CN111705829A - Building foundation structure and construction process thereof - Google Patents

Abstract

The invention relates to a building foundation structure and a construction process thereof, wherein the building foundation structure comprises four right-angle pieces and four connecting rods, and the four connecting rods and the four right-angle pieces form a rectangular frame; a first connecting piece is arranged between the right-angle piece and the connecting rod; the two connecting rods positioned on the two sides of the width direction of the frame are set as first connecting rods, and the two connecting rods positioned on the two sides of the length direction of the frame are set as second connecting rods; a plurality of connecting plates are arranged between the two first connecting rods, and a plurality of reinforcing steel bar rods are arranged between the two second connecting rods; the two ends of the connecting plate are respectively provided with a second connecting piece, and the connecting plate is detachably connected with the two first connecting rods through the second connecting pieces; the top surface of the second connecting rod is provided with a plurality of lower locating grooves, two ends of the steel bar rod are respectively located in the two lower locating grooves, and the second connecting rod and the lower locating grooves are provided with pressing blocks. The installation process of reinforcing bar pole is simple convenient, and the mounted position influence to the second connecting rod is less, the concrete placement work in the later stage of being convenient for.

Description

Building foundation structure and construction process thereof

Technical Field

The invention relates to the technical field of building foundations, in particular to a building foundation structure and a construction process thereof.

Background

The building foundation is the foundation part of the building, and the through groove is built under the ground, so that the bearing part of the whole building and the quality of the foundation determine the stability of the building. When the foundation is constructed, a foundation pit required for constructing the foundation needs to be dug out on the ground, then the base of the foundation is installed in the foundation pit, and finally the concrete is used for pouring the base, so that the bearing and anti-seismic effects of the foundation are better.

At present, patent document CN107288142A discloses a building foundation assembly structure, which comprises four symmetrically arranged right-angle connecting pieces, a first connecting rod horizontally connected between the right-angle connecting pieces, and a second connecting rod vertically connected between the right-angle connecting pieces, a first pouring plate is matched between the two first connecting rods, the two ends of the first pouring plate are provided with first connecting plates matched with the first connecting rods, a second pouring plate is matched between the two second connecting rods, second connecting plates matched with the second connecting rods are arranged at two ends of the second pouring plate, the first pouring plate and the second pouring plate are arranged vertically in space, more than two insertion holes are formed in the rod body of the second connecting rod, the two insertion holes in the second connecting rod are arranged oppositely, and a steel bar rod is matched between the two insertion holes which are arranged oppositely. The first pouring plate and the second pouring plate are poured at the same time.

Among the above-mentioned prior art scheme, at the in-process of installation reinforcing bar pole, because in the reinforcing bar pole can only be pegged graft two jacks, and the length of reinforcing bar pole is longer, especially when the area of ground is great, in two jacks are difficult to be pegged graft to the reinforcing bar pole to rock appears in the position that makes two second connecting rods easily at the in-process of connecting the reinforcing bar pole, cause the influence to the work of pouring of follow-up ground.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a building foundation structure which has the advantages of simple and convenient installation process and stable structure and is convenient for the subsequent pouring work of the foundation.

The above object of the present invention is achieved by the following technical solutions:

a building foundation structure comprises four right-angle pieces and four connecting rods respectively arranged between two adjacent right-angle pieces, wherein the four connecting rods and the four right-angle pieces form a rectangular frame; a first connecting piece is arranged between the right-angle piece and the connecting rod;

the two connecting rods positioned on the two sides of the width direction of the frame are set as first connecting rods, and the two connecting rods positioned on the two sides of the length direction of the frame are set as second connecting rods;

a plurality of connecting plates which are distributed at intervals are arranged between the two first connecting rods, and a plurality of reinforcing steel bar rods are arranged between the two second connecting rods;

the two ends of the connecting plate are respectively provided with a second connecting piece, and the connecting plate is detachably connected with the two first connecting rods through the second connecting pieces;

the top surface of the second connecting rod is provided with a plurality of lower positioning grooves formed by downward sinking, the two ends of the reinforcing steel bar rod are respectively positioned in the corresponding lower positioning grooves on the two second connecting rods, and the second connecting rods and the lower positioning grooves are provided with pressing blocks for pressing the reinforcing steel bar rod in the lower positioning grooves.

