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JP2012036635A |
To provide a sheet material for being wound around a void tube when an opening is formed in concrete, which maintains proper flexibility and workability while preventing intrusion of foreign matter into an internal space.A sheet material...
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JP2012026261A |
To provide a form unit and a method for forming a void enabling a tensile reinforcing member to be arranged and fixed as an ex-post process in a structural member in which concrete is placed.A form unit (1) for forming a void (5) for con...
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JP4871117B2 |
To provide a sleeve to be inserted into an opening portion formed in a beam of a concrete structure, whereby it is easily installed and fixed to a proper position of a through-hole of an external wall and easily connected to a pipe insid...
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JP2012002003A |
To provide a handrail post erection method capable of facilitating formation of a post erection hole and improving construction efficiency.A post erection hole forming mold 1 is composed of a cylindrical bottomed inner tube 2 with cleara...
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JP4838281B2 |
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JP2011246880A |
To provide a supporting fitting for a sleeve of a reinforced-concrete perforated beam that accurately secures the concrete covering depth from the inside of a stirrup to the outside of the sleeve and that accurately performs the position...
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JP2011246874A |
To easily and properly install sleeves in foundation construction.A pair of foundation forms 27 are disposed spaced apart from each other at a predetermined distance in a foundation construction site. A sleeve positioning jig 60 is dispo...
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JP4831798B1 |
To provide a box-extracting form and a method for extracting the box-extracting form, which can form irregularities on the inner surface of the box-extracting hole and easily pull out the box-extracting formwork from cast concrete. This ...
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JP2011226099A |
To demonstrate a function as a cross-sectional deficit part securely so that the function of a stop material is not impaired.The inducement joint formation component 1 according to the present invention includes: a mounting plate 2 havin...
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JP2011214365A |
To enhance transportation efficiency of a void form and lifting efficiency to a construction part, to eliminate troublesomeness of cutting a spiral pipe to a required length according to field conditions and further to stably fix the voi...
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JP2011202379A |
To eliminate air during concrete placement in constructing a cover engaging part of a concrete structure.The cover engaging part D of the concrete structure is constructed by fixing a stiffener 2 wound with a water permeable sheet 3, to ...
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JP4778475B2 |
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JP4776525B2 |
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JP4756369B2 |
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JP2011144612A |
To provide a holder for a steel sleeve preventing such troubles like difficulty in fixing or an injury of a hand, in view of a conventional method of fixing of a steel sleeve to a form with nails by which the hand is put in a space betwe...
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JP4725897B2 |
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JP2011099277A |
To provide a crack joint forming implement and a joint forming method for a concrete slab that can easily form a crack joint in the concrete slab of an earthen floor or the like without taking time for construction.The crack joint formin...
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JP2011094337A |
To enable the easy checking of an entry of concrete into a gap between a form for pouring concrete and the downside of the hollow form, in the placing of the concrete, while securing the rigidity of the hollow form.A pair of through-hole...
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JP4681586B2 |
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JP4678557B2 |
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JP2011047140A |
To provide an implement for forming a mounting hole, which enables the mounting hole to be simply formed in placing concrete.This implement for forming the mounting hole is arranged in a form 22, and detached after placing the concrete 3...
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JP4639105B2 |
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JP2011026777A |
To solve a problem of causing such a fault that concrete is easily chipped at an acute angle part because a construction joint face end of precast concrete is left in acute angle shape in the prior art and providing the skeleton side fac...
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JP4627593B2 |
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JP2011007024A |
To overcome problems of a form for a floor opening of a reinforced concrete building, wherein, though the concrete around the form is disassembled after being solidified, since the upper part of the form is made slightly larger than the ...
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JP4607251B1 |
To provide a box-drawing formwork and a die-cutting method thereof, which can surely reduce pull-out resistance and can be easily pulled out from cast concrete. A box-extracting formwork 50 includes a suspension rod 35 suspended by a han...
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JP2010285856A |
To solve problems of a holder for fixing a sleeve to a ready-made opening reinforcing bar in a single bar arrangement for a reinforced concrete building, wherein since the quantity of fixing holders of large diameters for dedicated use o...
