CN218933836U

CN218933836U - Template system of post-pouring structure of building and formwork system of structure

Info

Publication number: CN218933836U
Application number: CN202223223395.0U
Authority: CN
Inventors: 杜向浩; 成桃园; 林谷; 张梦洋; 黄润强; 梁瑞娟; 黄磊; 郭健; 胡静
Original assignee: Guangzhou Third Construction Engineering Co
Current assignee: Guangzhou Third Construction Engineering Co
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-04-28
Anticipated expiration: 2032-12-01

Abstract

The utility model provides a template system of a post-pouring structure of a building, which comprises a main template, a feed inlet baffle and a discharge outlet baffle; the main template is provided with a frame plate part, side plate parts and an inclined plate part, the middle part of the frame plate part is provided with a feeding hole, the inclined plate part is connected with the frame plate part through 2 side plate parts to form a bucket-shaped cavity in the main template, a pouring hole is formed between the inclined plate part and the frame plate part, and the lower part of the inclined plate part is provided with a discharging hole; the feed inlet baffle can be used for opening and closing the feed inlet, and the discharge outlet baffle can be used for opening and closing the discharge outlet. The formwork system comprises a front template, a rear template and a template drawknot structure, and particularly, the front template is formed by 1 group or more than 1 group of the formwork systems which are aligned up and down in sequence. The utility model can realize the operation modes of section-by-section concrete pouring and section-by-section vibrating construction from bottom to top, has the characteristics of convenient construction operation and quick disassembly and assembly, achieves the effects of high density substance and good apparent flatness of the post-pouring structure, and effectively ensures the construction quality of the post-pouring structure.

Description

Template system of post-pouring structure of building and formwork system of structure

Technical Field

The utility model relates to the technical field of building construction, in particular to a template system of a post-pouring structure of a building and a formwork system of the structure.

Background

In the field of building construction, as shown in fig. 1 and 2, a post-cast structure is generally adopted to cast structures such as a connecting structure or a constructional column on two sections of the wall body 1 which are constructed. The formwork system of the post-pouring structure generally comprises a front template 2, a rear template 3, battens 4, steel pipes 5, locking pieces 6 and opposite-pulling screws 7, wherein the front template 2 and the rear template 3 are respectively of rectangular plate-shaped structures, the front template 2 and the rear template 3 are arranged at intervals to form a pouring cavity 10, the battens 4 and the steel pipes 5 are sequentially arranged on the front side surface of the front template 2 and the rear side surface of the rear template 3, and then the opposite-pulling screws 7 and the steel pipes 5 are locked and connected through the locking pieces 6, so that the opposite-pulling screws are used for tensioning and connecting the front template 2 and the rear template 3, and steel bars, stirrups and the like (not shown in the figure) are pre-buried in the pouring cavity 10. In casting, concrete is cast into the casting cavity 10 from the top of the formwork system. And after the concrete is solidified to meet the requirement of the form removal strength, removing the form supporting system to finish the construction of the post-pouring structure.

The existing formwork system with the post-pouring structure has the main defects that: 1. the operation of pouring at the top of the existing formwork system is very inconvenient, as shown in fig. 2, especially when primary structures such as a floor slab, a beam 91 and the like are already constructed above the wall body, the pouring opening 20 can only be used as the pouring opening 20 through a gap reserved between the top of the formwork system and the upper structure of the wall body, and the pouring opening 20 is usually narrow, so that the pouring operation is very inconvenient and the top cannot be poured easily. After the formwork system is dismantled, concrete is added into the gaps to achieve better construction quality, the operation is complex, and the construction quality is poor. 2. For post-cast structures with higher total height, the casting cavity 10 is difficult to be filled with concrete effectively by casting at the top of the formwork system, segregation in the concrete casting falling process and incapability of vibrating the lower structure section by section after casting are easy to occur due to high height in the concrete casting process, and the quality problems of uneven hollows, honeycombs, pitting surfaces and the like of the post-cast structure are caused. There is therefore a need for improvement.

