JPH04209281A - Reinforcing method for wall opening-section, and its reinforcing member - Google Patents

Abstract

PURPOSE:To execute work easily by fitting the same steel brow beam firmly on a section between supports via L-type metal fittings, after a pair of the lip channel shape steel supports are vertically set to be fitted on projection- shaped metal fittings fitted firmly on a floor and a ceiling. CONSTITUTION:At the specified positions of a floor slab 100 and a ceiling slab 200, two sets of projection bodies 31a, 31b, 32a, 32b are fitted with screws or the like. After that, a pair of support bodies 1a, 1b consisting of lip channel shape steels are formed, and in a state that lip surfaces are confronted with each other, the upper and lower ends are fixed to be fitted on the respective projections in a flush bolt type. After that, a brow beam 2 consisting of the lip channel shape steels is formed, and with connecting metal fittings 4 consisting of L-type members and tag pieces, lip sections are retained, to be fastened with bolts, and are fitted on the supports 1a, 1b. Then, the supports 1a, 1b are surrounded with steel networks and mortar and are integrated with a wall, and after that, a door frame or the like is fitted on an opening section. As a result, without requiring welding, reinforcement-work, and the like, opening reinforcing members can be fitted for regulation.

Description

[Detailed description of the invention]

[00011

[Industrial Field of Application] The present invention relates to a method for reinforcing openings in walls of buildings, etc. [0002] [0002] Conventionally, reinforcement of openings in walls made of iron mesh mortar, etc. 2. How to weld sections into place on site; 2. 3. A method in which the shaped steel is manufactured accurately to a predetermined size in advance and then installed on-site by tightening bolts, etc.; 3. Methods such as assembling reinforcing bars around the opening and hardening it with mortar or concrete are used. [0003] However, all of them require specialized skilled workers such as welders and reinforcing steel workers, and a lot of time and effort is required for reinforcing the openings. [0004] In addition, conventional wall opening reinforcement materials require a great deal of effort and specialized skill to be assembled, dimensioned, and installed on-site. [0005]

[Problem to be solved by the invention] Reinforcement of openings to firmly support window frames and door frames attached to wall openings, and to strengthen walls weakened by the presence of openings, is a method that uses shaped steel and reinforcing bars. It is carried out with a lot of effort by highly skilled workers. The object of the present invention is to provide a method for reinforcing a wall opening that can be easily and easily formed without requiring special skills, and a reinforcing material therefor. [0006]

[Means for solving the problem] When reinforcing pillars are erected on both sides of the opening, convex protrusions are attached to the floor and the ceiling of the frame or the bottom of the beam at the upper and lower ends, and lip grooves are used as the reinforcing pillars. Using shaped steel, install the reinforcing column so that both ends fit into the protrusions, and provide an eyebrow beam made of lip channel steel of a predetermined size above the opening, and when attaching the eyebrow beam, It is attached using a joining fitting that clamps and fastens the lip portion of the beam end and the lip portion of the side surface of the reinforcing column together. These reinforcements are wrapped in iron mesh mortar and solidified into the wall. [0007]