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JP2010265741A |
To provide a sleeve which can be easily fixed and can prevent injury at attachment when the extendable sleeve is attached to a form. The telescopically slidable sleeve is constituted in an overlapped structure by expanding one side of a ...
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JP2010248733A |
To provide a device for fixing a void form base which can fix the void form base to a slab form only from the upside of the slab form, and can reduce workers, shorten a construction period, and improve the safety of work.The device for f...
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JP2010242407A |
To provide a sleeve fixing kit and a sleeve fixing method for easily and accurately fixing a sleeve in a short time to inside-outside foundation reinforcements arranged in parallel.The sleeve fixing kit includes a sleeve fixing member, a...
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JP4567856B2 |
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JP2010222915A |
To solve the problems of a conventional columnar steel form for back-filling wherein since a form is absent, sediment for back-filling forms a slope, deposited concrete is wasteful, and the thickness of a slab is not uniformed.This colum...
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JP3163108U |
To provide an installation position adjusting device for facilitating construction by absorbing an error between a construction position and a design position in a driving type square drain. The jig 30 is fixed to a concrete formwork 28,...
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JP4551550B2 |
A concrete embedding anchor includes. An anchor including an anchor body having a head at one end of the shank and a stopper at the other end, a fitment concentrically mounted to said head and having an external thread and easy breaking ...
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JP2010196449A |
To provide a convertible penetration opening form formed in a synthetic resin tube and removable from a solidified concrete without damage by folding to the inside in the axial direction.This convertible beam penetration opening form inc...
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JP2010174601A |
To provide a mounting hole forming implement for easily forming a mounting hole when placing concrete.The mounting hole forming implement 1 disposed in a form 60 and removed after placing concrete 65 to form the mounting hole for a post ...
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JP3161557U |
To provide a through-hole forming pipe body which can be easily removed from the foundation concrete, can be diverted from an off-the-shelf product, and can be used repeatedly. The inner peripheral surface of one of the first cut side 5 ...
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JP2010168782A |
To provide a method for forming a human passage opening, which enables the human passage opening to be formed by means of one type of form for forming the human passage opening, even when the thickness of an inside foundation beam formed...
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JP4519190B1 |
To provide a box-extracting formwork which is easy to assemble, maintains sufficient structural strength at the time of placing concrete, is easy to disassemble at the time of taking out, and can reduce the cost. In order to form an equi...
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JP3160956U |
To provide a type device for forming a through hole which can be easily removed after placing and solidifying concrete and can be reused. To provide a through-hole forming type device that can be assembled at a construction site, does no...
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JP3160955U |
To provide a through-hole forming type device which can be easily removed after placing and solidifying concrete and can be reused. A tubular body 3 made of plastics having a split portion 7 continuous along the axial direction and elast...
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JP4505094B2 |
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JP4484152B2 |
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JP4477092B1 |
To provide a reinforcing member for leaving a concrete structure for preventing a column hole from losing its shape. This is a residual reinforcing member 10 to be embedded in a column hole of a concrete structure, and has a coiled wire ...
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JP2010090684A |
To provide a two-stage underfloor space ventilation method of a rising section of a foundation including a circular tube for a ventilation hole, a form therefor and a truss reinforcing bar arrangement for reducing time and labor of const...
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JP4450757B2 |
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JP4445781B2 |
A formwork (10) having a hollow region defined therein for use embedded in an elongate concrete member during casting of a concrete material. The formwork (10) is arranged to be lightweight, environmentally friendly and inexpensive and t...
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JP2010047898A |
To provide a spacer for placing concrete which can be easily separated from the concrete.The spacer body 1 is formed in a long shape, and a coating material 2 is attached to an outer surface of the spacer body 1. The coating material 2, ...
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JP4404321B1 |
To provide an outer skin material holding member capable of forming openings having various shapes in a concrete structure and being fixed at various positions to a corrugated steel plate. An end holding member (11) includes a main body ...
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JP4398690B2 |
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