CN110193879B - Die for preparing permanent beam template and permanent beam template preparation method - Google Patents

Abstract

The invention discloses a permanent beam template preparation mold and a permanent beam template preparation method, which belong to the technical field of building construction and solve the problem that the existing pouring method is not suitable for PVA fiber cement-based permanent beam template. The mold for permanent beam formwork preparation includes a variable-angle pedestal and a beam body formwork; the variable-angle pedestal includes a variable-angle base, a variable-angle splice plate and a beam formwork fixing slot, and the variable-angle base includes a base panel and a base bottom plate, and the variable-angle base includes a base panel and a base bottom plate. The angle splicing plate is detachably connected with the base panel; the beam body formwork comprises a beam body formwork bottom plate, a first beam body formwork side plate and a second beam body formwork side plate; the beam body formwork is detachably connected with the variable angle pedestal. The preparation method of the invention is as follows: preparing mortar; preparing bottom plate and side plate of permanent beam formwork; curing permanent beam formwork. The mold for preparing the permanent beam formwork and the preparation method for the permanent beam formwork of the present invention are suitable for the preparation of the PVA fiber cement-based permanent beam formwork.

Description

A kind of permanent beam formwork preparation mould and permanent beam formwork preparation method

technical field

The invention belongs to the technical field of building construction, and particularly relates to a mold for preparing permanent beam formwork and a method for preparing the permanent beam formwork.

Background technique

In the construction process, the formwork works account for 20-30% of the project cost, 30-40% of the labor, and 50-60% of the construction period, which consumes a lot of resources. Wood formwork and metal formwork are often used in formwork projects. Among them, wooden formwork has a short cycle period, consumes a lot of non-renewable resources, and is not environmentally friendly, while metal formwork is expensive. Moreover, both of the two formwork require formwork support and formwork removal, which not only consumes manpower, but also requires a long construction period.

At present, permanent formwork that can be dismantled is commonly used, but the current formwork without dismantling is affected by the drop load of concrete when concrete is poured after the formwork is supported. The beam will have problems with bending deformation and cracks at the bottom of the beam.

PVA chopped fibers have good tensile properties, which can better control the development of cracks, and fiber woven meshes are also widely used in reinforcement projects, which can improve the bearing capacity of beams. Applied to the production of permanent beam formwork, it can effectively improve the bearing capacity and crack resistance of permanent beam formwork, but in the preparation process, it is not only difficult to cooperate with PVA chopped fiber and fiber woven mesh to prepare permanent formwork In addition, due to the poor fluidity of the PVA fiber cement matrix, the traditional pouring method cannot be used.

SUMMARY OF THE INVENTION

In view of the above analysis, the present invention aims to provide a permanent beam template preparation mold and a permanent beam template preparation method, in order to solve the problem that in the prior art, the PVA chopped fiber and the fiber woven mesh are used together to prepare the permanent beam template. , the traditional pouring method is not suitable for PVA fiber cement-based permanent beam formwork and other issues.

The object of the present invention is mainly achieved through the following technical solutions:

In one aspect, the present invention provides a mold for preparing a permanent beam formwork, the mold comprises a variable-angle pedestal and a beam body formwork; the variable-angle pedestal comprises a variable-angle base, a variable-angle splice plate and a beam body formwork fixing groove, The variable-angle base includes a base panel and a base bottom plate, and the variable-angle splice plate is detachably connected to the base panel; the beam body formwork includes a beam body formwork bottom plate and a first beam body formwork side plate and a second beam body formwork side plate; the first beam body formwork side plate is provided with a first baffle to prevent the mortar from flowing out, and the second beam body formwork side plate is provided with a second baffle plate that prevents the mortar from flowing out; The beam formwork is detachably connected with the variable angle pedestal.

Further, the base panel and the variable-angle splice plate are detachably connected by bolts.

Further, one end of the side plate of the first beam body formwork close to the variable angle base is provided with a first vertical groove, and one end away from the variable angle base is provided with a second vertical groove; the side plate of the second beam body formwork is close to the variable angle base. One end of the angle base is provided with a third vertical slot, and one end away from the variable-angle base is provided with a fourth vertical slot. The first vertical slot and the third vertical slot are used for inserting the first end plate. The second vertical slot and the fourth vertical slot are used for inserting the second end plate.

Further, the materials of the variable-angle pedestal and the beam formwork are made of aluminum plates.

On the other hand, the present invention provides a method for preparing a permanent beam formwork, the preparation method comprising the following steps:

S1, prepare mortar;

S2, prepare permanent beam formwork base plate;

S3, prepare the side plate of the first permanent beam formwork;

S4, prepare the second permanent beam formwork side plate;

S5, maintain the permanent beam formwork, and complete the preparation of the permanent beam formwork.