Disclosure of Invention

The utility model aims to provide a template system of a post-pouring structure of a building and a template system of the structure, which adopt a sectional type template structure, can be flexibly combined according to specific construction conditions, realize sectional type concrete pouring construction from the bottom to the high position, ensure smooth and efficient implementation of sectional type concrete pouring and sectional type vibration of the post-pouring structure, and have the characteristics of convenient and quick construction operation, good compactness and flatness of the post-pouring structure and effectively ensure the construction quality of the post-pouring structure.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a template system of a post-pouring structure of a building, which comprises a main template, a feed inlet baffle and a discharge outlet baffle; the main template is provided with a frame plate part, side plate parts and an inclined plate part, wherein the frame plate part is of a rectangular frame structure which is vertically arranged, a feeding hole is formed in the middle of the frame plate part, the inclined plate part is of a rectangular plate structure which is obliquely arranged on the front side of the frame plate part, the bottom of the inclined plate part is connected to the lower part of the feeding hole on the frame plate part, the top of the inclined plate part is higher than the top of the feeding hole, two sides of the inclined plate part are connected with two sides of the frame plate part through 2 side plate parts, so that a bucket-shaped cavity with a wide upper part and a narrow lower part is formed in the main template, a pouring hole is formed between the top of the inclined plate part and the frame plate part, and a discharging hole is formed in the lower part of the inclined plate part; the feed inlet baffle is movably arranged on the frame plate part and can open or seal the feed inlet, and the discharge outlet baffle is movably arranged on the sloping plate part and can open or seal the discharge outlet.

Preferably, the formwork system of the post-pouring structure of the building further comprises auxiliary formworks, wherein the auxiliary formworks are of rectangular plate-shaped structures which are vertically arranged, 1 auxiliary formwork or more than 1 auxiliary formworks which are aligned up and down in sequence are arranged to form an auxiliary formwork group, and 1 auxiliary formwork group is aligned below the frame plate part of the 1 main formwork.

Preferably, the top front side of the frame plate portion of the main die plate and the top front side of the sub die plate are respectively provided with an upper retaining edge, and the bottom rear side of the frame plate portion of the main die plate and the bottom rear side of the sub die plate are respectively provided with a lower retaining edge, and the upper retaining edge and the lower retaining edge are mutually buckled and used for positioning and aligning the frame plate portion of the main die plate with the sub die plate and the sub die plate with the sub die plate.

Preferably, the back side of the frame plate part of the main template is provided with transversely arranged feed port slots around the feed port, the feed port baffle is provided with a rectangular plate-shaped feed port baffle part and a feed port baffle head part positioned at one end of the feed port baffle part, and the feed port baffle can be movably inserted into the feed port slots by the feed port baffle part so that the feed port baffle can be transversely pushed and pulled.

Preferably, the rear side of the inclined plate part of the main template is provided with a discharge port slot which is arranged transversely around the discharge port, the discharge port baffle is provided with a rectangular plate-shaped discharge port baffle part and a discharge port baffle head part positioned at one end of the discharge port baffle part, and the discharge port baffle can be movably inserted into the discharge port slot by the discharge port baffle part so that the discharge port baffle can be pushed and pulled transversely.

The utility model also provides a formwork system of the post-pouring structure of the building, which comprises a front template, a rear template and a template drawknot structure, wherein the front template and the rear template are oppositely arranged front and back, the template drawknot structure comprises a screw rod and a locking nut connected with the screw rod in a threaded manner, and the front template and the rear template are drawed through the template drawknot structure; the front template is composed of 1 group or more than 1 group of template systems of the post-pouring structures of the buildings, which are aligned up and down in sequence, the upper retaining edge and the lower retaining edge are mutually buckled to enable the template systems of the post-pouring structures of the adjacent two groups of buildings to be aligned, the rear template is of a rectangular plate-shaped structure which is vertically arranged, and the rear side face of the front template is opposite to the rear template, and pouring cavities are arranged between the rear template and the rear template.

Preferably, the top middle part and the bottom middle part of the frame plate part of the main template and the top middle part and the bottom middle part of the auxiliary template in the front template are respectively provided with front template perforation, the front template perforation corresponding to the front template on the rear template is provided with rear template perforation, the screw rod of the template drawknot structure penetrates through the front template perforation, the pouring cavity and the rear template perforation, and the two ends of the screw rod are respectively locked by locking nuts at the front side of the front template and the rear side of the rear template.

Preferably, the front side of the auxiliary template of the front template and/or the rear side of the rear template are/is also respectively provided with a side locking support, the side locking supports are of an arch structure, the middle part of each side locking support is provided with a supporting perforation, and the end part of each screw rod passes through the supporting perforation and is locked by another 1 locking nut.

