JPS58173238A - Construction of wall body in reinforced concrete building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Object of the Invention) The present invention relates to a construction method for a mounting body in reinforced concrete construction.

All objects of the present invention are to make it unnecessary to remove at least the outer formwork by making the outer concrete plate itself, which functions as the outer formwork, constitute the outer wall part of the wall body, and to make it possible to eliminate the need for removing the outer formwork, and to make the reinforced concrete f ! The second objective is to provide vertical through-holes in the outer concrete plate, so that the construction can be performed from the bottom of the through-hole upwards. The aim is to increase the thermal insulation properties of the unit by allowing air to flow through it.

(Prior art) Conventionally, walls in reinforced concrete buildings IIi were constructed by arranging vertical and horizontal reinforcing bars, and then sawing formwork on both sides of the vertical and horizontal reinforcing bars. Fresh concrete was poured into the concrete, and after the fresh concrete had cured and hardened, the N formwork was removed and construction was carried out.

On the other hand, with the rise in electricity prices in recent years, reinforced concrete I11:LA structures, which can be proud of in cities, are often constructed close to the border with neighboring properties. In this way, fiII*
Fi, just barely bordering the neighboring land li! ! - If this is the case, the construction side will be forced to do all the work on the premises, and will be required to carry out only the combined thickness of the four vertical and horizontal timbers and the thickness of the outside formwork. However, the construction had to be done away from the boundary line with the neighboring land, which had the disadvantage that the site could not be used effectively.

In addition, the tiling work and spraying work on the exterior walls was extremely dangerous as it was done at a high place and the footing was poor. When constructing a reinforced concrete building on the east side, between the construction site and the Is construction site, it becomes difficult or impossible to remove the outside formwork; Since the outer formwork had to be left as is, it was not possible to waterproof the wall surface, which caused rainwater to seep into the building.

(Structure of the Invention) The present invention has been made in view of the above-mentioned problems with the conventional method of constructing structures for reinforced concrete buildings using formwork. The board itself constitutes the outer bracing part of the wall body, which eliminates the need to at least remove external parts.A vertical through hole is provided in the outer concrete housing, and a vertical through hole is provided from the bottom of the through hole upward. The purpose is to improve the heat insulation of the installed body by allowing air to flow. Examples will be described below with reference to the accompanying drawings.

The outer concrete plate A, which functions as an outer mold and frame, is
As shown in Figure tJ1, it is a plate-shaped material with a width equivalent to one floor of a concrete building and a thickness of approximately 50 to 6 meters, with multiple through-holes installed in the vertical direction. Also, two bolt insertion holes 2 are provided at the upper end S and the lower end for inserting bolts 12 for fixing the alignment member DI and the retaining member F, respectively, and a connecting member C is provided at the center. Two bolt insertion holes 3 are provided at a predetermined interval for inserting bolts 13 that circumferentially define -
Two separator insertion holes 4 for inserting one end of the separator 19 are provided at a predetermined pitch between the lower part and the upper end part. Each bolt insertion hole 2
, 3 and the separator through hole 4, 111 plate nuts S are attached with strong adhesive, respectively. Also, on the #R@ end face of the outer concrete board, there is an I in the horizontal direction.
A coupling protrusion 6 and a coupling groove 7 are respectively provided for coupling with other outer shaft concrete plates #Im.

In addition, the plywood inner wall board B, which functions as the inner formwork, has almost the same shape as the outer concrete board, as shown in Fig. Dan! 18.9 are provided respectively, and a tightening hole 10 for inserting the keyaki 20 is provided in the pupil corresponding to the separator through hole 4 (next, the above-mentioned outer concrete plate m The construction of a 1 g 1 m reinforced concrete wall using inner wall board B will be explained step by step.

In Figures 113 to 115, a single row of L-shaped steel beams is fixed parallel to the vertical reinforcing bars 17a group on one side of the floor surface of the multiple vertical reinforcing bars 17m installed in the underground beam. At the same time, a supporting member E made of L-shaped steel is fixed to the floor surface 11 while holding a stone layer parallel to the alignment member and approximately half the height of the outer concrete plate A.