Further, the concrete steps of preparing permanent beam formwork base plate in described S2 are:

S21. Spread the mortar on the bottom plate of the beam formwork, spread it evenly and compact it to become the first mortar layer;

S22. Dip the fiber woven mesh with glue, and after the colloid is solidified, fold it into a U-shape matching the beam formwork, and place the bottom edge of the U-shape of the fiber woven mesh on the first mortar layer, along the permanent beam. The length direction of the template is straightened, and the two sides of the U-shape are respectively fixed on the side plate of the first beam body template and the side plate of the second beam body template;

S23, spread another layer of mortar on the fiber woven net of the U-shaped bottom edge in the described S22, spread evenly and compact it to become the second mortar layer;

S24. Insert the second end plate into the second vertical groove and the fourth vertical groove, place the inner bottom plate on the second mortar layer, snap one end of the inner bottom plate into the horizontal groove of the second end plate, and then place the first One end plate is inserted into the first vertical groove and the third vertical groove to complete the preparation of the bottom plate of the permanent beam formwork.

Further, in the S22,

The width W of the fiber woven mesh satisfies the following formula: W=2h ₁ +w ₁ -2d ₁ ;

The length L of the woven fiber mesh is equal to the length L ₁ of the base plate of the permanent beam formwork;

The _U -shaped sidewall height Hu of the fiber woven mesh satisfies the following formula: Hu =h _{1 -0.5d 1} ;

The width Wu of the U-shaped bottom edge of the fiber woven mesh satisfies the following formula: _Wu = _{w 1} +d ₁ ;

In the formula, h ₁ is the height of the side plate of the permanent beam formwork, w ₁ is the width of the bottom plate of the permanent beam formwork, and d ₁ is the thickness of the bottom plate of the permanent beam formwork.

Further, the concrete steps of preparing the first permanent beam formwork side plate in the S3 are:

S31, rotating the beam body formwork 90° clockwise, so that the side plate of the first beam body formwork is parallel to the base bottom plate, and the beam body formwork is fixedly connected to the variable-angle pedestal;

S32, using the side plate of the first beam body formwork as the bottom plate of the beam body formwork at this time, opening the fiber woven mesh fixed on the side plate of the first beam body formwork, and repeating step S21;

S33, laying the fiber woven mesh in S32 on the first mortar layer in S32, laying another layer of mortar on the fiber woven mesh, smearing and compacting to become the second mortar layer;

S34, placing the first side wing plate on the second mortar layer, inserting both ends of the first side wing plate into the prefabricated grooves of the first end plate and the second end plate; completing the preparation of the side plate of the first permanent beam formwork .

Further, the concrete steps of preparing the second permanent beam formwork side plate in described S4 are:

S41, rotating the beam body formwork counterclockwise by 180°, so that the side plate of the second beam body formwork is parallel to the base bottom plate, and the beam body formwork is fixedly connected to the variable-angle pedestal;

S42, using the side plate of the second beam body formwork in S41 as the bottom plate of the beam body formwork at this time, lift off the fiber woven mesh fixed on the side plate of the second beam body formwork, and repeat step S21;

S43, spread the fiber woven mesh in S41 on the first mortar layer in S41, spread another layer of mortar on the fiber woven mesh, spread evenly and compact it to become the second mortar layer;

S44, placing the second side wing plate on the second mortar layer, inserting both ends of the second side wing plate into the prefabricated grooves of the first end plate and the second end plate; the preparation of the second permanent beam formwork side plate is completed .

Further, the mortar preparation steps in the S1 are as follows:

S11. First, add coarse sand, fine sand, cement, fly ash, and silica fume into a mixer to mix, and after mixing evenly, gradually add water, and finally slowly add a water reducing agent to obtain a uniformly mixed slurry;

S12, adding PVA chopped fibers to the mixed slurry, evenly dispersing the PVA chopped fibers into the mixed slurry, and stirring for 5-15 minutes to obtain PVA fiber mortar.

Compared with the prior art, the present invention can achieve at least one of the following technical effects:

1) The variable-angle splicing plate, the variable-angle base and the beam body formwork of the permanent beam formwork preparation mold provided by the present invention are detachably connected, and during implementation, the beam body formwork bottom plate of the beam body formwork can be parallel to the base bottom plate Place to prepare the bottom plate of permanent beam formwork, then disassemble the variable-angle splicing plate and the variable-angle base, rotate the beam formwork 90° clockwise, and then fix it with the variable-angle base to carry out the permanent beam formwork side plate The baffles on the side plate of the first beam body formwork and the side plate of the second beam body formwork can ensure that the mortar does not flow out to the side when preparing the side plate of the permanent beam formwork; the variable angle splicing plate can play a certain role It can limit the position and prevent the deformation of the beam formwork at the same time.

2) The permanent beam formwork preparation method provided by the present invention adds the PVA chopped fibers into the mixed slurry, and effectively improves the bearing capacity and crack resistance of the permanent beam formwork by precisely controlling the mass ratio of the PVA chopped fibers.

3) The slurry provided by the present invention has poor fluidity and is not suitable for traditional pouring. Permanent beam formwork can be produced efficiently and with high quality.

4) In the preparation method of the permanent beam formwork provided by the present invention, the U-shaped fiber woven mesh is an integral structure. The integrity can improve the overall consistency of the permanent beam formwork and effectively improve the strength of the permanent beam formwork.

Other features and advantages of the present invention will be set forth in the description which follows, and in part may become apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Description of drawings

The drawings are for the purpose of illustrating specific embodiments only and are not to be considered limiting of the invention, and like reference numerals refer to like parts throughout.

