JPH0464368B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Technical Field] The present invention is mainly concerned with the construction of a method that firmly connects the reinforcing bars of the two when pouring earthen floor concrete or an attached foundation into the rising part of a cloth foundation for residential use. This relates to a method of joint construction between cloth foundations and earthen floor concrete, etc., for construction in the state of construction.

[Prior art]

Foundations for houses are structurally designed to bear the load of the building, but sometimes concrete is cast on a flat surface to form part of the foundation, such as for entrances, bathrooms, etc., and these are conventionally referred to as dirt floor concrete. Also, furthermore,
Similar to this earthen floor concrete, an accessory foundation, that is, an accessory foundation, may be provided to support some parts of the building.

In terms of construction, both the earthen floor concrete and the attached foundation are constructed by pouring the concrete for the foundation 1 with the reinforcing bars 2 inside, then placing the reinforcing bars 2 horizontally, and then building the formwork. It is assembled and concrete is poured to create soil floor concrete 3, etc. It looks like it is integrated unlike cloth foundation 1, but it is not connected to cloth foundation 1, and both are connected by horizontal reinforcing bars 2. If these are not connected, only the concrete floor 3 may sink in the direction of arrow D, and this also applies to the attached foundation.

Therefore, in order to prevent the dirt floor concrete 3 and the attached foundation from becoming separated from the cloth foundation 1 and sinking or tilting, it is necessary to insert reinforcing bars 2 through the joint between the two so that they become integrated with the cloth foundation 1. Is required.

In other words, Fig. 10 shows reinforcing bars 2 passing through between the cloth foundation 1 and the concrete floor 3 on one side.
Figure 11 shows the cloth foundation 1 and the concrete floor 3 on both sides.
Furthermore, in FIG. 12, the reinforcing bars 2 are passed through between the cloth foundation 1 and the attached foundation 4 on one side.

As mentioned above, cloth foundation 1 and earthen floor concrete 3
Or, when inserting reinforcing bars 2 that penetrate the attached foundation 4, if the formwork of the cloth foundation 1 is made of wood, the first
As shown in Figure 3, a hole 6 is made in the formwork 5 to accommodate the reinforcing bar 2, and with the reinforcing bar 2 protruding from the formwork 5 through the hole 6, concrete for the cloth foundation 1 is first poured. , the formwork 5 is removed, and dirt floor concrete 3 is poured at the position of the reinforcing bars 2 protruding from the side surface of the cloth foundation 1 as shown by broken lines.

In the above case, the holes 6 are made in the formwork 5, and the formwork 5 must be repaired frequently, so this method is not often used in practice.

Next, when the formwork 5 is made of metal such as metal form, unlike when it is made of wood, holes 6 cannot be easily provided, so if it is absolutely necessary to connect it with reinforcing bars 2, do the following. Use methods.

That is, after fixing reinforcing bars 2 bent into a crank shape with a part of them along the formwork 5 as shown in Fig. 14 to a part of the cloth foundation 1, concrete is poured and the formwork 5 is removed. Since a part of the reinforcing bar 2 is exposed, bend it back as shown by arrow B in FIG. 15 and make it horizontal.

However, in the case of this method, the surface of the cloth foundation 1 becomes tattered, so the part indicated by the arrow There will be steps indicated by .

Furthermore, in view of the properties of the reinforcing bars 2, so-called bending back is extremely undesirable.

As explained above, there is currently no comparable method of arranging reinforcing bars 2 that connect the cloth foundation 1 and the earthen concrete floor 3 or the attached foundation 4.

[Purpose of the invention]

As explained in the conventional example above, when pouring earth concrete or an attached foundation to the rising part of a cloth foundation, the present invention allows reinforcing bars to penetrate and connect both to be easily and inexpensively installed. The purpose is to provide a construction method that allows construction.

[Structure of the invention]

In order to achieve the above object, the method of jointing a cloth foundation with earthen floor concrete, etc. of the present invention is mainly for joining with earthen concrete floor or attached foundation, etc. on one or both sides of the rising part of a cloth foundation for residential use. A socket having a threaded part provided at the end of a threaded bar installed as a reinforcing bar inside the concrete floor, etc., and a threaded part that can be screwed is held to the reinforcing bar in the above-mentioned rising part via a joint pin, etc. After pouring concrete for the rising portion, the threaded portion of the screw bar is screwed into the threaded portion of the socket, and concrete for the dirt floor, etc. is poured.

By using this construction method, it is possible to easily and firmly attach earthen floor concrete, etc. to the cloth foundation without having to drill holes for reinforcing bars in the formwork for the cloth foundation or bending back the reinforcing bars for penetration. can be inherited.

