阅读说明：本技术 后浇带支撑体系 (Post-cast strip supporting system ) 是由 杨文静 曹秀玲 王俊锋 杨愦绪 何丛飞 杜鹏超 白毅军 于 2020-05-25 设计创作，主要内容包括：本发明提供了一种后浇带支撑体系,属于建筑施工技术领域,包括支撑杆、固定支撑体、活动支撑体以及第二次龙骨,支撑杆的数量为多个；固定支撑体固设于支撑杆的上端；固定支撑体上设有用于支撑固定加强板带的第一主龙骨；活动支撑体可拆卸连接于支撑杆上；活动支撑体上设有第二主龙骨,第二主龙骨上设有用于支撑可拆板带的第一次龙骨；第二主龙骨与第一主龙骨相垂直；第二次龙骨安装在拆卸后的活动支撑体上；第二次龙骨上设有支撑模板,本发明提供的后浇带支撑体系,工作人员仅需在拆卸活动支撑体,并在活动支撑体上安装用于支撑后浇带的第二次龙骨和支撑模板,达到对后浇带预先支撑的目的,不仅提升了施工效率,同时保证了后浇带浇筑的质量。(The invention provides a post-cast strip supporting system, which belongs to the technical field of building construction and comprises a plurality of supporting rods, a fixed supporting body, a movable supporting body and a secondary keel, wherein the number of the supporting rods is multiple; the fixed support body is fixedly arranged at the upper end of the support rod; the fixed support body is provided with a first main keel for supporting and fixing the reinforcing plate strip; the movable support body is detachably connected to the support rod; the movable support body is provided with a second main keel, and the second main keel is provided with a first-time keel for supporting the detachable plate strip; the second main keel is vertical to the first main keel; the second keel is arranged on the disassembled movable support body; according to the post-cast strip supporting system provided by the invention, the worker only needs to disassemble the movable supporting body and install the second keel and the supporting template for supporting the post-cast strip on the movable supporting body, so that the purpose of pre-supporting the post-cast strip is achieved, the construction efficiency is improved, and the casting quality of the post-cast strip is ensured.)

1. Post-cast strip braced system, its characterized in that includes:

a plurality of support rods are vertically arranged;

the fixed support body is fixedly arranged at the upper end of the supporting rod; the fixed supporting body is provided with a first main keel for supporting and fixing the reinforcing plate strip;

the movable support body is detachably connected to the support rod and is positioned below the fixed support body; the movable support body is provided with a second main keel, and the second main keel is provided with a first-time keel for supporting the detachable plate strip; the second main keel is vertical to the first main keel; the fixed reinforcing plate strip and the detachable plate strip are tightly spliced through the first keel;

the second main keel is arranged on the second main keel after being disassembled and is positioned below the post-cast strip; and a supporting template for supporting the concrete of the poured post-cast strip is arranged on the second keel.

2. The post-cast strip support system of claim 1, wherein the support bar comprises:

the upright post is used for vertically supporting;

the screw is arranged at the upper end of the upright post; the movable support body is provided with a through hole matched with the screw rod; the movable support body is detachably connected with the screw rod through a first nut; the fixed support body is fixed on the screw rod.

3. The post-cast strip support system according to claim 2, wherein the movable support body is provided with two grooves which are respectively arranged at two sides of the through hole; the second main keels are two and are respectively installed in the corresponding grooves.

4. The post-cast strip support system of claim 2, wherein the threaded rod is threadedly connected to the post, and a second nut for fastening the threaded rod and the post is connected to the threaded rod.

5. The post-cast strip support system of claim 1, wherein the fixed support body is provided with a mounting groove for mounting the first main runner.

6. The post-cast strip support system of claim 5, wherein the first main runners are square tubes, two in number, mounted in the mounting channel.

7. The post-cast strip support system of claim 1, wherein the plurality of second secondary keels are uniformly distributed on a section of the second main keel corresponding to the post-cast strip.

8. The post-cast strip support system according to any one of claims 1 to 7, wherein a connecting disc is fixedly arranged on the outer side surface of each support rod, a plurality of clamping holes are formed in the connecting disc, a horizontal rod is arranged between every two adjacent support rods, and two ends of each horizontal rod are respectively provided with a clamping head for being inserted into the clamping holes.

