JP2005299318A - Foundation structure and its execution method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foundation structure and its execution method capable of reducing the working volume at the construction site and saving labor and power, and reducing the construction period. <P>SOLUTION: A foundation structure is constituted of a plurality of blocks 12 arranged on a bed 11, metallic long through members 13 arranged on these blocks 12, and a plurality of fastening members 14 erected on the bed 11 and fixing the through member 13 to the blocks 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a foundation structure using a PC block (precast concrete block) and a construction method thereof.

  As shown in FIG. 12, a concrete base formwork 1 having a side wall 2 and 3 facing each other and a bottom 4 connecting the side walls 2 and 3 and forming a groove having a predetermined length, One side wall 2 protrudes above the other side wall 3, and when the basic formwork 1 is buried in the ground, the protruding portion 2 protrudes to the ground at a predetermined height, and a lightweight concrete panel (not shown) Precast concrete foundation formwork that can be supported separately from the ground has been released.

Here, the code | symbol 5 is an embedding metal fitting and is used for the lower part fixation of the lightweight concrete panel mounted on it (for example, refer patent document 1).
Japanese Patent Laid-Open No. 11-131657 (paragraph number “0007”, FIG. 1)

  When constructing the foundation of a reinforced building using this foundation formwork 1, first excavate the ground and dig a groove to install the foundation underground beam, lay gravel on the bottom of the groove and roll it flat. After pressing, in order to further flatten the bottom, cast concrete is placed and hardened, and then a plurality of the above-mentioned foundation molds 1 are installed according to the length of the underground beam, and then made of steel. After dropping the beam into the basic formwork 1 and placing concrete, the work at the site is diverse and the construction period is inevitably prolonged.

That is, the conventional formwork method has a problem that the construction period is not shortened for the following reasons (1) to (9).
(1) Multi-business companies such as formwork carpenters, reinforcing bars, anchors and earthwork are necessary. (2) Piping for raw concrete placement is required, and extra time is required for moving the formwork. (3) Even if one of the above companies is missing, the work of the next company will be hindered, and it will be difficult to grasp the construction period. (4) The site is dirty due to live-con placement. (5) A cleaning fee is required. (6) An embedded metal fitting is required for mounting a panel or the like. (7) Since there is unevenness, mortar adjustment is required. (8) It is expensive. (9) After dismantling the formwork, construction by the next company cannot be performed until the concrete strength is achieved.

  The present invention has been made to solve such a conventional problem, and its object is to reduce the amount of work at the site, save labor and shorten the construction period. And providing a construction method thereof.

In order to achieve the above object, the present invention is configured as follows.
The foundation structure according to the invention of claim 1 is provided with a plurality of blocks arranged on a base, a long metal through member arranged on these blocks, and standing on the base, and , And a plurality of fastening members for fixing the through member to the block.
In the basic structure according to the second aspect of the present invention, when an outer wall is attached to the block, a support plate for fixing the outer wall is provided on the through member at a constant interval.
In the basic structure according to the third aspect of the present invention, angle steel is applied to the through member.
In the basic structure according to the fourth aspect of the present invention, when attaching a partition wall to the block, flat steel is applied to the through member.
The foundation structure which concerns on invention of Claim 5 applies a precast concrete block to the said block.
In the construction method of the foundation structure according to the invention described in claim 6, when constructing the foundation structure composed of a plurality of blocks on the foundation, (a) the foundation is leveled by a level adjusting material such as a water repellent mixed mortar. (B) Place the blocks one by one on the base after level adjustment, and (c) install a fixing member such as an anchor on the base portion corresponding to the fastening member insertion portion at the end of the block. (D) A fastening member is attached to the fixing member, and the above-described steps (a) to (d) are repeated to construct a foundation portion having a predetermined length. Subsequently, a long metal piece is passed through the foundation portion. After the member is installed, the through member is fixed to the block by the fastening member.
In the construction method of the foundation structure according to the invention described in claim 7, when constructing a foundation structure composed of a plurality of blocks on the foundation, (a) the foundation is leveled by a level adjusting material such as a water repellent mixed mortar. Adjusting, (b) placing the blocks one by one on the base after level adjustment, (c) standing a fastening member on the base portion corresponding to the fastening member insertion portion at the end of the block, d) The fastening member is fixed to the base by a fixing member such as Hilti, and the steps (a) to (d) are repeated to construct a base portion having a predetermined length. Subsequently, the base portion is made of metal. A long threading member is installed, and then the threading member is fixed to the block by the fastening member.

  The foundation structure according to the invention of claim 1 is provided with a plurality of blocks arranged on a base, a long metal through member arranged on these blocks, and standing on the base, and Since it is composed of a plurality of fastening members for fixing the threading member to the block, the structure becomes simpler than before and the amount of work on site is greatly reduced. For this reason, it is possible to save labor and shorten the construction period.