〔Example〕

Examples using the construction method of the present invention will be described below with reference to the drawings. In each example, the same parts are indicated by the same part numbers. FIG. 2 is a longitudinal cross-sectional view of Example 1 for explaining the joint construction method, and FIG. 2 is a plan view of FIG. 1.

First, this Example 1 shows a case where two earthen concrete floors 3 are installed on the same plane on the left and right sides with a cloth foundation 1 in between, and each earthen floor concrete 3 on both sides of the rising part of the cloth foundation 1 is Each end of the socket 9 shown in FIG. 5 has a convex screw portion 8A of the threaded bar 8 shown in FIG. A joint pin 10 shown in FIG. 6 is screwed into each of the left and right sockets 9 so as to hold the parts.

In this state, formwork (not shown) is set on both sides of the rising part, but at this time, after marking the position of the concrete floor 3, insert the joint pins 10 with the sockets 9 on both sides. Hold it horizontally according to the marks, and turn one socket 9 to fully expand both formworks and fix it.

In this case, if upper width stoppers are applied to the left and right formworks, the ends of each socket 9 and the formworks will tightly adhere to each other.

As described above, once the predetermined number of joint pins 10 with sockets 9 have been installed and fixed,
Either tie these to the reinforcing bar 2 at the rising part with wire, or
Or fix it firmly by welding.

Next, when concrete is poured for the rising part of the foundation 1 and the formwork is removed, the concave threaded part 9A of the socket 9 will appear on the concrete surface, and the convex part of each threaded bar 8 of the earthen floor concrete 3 will appear on the concrete surface. The screw portion 8A is screwed in, and then the concrete for the earthen floor 3 is cast using a formwork for concrete for the earthen floor (not shown).

In this way, the screw bar 8, the socket 9, and the joint pin 10 penetrate the cloth foundation 1 and the earthen floor concrete 3 on both sides thereof, and are firmly connected.

Next, in Example 2 of FIG. 3, the cloth foundation 1
This is an example in which the earthen floor concrete 3 is connected to one side of the rising part of the concrete floor.In this case, the L-shaped anchor pin 11 shown in FIG. There is.

In this case, align the socket 9 screwed onto the threaded part 11A of one end of the anchor pin 11 at the position of the concrete floor 3, tie or weld the anchor pin 11 to the reinforcing bar 2 at the rising part, and rotate the socket 9. It is pressed against the formwork.

Furthermore, Embodiment 3 in FIG. 4 is an example in which a concrete floor 3 with steps on both sides of the rising part of the cloth foundation 1 is poured, and in this case, anchor pins 11 and sockets are installed in the same manner as in Embodiment 2. 9 is held in the formwork and concrete is poured.

Note that the construction method of the present invention can be effectively applied to an attached foundation 4 other than the earthen floor concrete 3 as shown in FIG. 12 by using the same procedure.

〔Effect of the invention〕

As explained above, if the construction method of the present invention is adopted, when pouring earthen concrete or an attached foundation to the rising part of a cloth foundation, it is possible to easily and inexpensively install reinforcing bars that pass through both to connect them. This has the advantage that reinforcement can be placed at a reasonable construction cost.

Further, if the present invention is adopted, metal formwork can be used, and the cloth foundation and the earthen floor concrete can be firmly integrated, so there is an advantage that settling of the earthen floor concrete, etc. can be completely prevented.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view of Example 1 explaining the method of joint construction between a cloth foundation and earthen floor concrete of the present invention, Fig. 2 is a plan cross-sectional view of Fig. 1, and Fig. 3 and Fig. 4 are other examples. This is a vertical cross-sectional view for explaining the joint construction method of the embodiment, and the third
The figure shows the second embodiment, and FIG. 4 shows the third embodiment. FIGS. 5 to 8 are drawings of parts used in the construction method of each embodiment of the present invention. The figure is a side sectional view of the socket, Figure 6 is a side view of the joint pin, Figure 7 is a side view of the anchor pin,
Figure 8 shows a side view of the threaded bar, and further Figures 9, 10, 11, and 12.
13, 14, and 15 are explanatory diagrams of conventional methods of pouring concrete, etc., onto cloth foundations according to the prior art. 1...Cloth foundation, 3...Earth floor concrete, 4...
...Accessory foundation, 8...Threaded bar, 8A...Convex threaded part, 9...Socket, 9A...Concave threaded part, 10...
...Joint pin, 11...Anchor pin.

Claims (1)

[Claims] 1 At the joint part of the rising part of the cloth foundation with the earthen floor concrete, etc., a socket having a threaded part that can be screwed into the threaded part of a threaded bar installed as a reinforcing bar inside the earthen floor concrete, etc. is attached to the said rising part. A method for joining cloth foundations with earthen floor concrete, etc., in which the concrete is fixed to the reinforcing bars of the foundation, concrete is poured at the rising part, and then the threaded bar is screwed into the socket to join the earthen floor concrete, etc.