9. The post-cast strip support system according to any one of claims 1 to 7, wherein two ends of the support formwork are used for abutting against the lower end face of the concrete, and sealing strips are respectively arranged at two ends of the support formwork for sealing.

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a post-cast strip supporting system.

Background

The casting belt before and after the current situation has the following problems: 1. when beam plates on two sides of the post-cast strip cannot be synchronously poured, a single-side post-cast strip independent support is formed, a post-cast strip template is reserved for convenient construction and secondary support, the single-side post-cast strip is usually removed in a construction site, and then the post-cast strip is supported and reinforced by jacking, so that the beam plates are changed into cantilever members after the template is removed, the stress mode of the beam plates is changed, and the root parts of the beam plates are easy to crack or slightly change; the post-cast strip support is reinforced again after being detached, and actually, the stress mode of the beam plate is changed at the moment of detaching the post-cast strip support, deformation is generated, and the re-reinforcement only plays a role in not continuously deforming; 2. when beam plates on two sides of the post-cast strip are synchronously constructed, the post-cast strip template is erected at one time without being dismantled, and the loose concrete base layers on two sides and various impurities falling into the post-cast strip template in the future are difficult to remove, particularly small broken ash residues, saw dust and the like, so that the template is not thoroughly cleaned and slag inclusion occurs; 3. support points are reserved at the beam slab bottoms on two sides of the post-cast strip, a secondary formwork is adopted during filling of the post-cast strip, the workload is increased by formwork re-supporting, meanwhile, due to micro-deformation of the beam slabs, the formwork is not tightly contacted with the concrete surface, and when concrete is poured in the post-cast strip, concrete slurry is extruded along gaps, so that new concrete at the joint of new and old concrete is easy to protrude outwards and leak; the problems are combined, the structural quality of the post-cast strip is influenced, and the appearance is not ideal.

Disclosure of Invention

The invention aims to provide a post-cast strip supporting system, which aims to solve the technical problem that the post-cast strip supporting mode in the prior art reduces the quality of a post-cast strip structure.

In order to achieve the purpose, the invention adopts the technical scheme that: providing a post-cast strip support system comprising:

a plurality of support rods are vertically arranged;

the fixed support body is fixedly arranged at the upper end of the supporting rod; the fixed supporting body is provided with a first main keel for supporting and fixing the reinforcing plate strip;

the movable support body is detachably connected to the support rod and is positioned below the fixed support body; the movable support body is provided with a second main keel, and the second main keel is provided with a first-time keel for supporting the detachable plate strip; the second main keel is vertical to the first main keel; the fixed reinforcing plate strip and the detachable plate strip are tightly spliced through the first keel;

the second main keel is arranged on the second main keel after being disassembled and is positioned below the post-cast strip; and a supporting template for supporting the concrete of the poured post-cast strip is arranged on the second keel.

As another embodiment of the present application, the support rod includes:

the upright post is used for vertically supporting;

the screw is arranged at the upper end of the upright post; the movable support body is provided with a through hole matched with the screw rod; the movable support body is detachably connected with the screw rod through a first nut; the fixed support body is fixed on the screw rod.

As another embodiment of the present application, two grooves are formed on the movable support body, and the two grooves are respectively disposed on two sides of the through hole; the second main keels are two and are respectively installed in the corresponding grooves.

As another embodiment of the application, the screw is in threaded connection with the upright column, and a second nut used for fastening the screw and the upright column is connected to the screw.

As another embodiment of this application, be equipped with on the fixed stay and be used for installing the mounting groove of first main joist.

As another embodiment of this application, first main joist is square pipe, and quantity is two, install in the mounting groove.

As another embodiment of this application, the secondary fossil fragments are a plurality of, the equipartition in the second main joist is with on the section that the post-cast strip corresponds.

As another embodiment of the present application, a connection pad is fixedly disposed on an outer side surface of each of the support rods, a plurality of clamping holes are disposed on the connection pad, a horizontal rod is disposed between two adjacent support rods, and two ends of each horizontal rod are respectively provided with a clamping head inserted into the clamping holes.

As another embodiment of the application, two ends of the supporting template are used for abutting against the lower end face of concrete, and sealing strips for sealing are respectively arranged at two ends of the supporting template.

