阅读说明：本技术 一种装配式大棚及其施工方法 (Assembled greenhouse and construction method thereof ) 是由 宋建东 聂杰 李飞 周克家 宁娜娜 林萌 董丽萍 刘晓艳 于 2020-04-29 设计创作，主要内容包括：本发明公开了一种装配式大棚及其施工方法,属于装配式建筑技术领域,该装配式大棚包括预制基础、钢结构骨架、装配式墙体和墙体加固装置；所述钢结构骨架包括若干个前立柱、后立柱和侧立柱；所述装配式墙体包括墙板和保温复合板,相邻所述后立柱之间、相邻所述侧立柱之间均设置有所述墙板,所述墙板的至少一侧设置有所述保温复合板；相邻所述前立柱顶部之间设置有前连梁,相邻所述后立柱顶部之间设置有后连梁,所述后连梁和所述前连梁之间跨设有若干个骨架梁,相邻所述骨架梁之间设置有若干个檩条；所述骨架梁顶部和所述前立柱组的外侧设置有覆盖物。该装配式大棚的施工方法,采用上述装配式大棚。本发明保温效果好,结构稳定性好,施工周期短。(The invention discloses an assembled greenhouse and a construction method thereof, belonging to the technical field of assembled buildings, wherein the assembled greenhouse comprises a prefabricated foundation, a steel structure framework, an assembled wall body and a wall body reinforcing device; the steel structure framework comprises a plurality of front upright columns, rear upright columns and side upright columns; the assembled wall body comprises wall boards and heat-insulation composite boards, the wall boards are arranged between the adjacent rear upright posts and between the adjacent side upright posts, and the heat-insulation composite boards are arranged on at least one side of each wall board; a front connecting beam is arranged between the tops of the adjacent front upright columns, a rear connecting beam is arranged between the tops of the adjacent rear upright columns, a plurality of framework beams are arranged between the rear connecting beam and the front connecting beam in a spanning manner, and a plurality of purlins are arranged between the adjacent framework beams; and covering materials are arranged on the top of the framework beam and the outer side of the front upright post group. The construction method of the assembled greenhouse adopts the assembled greenhouse. The invention has good heat preservation effect, good structural stability and short construction period.)

1. The assembled greenhouse is characterized by comprising a prefabricated foundation, a steel structure framework and an assembled wall body;

the steel structure framework comprises a front vertical column group, a rear vertical column group and two side vertical column groups which are fixedly arranged on the prefabricated foundation; the front upright post group comprises a plurality of front upright posts which are distributed at intervals, the rear upright post group comprises a plurality of rear upright posts which are distributed at intervals, the height of each rear upright post is higher than that of each front upright post, and each side upright post group comprises a plurality of side upright posts which are gradually reduced from back to front and are distributed at intervals;

the assembled wall body comprises wall boards and heat-insulation composite boards, the wall boards are arranged between the adjacent rear upright posts and between the adjacent side upright posts, and the heat-insulation composite boards are arranged on at least one side of each wall board;

the assembled greenhouse also comprises a wall reinforcing device which is arranged corresponding to the rear upright post and the side upright post;

a front connecting beam is arranged between the tops of the adjacent front upright columns, a rear connecting beam is arranged between the tops of the adjacent rear upright columns, a plurality of framework beams distributed at intervals are spanned between the rear connecting beam and the front connecting beam, and a plurality of purlins distributed at intervals are arranged between the adjacent framework beams;

and covering materials are arranged on the top of the framework beam and the outer side of the front upright post group.

2. The assembled greenhouse of claim 1, wherein the wall reinforcing device comprises reinforcing seats corresponding to the rear upright posts and the side upright posts, the reinforcing seats are located outside the prefabricated foundation and are spaced from the prefabricated foundation, steel wire ropes are arranged between the upper portions of the rear upright posts and the side upright posts and the corresponding reinforcing seats, and basket bolts are arranged on the steel wire ropes.

3. The fabricated greenhouse of claim 2, wherein nuts are arranged on the upper portions of the rear columns and the upper portions of the side columns, and each nut is in threaded connection with a bolt with a fixing ring; the reinforcing seat is fixedly provided with a connecting ring, the upper end of the steel wire rope is connected with the fixing ring, and the lower end of the steel wire rope is connected with the connecting ring.

4. The fabricated greenhouse of claim 2, wherein the reinforcement base is buried below ground; the prefabricated foundation is arranged on the ground.

