tip of each cantilever 2 on a predetermined floor to be attached, and an operator from the tip of each cantilever 2 or work gondola attaches the PC plate 4 to each cantilever 2 with the mounting bolt 20 and the pull bolt 28. On the other hand, the level adjustment bolt 18 and the push bolt 29 adjust the level and the orientation of the PC board 4 on the cantilever 2 of the load receiving portion. After adjusting the level, mortar is spread around the leveling bolt 18 on the upper surface of the bank 15.

After completing the installation of the specified PC board 4 in this way,
A deck plate or the like is laid between the beams 8 and concrete is placed on them together with the omni floor plate 10 to form the slab S of each floor.

In this case, the bank 15 of the Omnia floorboard 10 serves as a concrete stop. Further, in the cantilever 2, the omni floor plate 10 functions as a concrete formwork, so that a formwork for forming a slab in this part is unnecessary.

According to the method of constructing the outer wall board in the present embodiment, the omnier floor board 10 is used for receiving the load of the PC board 4 without using the tip beam as in the conventional case.
The advantages of can be fully exerted. In other words, using the bank 15 eliminates the need for concrete stop,
A mold for the tip slab is unnecessary, and further, a metal for receiving the load of the PC plate 4 is not necessary. As described above, since each construction jig is unnecessary, the construction cost can be reduced.

Furthermore, since the work at the tip of the cantilever 2 is reduced,
In addition to improving safety, the use of the Omnia floorboard 10 reduces the number of construction steps, which can streamline the construction and shorten the construction period.

Further, according to the mounting structure of the outer wall plate in the present embodiment,
As a result of the elimination of the tip beam, there is an advantage that the installation of the advanced equipment becomes better and the degree of freedom of design plan increases.

"Effects of the Invention" As described in detail above, the outer wall board construction method of the present invention uses the omni truss combining the upper chord member, the lower chord member and the diagonal member as a part of the main bar and at the one end edge portion. A concrete omnier floorboard having a bank extending along the one edge is used, and the omnier floorboard is located between the cantilever beams of the frame to which the outer wallboard is to be attached, and the bank is on the upper side and the outer wall board. Since the omni floor plate receives the load of the outer wall plate, the omni floor plate is subjected to the load, so that the slab forming work can be simplified and the cost can be reduced. This reduces the work in the field, which can streamline the construction and shorten the construction period.

According to the outer wall plate mounting structure of the present invention, the upper chord member,
An omniar floorboard made of concrete that uses an omni truss that is a combination of lower chord members and diagonal members as part of the main bar and has a bank extending along one edge at one edge to attach the outer wall Between the cantilever beams of the power frame, the bank is laid on the upper side and the outer wall plate mounting side, and a convex portion is provided on the inner surface of the outer wall plate, and the convex portion is placed on the bank of the Omnia floor plate. Since the outer wall plate is attached to the ends of the cantilever, the slab forming work and the like can be simplified and the cost can be reduced. In addition, the structure can be simplified and the outer wall plate can be simplified. Can be easily attached, and further, the effects such as the good accommodation of equipment and the like at the tip of the cantilever can be achieved.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention,
FIG. 1 is a mounting view of an outer wall plate, FIG. 2 is a plan view of a skeleton showing a cantilever, FIG. 3 is an enlarged view of part A in FIG. 1, and FIG. 4 is a view in the direction of arrow B in FIG. FIGS. 5 and 6 show a conventional example of the present invention. FIG. 5 is a mounting view of an outer wall plate, and FIG. 6 is a plan view of a body showing a cantilever. 1 …… Skeletal body, 2 …… Cantilever, 4 …… PC board (outer wall board), 10 …… Omnier floor board, 15 …… Bank, 17 …… Convex section, 18 …… Leveling bolt, 20 …… Mounting Bolt, 28 …… Pull bolt, 29 …… Push bolt.

Claims (2)

(57) [Claims] 1. A concrete made by using an omni truss, which is a combination of an upper chord member, a lower chord member and a diagonal member, as a part of a main bar and has a bank extending along one end edge at one end edge. Using the Omnia floorboard, between the cantilever beams of the frame to which the outer wall board should be attached, the Omnia floorboard is bridged over the bank on the outer wall board mounting side, and the load of the outer wall board is applied to the Omnia floor board. A method for constructing an outer wall plate, which is characterized in that the outer wall plate is received. 2. A concrete made by using an omni truss which is a combination of an upper chord member, a lower chord member and a diagonal member as a part of a main bar and has a bank extending along one end edge at one end edge. The Omnia floorboard is bridged between the cantilever beams of the body to which the outer wall board should be attached, with the bank on the upper side and the outer wall board mounting side, and the inner wall of the outer wall board is provided with a convex portion, and the convex portion is A mounting structure for an outer wall plate, wherein the outer wall plate is attached to the ends of the cantilever in a form of being placed on the bank of the Omnia floor plate.