The post-cast strip supporting system provided by the invention has the beneficial effects that: compared with the prior art, the post-cast strip supporting system has the advantages that a plurality of supporting rods are vertically fixed below a layer to be cast, the first main keel is arranged on the fixed supporting body fixed at the upper end of each supporting rod, the fixed reinforcing plate strip in contact with the layer to be cast is arranged on the first main keel, the movable supporting body is adjusted, the second main keel and the first main keel cannot interfere with each other by means of the first main keel, the layer to be cast is supported through the detachable plate strip, meanwhile, the length direction of the second main keel is perpendicular to the length direction of the first main keel, the layer to be cast is stably supported, then the layers to be cast on two sides of the post-cast strip are stably supported, after concrete on the layer to be cast is hardened, the movable supporting body is driven to drive the second main keel and the detachable plate strip to move downwards, and the concrete is continuously supported by the first main keel and the fixed reinforcing plate; after the movable support body moves downwards, the second keel is arranged on one section of the movable support body below the post-cast strip, the supporting template is arranged on the second keel to support the post-cast strip, and pouring of the post-cast strip is finished at last.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a first schematic structural diagram of a post-cast strip support system provided by an embodiment of the invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a partial schematic view of a post-cast strip support system provided by an embodiment of the present invention;

FIG. 4 is a second structural schematic view of a post-cast strip support system provided by an embodiment of the present invention;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a third schematic structural view of a post-cast strip support system provided by an embodiment of the present invention;

FIG. 7 is an enlarged view at C of FIG. 6;

FIG. 8 is a schematic view of the connection of a support rod and a horizontal rod provided in accordance with an embodiment of the present invention;

FIG. 9 is a schematic view of the connection of horizontal reinforcing rods provided in the embodiment of the present invention;

FIG. 10 is a first structural schematic view of a single-sided post-cast strip support system according to an embodiment of the present invention;

FIG. 11 is a second structural schematic view of a single-sided post-cast strip support system according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a non-detachable strip according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1. a support bar; 11. a column; 12. a screw; 121. a first nut; 122. a second nut; 13. a connecting disc; 131. a clamping hole; 14. a horizontal bar; 141. clamping a head; 15. a vertical cross stiffener; 16. the main body is full of the formwork; 17. a horizontal stiffener; 18. a temporary tie rod; 2. fixing the support body; 21. a first main keel; 22. fixing the reinforcing plate strip; 23. mounting grooves; 3. a movable support; 31. a second main keel; 32. a detachable plate belt; 33. a first keel; 34. a groove; 4. a second keel; 41. supporting the template; 42. a sealing strip; 5. and (5) post-pouring the strip.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 7, a post-cast strip support system according to the present invention will now be described. A post-cast strip supporting system comprises a plurality of supporting rods 1, a fixed supporting body 2, a movable supporting body 3 and a secondary keel 4, wherein the supporting rods 1 are vertically arranged; the fixed support body 2 is fixedly arranged at the upper end of the support rod 1; the fixed support body 2 is provided with a first main keel 21 for supporting and fixing a reinforcing plate strip 22; the movable support body 3 is detachably connected to the support rod 1 and is positioned below the fixed support body 2; the movable support body 3 is provided with a second main keel 31, and the second main keel 31 is provided with a first-time keel 33 for supporting a detachable plate belt 32; the second main keel 31 is perpendicular to the first main keel 21; the fixed reinforcing plate strip 22 and the detachable plate strip 32 are tightly spliced through a first keel 33; the second main keel 31 is arranged on the second main keel 4 after being disassembled and is positioned below the post-cast strip 5; and a supporting template 41 for supporting concrete of the poured post-cast strip 5 is arranged on the second keel 4.