5. The assembled greenhouse of claim 1, wherein the front columns, the rear columns and the side columns each comprise a bottom plate and a section steel column arranged on the bottom plate, and the bottom plate is fixed on the prefabricated foundation through a fastener.

6. The fabricated greenhouse of claim 5, wherein the steel columns are H-shaped steel columns, and the wall panel card is inserted between the wing plate grooves of the adjacent H-shaped steel columns.

7. The fabricated greenhouse of claim 5, wherein the bottom plate is fixedly provided with a metal ferrule for accommodating the bottom of the heat-insulating composite plate, and the metal ferrule comprises two oppositely arranged flange parts and a Z-shaped connecting part for connecting the two flange parts; and an inverted U-shaped metal clamping sleeve is arranged at the top of the assembled wall body.

8. The assembled greenhouse of claim 1, wherein the framework beams are provided with fixing plates for connecting purlins, fasteners are arranged between the fixing plates and the purlins, and strip-shaped holes for the fasteners to pass through are formed in the fixing plates or the purlins.

9. The fabricated greenhouse of claim 1, wherein the prefabricated foundation comprises a plurality of concrete bases, the concrete bases on the front side are arranged at intervals, and the concrete bases on the left and right sides and the rear side are arranged in sequence.

10. A construction method of a fabricated greenhouse, which employs the fabricated greenhouse of any one of claims 1 to 9, comprising the steps of:

A) laying a prefabricated foundation;

B) respectively fixedly installing a plurality of front upright columns of the front upright column group, a plurality of rear upright columns of the rear upright column group and a plurality of side upright columns of the two side upright column groups on the prefabricated foundation;

C) wall boards are arranged between the adjacent rear upright columns and between the adjacent side upright columns, and a heat-insulating composite board is arranged on at least one side of each wall board;

D) installing a wall reinforcing device;

E) front connecting beams are arranged between the tops of the adjacent front upright posts, rear connecting beams are arranged between the tops of the adjacent rear upright posts, and a plurality of framework beams distributed at intervals are arranged between the rear connecting beams and the front connecting beams;

F) a plurality of purlins distributed at intervals are arranged between the adjacent framework beams;

G) and arranging covering materials at the top of the installed framework beam and the outer side of the front upright post group.

Technical Field

The invention belongs to the technical field of assembly type buildings, and particularly relates to an assembly type greenhouse and a construction method thereof.

Background

With the development of greenhouse planting technology, the production efficiency is continuously improved, the greenhouse technology is also widely applied to agricultural production activities, and the basic structure of the greenhouse is formed by covering a greenhouse main body with a heat insulation film. At present, in the prior art, a greenhouse main body is mainly built by clay bricks, the heat insulation effect is poor, the structural stability is poor, and the construction labor intensity is high. In addition, the whole greenhouse needs on-site wet operation, so that the construction period is long, and time and labor are wasted.

Therefore, how to develop a greenhouse with good heat preservation effect, good structural stability and short construction period becomes a technical problem to be solved urgently by technical personnel in the field.

Disclosure of Invention

Therefore, the first technical problem to be solved by the invention is as follows: the assembled greenhouse is good in heat preservation effect, good in structural stability and short in construction period.

As a technical concept, the second technical problem to be solved by the present invention is: provides a construction method of an assembled greenhouse.

In order to solve the first technical problem, the technical scheme of the invention is as follows: an assembled greenhouse comprises a prefabricated foundation, a steel structure framework and an assembled wall body;

the steel structure framework comprises a front vertical column group, a rear vertical column group and two side vertical column groups which are fixedly arranged on the prefabricated foundation; the front upright post group comprises a plurality of front upright posts which are distributed at intervals, the rear upright post group comprises a plurality of rear upright posts which are distributed at intervals, the height of each rear upright post is higher than that of each front upright post, and each side upright post group comprises a plurality of side upright posts which are gradually reduced from back to front and are distributed at intervals;

the assembled wall body comprises wall boards and heat-insulation composite boards, the wall boards are arranged between the adjacent rear upright posts and between the adjacent side upright posts, and the heat-insulation composite boards are arranged on at least one side of each wall board;

the assembled greenhouse also comprises a wall reinforcing device which is arranged corresponding to the rear upright post and the side upright post;

a front connecting beam is arranged between the tops of the adjacent front upright columns, a rear connecting beam is arranged between the tops of the adjacent rear upright columns, a plurality of framework beams distributed at intervals are spanned between the rear connecting beam and the front connecting beam, and a plurality of purlins distributed at intervals are arranged between the adjacent framework beams;

and covering materials are arranged on the top of the framework beam and the outer side of the front upright post group.

