JPH045333A - Construction method and structure of foundation for building house and foundation structure unit - Google Patents

Abstract

PURPOSE:To obtain a strong foundation structure in a short period by arbitrarily combining various concrete-made foundation structural units and connecting flat bars by filling a junction part thereof with mortar. CONSTITUTION:A corner unit 1 of L-shaped plane shape, crossing part unit 3 of crossed shape, butt part unit 2 of T shape and a linear unit 5 of straight shape are formed. Each unit 1, 2, 3, 5 is formed in a section of protrusive shape respectively by a base part 11 and a riseup part 12 and provided in a horizontal direction in a condition that a flat bar 14 is raised so as to cross with a foundation steel bar 13 in a width direction in the inside. Next, an anchor member 15 is vertically provided from the riseup part 12, and opposed recessed parts 17 are filled with mortar by connecting both end parts of the flat bar 14 in the recessed part 17 while longitudinally providing it in a connection end surface 16 of the base part. In this way, foundation construction can be simplified by eliminating necessity for work of mold form building or the like.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method of constructing a foundation in house construction using a foundation structure unit, a foundation structure constructed by this method, and a foundation structure unit used therein. be.

[Conventional technology] In recent house construction, since the entire building is lightweight, the basic structure is constructed by constructing a formwork on a foundation made of cracked stone, etc., and pouring a cloth foundation, etc. into concrete. In most cases, columns and the like are fixed using anchor bolts erected from the cloth foundation.

[Problem to be solved by the invention] However, in the case of conventional concrete foundations, the construction method involves constructing formwork and pouring concrete after cutting the ground, making it troublesome to create formwork for each partition. There were disadvantages such as high cost and the number of days it took for the conch notebook to dry.

The first object of the present invention is to eliminate the above-mentioned conventional drawbacks, eliminate the need for work such as mold work when constructing a foundation, and shorten the foundation construction work as much as possible, thereby reducing costs. A second object of the present invention is to provide a foundation construction method for building a house that is robust and cost-reduced. To provide a foundation structure unit which allows easy horizontal construction.

[Means for Solving the Problems] In order to achieve the above object, the foundation construction method for building a house according to the present invention includes a corner unit whose planar shape is an "L" shape, and a "cross" shape corner unit. A concrete foundation structure consisting of a shaped unit for intersections, a "T" shaped unit for abutting parts, and a straight shaped unit for straight parts of a predetermined unit length. A construction method that connects and consolidates units by arbitrarily combining them,
Each unit is formed into a substantially convex cross section with a base part and a rising part, and a flat bar is installed horizontally inside to intersect with the foundation reinforcing bars in the width direction, and an anchor member is installed from the rising part. A recess is provided vertically on the joint end surface of the base, and both ends of the flat bar protrude from the recess, and each unit is selectively used and laid on a foundation made of split stone or the like. This is a construction method in which the ends of the flat bars are connected within the recesses of the joint end faces of each unit, and the holes formed by the opposing recesses at the joints of the connected units are filled with mortar.

In this case, the length of the base part of each unit is made longer than the rising part so that the base parts abut against each other and are joined together, and concave parts are formed on the left and right sides of the base part, so that the rise of the joined units The gap formed between the parts can also be filled with mortar using a simple mold.

Furthermore, as a unit in this case, flat bars are installed at three points, one on the rising part and two on the left and right sides of the base, and both ends of the flat bar placed on the rising part are arranged at three points. By connecting within the gap formed between the joined rising portions, a three-point connection can be made and a stronger connection can be achieved.

If the shape of the recess formed in the joining end face is semicircular, it will be easier to rotate the tool when connecting the flat bars with bolts, nuts, etc.

The foundation structure constructed as described above connects the flat bars of each foundation structure unit and fills the joints with mortar, so it is equivalent to or similar to a concrete-cast cloth foundation. The above strength can be obtained, and each unit can be manufactured in large quantities at a factory, resulting in a significant cost reduction.

[Function] The corner unit has an “L” shape in plan view, the intersection unit has a “±” shape, and the “T” shape.
A concrete foundation structure unit is produced in a factory, consisting of a unit for the abutting part in the shape of a letter and a unit for the straight part in a straight shape with a predetermined unit length, but the cross-sectional shape of each unit is similar to that of the foundation. so that the part and the rising part form a substantially convex shape, and a concave part is formed on the joint end surface,
Inside, a flat bar is placed horizontally to intersect with the foundation reinforcing bars in the width direction, and the end of the flat bar protrudes from the recess in the joint end surface, and the bottom end is flat from the rising part. An anchor member connected to the bar is erected.

In this case, the length of the base should be longer than the rising part (so that the base parts are joined together), the recesses should be formed on the left and right sides of the base, and the flat bars should be of the same length on the rising part. Three points are arranged, one in the center and one on each of the left and right sides of the base.The recesses are preferably formed in a semicircular shape.