By adopting the technical scheme, when the foundation is constructed, the four right-angle pieces are placed according to the size of the building area, and then the four connecting rods are respectively installed between the two right-angle pieces to form a frame; then a plurality of connecting plates and a plurality of reinforcing steel bars are arranged in the frame; and finally, pouring concrete in the frame, and forming a foundation after the concrete is solidified. Wherein, when the installation reinforcing bar pole, can directly put into down the constant head tank with the reinforcing bar pole from the top of two second connecting rods, install constant head tank department down with the briquetting again, make the briquetting compress tightly the reinforcing bar pole in constant head tank down, the installation of reinforcing bar pole is simple convenient, and the mounted position to the second connecting rod influences lessly, the concrete placement work in the later stage of being convenient for.

The present invention in a preferred example may be further configured to: the pressing block comprises an inserting rod and a cross rod, an upper positioning groove formed by upward sinking is formed in the bottom end of the inserting rod, the upper positioning groove and the lower positioning groove form a positioning hole matched with the steel bar rod when the inserting rod is inserted into the lower positioning groove, and the steel bar rod is pressed in the positioning hole by the inserting rod;

the cross rod is fixedly arranged at the top end of the inserted rod, first connecting holes are formed in the two sides of the inserted rod respectively on the cross rod, first bolts are arranged in the first connecting holes, and the cross rod is detachably connected with the first connecting rods through the first bolts.

Through adopting above-mentioned technical scheme, during the installation briquetting, in inserting the lower constant head tank with the inserted bar to make the horizontal pole overlap joint in the both sides of constant head tank down, insert two first bolts afterwards, twist and move first bolt, make first bolt press the briquetting to connecting rod one side, thereby drive the inserted bar and compress tightly the reinforcing bar pole downwards, make the reinforcing bar pole receive the packing force and be connected with the connecting rod is stable.

The present invention in a preferred example may be further configured to: the first connecting rod is provided with a yielding groove at the lower positioning groove, and the cross rod is positioned in the yielding groove to enable the top surface of the cross rod to be flush with the top surface of the first connecting rod.

Through adopting above-mentioned technical scheme, the groove of stepping down plays the positioning action to the horizontal pole to make the horizontal pole can not outstanding the top surface of head rod, reduce the ground surface flatness after to later stage concrete placement and cause the influence.

The present invention in a preferred example may be further configured to: the reinforcing steel bar rods are located above the connecting plates, and the reinforcing steel bar rods and the connecting plates are arranged in a staggered mode.

Through adopting above-mentioned technical scheme, because the length of reinforcing bar is longer, its middle part can receive gravity factor downwarping, a plurality of connecting plates then play the supporting role to the middle part of reinforcing bar pole, reduce the bending deformation degree of reinforcing bar pole, improve stability and shock resistance after the foundation is pour.

The present invention in a preferred example may be further configured to: the first connecting piece comprises a bottom plate fixedly arranged at one end of the right-angle piece and two side plates fixedly arranged at two sides of the bottom plate respectively;

the side plates are provided with second connecting holes, one ends of the connecting rods are inserted between the two side plates and are abutted against the bottom plate, second bolts are arranged in the second connecting holes, and the connecting rods are detachably connected with the two side plates through the second bolts.

Through adopting above-mentioned technical scheme, when the connecting rod is connected with the right angle piece, directly peg graft the connecting rod between two curb plates after, reuse the second bolt and pass two curb plates and connecting rod, make connecting rod and right angle piece link together, two curb plates play the positioning action to the connecting rod. And, the length of connecting rod can be changed according to the building area of difference, only need drill out the hole with second bolt looks adaptation at the both ends of connecting rod can, connect simply conveniently.

The present invention in a preferred example may be further configured to: the second connecting piece comprises a base plate arranged between the connecting plate and the connecting rod and a connecting block fixedly arranged on one side of the base plate close to the connecting plate;

the connecting block is provided with an inserting groove, the connecting plate is inserted in the inserting groove, a third connecting hole is formed in the connecting block, a third bolt is arranged in the third connecting hole, and the connecting plate is detachably connected with the connecting block through the third bolt;

the base plate is provided with fourth connecting holes on two sides of the connecting block respectively, fourth bolts are arranged in the fourth connecting holes, and the base plate is abutted against the connecting rod and detachably connected with the connecting rod through the two fourth bolts.

