JPH0710252U - Jig for positioning PC floor board - Google Patents

Abstract

(57) [Summary] [Purpose] The installation of PC floorboards with beard streaks is facilitated and the installation accuracy is improved to improve workability, joint strength and reliability. [Structure] A main frame 2 for positioning which is arranged on the side of the leading mustache line 13a of the PC floor plate 11a previously installed and set on the beam 10, and a floor PC plate obliquely installed on the main frame 2 and installed later 11b is a slanting guide portion 3 that slides and positions the trailing beard muscle 13b, and a leading beard muscle 1 formed between the lower end of the slanting guide portion 3 and the side portion 2a of the main frame 2.
It is characterized in that the locking portion 3a of 3a is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a positioning jig for a PC floor board that facilitates installation of the PC floor board with a beard streak on a beam and enhances installation accuracy.

[0002]

[Prior art]

 Recently, in various RC buildings, columns, beams, floorboards, bearing walls, etc. that have been pre-cast and pre-cast in factories have been widely used from the viewpoints of streamlining construction, shortening the construction period, and improving quality. There is. For example, as shown in FIG. 1, a PC (precast) floorboard 11a has a structure with a beard streak 13a in which an uneven cotter 12 is formed on the end face portion of the RC floorboard and a beard bar 13a is projected at an appropriate interval. , The crane is used to lift the end face part on the beam (large beam, small beam) 10 and the mustache line 13a is placed on the beam 10 and erected, and another PC is provided on the opposite side of the beam 10. The end face portion of the floor plate and its beard muscles are similarly arranged and erected, and the preceding beard muscles 13a and the trailing beard muscles adjacent to each other on the beam 10 are superposedly arranged and welded to each other. Concrete is poured between the end faces and joined together to increase the joint strength.

[0003]

[Problems to be solved by the device]

 Conventional PC floorboards with mustache lines are often used to accurately install the backward beard muscles of the PC floorboard to be installed later in a superposed manner with respect to the leading beard muscles of the PC floorboard previously installed on the beam as described above. There is a problem in joint strength, reliability, etc. as well as its workability, since it requires labor and time, and variations in bar arrangement are likely to occur.

The present invention has been developed to address the above-mentioned problems, and its purpose is to facilitate installation of a PC floor board with a beard and enhance its installation accuracy, An object is to provide a positioning jig for a PC floor board, which has improved bonding strength and reliability as well as good properties.

[0005]

[Problems to be solved by the device]

 The present invention is directed to a main frame for positioning which is arranged on the side of the leading mustache line of the PC floor plate previously installed and set on the beam, and a trailing beard of the PC floor plate which is obliquely installed on the main frame and will be installed later. It is equipped with an oblique guide part that slides and guides the muscles and positions it on the beam, and a locking part for the leading mustache muscle formed between the lower end of the oblique guide part and the side part of the main frame. The main frame with the oblique guide is placed on the side of the leading mustache line of the PC floorboard, and the leading mustache line is locked at the locking part between the lower end of the oblique guide and the side of the main frame. By setting it on the beam, the posterior beard streak of the floor PC board to be installed later is slidably guided and positioned by the oblique guide part, which facilitates the installation of the PC floor board and enhances the installation accuracy and reliability.

[0006]

[Action]

 If the main frame with oblique guides is placed on the side of the leading mustache line of the PC floorboard that was previously installed, it will precede the locking part between the lower end of the oblique guide and the side of the main frame. The beard muscles are locked, the main frame is easily fixed in place on the beam, and the posterior beard muscles of the PC floor plate, which will be installed later, are slid and guided by the oblique guide parts, and It is easily and accurately arranged in a superposed manner on the side, the main frame with the oblique guide part is removed upward, the beard muscles are welded to each other, and the concrete is placed. Bonding strength, reliability, etc. are effectively improved.

[0007]

【Example】

 1 and 2 show an embodiment of the present invention. In the figure, 1 is a jig for locating the PC floor board of the present invention, 2 is a main frame of the positioning jig 1, 2a is a side part of the main frame 2, and 3 is an obliquely installed obliquely above the main frame 2. The installation guide part 3a is a locking part of the leading mustache line 13a formed between the lower end of the oblique guide part 3 and the upper part of the side part 2a of the main frame 2, and 5 is projected on the central part of the main frame 2. An installed handle, 10 is a beam (a large beam or a small beam), 11a and 11b are PC floor plates, 12 is an uneven cotter formed on the end face portions of the PC floor plates 11a and 11b, and 13a and 13b are end faces of the PC floor plates 11a and 11b. These are beard muscles (leading beard muscles and trailing beard muscles) protruding at appropriate intervals. In the illustrated embodiment, the beam is arranged on the side of the leading beard muscles 13a of the PC floor board 11a previously installed. A main frame 2 for positioning set on 10, and a rear beard muscle of a floor PC board 11b installed obliquely on the main frame 2 and to be installed later. An oblique guide portion 3 for slidingly guiding 3b to position it on the beam 10, and an engaging portion of the leading mustache line 13a formed between the lower end portion of the oblique guide portion 3 and the side portion 2a of the main frame 2. It is a jig 1 for positioning a PC floor board equipped with 3a.