Compared with the prior art, the post-cast strip supporting system provided by the invention vertically fixes a plurality of supporting rods 1 below a layer to be cast, a first main keel 21 is arranged on a fixed support body 2 fixed at the upper end of a support rod 1, a fixed reinforcing plate strip 22 contacting with a layer to be poured is arranged on the first main keel 21, a movable support body 3 is adjusted, a second main keel 31 and the first main keel 21 can not interfere by means of a first keel 33, the layer to be poured is supported by a detachable plate strip 32, meanwhile, the length direction of the second main keel 31 is vertical to the length direction of the first main keel 21, so as to achieve the purpose of stably supporting the layer to be poured, then pouring concrete to the to-be-poured layers on the two sides of the post-pouring belt 5, after the concrete on the to-be-poured layers reaches the designed strength, the movable support body 3 is driven to drive the second main keel 31 and the detachable plate band 32 to move downwards, and the first main keel 21 and the fixed reinforcing plate band 22 continue to support concrete; after movable support body 3 moves down, set up secondary keel 4 on the section that second main joist 31 is located post-cast strip 5 below, and set up supporting template 41 and prop up post-cast strip 5 on secondary keel 4, accomplish pouring of post-cast strip 5 at last, through this kind of mode, the staff only need be dismantling movable support body 3, and install secondary keel 4 and supporting template 41 that are used for supporting post-cast strip 5 on movable support body 3, reach the purpose of supporting in advance post-cast strip 5, not only promote the efficiency of construction, the quality of pouring of post-cast strip 5 has been guaranteed simultaneously. Meanwhile, a support system for the post-cast strip does not need to be independently erected from the ground or be erected again, so that the workload is reduced, and the labor intensity is reduced. And the concrete on the two sides of the post-cast strip 5 is always supported by the fixed reinforcing plate strips 22 and cannot deform.

Before construction, a plurality of support rods 1 are respectively arranged on two sides of a post-cast strip 5, a fixed reinforcing plate strip 22 and a detachable plate strip 32 are respectively supported by a plurality of fixed support bodies 2 and movable support bodies 3 to form a first-step concrete pouring support system, after concrete pouring on two sides of the post-cast strip 5 is completed and the design strength is reached, the fixed support bodies 2 and the fixed reinforcing plate strip 22 are kept still, concrete bodies on two sides of the post-cast strip 5 are continuously supported, and the stability and the design stress performance of a concrete cantilever structure are guaranteed not to be changed; dismantle movable support body 3, drive first fossil fragments 33 and removable slab band 32 and move down, then set up secondary fossil fragments 4 on the section that second main joist 31 is located post-cast strip 5 below, and install support template 41 in the below of post-cast strip 5 on secondary fossil fragments 4, then control movable support body 3 again and move up along bracing piece 1, the width that sets up support template 41 is greater than the width of post-cast strip 5, make support template 41's both sides butt on the concrete of 5 both sides of post-cast strip, accomplish the support system setting to post-cast strip 5, it can to carry out the operation of pouring of post-cast strip 5 at last.

Set up main part full hall frame template 16 in the independent support system one side of post-cast strip, handle through the piece and realize propping up with the part of main part full hall frame and post-cast strip support system and establish, demolish, the layer of waiting to pour is played in the support of also further simultaneously, realizes the whole stability of main part full hall frame and post-added area support system. The main body full framing formwork 16 is tightly spliced with the fixed reinforcing plate strip 22 through the first keel 33. After the concrete on the two sides of the post-cast strip 5 is poured, the detachable strip 32 and the main body full frame formwork 16 are detached together. The full hall of main part frame template 16 is supported by bracing piece 1 and the first main joist 21 and the first fossil fragments 33 of locating on the bracing piece 1, and bracing piece 1 under the full hall of main part frame template 16 is connected through interim drawknot pole 18 with the bracing piece 1 under the fixed reinforcing plate area 22 between, has strengthened the overall stability of whole support system. The temporary tie rods 18 are removed together with the main body full framing formwork 16 and the support rods 1 below the main body full framing formwork; connecting discs 13 are arranged on the supporting rod 1, clamping holes 131 are arranged on the connecting discs 13, and the temporary tie rods 18 are connected to the two adjacent connecting discs 13 in a socket-and-spigot mode.

Referring to fig. 1 to 7, as an embodiment of the post-cast strip support system provided by the present invention, the support rod 1 includes a vertical column 11 and a screw 12, wherein the vertical column 11 is used for vertical support; the screw 12 is arranged at the upper end of the upright post 11; the movable support body 3 is provided with a through hole matched with the screw 12; the movable support body 3 and the screw 12 are detachably connected through a first nut 121; the fixed support body 2 is fixed on a screw 12, the upright post 11 is vertically arranged and fixed on the ground, and the diameter of the screw 12 is smaller than that of the upright post 11. When in use, the through hole on the movable support body 3 is arranged on the screw 12 in a matching way, and then the fixed support body 2 is fixed at the top end of the screw 12; when the movable supporting body 3 needs to be adjusted, the first nut 121 can be loosened, the movable supporting body 3 can be moved up and down by virtue of the through hole, and when the movable supporting body 3 needs to be fixed, the movable supporting body 3 is moved up to enable the detachable plate belt 32 to support a layer to be poured and is locked by the first nut 121.