By adopting the technical scheme, when the connecting plate is installed, the two connecting blocks are firstly inserted into the two ends of the connecting plate, the connecting plate is placed between the two connecting rods along with the two second connecting pieces, the base plate is aligned with the connecting rods, the base plate is connected with the connecting rods by using the fourth bolts after the position between the base plate and the connecting rods is adjusted, and finally the connecting plate is connected with the connecting blocks by using the third bolts, so that the installation work of the connecting plate is completed.

The present invention in a preferred example may be further configured to: the third connecting hole is a waist-shaped hole.

Through adopting above-mentioned technical scheme, the grafting position of adjustable connecting plate in the connecting block to the interval between two base plates of adjustment, thereby offset the length of connecting plate and the error of interval between two connecting rods, make the installation of connecting plate more convenient.

The second purpose of the invention is to provide a construction process of the building foundation, which has the advantages of simple construction process and stable foundation structure.

The above object of the present invention is achieved by the following technical solutions:

a building foundation construction process comprises the building foundation structure, and comprises the following construction steps:

s1, excavating a foundation pit, and leveling and tamping the bottom of the foundation pit;

s2, placing four right-angle pieces at the bottom of the foundation pit according to the building area size, placing a connecting rod between every two adjacent right-angle pieces, and connecting the connecting rod with the corresponding right-angle piece by using a first connecting piece to enable the four right-angle pieces and the four connecting rods to form a frame;

s3, mounting second connecting pieces on the connecting rods, and mounting connecting plates on the two opposite connecting rods through the second connecting pieces;

s4, installing the steel bar rod, enabling two ends of the steel bar rod to be respectively located in the lower positioning grooves corresponding to the two connecting rods, and then pressing the steel bar rod in the lower positioning grooves by using a pressing block;

and S5, checking whether all the joints are stable or not, then pouring concrete in the frame, leveling and strickling the surface of the concrete, and finishing the construction of the foundation after the concrete is solidified.

Through adopting above-mentioned technical scheme, the work progress is simple, and constructor's intensity of labour is less, and the mounted position to the connecting rod when installing the reinforcing bar pole influences lessly, is favorable to the work of pouring of later stage concrete, makes foundation stable in structure, and the antidetonation effect is better.

In summary, the invention includes at least one of the following beneficial technical effects:

1. after the frame is constructed, the reinforcing steel bar rod is installed, so that the frame is simple and convenient, the influence on the installation position of the connecting rod is small, and the later concrete pouring work is facilitated;

2. a plurality of reinforcing bar poles and a plurality of connecting plate are crisscross to the connecting plate plays the supporting role to the middle part of reinforcing bar pole, reduces the deformation of reinforcing bar pole middle part, and the foundation stability after making to pour and accomplish is higher, and anti-seismic performance is better.

Drawings

FIG. 1 is a schematic structural view of a building foundation structure;

FIG. 2 is a schematic view of a partially exploded view of the connection of a reinforcing bar to a second connecting bar;

FIG. 3 is a schematic view of a partial explosion showing the connection of the connecting rod to the right angle member;

fig. 4 is a partially exploded view showing a connection relationship between a connecting rod and a connecting plate.

In the figure, 1, a right-angle piece; 2. a connecting rod; 21. a first connecting rod; 22. a second connecting rod; 221. a lower positioning groove; 222. a yielding groove; 3. a first connecting member; 31. a base plate; 32. a side plate; 321. a second connection hole; 33. a second bolt; 4. a connecting plate; 5. a second connecting member; 51. a substrate; 511. a fourth connection hole; 52. connecting blocks; 521. inserting grooves; 522. a third connection hole; 53. a third bolt; 54. a fourth bolt; 6. a reinforcing bar rod; 7. briquetting; 71. a cross bar; 711. a first connection hole; 72. inserting a rod; 721. an upper positioning groove; 73. a first bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the building foundation structure disclosed by the invention comprises four right-angle parts 1 and four connecting rods 2, wherein the connecting rods 2 are arranged between two adjacent right-angle parts 1, so that the four right-angle parts 1 and the four connecting rods 2 form a rectangular frame. Be provided with first connecting piece 3 between right angle spare 1 and the connecting rod 2, right angle spare 1 can dismantle through first connecting piece 3 with connecting rod 2 and be connected.