As an improvement, the wall body reinforcing device comprises reinforcing seats corresponding to the rear stand columns and the side stand columns, the reinforcing seats are located outside the prefabricated foundation and have a certain distance with the prefabricated foundation, steel wire ropes are arranged on the upper portions of the rear stand columns and the upper portions of the side stand columns and between the corresponding reinforcing seats, and the steel wire ropes are provided with turn-buckle bolts.

As a further improvement, nuts are arranged on the upper portions of the rear upright post and the side upright posts, and a bolt with a fixing ring is connected to each nut in a threaded manner; the reinforcing seat is fixedly provided with a connecting ring, the upper end of the steel wire rope is connected with the fixing ring, and the lower end of the steel wire rope is connected with the connecting ring.

As a further improvement, the reinforcing seat is buried under the ground; the prefabricated foundation is arranged on the ground.

As an improvement, the front upright post, the rear upright post and the side upright posts all comprise bottom plates and profile steel upright posts arranged on the bottom plates, and the bottom plates are fixed on the prefabricated foundation through fasteners.

As a further improvement, the section steel upright is an H-shaped steel upright, and the wallboard card is inserted between wing plate grooves of the adjacent H-shaped steel uprights.

As a further improvement, a metal cutting sleeve for accommodating the bottom of the heat-insulating composite board is fixedly arranged on the bottom board, and the metal cutting sleeve comprises two oppositely arranged flange parts and a Z-shaped connecting part for connecting the two flange parts; and an inverted U-shaped metal clamping sleeve is arranged at the top of the assembled wall body.

As an improvement, the framework beam is provided with a fixing plate used for being connected with a purline, a fastener is arranged between the fixing plate and the purline, and the fixing plate or the purline is provided with a strip-shaped hole for the fastener to penetrate through.

As an improvement, the prefabricated foundation comprises a plurality of concrete bases, the concrete bases on the front side are arranged at intervals, and the concrete bases on the left side, the right side and the rear side are sequentially arranged.

In order to solve the second technical problem, the technical solution of the present invention is: a construction method of an assembled greenhouse comprises the following steps:

A) laying a prefabricated foundation;

B) respectively fixedly installing a plurality of front upright columns of the front upright column group, a plurality of rear upright columns of the rear upright column group and a plurality of side upright columns of the two side upright column groups on the prefabricated foundation;

C) wall boards are arranged between the adjacent rear upright columns and between the adjacent side upright columns, and a heat-insulating composite board is arranged on at least one side of each wall board;

D) installing a wall reinforcing device;

E) front connecting beams are arranged between the tops of the adjacent front upright posts, rear connecting beams are arranged between the tops of the adjacent rear upright posts, and a plurality of framework beams distributed at intervals are arranged between the rear connecting beams and the front connecting beams;

F) a plurality of purlins distributed at intervals are arranged between the adjacent framework beams;

G) and arranging covering materials at the top of the installed framework beam and the outer side of the front upright post group.

After the technical scheme is adopted, the invention has the beneficial effects that:

according to the assembled greenhouse and the construction method thereof, as the prefabricated foundation, the steel structure framework, the wall plate, the heat-insulation composite plate, the front connecting beam, the rear connecting beam, the framework beams, the purlins and the covering are designed, all components of the greenhouse can be prefabricated in a factory and then transported to the site for assembly, so that the quality and the size accuracy of all the components are ensured, the construction speed is high, and the construction period is greatly shortened; because at least one side of the wallboard is provided with the heat-insulation composite board, compared with a wall body built by traditional clay bricks, the heat-insulation composite board has better heat-insulation effect; because the assembled greenhouse is provided with the steel structure framework, the front connecting beam, the rear connecting beam, the framework beams, the purlins and the wall reinforcing device, the structural stability is good, the bearing capacity of the greenhouse structure is enhanced, and the capacity of the greenhouse for resisting wind load and snow load is enhanced. The assembled greenhouse and the construction method thereof provided by the invention have the advantages of good heat insulation effect, factory prefabrication, quick field assembly, good structural stability, short construction period, good economic benefit and social benefit, and can be widely applied to the construction of agricultural greenhouses.