Referring to fig. 2 and fig. 3, as a specific embodiment of the post-cast strip support system provided by the present invention, two grooves 34 are formed on the movable support body 3, and the two grooves 34 are respectively disposed on two sides of the through hole; the second main joist 31 is two, installs respectively in the recess 34 that corresponds, sets up two recesses 34 in the bilateral symmetry of through-hole, and every recess 34 all is used for installing a second main joist 31, consequently by each first time fossil fragments 33 on two second main joist 31 and removable slab band 32 fixed connection and support and play and treat the layer of pouring, make still can play stably when concreting support and piece effect.

Referring to fig. 1 to 5, as a specific embodiment of the post-cast strip support system provided by the present invention, the screw 12 is connected to the upright post 11 in a threaded manner, the screw 12 is connected to the second nut 122 for fastening the screw 12 and the upright post 11, the upright post 11 is provided with a connection hole, the hole wall of the connection hole is provided with an internal thread, and the lower end of the screw 12 is connected to the connection hole in a threaded manner, so that the heights of the fixed support body 2 and the movable support body 3 can be changed by adjusting the working length of the screw 12, and the application range of the post-cast strip support system can be increased. The diameter of the screw 12 is slightly smaller than that of the upright post 11, and the allowable gap of the screw 12 inserted into the upright post 11 must be within the specification allowable range; the diameter of the screw 12 is large, the connection strength is high, the fixed support body 2 and the movable support body 3 can be supported, the upper end face of the upright post 11 has enough space, and the upright post 11 and the screw 12 can be locked more stably by the second nut 122.

Referring to fig. 1 and 2, as a specific embodiment of the post-cast strip support system provided by the present invention, the fixed support body 2 is provided with an installation groove 23 for installing the first main keel 21, two ends of the installation groove 23 are open, and the other two ends are limited, so that the first main keel 21 is conveniently installed in the installation groove 23 because the first main keel 21 is in a strip shape. And the slot wall of the mounting slot 23 limits the first main keel 21, so that the stability of the first main keel 21 can be improved. The section height dimension that sets up first main joist 21 simultaneously is greater than the groove depth of mounting groove 23, after installing first main joist 21 to mounting groove 23 in, satisfies the up end that the most high side of first main joist 21 is higher than fixed support body 2.

Referring to fig. 1 and 2, as a specific embodiment of the post-cast strip support system provided by the present invention, the first main keel 21 is a square pipe, the number of the first main keel 21 is two, the first main keel 21 is installed in the installation groove 23, and the square pipe is used as the first main keel 21, so that the weight of the first main keel 21 can be effectively reduced, and the post-cast strip support system is convenient for workers to carry and install. Meanwhile, the square tube is more stable in the mounting groove 23 and cannot roll and rotate randomly, so that the reinforcing plate strip 22 can be better supported and fixed. Set up square pipe and be two, can increase the support area who manages square effectively, and then improve the stability of waiting to pour the layer support. The square tube is made of steel and has high strength.