Referring to fig. 1, two link bars 2 positioned at both sides in the frame width direction are set as first link bars 21, and two link bars 2 positioned at both sides in the frame length direction are set as second link bars 22.

Referring to fig. 1, be provided with a plurality of connecting plates 4 between two head rods 21, connecting plate 4 sets up along the width direction of frame, and a plurality of connecting plates 4 are along the even and interval distribution of length direction of frame, and the both ends of connecting plate 4 are provided with second connecting piece 5 respectively, and connecting plate 4 can be dismantled with two head rods 21 through two second connecting pieces 5 respectively and be connected. Be provided with a plurality of reinforcing bar poles 6 between two second connecting rods 22, reinforcing bar pole 6 sets up along the length direction of frame, and a plurality of reinforcing bar poles 6 are along the even and interval distribution of width direction of frame to a plurality of reinforcing bar poles 6 are located the top of a plurality of connecting plates 4, and the length of reinforcing bar pole 6 is greater than the length of frame.

Referring to fig. 2, the top surface of the second connecting rod 22 is provided with a plurality of lower positioning grooves 221 formed by downward sinking, the plurality of lower positioning grooves 221 correspond to the plurality of reinforcing steel bars 6 one by one, and two ends of each reinforcing steel bar 6 are respectively located in the corresponding lower positioning grooves 221 of the two second connecting rods 22. The second connecting rod 22 is detachably connected with a pressing block 7 above the lower positioning groove 221, and the pressing block 7 presses the reinforcing steel bar rod 6 in the lower positioning groove 221, so that the connection between the reinforcing steel bar rod 6 and the second connecting rod 22 is realized.

Wherein, referring to fig. 2, briquetting 7 includes horizontal pole 71 and inserted bar 72, inserted bar 72 and lower constant head tank 221 looks adaptation, and the bottom of constant head tank 221 is the semicircular groove setting of undercut down, the bottom of inserted bar 72 is upwards sunken and semicircular last constant head tank 721, last constant head tank 721 and lower constant head tank 221 formation circular and with the locating hole of reinforcing bar 6 looks adaptation when inserted bar 72 pegs graft in lower constant head tank 221, reinforcing bar 6 is located the locating hole, and inserted bar 72 compresses tightly reinforcing bar 6 downwards.

Referring to fig. 2, the cross bar 71 is fixedly disposed above the insertion bar 72, the insertion bar 72 is located at a middle portion of the length direction of the cross bar 71, a yielding groove 222 adapted to the cross bar 71 is further formed at a lower positioning groove 221 on the top surface of the second connecting bar 22, the cross bar 71 is located in the yielding groove 222, and the top surface of the cross bar 71 is flush with the top surface of the second connecting bar 22. First connecting holes 711 are respectively formed in two sides of the cross rod 71 of the inserting rod 72, the first connecting holes 711 are waist-shaped holes axially formed along the steel bar rod 6, first bolts 73 are arranged in the first connecting holes 711, the cross rod 71 is detachably connected to the second connecting rod 22 through the two first bolts 73, and the inserting rod 72 is enabled to press the steel bar rod 6 downwards.

Referring to fig. 3, the first connecting member 3 includes bottom plates 31 fixed at two ends of the right angle member 1, the bottom plates 31 are perpendicular to the corresponding connecting rods 2, two side plates 32 are fixed on one side of the bottom plates 31 far away from the right angle member 1, the two side plates 32 are perpendicular to the bottom plates 31 and spaced apart from each other, and the connecting rods 2 are inserted between the two side plates 32 and abut against the bottom plates 31. And the side plate 32 is provided with a second connecting hole 321, the second connecting hole 321 is also arranged in a waist-shaped hole, a second bolt 33 is arranged in the second connecting hole 321, and the connecting rod 2 is detachably connected with the two side plates 32 through the second bolt 33.