The utility model has the following substantial characteristics and progress:

1. according to the template system of the post-pouring structure of the building and the formwork supporting system of the structure, the bucket-shaped pouring opening is formed through the vertically arranged frame plate part and the inclined plate part obliquely arranged at the front side of the frame plate part, the middle part of the frame plate part is provided with the feeding opening, the lower part of the inclined plate part is provided with the discharging opening, so that a feeding pipe and a vibrating rod of a small vibrator are conveniently inserted into a pouring cavity respectively through the pouring opening and the feeding opening, the prepared concrete is poured into the pouring cavity section by section through the feeding pipe, and meanwhile, the section-by-section vibration is carried out in a matching mode, so that smooth and efficient implementation of pouring and vibrating is realized, and the template system has the characteristics of convenience and rapidness in construction operation.

2. According to the template system of the post-pouring structure of the building and the template supporting system of the structure, the main template and the auxiliary template are arranged in an up-down alignment mode, so that the template system can be adjusted along with a construction site, the construction flexibility is high, sequential section-by-section pouring and section-by-section vibration from the bottom to the high position can be realized, the compactness and flatness of concrete of the post-pouring structure are ensured, the situation that segregation phenomenon occurs in concrete with excessive pouring height is avoided in one-time pouring, the problem that a vibrating rod cannot reach the bottom and cannot vibrate in place is avoided in section-by-section vibration, the quality problems of cavities, honeycombs, pitting surfaces and the like of the post-pouring structure are further avoided, and the construction quality is effectively ensured.

3. According to the formwork system of the post-pouring structure of the building and the formwork system of the structure, the front side of the front formwork and the rear side of the rear formwork are locked through the locking nuts of the formwork drawknot structure, so that the locking force is enhanced, meanwhile, the locking force of the screw rods on the front formwork and the rear formwork is further enhanced through side locking support, rubber gaskets can be arranged on the inner sides of the close to the wall of the formwork, and the problems of slurry leakage and the like in the concrete pouring process are avoided.

4. According to the template system of the post-pouring structure of the building and the formwork system of the structure, when the pouring opening of the structure at the top is poured, the bucket-shaped cavity of the template system at the top is filled, so that the top of the pouring cavity can be filled with concrete, after the baffle plate of the feeding opening is used for blocking, the discharging opening is opened to discharge excessive concrete, so that the excessive concrete is recycled, the construction quality of the post-pouring structure is ensured, the recycling rate of construction materials is improved, and the aim of green and environment protection is achieved.

Drawings

FIG. 1 is a schematic structural diagram of a post-cast structural formwork system conventionally employed in the prior art.

Fig. 2 is a schematic partial cross-sectional view of a post-cast structural formwork system conventionally employed in the prior art.

Fig. 3 and 4 are schematic structural views of a master template of a template system of the post-pouring structure of the building.

Fig. 5 is a schematic cross-sectional view of a master template of the template system of the building post-cast structure of the present utility model.

Fig. 6 is a schematic structural view of a secondary form of the form system of the post-construction casting structure of the present utility model.

Fig. 7 is a schematic diagram of a right-side view state of a formwork system of the post-pouring structure of the present utility model (closed state of a feed inlet baffle and a discharge outlet baffle).

Fig. 8 is a schematic diagram of a front view state of a formwork system of the post-pouring structure of the present utility model (open state of a feed inlet baffle and a discharge outlet baffle).

Fig. 9 is a schematic structural view of a formwork system of the post-pouring structure of the present utility model in a state where a feed inlet baffle and a discharge outlet baffle are opened.

Fig. 10 is a schematic structural view of a formwork system of the post-pouring structure of the present utility model in a closed state of a feed inlet baffle and a discharge outlet baffle.

FIG. 11 is a schematic partial cross-sectional view of a formwork system of a post-construction casting structure of the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Example 1

As shown in fig. 3 to 11, a formwork system of a post-pouring structure of a building comprises a main formwork 1, an auxiliary formwork 4, a feed inlet baffle 2 and a discharge outlet baffle 3.

