JPS5920489Y2 - Anchor bolt mounting structure - Google Patents

Description

[Detailed description of the invention] The present invention relates to an anchor bolt device, and more specifically, a plurality of anchor bolts 2 are attached to a jig 1.
The anchor bolt installation method is related to the structure, in which the jig 2 is fixed upright at an arbitrary position, the jig 2 is placed on the concrete waste 3, and the jig 2 is fixed to the waste concrete 3 with concrete nails 4.

Conventionally, when installing anchor bolts in a foundation, the anchor bolts were fixed to the foundation reinforcement before concrete was poured, or the anchor bolts were embedded after the concrete was poured.

However, the anchor bolt provided in this manner has a problem in that errors are likely to occur in the setting position and the setting work is troublesome.

The present invention has been developed in view of the above points, and its purpose is to provide a structure for installing anchor bolts with less error in the setting position of anchor bolts and easy setting work. .

Hereinafter, the present invention will be explained in detail with reference to examples.

Reference numeral 1 denotes a jig for erecting and fixing the anchor bolt 2, and the jig is formed into a cubic frame by positioning a rectangular upper frame 6 supported by a support 7 above a rectangular lower frame 5. , the upper frame 6 and the lower frame 5 have insertion holes 5a for anchor bolts 2.
, 5a are bored at four locations, and each insertion hole 6a of the upper frame 6 and each insertion hole 5a of the lower frame 5 are made into pairs and are opposed to each other in the vertical direction. Fixing pieces 5b extend horizontally and outward from the fixing pieces 5b, and holes 5C are bored in these fixing pieces 5b.

Anchor bolt 2 is a straight rod, and threaded portions 2a are formed at each of the upper and lower ends.

Then, insert the anchor bolt 2 into each of the opposing insertion holes 5a and 6a of the jig 1, screw the two nuts 8 onto the threaded portion 2a at the lower end, and tighten these nuts as shown in FIG. The anchor bolt 2 is fixed to the jig 1 by holding the lower frame 5 with the screws 8, and the threaded portion 2a at the upper end of the anchor bolt 2 is fixed.
The entire structure projects vertically from the upper surface of the upper frame 6.

The jig A with the anchor bolt configured in this way is placed on the site marked by the ink 13 on the waste concrete 3, and the threaded portion 2a of the lower end of the anchor bolt 2 is inserted into the waste concrete 3. Then, the concrete nail 4 is driven into the waste concrete 3 through the hole 5C of the fixing piece 5b.

Therefore, as shown in Fig. 4, formwork 9 is arranged at a distance around jig A with anchor bolts, and then
Pour the concrete 10 to a position slightly below the threaded part 2a at the upper end.
A foundation 11 is to be constructed on which is set.

FIG. 7 shows the steel column 12 erected on the foundation 11.

In this invention, as mentioned above, multiple anchor bolts are fixed upright on the jig at any position on the jig, and this jig is placed on the picked concrete, so the jig with the anchor bolts is placed. The positioning can be done accurately using ink or the like on the waste concrete, and if a jig is placed on this positioning area, the anchor bolts can be accurately positioned at any position on the jig. In addition, since the jig was fixed to the waste concrete with concrete nails, the jig did not move during concrete pouring, and all that was needed was to drive the concrete nails into the waste concrete. This has the effect that fixing work is easy.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a jig with an anchor bolt according to an embodiment of the present invention, Fig. 2 is a partial side sectional view of the jig with an anchor bolt in the same as above, Fig. 3 is a perspective view of the same as above, and Fig. 4 is same as above. 5 is a perspective view with formwork installed on the same, FIG. 6 is a side sectional view with formwork installed on the same, and FIG. 7 is a perspective view of the foundation on which the same is used. FIG. 8 is a perspective view of columns erected on the foundation of FIG. 7, where 1 is a jig, 2 is an anchor bolt, 3 is concrete, and 4 is a concrete nail.

Claims (1)

[Scope of utility model registration request] Anchor bolt installation is a structure in which multiple anchor bolts are erected and fixed on a jig at arbitrary positions on the jig, this jig is placed on the waste concrete, and the jig is fixed to the waste concrete with concrete nails.