Referring to fig. 4, the second connector 5 includes a base plate 51 disposed between the connection plate 4 and the first connection rod 21, and the base plate 51 is parallel to and closely attached to a side surface of the first connection rod 21 close to the connection plate 4. The side of the base plate 51 far away from the second connecting rod 22 is fixedly provided with a connecting block 52, the connecting block 52 is provided with an inserting groove 521 matched with one end of the connecting plate 4, and one end of the connecting plate 4 is inserted into the connecting block 52 through the inserting groove 521. Two third connecting holes 522 are opened on the top surface of the connecting block 52, the two third connecting holes 522 are arranged along the length direction of the first connecting rod 21 at intervals, the third connecting holes 522 are waist-shaped holes arranged along the length direction of the connecting plate 4, third bolts 53 are arranged in the third connecting holes 522, the third bolts 53 penetrate through the connecting plate 4 after penetrating through the third connecting holes 522, and the connecting plate 4 is detachably connected with the connecting block 52 under the action of the two third bolts 53.

Referring to fig. 4, two fourth connection holes 511 are respectively formed in the substrate 51 on two sides of the connection block 52, the fourth connection holes 511 are waist-shaped holes formed along the length direction of the first connection rod 21, a fourth bolt 54 is disposed in the fourth connection holes 511, and the fourth bolt 54 penetrates through the first connection rod 21 after penetrating through the fourth connection holes 511, so that the substrate 51 is detachably connected to the first connection rod 21 through the two fourth bolts 54.

A construction process of a building foundation comprises the building foundation, and comprises the following construction steps:

s1, excavating a foundation pit, and carrying out leveling and tamping work on the bottom of the foundation pit;

s2, according to the area size of a building, placing four right-angle pieces 1, enabling the four right-angle pieces 1 to be two pairs, then installing four connecting rods 2 and the four right-angle pieces 1 in a matched mode, enabling the connecting rods 2 to be inserted between the two corresponding side plates 32, connecting the connecting rods 2 and the two side plates 32 through second bolts 33, and enabling the four right-angle pieces 1 and the four connecting rods 2 to form a frame;

s3, installing a plurality of connecting plates 4 in the frame, firstly inserting the inserting blocks to two ends of the connecting plates 4, then placing the connecting plates 4 and two second connecting pieces 5 between two first connecting rods 21, adjusting the positions of the base plate 51 and the first connecting rods 21, connecting the base plate 51 and the first connecting rods 21 by using fourth bolts 54, and finally connecting the connecting holes with the connecting plates 4 by using third bolts 53;

s4, installing a plurality of reinforcing steel bars 6, sequentially placing the reinforcing steel bars 6 into a lower positioning groove 221 from the upper part of a second connecting rod 22, inserting an inserting rod 72 of a pressing block 7 into the lower positioning groove 221 to enable a cross rod 71 to be positioned in a yielding groove 222, then connecting the cross rod 71 and the second connecting rod 22 by using a first bolt 73, enabling the cross rod 71 and the inserting rod 72 to be pressed downwards by the first bolt 73, and enabling the reinforcing steel bars 6 to be pressed in the lower positioning groove 221 by the inserting rod 72;

and S5, checking whether the joints of the components are stable or not, pouring concrete in the frame after the checking is finished until the concrete submerges the frame, scraping the surface of the concrete, and finishing the construction of the foundation after the concrete is solidified.

Building foundation structure in this application, in the work progress, it is simple and convenient to constructor's intensity of labour meets the end, and the mounted position to connecting rod 2 when installation reinforcing bar pole 6 influences lessly, is favorable to the work of pouring of later stage concrete, and foundation structural stability after the construction, anti-seismic performance is better.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (8)

1. A building foundation structure comprises four right-angle pieces (1) and four connecting rods (2) which are respectively arranged between two adjacent right-angle pieces (1), wherein the four connecting rods (2) and the four right-angle pieces (1) form a rectangular frame; the method is characterized in that: a first connecting piece (3) is arranged between the right-angle piece (1) and the connecting rod (2);

the two connecting rods (2) positioned on two sides of the frame in the width direction are set as first connecting rods (21) and (2), and the two connecting rods (2) positioned on two sides of the frame in the length direction are set as second connecting rods (22) and (2);

a plurality of connecting plates (4) which are distributed at intervals are arranged between the two first connecting rods (21), and a plurality of reinforcing steel bar rods (6) are arranged between the two second connecting rods (22);

two ends of the connecting plate (4) are respectively provided with a second connecting piece (5), and the connecting plate (4) is detachably connected with the two first connecting rods (21) through the second connecting pieces (5);

the top surface of second connecting rod (22) is provided with lower constant head tank (221) that a plurality of undercut formed, and the both ends of reinforcing bar pole (6) are located corresponding lower constant head tank (221) on two second connecting rods (22) respectively, just second connecting rod (22) and lower constant head tank (221) department are provided with and compress tightly briquetting (7) in lower constant head tank (221) reinforcing bar pole (6).