Next, the first and second outer concrete plates ^1゜A2
Attached to the lower end of the ! with bolt 12! After the retaining member F of the shape is dropped into and engaged with the upright sDa of the tsubagi S row member, fill and the second outer concrete plate A1. ^ 2 are connected to each other by a connecting member G made of L-shaped steel and a bolt 13, and then the tips of each branch 15 of a supporting member H, in which a pair of support columns 15 are connected via a turnbuckle 14, are , are connected to the horizontal portion Ga of the chain M member G and the upright glEa of the supporting member E, and rotate the turnbuckle 14 in a predetermined direction at a predetermined angle, so that the first and 112 outer concrete plates A,
Install A2 vertically. In addition, as shown in Figure 5, the support? [[The tip of each support column 15 of H is formed into a bifurcated shape, and is meticulously bent approximately 4s" to form a connecting part!S-, and the connecting part 15a is connected via a pin 16 and the horizontal part Ga of the connecting member G or the upright part 11i1Ea of the supporting member E. Then, the third outer concrete plate ^3 is installed, and the second and third outer concrete plates A2 and A3 are connected. They are connected by a connecting member G.

Thereafter, repeat each of the above operations to vertically install multiple outer concrete plates. Incidentally, it is sufficient to provide one connecting member for every two to three outer concrete plates.

Next, after aligning the upper ends of each outer concrete plate A by horizontally fixing a plate-shaped alignment member D/ to the upper end of each outer concrete plate installed vertically, the outer concrete plates A are Assemble a beam frame and a column formwork (both not shown) to form the outer formwork, and connect this beam frame or column formwork to the upper end of the outer concrete plate A using iron wire, etc. Then, each support If1 member H is removed.

Here, even if the support member 8 is removed, the upper part of the outer concrete plate A
will not fall. On the other hand, the engaging member F attached to the lower part of the upper outer concrete plate is dropped and engaged with the alignment member DI.

Next, vertical reinforcing bars 1117b and horizontal reinforcing bars 18 are arranged inside the outer concrete plate A. After that, vertical / hammer reinforcement 1
A plurality of inner wall plates 8 are installed inside the concrete walls 7m, 17b, and 18, and the outer concrete plate A and the inner wall plate B are connected to each other through a separator 19 and a tightening rod 20 while maintaining a predetermined interval. .

Next, the plurality of P'llI boards B4 are
MIj at ゜22! C. Fresh concrete C is poured and placed between the outer concrete A and the inner wall board B, and after the fresh concrete C is cured and hardened, vertical and horizontal thick square members 21 and 2 are placed.
'2 and tightening can be done by removing the rod 2G, and the outer concrete plate A functioning as the outer formwork and the inner wall plate B functioning as the inner formwork constitute the outer wall part and the circle part 11 of the wall, respectively, and the reinforced concrete Construction of the 1m5i wall for the first floor has been completed.

Thereafter, the above-mentioned steps are repeated one after another, and the cap 0 is moved one floor upward one by one.

As another support member H/, as shown in FIG.
9, and by installing this support a15/ so as to satisfy the following conditions, the outer concrete plate At- can be installed vertically. Outer concrete [Alternate layers L1 between the lower end of A and the support stop 11DIII, and the lower end of the outer concrete plate A and each other @lII#G
The ratio of the tonneau 1ll (DIillL2, support at st)gt to the length L3 may be set to, for example, 3:4:5.In addition, the connecting member G that connects the laterally adjacent outer concrete plate At is made of fresh concrete. It is aSSed to cP1 and serves the function of reinforcing the outer concrete plate.

In addition, as shown in Fig. 114, an outer concrete plate A with air inflow holes 23 formed by horizontally cutting out the outer skin at the lower end is installed at the lowest stage, and an air outflow hole is installed by cutting the outer skin at the upper end horizontally. By installing the outer concrete plate with holes 24 on the top level, the through holes 1 are connected to each other.
When the temperature of the air inside rises due to solar heat, a slight upward air current is generated, causing relatively low temperature air near the ground to flow into the air inflow hole 23, and air with increased temperature to flow out from the air outflow hole 24. This prevents an excessive temperature rise in the wall.

In the above embodiment, the outer concrete plate ^ and the inner wall plate B constitute the outer am and inner Il groups of the installation body, respectively, making it unnecessary to remove the formwork at all. Alternatively, a normal inner formwork may be used and the inner formwork may be removed after the fresh concrete has cured and hardened.

(Effects of the Invention) (1) In the wall construction method of the present invention, the outer concrete plate that functions as the outer formwork constitutes the outer am of the installation, so at least there is no need to remove the outer formwork. becomes. First, if the inner wall board that functions as the inner formwork constitutes the circular m portion of the wall, there is no need to remove the formwork after construction.