Referring to fig. 6 and 7, as a specific embodiment of the post-cast strip support system provided by the present invention, the plurality of second keels 4 are uniformly distributed on a section of the second main keel 31 corresponding to the post-cast strip 5, the plurality of second keels 4 are uniformly distributed along the length direction of the second main keel 31, and after the support template 41 is installed on each second keel 4, the strength is high and the stability is good, and the quality of the post-cast strip 5 after casting is ensured. The width that sets up support template 41 is greater than the width size of post-cast strip 5, and the both sides of support template 41 stretch into the concrete below of post-cast strip 5 both sides respectively to set up secondary keel 4 under the section of support template 41 stretching into the below of post-cast strip 5 both sides concrete, this kind of mode can further improve the support intensity of support template 41 to post-cast strip 5, can improve the leakproofness between post-cast strip 5 and the both sides concrete again. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 9, as a specific embodiment of the post-cast strip support system provided by the present invention, a connection pad 13 is fixedly disposed on an outer side surface of each support rod 1, the connection pad 13 is provided with a plurality of clamping holes 131, a horizontal rod 14 is disposed between two adjacent support rods 1, two ends of the horizontal rod 14 are respectively provided with a clamp 141 inserted into the clamping holes 131, the plurality of support plates are disposed below a layer to be cast in a rectangular shape, the outer side surface of each support plate is provided with the connection pad 13, four clamping holes 131 are uniformly disposed on the connection pad 13, and then two ends of the outer side surface of the horizontal rod 14 are respectively provided with the clamp 141 extending outward, so that the strength of the support rod 1 can be increased by using the horizontal rod 14 between any two adjacent support rods 1, and the clamps 141 at two ends of the horizontal rod 14 are installed into the corresponding clamping holes 131, which is quick to install and. The socket type disc buckle type mounting structure is reliable in strength, rigidity and stability, construction safety is effectively guaranteed, the mounting and dismounting are rapid, and construction efficiency is greatly improved. A vertical crossed reinforcing rod 15 is also arranged between two adjacent supporting rods 1; this vertical cross form stiffener 15 is located between post-cast strip support system bottom and the top, and is articulated fixed with bracing piece 1 for further strengthen whole post-cast strip support system's intensity stability, set up a plurality of horizontal stiffeners 17 on the horizontal direction, be used for strengthening the support system stability under post-cast strip 5.

Referring to fig. 1 to 8, as a specific embodiment of the post-cast strip support system provided by the present invention, two ends of a support form 41 are used for abutting against a lower end surface of concrete, two ends of the support form 41 are respectively provided with a sealing strip 42 for sealing, two ends of the support form 41 extend into the lower end surface of the poured concrete, the support form 41 abuts against the concrete along with the second keel 4 under the action of the movable support body 3, and two ends of the support form 41 are respectively provided with a sealing strip 42, so that a sealing structure is formed between the support form 41 and the concrete, and a leakage accident is prevented during the process of pouring the post-cast strip 5. The sealing strip 42 may be made of sponge tape or rubber pad.

As an embodiment, please refer to fig. 10 and 11, when beam slabs on two sides of a post-cast strip cannot be synchronously cast due to the influence of external factors, the support system is used for supporting the single-side post-cast strip, the plurality of support rods 1 are vertically fixed below a single-side layer to be cast, the single-side layer to be cast is stably supported by the aid of the fixed reinforcing plate strip 22 on the first main keel 21, the detachable plate strip 32 on the second main keel 31 and the main body full-framing formwork 16, after the casting is completed, the main body full-framing formwork 16 and the detachable plate strip 32 are detached, the fixed reinforcing plate strip 22 is ensured to be still, the support of the layer to be cast is always kept, the formwork does not need to be jacked up for the second time, the stress mode of the beam slabs is ensured to be inconvenient, and cracks or micro-changes cannot occur at the root. The mode is convenient for cleaning broken small ash slag, wood chips and the like generated by post-cast strip base layer treatment, scabbling and the like in the construction process.

As an example, please refer to fig. 12, when in use, a plurality of support rods 1 are vertically fixed below the to-be-poured layer at two sides of the post-poured strip, and the to-be-poured layer at two sides of the post-poured strip is stably supported by means of the fixing and reinforcing plate strips 22 on the first main keels 21, the detachable plate strips 32 on the second main keels 31 and the main body full framing formwork 16, and the second main keels 31 are of an integral structure penetrating through the lower portion of the to-be-poured layer at two sides of the post-poured strip 5, so that a plurality of second sub keels 4 can be arranged on a section of the second main keel 31 below the post-poured strip 5, and the supporting formworks 41 for supporting the post-poured strip are fixedly installed on the second sub keel, in this way, after the concrete is poured on the to-be-poured layer, the detachable plate strips 32 on the first sub keel 33 are not removed, and ensuring that the supporting template 41 on the second keel 4 always ensures the state of supporting the post-cast strip 5, and directly performing pouring operation on the post-cast strip 5 after the concrete on the two sides of the post-cast strip 5 is hardened. The mode is suitable for the situation that impurities such as broken small ash slag, sawdust and the like are cleaned out by other modes, and meanwhile, secondary formwork support is not needed, so that the workload is reduced.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.