Furthermore, the basic structure according to the first aspect of the present invention has the following effects.
(1) One company is sufficient for construction. (2) Lifting can be done by lift. (3) The construction period can be grasped and the planned quantity can be constructed. (4) The site is clean because there is no live concrete placement. (5) No cleaning fee is required. (6) A panel mounting base such as ALC can be formed in one shot. (7) Since there is no unevenness, a sufficient seal can be secured. (8) It is inexpensive. (9) After the PC block is installed, the construction of the next company can be performed immediately.

  On the other hand, in the construction method of the foundation structure according to the invention described in claim 6, when constructing a foundation structure composed of a plurality of blocks on the base, (a) the base is made of a level adjusting material such as a water repellent mixed mortar. (B) The blocks are arranged one by one on the base after level adjustment, and (c) a fixing member such as an anchor is attached to the base portion corresponding to the fastening member insertion portion at the end of the block. And (d) attaching a fastening member to the fixing member, constructing a base portion having a predetermined length by repeating the operations (a) to (d), and subsequently forming a metal long piece on the base portion. Since a threading member is installed and then the threading member is fixed to the block by the fastening member, the amount of work at the site is greatly reduced compared to the prior art. For this reason, it is possible to save labor and shorten the construction period.

Furthermore, the foundation construction method according to the invention of claim 6 has the following effects.
(1) One company is sufficient for construction. (2) Lifting can be done by lift. (3) The construction period can be grasped and the planned quantity can be constructed. (4) The site is clean because there is no live concrete placement. (5) No cleaning fee is required. (6) A panel mounting base such as ALC can be formed in one shot. (7) Since there is no unevenness, a sufficient seal can be secured. (8) It is inexpensive. (9) After the PC block is installed, the construction of the next company can be performed immediately.

  In addition, when the foundation structure construction method according to the invention of claim 7 is used to construct a foundation structure composed of a plurality of blocks on the base, (a) the base is made of a level adjusting material such as a mortar mixed with a water repellent. (B) The blocks are arranged one by one on the base after level adjustment, and (c) the fastening member is erected on the base portion corresponding to the fastening member insertion portion at the end of the block. (D) The fastening member is fixed to the base by a fixing member such as Hilti, and the steps (a) to (d) are repeated to construct a base portion having a predetermined length, and then the base portion is made of metal. Since a long through member made of metal is installed, and then the through member is fixed to the block by the fastening member, the amount of work on site is greatly reduced compared to the conventional case. For this reason, it is possible to save labor and shorten the construction period.

Furthermore, the foundation construction method according to the invention of claim 7 has the following effects.
(1) One company is sufficient for construction. (2) Lifting can be done by lift. (3) The construction period can be grasped and the planned quantity can be constructed. (4) The site is clean because there is no live concrete placement. (5) No cleaning fee is required. (6) A panel mounting base such as ALC can be formed in one shot. (7) Since there is no unevenness, a sufficient seal can be secured. (8) It is inexpensive. (9) After the PC block is installed, the construction of the next company can be performed immediately.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, the foundation structure for attaching the outer wall will be described, and then the foundation structure for attaching the partition will be explained.

(1) Foundation structure for attaching the outer wall In FIG. 1, reference numeral 10a denotes a foundation structure for attaching the outer wall. ) 12, a long angle steel 13a disposed on the PC block 12, and a plurality of fastening members that stand on the base 11 and fix the angle steel 13a to the PC block 12 14. The fastening member 14 includes a fastening bolt 15 and a fastening nut 16.

  The fastening bolt 15 is provided in a vertical hole 28 formed by combining groove-like fastening member insertion portions 18 provided on both end faces of the PC block 12. In addition, the fastening bolt 15 is fixed to the base 11 using a fixing member 19a such as an anchor provided at the lower end portion thereof.

  Two plates 21 and 22 are provided between the PC block 12 and the angle steel 13a, and a washer 23 is provided below the fastening nut 16. The vertical hole 28 is filled with a filler such as a mortar mixed with a water repellent as required.

  In addition, a support plate (inazuma plate) 24 is attached to the angle steel 13a at regular intervals, and a precast concrete block outer wall 40 installed on the foundation structure 10a is fixed. At that time, as shown in FIG. 2, the embedded metal fitting 41 embedded in the outer wall 40 and the support plate 24 are coupled by a bolt 25.

As shown in FIGS. 1 and 2, the level of the portion of the reinforced concrete base 11 on which the PC block 12 is installed is adjusted by a water repellent mixed mortar 20.
In the figure, reference numeral 26 is an anchor steel rod, 27 is a backup material, 29 is a sealing material, and 30 is a sealing material filling groove provided at the joint of the PC block 12.

Subsequently, the construction method of the above-described foundation structure will be described with reference to FIGS.
(A) First, as shown in FIG. 3, the level of the surface of the base 11 made of reinforced concrete is adjusted with a water repellent mortar 20.
In FIG. 3, reference numeral 12 is a PC block already laid on the base 11, 15 is a fastening bolt, and 19a is an anchor.

