JPH06299540A - Double-steel shell-combined structural wall - Google Patents

Abstract

PURPOSE:To increase workability, by connecting one of steel shells to a form provided at the outer face thereof and connecting the other of steel shells engaged with one of them to a form provided at the outer face thereof and filling concrete between respective steel shells and the form. CONSTITUTION:Steel joint members 10 are arranged at both ends in the width direction in one of flanges of a H-shaped steel 8 and the end without joints in the joint member 10 is fixed by welding. Steel joints members 12 are arranged at both ends of the width direction in the other flange of the H-shaped steel and the end of the width direction in the steel joint 12 is fixed by welding. A number of pierced holes 17 to insert a form connector body 15 are made on a form or a left-inplace-form 2, 5 to fix it by nuts 18 and washers 16 for supporting forms. And concrete is placed between one of steel shells 1 and the other thereof and also concrete is filled between steel shells 1, 4 and the form or the left-in-place-form 2, 5. The stress generated in respective steel shells 1, 4 becomes small by form connectors 3, 6 and the distance between the steel shells 1, 4 and the form or the left-in-place-form 2, 5 is accurately kept.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double steel shell composite structure wall used in the fields of civil engineering and construction.

[0002]

2. Description of the Related Art In a conventional double steel shell composite structure wall, a stiffening steel material is attached to the steel shell by welding in order to reduce bending stress generated in the steel shell due to the pressure of the concrete when the concrete is poured. It is or is actually Kaihei 2-1490
No. 27, the steel shells are connected to each other by tie bars, or an opening is provided in the steel shell as in Japanese Patent Laid-Open No. 2-66216, and a mold or buried mold is formed on both sides of the steel shell. It may be possible to prevent the deformation of the steel shell and the generation of excessive bending stress due to the concrete pouring pressure.

[0003]

When welding stiffening steel materials, not only the machining process and cost increase but also the existence of a large number of stiffening steel materials complicates the structure of the double steel shell,
In addition, since a large amount of closed space is created, the workability of the double steel shell and the filling performance of concrete during concrete pouring are deteriorated, and it is necessary to separately perform anticorrosion treatment on the steel shell on one side in contact with the outside. When the steel shells are connected to each other by a tie bar, the drawback of welding a large amount of stiffening steel material can be solved, but it is necessary to separately perform anticorrosion treatment on one side of the steel shell that contacts the external environment. Even if an opening is provided in the steel shell and a formwork or buried formwork is installed on both sides of the steel shell, the drawback of welding a large amount of stiffening steel material can be solved, but the formwork is formed on both sides of the steel shell. It takes a lot of work to install etc. That is, it is generally only the outer surface of the steel shell on one side that is in contact with the outside world that requires anticorrosion treatment, and the anticorrosion treatment on the outer surfaces of the steel shells on both sides increases the construction process and costs.

[0004]

According to the present invention, when concrete having a double steel shell composite structure is cast, cover concrete is applied to the outer surface of one of the steel shells requiring corrosion protection, or the steel shell is buried. The amount of stiffening steel material to be attached by welding in order to prevent the generation of deformation and bending stress in the other steel shell due to the placing pressure of concrete is reduced while constructing the filling concrete between the formwork.

[0005]

3 and 4 show steel shells 1 and 4 having formwork connectors 3 and 6 used in an embodiment of the present invention, in which one flange 9 of an H-shaped steel 8 is provided. A steel joint member 10 formed by cutting a flat steel sheet pile is arranged at both ends in the width direction so as to be located on the same plane as the flange 9, and the joint member 10 has a joint-free width direction. One end of is fixed to the flange 9 by welding.

At both ends of the other flange 11 of the H-shaped steel 8 in the width direction, a steel joint member 12 formed by cutting a flat steel sheet pile is located on the plane with the flange 11. A trapezoidal notch 14 for forming a number of openings 13 is provided at one end of the joint member 12 in the width direction without a joint, and the one end of the joint member 12 in the width direction has the flange. It is fixed to 11 by welding.