Therefore, labor costs for removing the formwork and laying out the layers can be reduced.

In addition, the outer concrete plate that functions as the outer formwork,
Since it is configured to be outside the wall, all work can be carried out within the construction site without encroaching on the adjacent land. Therefore, the existing i! Even in the case where a public building has been constructed, it is possible to construct reinforced concrete construction just at the border with the neighboring land, and the site can be used freely.

(2) An outer concrete plate with air inflow holes cut out horizontally in the outer skin of the lower 11 meters is installed at the lowest level, and an outer concrete plate with air outflow holes cut out horizontally in the upper 1 m part of the outer skin is installed at the bottom. By installing it on the top level, when the wall is heated by solar heat, an upward air current is generated in the vertically communicating through holes, which prevents the wall from excessively increasing the temperature, which in turn prevents the wall from heating up. can improve the insulation properties of

(3) Exterior work such as tiling, spraying, etc. can be performed on the outer circumferential surface of the outer concrete board inside the factory or on the ground, so the exterior work can be done completely clean. At the same time, it is possible to carry out exterior work with high accuracy and precision.

4.4 Relationship with Addition The present invention relates to the reinforced concrete butterfly Il! related to Japanese Patent Application No. 57-13949. An invention in which the construction method for a wall that can be expanded into an object is the main part of the matters essential to the structure of the nuclear power plant, which constitutes the same purpose as the nuclear power plant. Therefore, the Patent Law 1
It meets the requirements of Article 1131, Item I11.

[Brief explanation of the drawing]

al 11121 is a perspective view of outer concrete plate A;
Figure 2 is a perspective view of the inner wall plate B, Figure 3 is a perspective view showing the wall W in progress, and Figure 4 is a cross-sectional view of the wall after concrete is poured. , connecting member G and support column 15
A cross-sectional view showing the connected layer with the 6th figure is *H! ll material H
It is a gaIiii diagram showing a state in which the outer concrete plate ^ is installed vertically by l. (M#gi of the sleeve name of the main part) 1: Through hole ll: Floor surface 14: Turnbuckle Emperor 5. Is': Pillar 17@
, 17b: Vertical reinforcing bar 18; Horizontal iron fi 2al! fii 1 hole 24
:Air outflow hole ^:Outer concrete temporary B:Inner rock board C:Ready-mixed concrete F:Holding member G:
Connection member) 1, 117; Support member 119 Body Fig. 1 Fig. 2 Fig. 6 Fig. 5

Claims (1)

[Scope of Claims] a) (A retaining member attached to the lower end of the outer concrete plate having a plurality of tribute holes in the downward direction is attached to the upper end of each outer concrete plate on the floor surface or lower tier) At the same time, the central portions of the adjacent outer concrete plates are connected via the connecting member, and then the support #lI
The process of vertically installing multiple outer concrete plates by sequentially repeating each operation of removably connecting each end of the # to the trust connecting member and the support member fixed to the floor, By horizontally attaching another alignment member to the upper end, the upper end of each outer concrete plate is arranged in a row, and then a beam form and a column form are assembled so that the outer concrete plate serves as an outer platform frame, and The process of fastening this beam formwork or column formwork and the upper end of the outer concrete plate with iron wire, etc., the process of removing the O support 8g material, and the arrangement of vertical and horizontal reinforcing bars inside the O outer concrete plate. ■A process of installing multiple inner wall plates inside the vertical and horizontal reinforcing bars, and connecting the outer concrete plate and the inner wall by maintaining a predetermined distance with separators; A reinforced concrete igim- is characterized in that the wall of a reinforced concrete building is constructed by sequentially repeating the steps of pouring fresh concrete and curing and hardening it between 1 and 6, and removing the inner wall boards according to the 6 walls. (2) A wall in a reinforced concrete building recited in Claim 1, characterized in that a pair of pillars connected via a turnbuckle is used as the supporting member. (3) An outer concrete plate with air inflow holes cut out horizontally in the outer skin at the lower end is installed at the lowest level.
A wall made of reinforced concrete 1111411 according to claim 1 or 2, characterized in that an outer concrete plate with air outflow holes formed by horizontally cutting out the outer skin of the upper part is installed at the top level. Body construction method.