[Example] Fig. 1 is a perspective view showing a reinforcing column and an eyebrow beam used in the method of reinforcing a wall opening according to the present invention, installed in a predetermined position. 1a. 1b are placed on both sides of the predetermined opening with their lip surfaces facing each other. [0008] The columns 1a and lb are held by inserting and fitting both ends into convex protrusions attached to the floor and ceiling surfaces, respectively. [00091] Next, the eyebrow beam 2 made of a single lip channel steel is spanned over the opening between the columns 1a and lb and fastened. [00101 To fasten the eyebrow beam 2, use two connecting metal fittings 4.4' to sandwich both ends of the eyebrow beam 2, and then use the connecting metal fittings 4.4' to secure the lips of the pillars 1a and 1b to the specified positions. Pin the position. [0011] FIG. 2 is a perspective view showing a pair of convex protrusions 3a and 3b used to hold the column.They are made by bending a rectangular steel plate as shown in the figure, and are used to hold the column on the floor and ceiling. Secure it in place by driving it in place with rivets. When the column is fitted into this in an up-and-down manner, the column is held in a predetermined position. [0012] FIG. 3 is a perspective view showing the joining metal object 4,
As shown in the figure, two rectangular iron pieces 41 are screwed together with bolts 45 to one L-shaped metal fitting 40. This is used to fasten the eyebrow bridge 2 to the columns 1a and lb. [00131 FIG. 4 is a top view showing a state in which the end of the eyebrow bridge 2 is fastened to the column 1a using the metal fitting 4. As shown in the figure, the L-shaped hardware 40 is brought into contact with the outside of the lip portion of the column 1a, the rectangular iron piece 41a is brought into contact with the inside thereof, and the bolt 45 is cut into the rectangular iron piece 4], a. When the metal fittings 4 are screwed into the screw holes provided and tightened, the metal fittings 4 are fixed to the column 1a. If the end of the eyebrow beam 2 is fastened to the metal fitting 4 in the same manner, the eyebrow beam 2 will be fastened to the column 1a. [00141 FIG. 5 is a longitudinal cross-sectional view showing a portion where the end of the eyebrow bridge 2 is attached to the column 1a. In the figure, an L-shaped metal fitting 40 is brought into contact with the outer surface of the lip side of the column 1a, a strip-shaped iron piece 41a is brought into contact with the inner surface of the lip of the column 1a, and a bolt 45 is screwed and tightened. Similarly, the end portion of the eyebrow beam 2 is fastened to attach the eyebrow beam to the pillar body. [00151 FIG. 6 is an elevational view showing a state in which the wall opening reinforcing material of the present invention is attached to a position surrounding a predetermined opening 900. Shaped protrusions 31a, 31b, 32a, 32b
are fastened with rivets, the columns 1a and lb are erected there, the eyebrow bridge 2 is spanned over the opening, and the column 1 is fixed using the connecting hardware 4.
It is a figure fastened to a, lb. A door frame 10 shown in dotted lines can be attached here. [0016] FIG. 7 is a plan cross-sectional view showing a state in which the steel door frame 10a is attached to the opening reinforcing portion of the wall. In the figure, a door frame 10a is attached to a column 1a made of lip channel steel via legs 90, and together with the column 1a and an insulating core 50 connected thereto, a steel mesh 80, 81 and mortar 6 are attached.
0 indicates a state in which it is surrounded, solidified, and integrally reinforced. [0017]

[Effects of the Invention] A. When installing the wall opening reinforcing material, specialized skills such as welding are not required, and the installation can be done easily and easily. B. The position of the reinforcing eyebrow bridge can be freely and steplessly adjusted according to the height of the opening.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the assembled wall opening reinforcing material of the present invention.

FIG. 2 is a perspective view showing a set of convex protrusions used to hold the column.

FIG. 3 is a perspective view showing a metal joint.

FIG. 4 is a top view of the part where the eyebrow hair is fastened to the pillar body.

FIG. 5 is a vertical cross-sectional view of the part where the eyebrow hair is fastened to the pillar body.

FIG. 6 is an elevational view showing a state in which the opening reinforcing material is attached to a predetermined position.

FIG. 7 is a plan cross-sectional view of a portion where a door frame is attached to an opening reinforcement portion of a wall.

[Explanation of symbols]

la, lb column 2 eyebrow bridge 3a, 3b Convex protrusion 4.4' Joining hardware 40 L-shaped bracket 41.41a, 41b Rectangular iron piece 45 Porto 50 Insulation core material 10 Door frame 60 Mortar 80, 81. 82 Iron mesh 90 Mounted with legs 100 Floor slab 200 Ceiling slab 900 Opening position

[Figure 5]

Claims (3)

[Claims] Claim 1: A pair of pillars made of lip channel steel is provided on both sides of a wall opening, and a pair of protrusions are fixed to the ceiling and floor surfaces above and below the pillars, respectively. Both ends are fitted into the protrusion to hold the column between the floor and the ceiling, and
An eyebrow bridge made of lip channel steel is spanned over a predetermined opening between the pair of pillars, and the eyebrow bridge is secured by sandwiching and fastening the eyebrow ridge and the lip portion of each of the pillars. A method for reinforcing a wall opening, comprising using a reinforcing material supported by the pair of columns. 2. A method for reinforcing a wall opening, which comprises using the method described in the preceding paragraph, and further comprising wrapping the reinforcing material in iron mesh mortar and forming the reinforcing material integrally with the wall. Claim 3: A column consisting of a pair of lip channel steel, two pairs of convex protrusions fitted to both ends of the column, a eyebrow beam made of one lip channel steel, and a lip portion at the end thereof. Hold it in place,
A reinforcing material for a wall opening, characterized in that it consists of two sets of coupling fittings having a mechanism for sandwiching and fastening the lip portions of the pillars together.