  (B) Next, as shown in FIG. 4, one PC block 12 is laid on the base 11 after level adjustment.

  (C) Next, as shown in FIG. 5, an anchor 19 a is driven into the base portion corresponding to the groove-shaped fixing member insertion portion 18 on the distal end surface of the PC block 12 just after laying.

  (D) Next, as shown in FIG. 6, the fastening bolt 15 is attached to the anchor 19 a driven into the base 11.

  (E) Next, the above-described operations (a) to (d) are repeatedly performed to construct a basic portion having a predetermined length.

  (F) Subsequently, as shown in FIG. 7, after the angle steel 13 a is arranged on the foundation portion, the angle steel 13 a is fixed to the PC block 12 by the fastening nut 16.

By the way, as shown in FIG. 8, the PC block 12A used for the corner portion of the foundation structure 10a has one fastening member insertion portion 18A in a hole shape, and the fastening bolt 15 is inserted therein. ing.
Further, as shown in FIG. 9, the PC block 12 </ b> B in the portion under the opening where a door or the like is installed is provided with hole-shaped fastening member insertion portions 18 </ b> A on both sides thereof.

(2) About the base structure for partition mounting Next, the base structure 10b for partition mounting will be described (see FIGS. 10 and 11). The explanation is omitted.

  They are very similar, but the outer wall mounting foundation structure 10a uses angle steel 13a as the threading member, whereas the partition mounting foundation structure 10b uses flat steel 13b as the threading member. Is different. Further, in the outer wall mounting foundation structure 10a, the outer wall 40 is bolted, whereas in the partition mounting foundation structure 10b, the L-shaped plate 51 provided on the partition 50 made of precast concrete is welded to the flat steel 13b. doing. Reference numeral 52 indicates a welded portion.

  Moreover, both construction methods are similar, but when constructing the partition mounting foundation structure 10b, fastening bolts 15 are erected on the base portion corresponding to the groove-like fastening member insertion portion 18 of the PC block 12. Thereafter, the difference is that the support plate 17 provided at the lower end of the fastening bolt 15 is fixed to the base 11 by a fixing member 19b such as Hilti.

  The foundation structure and its construction method of the present invention can be used for construction of any concrete structure.

It is a perspective view of the foundation structure for outer wall attachment. It is sectional drawing of the foundation structure for outer wall attachment. It is explanatory drawing which adjusted the level of the base | substrate. It is explanatory drawing which has arrange | positioned the PC block to the base | substrate after level adjustment. It is explanatory drawing which installed the anchor on the base. It is explanatory drawing which attached the fastening bolt to the anchor. It is explanatory drawing which fixed the threading material to the base part. It is a top view of a corner part. It is a front view of the basic structure of an opening part. It is a perspective view of the basic structure for partition attachment. It is sectional drawing of the basic structure for partition attachment. It is a perspective view of the conventional basic formwork.

Explanation of symbols

11 Base 12 Block 13a, 13b Passing member 14 Fastening member

Claims (7)

  A plurality of blocks disposed on the base, a long metal through member disposed on these blocks, and a plurality of blocks standing on the base and fixing the through member to the block A basic structure consisting of fastening members.   The base structure according to claim 1, wherein when an outer wall is attached to the block, a support plate for fixing the outer wall is provided in the through member at a predetermined interval.   The foundation structure according to claim 2, wherein angle steel is applied to the threading member.   The base structure according to claim 1, wherein when the partition wall is attached to the block, flat steel is applied to the through member.   The foundation structure according to claim 1, wherein a precast concrete block is applied to the block.   When constructing a foundation structure composed of a plurality of blocks on the base, (a) the base is level-adjusted with a level adjusting material such as a water repellent mixed mortar, and (b) the block is placed on the base after level adjustment. One by one, (c) a fixing member such as an anchor is installed on the base portion corresponding to the fastening member insertion portion at the end of the block, (d) the fastening member is attached to the fixing member, A base part having a predetermined length is constructed by repeating the operations a) to (d), and then a metal long threading member is installed on the foundation part. After that, the threading member is moved by the fastening member. The construction method of the foundation structure fixed to the said block. When constructing a foundation structure composed of a plurality of blocks on the base, (a) the base is level-adjusted with a level adjusting material such as a water repellent mixed mortar, and (b) the block is placed on the base after level adjustment. One by one, (c) a fastening member is erected on the base portion corresponding to the fastening member insertion portion at the end of the block, and (d) the fastening member is fixed to the base by a fixing member such as Hilti Then, the above-described operations (a) to (d) are repeated to construct a foundation portion having a predetermined length, and subsequently, a metal long threading member is installed in the foundation portion. The construction method of the foundation structure fixed to the block by the fastening member.

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