The wall body reinforcing device comprises reinforcing seats arranged corresponding to the rear upright posts and the side upright posts, steel wire ropes are arranged between the upper parts of the rear upright posts and the side upright posts and the corresponding reinforcing seats, and each steel wire rope is provided with a turn buckle, so that the reinforcing seats and the steel wire ropes respectively apply oblique tension to the corresponding assembled wall body, and the wall body reinforcing device is simple in structure and low in cost; the steel wire rope can be quickly tensioned by adjusting the turn buckle, so that the adjustment is facilitated.

Nuts are arranged on the upper portions of the rear upright post and the side upright posts, and a bolt with a fixing ring is connected to each nut in a threaded manner; the reinforcing seat is fixedly provided with the connecting ring, so that the end part of the steel wire rope is convenient to fix.

Because the reinforcing seat is buried below the ground, the reinforcing seat and the steel wire rope can respectively apply larger oblique tension to the corresponding assembled wall body, and a better reinforcing effect is achieved.

Because the metal clamping sleeve is fixedly arranged on the bottom plate, the metal clamping sleeve not only plays a role in fixing the heat-insulation composite plate, but also plays a role in preventing water; because thermal protection composite panel with the wallboard forms the assembled wall body, the top of assembled wall body is provided with the shape of falling U metal cutting ferrule, and the shape of falling U metal cutting ferrule can play the effect of protecting wallboard and thermal protection composite panel.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope covered by the contents disclosed in the present invention.

Fig. 1 is a top view of a fabricated greenhouse according to an embodiment of the present invention;

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a schematic view of the relative positions of the framing beams and the purlins;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B (with the steel cords omitted);

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

FIG. 6 is a top view of a prefabricated foundation and steel structural skeleton;

FIG. 7 is an enlarged view of a portion of FIG. 6 at D;

FIG. 8 is an enlarged view of a portion of FIG. 6 at E;

FIG. 9 is a view from direction F of FIG. 6;

FIG. 10 is a top view of an assembled wall;

FIG. 11 is an enlarged view of a portion of FIG. 10 at G;

FIG. 12 is an enlarged view of an insulated composite panel mounting node;

FIG. 13 is an enlarged view of a portion of FIG. 12 at M;

fig. 14 is a schematic structural view of the metal ferrule of fig. 13;

FIG. 15 is an enlarged view of an inverted U-shaped metal ferrule;

FIG. 16 is a top view of an assembled wall and wall reinforcement;

FIG. 17 is a top view of the frame rails and the front set of posts after a covering is installed over the outside of the frame rails and the front set of posts;

in the figure: 1-prefabricated foundation, 11-concrete base, 2-steel structure framework, 21-front upright post, 22-rear upright post, 23-side upright post, 201-bottom plate, 202-section steel upright post, 203-vertical plate, 3-assembled wall body, 31-wall plate, 32-heat-insulation composite plate, 33-metal clamping sleeve, 331-flange part, 332-Z-shaped connecting part, 34-inverted U-shaped metal clamping sleeve, 4-front connecting beam, 5-rear connecting beam, 6-framework beam, 61-fixing plate, 7-purlin, 71-through hole, 8-covering, 9-wall body reinforcing device, 91-reinforcing seat, 92-steel wire rope, 93-turnbuckle, 94-nut, 951-fixing ring, 95-bolt and 96-connecting ring.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present specification, the terms "front", "rear", "left", "right", "inner", "outer" and "middle" are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship between the terms and the corresponding parts are also regarded as the scope of the present invention without substantial changes in the technical contents.

As shown in fig. 1 to 17, the assembled greenhouse comprises a prefabricated foundation 1, a steel structure framework 2 and an assembled wall body 3.

As shown in fig. 6, 7, 8 and 9, the prefabricated foundation 1 is disposed on the ground, the prefabricated foundation 1 includes a plurality of concrete bases 11, the concrete bases 11 located at the front side are arranged at intervals, and the concrete bases 11 located at the left and right sides and the rear side are arranged in sequence. In this embodiment, the side of the greenhouse facing the sun is the front, and the side facing the back of the sun is the back; the direction perpendicular to the front-rear direction in the horizontal plane is the left-right direction.