More specifically, in the positioning jig 1 described above, as shown in FIG. 1, the main frame 2 is formed by a pair of plate members or the like that are arranged in parallel with each other at appropriate intervals, The stud bolts (see FIG. 2) that are erected in the vertical direction can be easily set on the beam 10 without being obstructed by the stud bolts 15 (see FIG. 2). The first side surface 2a is formed on the side of the leading mustache line 13a of the PC floor board 11a which is installed first. The oblique guide portion 3 is obliquely welded to the side-view mountain-shaped portion formed on the upper portion of the main frame 2, and the lower end portion thereof is provided below the side portion 2a of the main frame 2 with an appropriate interval. The main body 2 with the oblique guide portion 3 has a structure in which the engaging portion 3a of the leading mustache line 13a is formed between the side portion 2a of the main frame 2 and the side portion 2a of the main frame 2. A handle 5 is provided at the center of the upper portion of the main frame 2.

As shown in FIG. 1, the PC floor board 11a is suspended by a crane or the like and erected between beams (large girders, girders, etc.) 10 of H-section steel, RC construction or the like. The concave and convex cotter 12 portion of the end face portion of the beam serves as a margin on the side portion of the beam 10, and the leading mustache line 13 a protruding from the end face portion is arranged and installed on the beam 10. Next, when the main body 2 with the oblique guide portion 3 of the positioning jig 1 is arranged so as to abut on the side portion of the leading mustache line 13a on the beam 10, the lower end portion of the oblique guide portion 3 and the main frame 2 are arranged. The upper part of the leading mustache muscle 13a is locked to the locking portion 5a between the side surface 2a of the front side and the side jig 2a, and the positioning jig 1 is easily and accurately fixed to the side part of the leading mustache muscle 13a. , The other PC floor board 11b is hung by a crane or the like, and its ends are installed adjacent to each other on the beam 10, and the trailing mustache line 13b of the end surface portion of the PC floor board 11b is obliquely guided. 3 is slidably guided and descends, and the trailing beard muscles 13b are easily and accurately arranged in a superposed manner on the side of the leading beard muscles 13a of the PC floor board 11a which has been previously installed (FIGS. 1B and 2A). ), When the positioning jig 1 is removed upward by the handle 5, for example, As shown in FIG. 2, the end faces of the PC floorboards 11a and 11b are accurately adjacent to each other on the beam (large beam or small beam) 10 and each leading mustache line 13a and each following beard line 13b are mutually connected. They are arranged in a superposed manner with a small interval (for example, the thickness of the oblique guide portion 3 is 10 mm or less), and the clearance dimension between the beard muscles is small, so that the mutual welding can be easily performed, and the PC floor plates 11a and 11b can be easily welded. When concrete C is placed between the end faces, both ends of the PC floor boards 11a, 11b are fixed by the uneven cotter 12 formed on the both end faces, the leading beard bar 13a and the trailing beard bar 13b, and the stud bolt 15 on the beam 10. The beams 10 are strongly and integrally joined together.

In the illustrated example, the case where the PC floor plate is installed on the H-shaped steel beam is illustrated, but the same applies to the case where the PC floorboard is installed on the various shaped steel beams and RC beam forming, and The structure of the PC floor board is not limited to the illustrated example.

[0011]

[Effect of device]

 According to the present invention, when the main frame with the oblique guide portion for positioning is arranged on the side of the leading mustache line of the PC floor plate previously installed as described above, the lower end portion of the oblique guide portion and the main frame The leading mustache line is locked to the locking part between the side part, the main frame with the oblique guide part is fixedly set at a fixed position on the beam, and the trailing beard line of the PC floor plate to be installed later is The slant guides are slid and guided to be precisely and laterally arranged on the side of the leading mustache muscle.The main frame with the slant guides is removed upward, and the beard muscles are welded together to make the concrete. By placing, the PC floorboard with the beard streak can be easily installed, the installation accuracy is improved, and the workability as well as the joint strength and reliability are significantly improved.

[Brief description of drawings]

FIG. 1 is a perspective view (A) showing an embodiment of the present invention and its usage, a side view (B) and a plan view (C) of a positioning jig for a PC floor board of the present invention.

FIG. 2 is a plan view (A) of a beam upper portion showing a positioning installation state of a PC floor board and its XX sectional view (B).

[Explanation of symbols]

 2 Main frame 2a Side part (main frame) 3 Oblique guide part 3a Locking part 10 Beam (large beam, small beam) 11a PC floor plate 11b PC floor plate 13a Mustache muscle (leading mustache muscle) 13b Mustache muscle (reverse beard muscle)

Claims (1)

[Scope of utility model registration request] 1. A main frame for positioning, which is arranged on a side portion of a leading mustache line of a PC floor plate previously installed and set on a beam,
Between the oblique guide part that slidably guides the posterior beard muscle of the PC floor plate that is installed on the main frame and is positioned on the beam, and the lower end of the oblique guide part and the side part of the main frame. P having a locking portion of the leading mustache muscle formed in P.
C Floor plate positioning jig.