The main module 1 has a frame plate portion 11, a side plate portion 12, and a sloping plate portion 13. The frame plate part 11 is a vertically arranged rectangular frame-shaped structure, and a feed inlet 110 is formed in the middle of the frame plate part. The inclined plate portion 13 is a rectangular plate structure provided obliquely on the front side of the frame plate portion 11, and the bottom thereof is connected to the frame plate portion 11 below the inlet 110, and the top thereof is higher than the top of the inlet 110. Two sides of the sloping plate part 13 are connected with two sides of the frame plate part 11 through 2 side plate parts 12, so that a bucket-shaped cavity 10 with wide upper part and narrow lower part is formed in the main template 1, a pouring port 101 is formed between the top of the sloping plate part 13 and the frame plate part 11, and a discharge port 130 is formed at the lower part of the sloping plate part 13.

The back side of the frame plate part 11 of the main template 1 is provided with a feed port slot 111 which is arranged transversely around the feed port 110, the feed port baffle 2 is provided with a rectangular plate-shaped feed port baffle part 20 and a feed port baffle head part 21 which is positioned at one end of the feed port baffle part 20, and the feed port baffle 2 can be movably inserted into the feed port slot 111 by the feed port baffle part 20, so that the feed port baffle 2 can be pushed and pulled transversely. The inlet 110 is opened or blocked by pushing and pulling the inlet flap 2 laterally.

The rear side of the sloping plate part 13 of the main template 1 is provided with a discharge port slot 1041 which is arranged transversely around the discharge port 130, the discharge port baffle 3 is provided with a rectangular plate-shaped discharge port baffle part 30 and a discharge port baffle head part 31 which is positioned at one end of the discharge port baffle part 30, and the discharge port baffle 3 can be movably inserted into the discharge port slot 1041 by the discharge port baffle part 30, so that the discharge port baffle 3 can be pushed and pulled transversely. The outlet 130 is opened or blocked by pushing and pulling the outlet shutter 3 laterally.

The auxiliary templates 4 are rectangular plate structures which are vertically arranged, and 1 auxiliary template 4 is arranged under the frame plate part 11 of the 1 main template 1 in an aligned mode. In some examples, 1 sub-module group formed by more than 1 sub-module 4 aligned one above the other may also be aligned under the frame plate portion 11 of 1 main module 1.

The top front side of the frame plate part 11 of the main template 1 and the top front side of the auxiliary template 4 are respectively provided with an upper blocking edge 5, the bottom rear side of the frame plate part 11 of the main template 1 and the bottom rear side of the auxiliary template are respectively provided with a lower blocking edge 6, and the upper blocking edge 5 and the lower blocking edge 6 are mutually buckled to align the frame plate part 11 of the main template 1 with the auxiliary template 4. In some examples, when 1 sub-template group is formed of more than 1 sub-templates 4 aligned one above the other, two sub-templates 4 arranged one above the other are aligned by the snap-fit of the upper and

lower flanges

5 and 6 to each other.

In this embodiment, through pouring port 101 realization side of master template 1 pour, the vibrating spear of the inlet pipe of being convenient for and small-size vibrator is passed by pouring port 101 of side, implements and pours the vibration simultaneously, and the concrete placement of the post-cast structure of being convenient for is implemented smoothly high-efficiently, has the characteristics that construction operation is convenient quick. The lower parts of the 1 main templates 1 are aligned with 1 auxiliary templates 4 or the lower parts of the 1 main templates 1 are aligned with 1 auxiliary template group consisting of a plurality of auxiliary templates 4, and the auxiliary template group can be randomly adjusted according to the actual construction site conditions.

Example 2

As shown in fig. 7 to 11, a formwork system of a post-pouring structure of a building comprises a front template 7, a rear template 8 and a template drawknot structure, wherein the front template 7 is formed by 2 groups of formwork systems of post-pouring structures of the building in embodiment 1 aligned up and down in sequence, an upper retaining edge 5 and a lower retaining edge 6 are mutually buckled to enable the formwork systems of the post-pouring structures of two adjacent groups of building to be aligned in a positioning mode, the rear template 8 is of a rectangular plate-shaped structure arranged vertically, and the peripheral edge part of the rear template 8 is provided with a frame and the middle part is provided with a transverse bar. The rear side surface of the front template 7 is opposite to the rear template 8, and a pouring cavity 60 is arranged between the rear template 8 and the rear template 8. The template drawknot structure comprises a screw rod 9 and a locking nut 91 which is connected with the screw rod in a threaded mode, and the front template 7 and the rear template 8 are drawed through the template drawknot structure.