The steel structure framework 2 comprises a front vertical column group, a rear vertical column group and two side vertical column groups which are fixedly arranged on the prefabricated foundation 1; the front column group comprises a plurality of front columns 21 distributed at intervals, the rear column group comprises a plurality of rear columns 22 distributed at intervals, the height of each rear column 22 is higher than that of the front column 21, and each side column group comprises a plurality of side columns 23 which gradually decrease from the rear to the front and are distributed at intervals. Specifically, each of the front pillar 21, the rear pillar 22 and the side pillars 23 includes a bottom plate 201 and a steel pillar 202 provided on the bottom plate 201, and the bottom plate 201 is fixed to the prefabricated foundation 1 by a fastener (not shown), which is preferably an expansion bolt. In this embodiment, the steel section columns are H-shaped steel columns. As shown in fig. 7, two opposite vertical plates 203 are also arranged on the wing plates of the H-shaped steel upright at the intersection of the rear part and the side part so as to form a slot for accommodating the side wall plate.

As shown in fig. 10, 11 and 12, the assembled wall body 3 includes wall panels 31 and thermal insulation composite boards 32, wherein the wall panels 31 are disposed between adjacent rear pillars 22 and between adjacent side pillars (not shown), and specifically, the wall panels 31 are inserted between wing grooves of adjacent H-shaped steel pillars. And the heat-insulating composite boards 32 are arranged on two sides of the wall board 31, so that the heat-insulating effect is better compared with a wall body built by traditional clay bricks. Of course, as an alternative, an insulating composite panel 32 may be provided on one side of the wall panel 31. In this embodiment, the wall panel 31 is preferably a lightweight wall panel and the insulation composite panel 32 is preferably a rock wool composite panel. It should be noted that a door is provided on the side mounting wall.

As shown in fig. 12, 13, 14 and 15, in particular, a metal ferrule 33 for accommodating the bottom of the thermal insulation composite board 32 is fixedly mounted on the bottom plate 201, the metal ferrule 33 includes two oppositely disposed flange portions 331 and a Z-shaped connecting portion 332 connecting the two flange portions 331, and the metal ferrule 33 not only plays a role of fixing the thermal insulation composite board 32, but also plays a role of waterproofing. The top of the assembled wall body 3 is provided with an inverted U-shaped metal cutting sleeve 34, and the inverted U-shaped metal cutting sleeve 34 can play a role in protecting the wall panel 31 and the heat-insulating composite board 32. Preferably, the metal ferrule 33 and the inverted U-shaped metal ferrule 34 are preferably tinplate.

As shown in fig. 1, 2 and 4, a front connecting beam 4 is arranged between the tops of adjacent front columns, a rear connecting beam 5 is arranged between the tops of adjacent rear columns, and preferably, the front connecting beam 4 and the rear connecting beam 5 are both made of channel steel; a plurality of framework beams 6 distributed at intervals are arranged between the rear connecting beam 5 and the front connecting beam 3 in a spanning mode, and a plurality of purlins 7 distributed at intervals are arranged between every two adjacent framework beams 6. Preferably, the framework beams are hollow steel tubes, the purlins are C-shaped steel, and the framework beams 6 can be fixed on the front connecting beam 4 and the rear connecting beam 5 in a welding mode.

As shown in fig. 3, specifically, the framework beam 6 is provided with a fixing plate 61 for connecting the purlins 7, and a fastener (not shown in the figure) is provided between the fixing plate 61 and the purlins 7, and the fastener is preferably a bolt and a nut, in this embodiment, the fixing plate 61 is provided with a strip-shaped hole (not shown in the figure) for passing a bolt, and the purlins 7 are provided with through holes 71 for passing a bolt. Of course, as an alternative, a strip-shaped hole for passing the bolt may be formed on the purline 7, and a through hole for passing the bolt may be formed on the fixing plate 61.

As shown in fig. 17, the covering 8 is disposed on the top of the frame beam and outside the front pillar set, and the covering 8 may be glass, or a greenhouse film, etc., which are not described herein again.

As shown in fig. 1, 2, 4, 5 and 16, in order to enhance the bearing capacity of the greenhouse structure and enhance the resistance of the greenhouse against wind load and snow load, the assembled greenhouse further comprises wall reinforcing devices 9 arranged corresponding to the rear upright posts and the side upright posts, and the structural stability is good through the wall reinforcing devices 9; the wall body reinforcing device 9 comprises reinforcing seats 91 arranged corresponding to the rear upright posts 22 and the side upright posts, preferably, the reinforcing seats 91 are reinforced concrete seats, the reinforcing seats 91 are positioned outside the prefabricated foundation 1 and have certain distance with the prefabricated foundation 1, steel wire ropes 92 are arranged between the upper parts of the rear upright posts 22 and the side upright posts and the corresponding reinforcing seats 91, and basket bolts 93 are arranged on the steel wire ropes 92, so that oblique pulling force is respectively applied to corresponding assembled wall bodies through the reinforcing seats 91 and the steel wire ropes 92, and the wall body reinforcing device 9 is simple in structure and low in cost; the steel wire rope 92 can be quickly tensioned by adjusting the turn buckle 93, so that the adjustment is convenient.

