JPH10121721A - Free curved surface lightweight form and method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to carry out manpower execution by making a form member lightweight and to enable a form itself as an exterior wall surface of a building after the execution. SOLUTION: A plurality of stages of synthetic resin free curved surface lightweight forms 3 formed in the shape of an approximately square with a panel-shape providing form joint vertical ribs 1 having a plurality of bolt holes in both ends on the rear side and post vertical ribs 2 as form bases in teh central part on the rear side are fixed in parallel between a plurality of posts 4 installed at an interval shorter than the width of the form on the surface of a footing of a building with bolts/nuts in a curved state. One end of each of the posts 4 is borne on a diagonal member 5 fixed in concrete.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-weight formwork wall material and a light-weight formwork method using the same in earthwork with aerated lightweight concrete embankment used for road, residential land development and track work. .

[0002]

2. Description of the Related Art Conventionally, in a method of embedding light-weight aerated concrete, which is excellent in lightness and fluidity, an air-blended light-weight concrete as an embankment material is pumped by a grout pump or the like and embankment is performed. After the embankment material of the foam mixed lightweight concrete is constrained, after the embankment material has hardened, a concrete plate that also serves as the outer wall is assembled and constructed as an embankment formwork at the embankment construction site with a pillar or anchor material such as H-section steel. I have.

[0003]

In the conventional lightweight concrete embankment mixing method using a form material, the form of the H-shaped steel or the concrete plate which also serves as the outer wall surface is used for the formation of the form. When assembling, a lifting construction machine such as a crane is required, and a construction road that secures a work space for transporting materials and lifting heavy equipment is indispensable.

[0004] For this reason, when a road is required on a steep slope such as a mountain area, construction of a construction road for securing a work space for material transport and lifting heavy equipment is required in order to construct a main road. The costs for these construction roads account for a large part of the total road project cost,
Often accompanied by excavation work on the ground that is larger than required on the main road, which inevitably resulted in a long slope.
In addition to problems related to mountain control, it often leads to destruction of the natural environment.

[0005] The present invention solves the above-mentioned problems associated with the conventional foam-mixed lightweight concrete embankment method by reducing the weight of the material of the formwork serving as the outer wall surface and rationalizing the construction method, thereby contributing to the material transportation. Curved and lightweight formwork that allows for the transport of materials by manual work and assembly of the formwork that forms the outer wall surface of the lightweight concrete embankment, even if there is no construction road to secure the work space for the heavy lifting equipment It is to provide a curved lightweight formwork method.

[0006]

In order to achieve the above-mentioned object, a free-form surface lightweight formwork method according to the present invention comprises a plate-shaped thin layer formwork that forms a freeform surface as a formwork that also serves as an outer wall surface. This formwork is fixed in multiple stages in parallel with bolts and nuts in a curved state between columns installed on concrete at intervals shorter than the form width, and one end of this column is fixed and supported in concrete with diagonal material In this way, a simple structure that assembles a formwork that also serves as the outer wall surface is adopted. This aims to streamline work and increase efficiency. In addition, by reducing the weight of the form member that also serves as the outer wall surface, it is possible to perform manual construction, thereby reducing a secondary risk factor of the work environment and improving safety of the whole work.

[0007] The plate-shaped thin layer form is fixed at both ends of the form in such a manner that the form surface is curved in response to a pressure load from the back side of the air-mixed lightweight concrete embankment having fluidity. Thereby, the tension strength of the form material is made to function effectively to support the pressure load. In addition to adopting the curved formwork shape utilizing these tensile strengths, in order to expect the weight reduction of the formwork and long-term durability, the synthetic form material is used as the material of this formwork, and it is lightweight and elongated. A free-form light-weight formwork having high strength and capable of easily forming a curved free-form surface at a construction site.

[0008]

Embodiments and Examples of the Invention Embodiments and examples of the invention will be described below with reference to the drawings. First, in FIG. 1, a form connection vertical rib (1) having a plurality of bolt holes is provided at both ends of the back surface of the thin panel (3), and a support column vertical rib (2) serving as a form base is provided at the center of the back surface. 1 shows a free-form light-weight formwork made of a synthetic resin having a substantially square thin plate shape provided with.

In the embodiment shown in FIG. 2, the free-form surface light-weight formwork is used as a formwork which also serves as an outer wall surface of a high-fluidity bubble-mixed lightweight concrete fill material (7) pumped by a grout pump or the like. Show. In assembling the formwork, a free-form lightweight formwork (33) is appropriately pressed and bent between the plurality of columns (4) installed on the foundation concrete at intervals shorter than the formwork width in accordance with local construction conditions. A free-form surface lightweight formwork method in which a form is fixed in a plurality of stages in parallel with bolts and nuts in a curved state, and one end of a column is supported by a diagonal member (5) fixed in concrete.

[0010]

The present invention is configured as described above and has the following effects. The free-form surface light-weight formwork method has a simple structure of light-weight members, and therefore, it is possible to perform manual work for each work process including material transportation. In addition, it is possible to omit a construction road for securing a work space for material handling and lifting construction machines such as cranes.

[0011] In addition, by forming the formwork as a decorative formwork employing a design such as pseudo wood, it is possible to form a wall surface in consideration of the surrounding environment.

Further, since the formwork itself is used as a wall material, it is possible to expect the effect of protecting the surface and preventing deterioration of the light-weight concrete embankment mixed with air bubbles, thereby providing a soil with high safety and reliability in total. It is possible to build structures.

[0013]

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a first embodiment.

FIG. 2 is an explanatory diagram showing a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Form connection vertical rib 2 Post vertical rib 3 Thin layer panel 4 Post 5 Diagonal material 6 Foundation concrete 7 Bubble mixed lightweight concrete embankment material 8 Ground 33 Free-form surface lightweight formwork

Claims (2)

[Claims] 1. A form-connecting vertical rib (1) having a plurality of bolt holes at both ends on the rear surface of a substantially square thin-layer panel (3).
And a free-form surface lightweight formwork made of synthetic resin, provided with a support vertical rib (2) serving as a formwork base in the center of the back surface. 2. A free-form surface lightweight form (1) according to claim 1, wherein a plurality of struts (4) are installed at a gradient close to vertical to the foundation concrete (6) and at an interval shorter than the form width. 3
A free-form surface lightweight formwork method characterized in that 3) is set in a curved state, and is fixed in a plurality of stages in parallel with bolts and nuts, and one end of the column (4) is fixed and supported in concrete with a diagonal member (5). .