2. A building foundation structure according to claim 1, wherein: the pressing block (7) comprises an inserting rod (72) and a cross rod (71), an upper positioning groove (721) formed by upward sinking is formed in the bottom end of the inserting rod (72), the upper positioning groove (721) and the lower positioning groove (221) form a positioning hole matched with the reinforcing steel bar rod (6) when the inserting rod (72) is inserted into the lower positioning groove (221), and the reinforcing steel bar rod (6) is pressed in the positioning hole by the inserting rod (72);

the cross rod (71) is fixedly arranged at the top end of the inserting rod (72), first connecting holes (711) are formed in two sides of the inserting rod (72) on the cross rod (71) respectively, first bolts (73) are arranged in the first connecting holes (711), and the cross rod (71) is detachably connected with the first connecting rod (21) through the first bolts (73).

3. A building foundation structure according to claim 2, wherein: the first connecting rod (21) is provided with a yielding groove (222) at the lower positioning groove (221), and the cross rod (71) is positioned in the yielding groove (222) to enable the top surface of the cross rod (71) to be flush with the top surface of the first connecting rod (21).

4. A building foundation structure according to claim 3, wherein: the plurality of reinforcing steel bar rods (6) are arranged above the plurality of connecting plates (4), and the plurality of reinforcing steel bar rods (6) and the plurality of connecting plates (4) are arranged in a staggered mode.

5. A building foundation structure according to any one of claims 1 to 4, wherein: the first connecting piece (3) comprises a bottom plate (31) fixedly arranged at one end of the right-angle piece (1) and two side plates (32) fixedly arranged at two sides of the bottom plate (31) respectively;

the side plates (32) are provided with second connecting holes (321), one end of the connecting rod (2) is inserted between the two side plates (32) and is abutted against the bottom plate (31), second bolts (33) are arranged in the second connecting holes (321), and the connecting rod (2) is detachably connected with the two side plates (32) through the second bolts (33).

6. A building foundation structure according to claims 1-4, wherein: the second connecting piece (5) comprises a base plate (51) arranged between the connecting plate (4) and the connecting rod (2) and a connecting block (52) fixedly arranged on one side, close to the connecting plate (4), of the base plate (51);

an insertion groove (521) is formed in the connecting block (52), the connecting plate (4) is inserted into the insertion groove (521), a third connecting hole (522) is formed in the connecting block (52), a third bolt (53) is arranged in the third connecting hole (522), and the connecting plate (4) is detachably connected with the connecting block (52) through the third bolt (53);

the base plate (51) is provided with fourth connecting holes (511) on two sides of the connecting block (52), fourth bolts (54) are arranged in the fourth connecting holes (511), and the base plate (51) abuts against the connecting rod (2) and is detachably connected with the connecting rod through the two fourth bolts (54).

7. A building foundation structure according to claim 6, wherein: the third connecting hole (522) is a kidney-shaped hole.

8. A construction process of a building foundation including a building foundation structure as claimed in any one of claims 1 to 7, wherein: the construction steps are as follows:

s1, excavating a foundation pit, and leveling and tamping the bottom of the foundation pit;

s2, placing four right-angle pieces (1) at the bottom of a foundation pit according to the size of a building area, placing a connecting rod (2) between two adjacent right-angle pieces (1), and connecting the connecting rod (2) with the corresponding right-angle piece (1) by using a first connecting piece (3) to enable the four right-angle pieces (1) and the four connecting rods (2) to form a frame;

s3, mounting second connecting pieces (5) on the connecting rods (2), and mounting connecting plates (4) on the two opposite connecting rods (2) through the second connecting pieces (5);

s4, installing the steel bar rod (6), enabling two ends of the steel bar rod (6) to be respectively located in the lower positioning grooves (221) corresponding to the two connecting rods (2), and pressing the steel bar rod (6) in the lower positioning grooves (221) through a pressing block (7);

and S5, checking whether all the joints are stable or not, then pouring concrete in the frame, leveling and strickling the surface of the concrete, and finishing the construction of the foundation after the concrete is solidified.

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