In order to facilitate the end fixing of the steel wire rope 92, nuts 94 are respectively arranged on the upper portions of the rear upright post 22 and the upper portions of the side upright posts, a bolt 95 with a fixing ring 951 is connected to each nut 94 in a threaded manner, and in this embodiment, the bolt 95 penetrates through the heat-insulating composite board 32; the reinforcing base 91 is fixedly provided with a connecting ring 96, the upper end of the steel wire rope 92 is connected with the fixing ring 951, and the lower end is connected with the connecting ring 96.

In order to achieve a good reinforcing effect, the reinforcing seat 91 is buried below the ground, so that the reinforcing seat 91 and the steel wire rope 92 can respectively apply a large oblique pulling force to the corresponding assembled wall, and a good reinforcing effect is achieved.

The embodiment of the invention also discloses a construction method of the assembled greenhouse, which comprises the following steps:

A) as shown in fig. 6, laying a prefabricated foundation 1;

B) respectively fixedly installing a plurality of front upright posts 21 of the front upright post group, a plurality of rear upright posts 22 of the rear upright post group and a plurality of side upright posts 23 of the two side upright post groups on the prefabricated foundation 1; specifically, the bottom plate of each upright post is fixed on the prefabricated foundation 1 through expansion bolts;

C) as shown in fig. 10 and 11, wall panels 31 are installed between adjacent rear pillars 22 and between adjacent side pillars, and insulation composite panels 32 are installed on both sides of the wall panels 31; as shown collectively in fig. 12 to 15, specifically, metal ferrules 33 are welded on both sides of the bottom plate 201, the insulation composite panel 32 is put into the metal ferrules 33, and then the inverted U-shaped metal ferrules 34 are mounted on the top of the wall plate 31 and the insulation composite panel 32. Of course, as an alternative, it is also possible to install the thermal composite panel 32 on only one side of the wall panel 31;

D) as shown in fig. 16, installing the wall reinforcing device 9, specifically, digging a groove for placing the reinforcing seat 91 at the outer part of the prefabricated foundation, placing the reinforcing seat 91 in the groove, as shown in fig. 2, 4 and 5 together, installing the connecting ring 96 on the reinforcing seat 91, and preferably fixing the base of the connecting ring 96 on the reinforcing seat 91 by using expansion bolts; bolts 95 with fixing rings 951 are screwed into nuts 94 of the rear upright post 22 and the side upright posts, a steel wire rope 92 is connected between a connecting ring 96 and the fixing rings 951, and the basket bolts 93 are adjusted to tighten the steel wire rope 92;

E) as shown in fig. 1, 2 and 4, a front connecting beam 4 is installed between tops of adjacent front uprights 21, a rear connecting beam 5 is installed between tops of adjacent rear uprights 22, preferably, the front connecting beam 4 can be fixed on the front uprights 21 in a welding manner, the rear connecting beam 5 can also be fixed on the rear uprights 22 in a welding manner, a plurality of framework beams 6 distributed at intervals are installed between the rear connecting beam 5 and the front connecting beam 4, and preferably, two ends of the framework beams 6 are also fixed on the rear connecting beam 5 and the front connecting beam 4 respectively in a welding manner;

F) as shown in fig. 1 and 3, a plurality of purlins 7 distributed at intervals are installed between adjacent framework beams 6, and specifically, the purlins 7 are fixedly installed on fixing plates 61 of the framework beams 6 by bolts and nuts;

G) as shown in fig. 17, a cover 8 is provided on the top of the installed skeleton beam and outside the front pillar group.

Because each component of above-mentioned big-arch shelter can carry out prefabrication production earlier in the mill, then transport the scene and assemble, not only guaranteed the quality and the size accuracy of each component, construction speed is fast moreover, has shortened construction cycle greatly.

In conclusion, the fabricated greenhouse and the construction method thereof provided by the embodiment of the invention have the advantages of good heat insulation effect, factory prefabrication, quick field assembly, good structural stability, short construction period, good economic benefit and social benefit, and can be widely applied to the construction of agricultural greenhouses.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.