The top middle part and the bottom middle part of the frame plate part 11 of the main template 1 and the top middle part and the bottom middle part of the auxiliary template 4 in the front template 7 are respectively provided with front template perforations 70, and the front template perforations 70 corresponding to the front template 7 on the rear template 8 are provided with rear template perforations. The screw rod 9 of the template drawknot structure penetrates through the front mould perforation 70, the pouring cavity 60 and the rear mould perforation, and two ends of the screw rod 9 are located on the front side of the front template 7 and the rear side of the rear template 8 and are locked through locking nuts 91 respectively. The front side of the auxiliary template 4 of the front template 7 and the rear side of the rear template 8 are also respectively provided with side locking supports 93 which are in an arch structure, the middle parts of the side locking supports are provided with supporting perforations, and the end parts of the screw rods 9 also penetrate through the supporting perforations and are locked by the other 1 locking nut 91. The template drawknot structure can lock the front template 7 and the rear template 8 simultaneously, the stability between the front template 7 and the rear template 8 is improved, the locking force of the side locking support 93 is further enhanced, and meanwhile, rubber gaskets (not shown in the figure) can be arranged on the inner sides of the templates close to the wall according to the prior art, so that slurry leakage is avoided.

And in the concrete construction, the sectional concrete pouring construction is carried out from the bottom to the high position. The lower concrete pouring operation is performed by the lowest pouring opening 101. Concrete pouring operation comprises the following specific steps: the discharge port slot 1041 is blocked by the discharge port baffle 3, and then a feed pipe (not shown) and a vibrating rod (not shown) of the small vibrator are respectively inserted into the pouring cavity 60 through the pouring port 101 and the feed port 110, so that the prepared concrete is poured into the pouring cavity 60 through the feed pipe, and simultaneously, the concrete is vibrated in a matching way. When concrete is poured near the feed opening 110, the feed pipe is withdrawn, and the feed opening 110 is blocked by the feed opening baffle 2. And then the upper concrete pouring operation is continued at the upper pouring opening 101 by adopting the steps.

When pouring is performed through the top pouring opening 101, in order to ensure that the top of the pouring cavity 60 is filled with concrete, when concrete is poured near the top feeding opening 110, the feeding pipe is pulled out to enable the tail end pipe opening of the feeding pipe to be positioned in the bucket-shaped cavity 10 of the main template 1, pouring is continued to be performed through the feeding pipe into the bucket-shaped cavity 10, the concrete enters the top of the pouring cavity 60 from the bucket-shaped cavity 10 through the feeding opening 110 until the bucket-shaped cavity 10 is filled with concrete, and pouring is stopped. At this time, the top of the pouring cavity 60 is also poured with concrete, the feed inlet 110 is blocked by the feed inlet baffle 2, and the discharge outlet 130 is opened to discharge the excess concrete in the bucket-shaped cavity 10, so that the excess concrete is recycled. When the concrete in the pouring cavity 60 meets the requirement of the form removal strength, the form removal can be performed so as to be used again, so that the recycling rate of construction materials is improved, and the construction cost is reduced.

Claims

1. The utility model provides a template system of building post-cast structure which characterized in that: comprises a main template (1), a feed inlet baffle (2) and a discharge outlet baffle (3); the main template (1) is provided with a frame plate part (11), side plate parts (12) and an inclined plate part (13), the frame plate part (11) is of a rectangular frame structure which is vertically arranged, the middle part of the main template is provided with a feed inlet (110), the inclined plate part (13) is of a rectangular plate structure which is obliquely arranged at the front side of the frame plate part (11), the bottom of the inclined plate part is connected to the lower part of the feed inlet (110) on the frame plate part (11), the top of the inclined plate part is higher than the top of the feed inlet (110), two sides of the inclined plate part (13) are connected with two sides of the frame plate part (11) through 2 side plate parts (12), so that a bucket-shaped cavity (10) with a wide upper part and a narrow lower part is formed in the main template (1), a pouring opening (101) is formed between the top of the inclined plate part (13) and the frame plate part (11), and the lower part of the inclined plate part (13) is provided with a discharge opening (130); the feed inlet baffle (2) is movably arranged on the frame plate part (11) and can open or seal the feed inlet (110), and the discharge outlet baffle (3) is movably arranged on the inclined plate part (13) and can open or seal the discharge outlet (130).