There are multiple types of linear section units with predetermined unit lengths (for example, 455 mm, 910 mm, and 1820 mm).
(mm, etc.) Prepare.

During construction, a foundation is formed using cracked stone, etc., each unit is selected and placed on top of it, the joint end faces of each unit are joined, and the ends of the flat bars are inserted into the holes formed by the opposing recesses. Connect the parts with bolts, nuts, etc.

In this case, the concave portion is formed in a semicircular shape (this prevents damage to the corners, etc., and makes it easy to rotate tools such as spanners. Link.

A simple mold member is used to fill the gaps between the rising parts of the units joined in this way with mortar, and also fill the holes formed in the joined parts of the base parts with mortar.

The foundation structure constructed as described above dries quickly because the mortar is only partially filled, and each unit is joined at the joint end face and connected by a flat bar, creating a strong connection. Therefore, the next work can be carried out even when the mortar is not dry.

In addition, the foundation structure is a one-piece planar structure, and each unit is integrally connected to form an integrated structure, and the flat par is placed in an upright position, so it can withstand enormous vertical loads. Mechanical strength can be obtained, which is greater than that of conventional cloth foundations.

[Example] An example of the present invention will be described based on the drawings, and for convenience of explanation, each unit will be described first.

In Figs. 10 and 11, 1 to 7 are concrete foundation structure units, and 1 is, as shown in Fig. 3,
Corner unit with an “L” shape in plan view, 2
As shown in FIG. 4, 3 is a unit for the abutting section which is also shaped like a "T"; 3 is a unit for an intersection section which is also shaped like a "cross" as shown in FIG. 5; Reference numerals 4, 5, and 6 denote units for straight sections of a predetermined unit length, which are also straight-shaped, and as will be described in detail later, three types of units with different lengths are shown. And FIG. 2 shows a unit 5 for a straight section having an intermediate length.

Reference numeral 7 denotes a straight section terminal unit disposed at the end of the straight section.

As shown in FIGS. 1 and 2, each unit 1 to 7 is formed with a base portion 11 and a rising portion 12 to have a substantially convex cross section,
Inside, a flat bar 14 is provided horizontally in an erected state so as to intersect with the foundation reinforcing bars 13 in the width direction, and an anchor member 15 stands up from the rising part 12, and the joint end surface of the base part 11 A recess 17 is provided vertically in the recess 16, and the end of the flat parr 14 projects from the recess 17.

In the embodiment, the length of the base part 11 is longer than the length of the raised part 12 (so that the base parts 11 are joined together), and the recesses 17 are formed on the left and right sides of the base part 11. , flat pars 14 of the same length were arranged at three points, one in the center of the rising part 12 and one on each of the left and right sides of the base part 11.Furthermore, the recessed part 17 was formed in a semicircular shape. The anchor member 15 has its upper end threaded to form an anchor bolt, and its lower end is welded to the foundation reinforcing bar 13, and the foundation reinforcing bar 13 is welded to the lower end of the flat par 14.

A plurality of straight section units having predetermined unit lengths were prepared, including a 455 mm straight section unit 4, a 910 mm straight section unit 5, and a 1820 mm straight section unit 6. Further, as a terminal unit, a linear section terminal unit 7 was prepared in which no recess was formed on one end side and the end of the flat par 14 was not protruded.

During construction, a foundation 20 is formed using a split stone 21 or the like, and each unit is selected and placed on it, and the joint end surfaces 16 of each unit are brought into contact with each other, and each unit is placed in the hole formed by the opposing recess 17. Bolts and nuts 18 are connected between the ends of the flat pars 14 through their connecting holes 14a.
Connect with. In this case, since the concave portion is formed in a semicircular shape, it is possible to prevent the corners from being damaged, and it is also possible to easily rotate a tool such as a spanner in the horizontal direction. Further, the flat pars 14 disposed on the rising portion 12 are also connected in the same manner.

Next, the gap between the rising parts 12 and 12 of each unit joined in this way is filled with mortar 19 using a simple formwork member (not shown), and the base part 11 is filled with mortar 19.
The mortar 19 is also filled in the hole formed by the recesses 17 facing each other in the joint end surface 16 of. By constructing in this way, the unit connection structure section 10 of an integral structure consisting of a unit assembly is formed on the base section 20.