To each of the joint members 10, the base end portions of a large number of formwork connector main bodies 15 made of round steel rods inserted into the openings 13 are fixed by welding, and the tip end portions of the formwork connector main bodies 15 are fixed. Is provided with a male screw, and a washer for formwork support 1
6 is fixed, the joint members 10 and 12 in the plurality of steel shell members having the formwork connector main body 15 and the joint members 10 and 12 are intermeshed with each other, and the intermeshed joint member 10 is partially Joined by welding, the steel shell 1 is constructed, and similarly, the steel shell 4 is constructed.

FIG. 5 shows a state in which the steel shell 1 and the steel shell 4 are engaged with each other, and FIG. 6 shows that the molds or buried molds 2 and 5 are attached to a part of the engaged steel shells 1 and 4. A plurality of through holes 17 for inserting the mold connecting tool main body 15 are provided in the molds or the buried molds 2 and 5, and the molds or the buried molds 2 and 5 are shown. 5 is separated from the flange 11 and the joint member 12 by the nut 18 screwed to the male screw of the formwork connector main body 15 and the formwork support washer 16 fixed at a predetermined position of the formwork connector main body 15. It is fixed in the closed position.

By placing concrete 7 between the one steel shell 1 and the other steel shell 4 produced as described above, the steel shells 1 and 4 and the molds or the buried molds 2 and 5 are formed. Also, the concrete 7 is filled through the opening 13 between the and, and the deformation of the steel shells 1, 4 and the molds or the buried molds 2, 5 is suppressed by the mold connecting tools 3, 6. , The stress generated in each steel shell 1 and 4 is reduced, and the steel shells 1 and 4 and the mold or the buried molds 2 and 5 are accurately maintained with a double steel shell composite structure wall body constructed. To be done.

When the present invention is carried out, a decorative plate may be used as the molds or the buried molds 2 and 5.

[0011]

According to the present invention, the one steel shell 1 and the mold or the buried mold 2 provided on the outer surface of the steel shell 1 are connected to each other by the mold connecting tool 3 and meshed with the one steel shell 1. The other steel shell 4 thus formed and the form or buried mold 5 provided on the outer surface thereof are connected by a form connecting tool 6, and the respective steel shells 1, 4 and the form or buried form, 5 is filled with concrete 7, so that the attachment amount of the stiffening steel material to the steel shells 1 and 4 which has been a problem in the above-mentioned conventional technique is reduced, and as a result, the process steps of the steel shells 1 and 4 are shortened. In addition to realizing cost reduction, the filling property of the concrete 7 at the time of placing concrete is also improved, and the cover concrete 7 passes through the opening 13 on the outer surface of the steel shells 1 and 4 on one side that requires corrosion protection. Since it is automatically filled, The filling of the concrete 7 to between 1,4 and mold or fill killing mold 2,5 may be carried out simultaneously and rapidly.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view showing a double steel shell composite structure wall body according to an embodiment of the present invention.

FIG. 2 is a cross-sectional plan view showing a part of FIG. 1 in an enlarged manner.

FIG. 3 is a cross-sectional plan view showing a steel shell having a formwork connector.

FIG. 4 is a cross-sectional plan view showing a part of FIG. 3 in an enlarged manner.

FIG. 5 is a perspective view showing a state in which a plurality of steel shells are connected.

FIG. 6 is a perspective view showing a state in which a mold is attached to a part of the steel shell.

[Explanation of symbols]

 1 Steel shell 2 Formwork or buried mold 3 Formwork connector 4 Steel shell 5 Formwork or buried form 6 Formwork connector 7 Concrete 8 H-shaped steel 9 Flange 10 Joint member 11 Flange 12 Joint member 13 Opening 14 Trapezoidal notch 15 Formwork connector body 16 Formwork support washer 17 Through hole 18 Nut

Claims (1)

[Claims] 1. One of the steel shells 1 and a mold or an embedded mold 2 provided on the outer surface of the one steel shell 1 are connected by a mold connecting tool 3, and the other steel shell meshed with the one steel shell 1 Four
And the formwork or buried formwork 5 and the like provided on the outer surface thereof are connected by a formwork connecting tool 6, and between the steel shells 1 and 4 and the formwork or buried formwork 2 and 5, Concrete 7
Double steel shell composite structure wall filled with.