2. The formwork system for a post-construction casting structure according to claim 1, wherein: the auxiliary template (4) is of a rectangular plate-shaped structure which is vertically arranged, 1 auxiliary template (4) or more than 1 auxiliary templates (4) which are aligned up and down in sequence are arranged to form an auxiliary template group, and 1 auxiliary template group is aligned below a frame plate part (11) of the 1 main template (1).

3. The formwork system for a post-cast building structure as claimed in claim 2, wherein: the top front side of the frame plate part (11) of the main template (1) and the top front side of the auxiliary template (4) are respectively provided with an upper blocking edge (5), the bottom rear side of the frame plate part (11) of the main template (1) and the bottom rear side of the auxiliary template (4) are respectively provided with a lower blocking edge (6), and the upper blocking edge (5) and the lower blocking edge (6) are mutually buckled and used for positioning and aligning the frame plate part (11) of the main template (1) with the auxiliary template (4) and the auxiliary template (4).

4. A formwork system for a post-cast construction as claimed in claim 1 or 2 or 3, wherein: the feeding port baffle plate is characterized in that feeding port slots (111) which are transversely arranged are formed in the periphery of a feeding port (110) on the rear side face of a frame plate portion (11) of the main die plate (1), the feeding port baffle plate (2) is provided with a rectangular plate-shaped feeding port baffle plate portion (20) and a feeding port baffle head portion (21) located at one end of the feeding port baffle plate portion (20), and the feeding port baffle plate (2) can be movably inserted into the feeding port slots (111) through the feeding port baffle plate portion (20) to enable the feeding port baffle plate (2) to be transversely pushed and pulled.

5. A formwork system for a post-cast construction as claimed in claim 1 or 2 or 3, wherein: the novel automatic discharging device is characterized in that discharge port slots (131) which are transversely arranged are formed in the periphery of a discharge port (130) in the rear side face of the inclined plate part (13) of the main template (1), the discharge port baffle (3) is provided with a rectangular plate-shaped discharge port baffle part (30) and a discharge port baffle head part (31) positioned at one end of the discharge port baffle part (30), and the discharge port baffle (3) can be movably inserted into the discharge port slots (131) through the discharge port baffle part (30) so that the discharge port baffle (3) can be transversely pushed and pulled.

6. The formwork supporting system of the post-pouring structure of the building comprises a front template (7), a rear template (8) and a template drawknot structure, wherein the front template (7) and the rear template (8) are oppositely arranged front and back, the template drawknot structure comprises a screw (9) and a locking nut (91) which is connected to the screw in a threaded manner, and the front template (7) and the rear template (8) are drawed through the template drawknot structure; the method is characterized in that: the front template (7) is composed of 1 group or more than 1 group of template systems of the post-pouring structure of the building, which are aligned up and down in sequence, according to the structure, wherein the upper retaining edge (5) and the lower retaining edge (6) are mutually buckled to enable the template systems of the post-pouring structures of two adjacent groups of buildings to be aligned, the rear template (8) is of a rectangular plate-shaped structure which is vertically arranged, the rear side surface of the front template (7) is opposite to the rear template (8), and pouring cavities (60) are formed between the rear template (8) and the rear template.

7. The formwork system for a post-cast building structure as defined in claim 6, wherein: the top middle part and the bottom middle part of a frame plate part (11) of a main template (1) and the top middle part and the bottom middle part of an auxiliary template (4) in the front template (7) are respectively provided with front template perforation holes (70), front template perforation holes (70) corresponding to the front template (7) on the rear template (8) are provided with rear template perforation holes, a screw rod (9) of a template drawknot structure penetrates through the front template perforation holes (70), a pouring cavity (60) and the rear template perforation holes, and two ends of the screw rod (9) are positioned on the front side of the front template (7) and the rear side of the rear template (8) and are respectively locked through locking nuts (91).

8. The formwork system for a post-cast building structure as in claim 7, wherein: the front side of the auxiliary template (4) of the front template (7) and/or the rear side of the rear template (8) are/is also respectively provided with a side locking support (93), the side locking support (93) is of an arch structure, the middle part of the side locking support is provided with a supporting perforation, and the end part of the screw rod (9) also penetrates through the supporting perforation and is locked by another 1 locking nut (91).