[Effects of the Invention] According to the present invention, ■ The foundation can be constructed in a short period of time.■ It is a unit-connected foundation structure, and it has an integrated planar structure and each unit is connected with a flat par, so it is easy to level the planar surface. Positioning is easy ■ Units are integrally connected and consolidated, ensuring strength equal to or greater than that of a fabric foundation structure ■ Flat bars are placed in an upright position within each unit Because of this, great strength can be obtained against vertical loads.■ Each unit can be mass-produced in a factory, resulting in significant cost reductions.■ Standardized and homogenized units provide stable performance. It has the effect of being able to build the foundation, etc.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, FIG. 1 having a length of 910 mm.
FIG. 2 is a plan view of the unit for straight sections, FIG. 3 is a plan view of the corner unit, FIG. 4 is a plan view of the unit for abutting sections, and FIG. 5 is a plan view of the unit for intersection sections. A plan view, FIG. 6 is a plan view of the terminal unit for the straight section, FIG. 7 is a side view of the units connected, FIG. 8 is a plan view of the same, and FIG. 9 is the unit connection structure installed on the foundation. FIG. 10 is a plan view of a foundation construction arrangement for building a house, and FIG. 11 is a plan view showing another example of the same. 1; Corner unit, 2; Abutment unit 3:
Units for intersections, 4, 5, 6; Unit 7 for straight sections;
Terminal unit for straight section 10, unit connection structure section, 11; base section 12: rising section, 13. Foundation reinforcing flat bar, 15, anchor member joint end surface, 17° recess, 18; bolt/nut mortar, 20; foundation part, 21; split stone patent applicant

Claims (1)

[Scope of Claims] 1. A construction method for building the foundation of a house by arbitrarily combining concrete foundation structure units of various shapes and connecting and solidifying them, the units to be used being: The planar shape of each is “L”
A corner unit in the shape of a letter, a unit for the intersection in the shape of a “cross,” a unit for the abutting portion in the shape of a “T,” and a unit for the predetermined unit length in the shape of a straight line. As a unit for straight sections, each unit is formed into a substantially convex cross section with a base part and a rising part, and a flat bar is installed horizontally inside to intersect with the foundation reinforcing bars in the width direction. Install the anchor member upright from the rising part,
A recess is provided vertically on the joint end surface of the base, and the end of the flat bar is made to protrude from the recess, and each unit is selectively used and laid on a foundation made of split stone, etc. A method for constructing a foundation for building a house, characterized by connecting the ends of flat bars within a recess in a joint end face, and filling a hole formed by the opposing recesses at the joint of the connected units with mortar. 2. The base part of each unit is longer than the rising part, and the base parts are joined together, and the flat bar is also buried in the rising part and protrudes from the side of the rising part when connecting the units. 2. The method for constructing a foundation for building a house according to claim 1, wherein the ends of the flat bars are connected to each other and the gaps between the rising parts of adjacent units are filled with mortar using a simple formwork. 3. Consisting of a foundation made of split stone, etc., and a unit connection structure that is installed on the foundation and is made by arbitrarily combining concrete foundation structure units of various shapes and connecting and solidifying them. , each unit has an "L"-shaped corner unit, a "cross"-shaped intersection unit, a "T"-shaped abutment unit, and a straight unit with a predetermined unit length. It consists of a unit for the straight section of the
Each unit has a base part and a rising part that have a generally convex cross-section, and inside the unit, a flat bar is installed horizontally so as to intersect with the foundation reinforcing bars in the width direction, and anchors are attached to the rising part. The member is erected, and a recess is provided vertically on the joint end surface of the base, and the end of the flat bar protrudes from the recess, and each unit is inserted into the recess of the joint end surface of the flat bar. A basic structure for building a house, characterized in that the ends are connected and the holes formed by opposing recesses on the joint end faces are filled with mortar. 4. A foundation structure unit for constructing the foundation of a house by arbitrarily combining and connecting concrete units of various planar shapes, each of which has an approximately inverted T-shape in longitudinal section. Therefore, each foundation structure unit has an "L" planar shape.
A unit for corners in the shape of a letter, a unit for the intersection in the shape of a "cross," a unit for the abutting part in the shape of a "T," and a unit for straight sections of a predetermined unit length in the shape of a straight line. Each unit has a base part and a rising part that have a substantially convex cross-section, and a flat bar is installed horizontally inside to intersect with the foundation reinforcing bars in the width direction. At the same time, an anchor member stands up from the rising part, and a recess is provided vertically on the joint end face of the base part, and the end of the flat bar protrudes from the recess, and the end of the flat bar is inserted into the recess on the joint end face of each unit. A basic structure unit characterized in that the holes formed by the opposing recesses of the joint end surfaces are filled with mortar when the ends of the flat bars are connected. 5. The foundation structure unit according to claim 4, wherein the flat bar is provided at one location on the rising portion and at two locations on the left and right end sides of the base portion. 6. The foundation structure unit according to claim 4, wherein the recess has a semicircular shape. 7. The foundation structure unit according to claim 4, wherein the base portion is formed longer than the rising portion, and the base portions are connected to each other.