1 is a schematic perspective view of a mold for preparing a permanent beam formwork provided in Example 1 of the present invention;

Fig. 2 is the three-dimensional schematic diagram of the variable-angle pedestal of the mold for preparing the permanent beam formwork provided in Example 1 of the present invention;

3 is a schematic perspective view of a beam body template of a mold for preparing a permanent beam template provided in Example 1 of the present invention;

FIG. 4 is a schematic diagram of a permanent beam formwork provided in Embodiment 2 of the present invention.

Reference number:

1-variable angle pedestal; 11-variable angle base; 12-variable angle splice plate; 2-beam body formwork; 21-beam body formwork bottom plate; 22-first beam body formwork side plate; 23-second beam body formwork side plate; 31-first end plate; 32-second end plate; 41-first side plate; 42-second side plate; 5-permanent beam formwork bottom plate; 51-first permanent beam formwork side plate; 52- Second permanent beam formwork side plate; 6- Fiber woven mesh.

Detailed ways

The preferred embodiments of the present invention are described below in detail with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present application, and together with the embodiments of the present invention, serve to explain the principles of the present invention.

Example 1

The present invention provides a mold for preparing a permanent beam formwork, as shown in Figures 1-3, the mold includes a variable-angle pedestal 1 and a beam body formwork 2; the variable-angle pedestal 1 includes a variable-angle base 11, a variable-angle splice plate 12 and the beam body formwork fixing slot 13, the variable angle base 11 includes a base panel and a base bottom plate, and the variable angle splicing plate 12 is detachably connected to the base panel; the beam body formwork 2 includes a beam body formwork bottom plate 21, a first The side plate 22 of the beam body formwork and the side plate 23 of the second beam body formwork; The second baffle; the beam formwork 2 is detachably connected with the variable-angle pedestal 1 .

Specifically, the variable-angle splicing plate 12 is fixedly connected to the beam formwork fixing groove 13, and the fixed connection method includes but is not limited to welding connection, connection using a connection device, and other existing connection methods. Preferably, the method of welding connection is adopted.

In the prior art, the preparation mold of the permanent beam formwork is an inverted U shape, which can be directly poured during preparation. The angle base and the beam formwork are detachably connected. During implementation, the beam formwork base plate of the beam formwork can be placed in parallel with the base baseplate to prepare the permanent beam formwork baseplate, and then the variable angle splicing plate and the variable angle base plate can be placed. The base is disassembled, and the beam formwork is rotated and then fixed with the variable-angle base to prepare the side plate of the permanent beam formwork; the first baffle and the second baffle can ensure that the mortar is prepared during the preparation of the permanent beam formwork side plate. Do not flow out to the side; the beam body formwork fixing groove can play a certain role in limiting, and at the same time can prevent the beam body formwork from being deformed.

Specifically, the base panel and the variable-angle splicing plate are provided with bolt holes, and the base panel and the variable-angle splicing plate are detachably connected by bolts, so that in the process of preparing the permanent beam formwork bottom plate and the permanent beam formwork side plate The variable-angle splicing board can be disassembled and re-fixed to meet the needs of different processes.

Specifically, one end of the first beam formwork side plate 22 close to the variable-angle base is provided with a first vertical slot, and one end away from the variable-angle base is provided with a second vertical slot, and the second beam formwork side plate 23 is close to the variable-angle base. One end of the base is provided with a third vertical slot, and one end away from the variable-angle base is provided with a fourth vertical slot, the first vertical slot and the third vertical slot are used for inserting the first end plate 31, the second vertical slot and the fourth vertical slot The vertical slot is used to insert the second end plate 32, and the end plate is used to limit the permanent beam formwork.

Specifically, the variable-angle pedestal 1 and the beam formwork 2 are made of aluminum plate, which has a certain strength and is not easy to deform. At the same time, the aluminum plate also has the characteristics of light weight, which can ensure the light weight of the mold and facilitate operation.

Example 2

The present invention provides a method for preparing a permanent beam formwork, for example, the permanent beam formwork preparation mold in Example 1 can be used, and the preparation method includes the following steps:

S1, prepare mortar;

S2, prepare permanent beam formwork base plate;

S3, prepare the side plate of the first permanent beam formwork;

S4, prepare the second permanent beam formwork side plate;

S5, maintain the permanent beam formwork, and complete the preparation of the permanent beam formwork.

Specifically, the permanent beam formwork is a U-shaped formwork. As shown in Figure 4, the two sides of the U-shaped form are the first permanent beam formwork side plate 51 and the second permanent beam formwork side plate 52, respectively. The bottom edge of the mold is the permanent beam formwork bottom plate 5, and the permanent beam formwork side plate and the permanent beam formwork bottom plate are both the structure of the first mortar layer and the second mortar layer sandwiching a layer of fiber woven mesh 6.

Specifically, the mortar preparation steps in S1 are as follows:

S11: First add coarse sand, fine sand, cement, fly ash and silica fume into the mixer, mix for 2-5 minutes, preferably, mix for 2 minutes, after mixing evenly, gradually add water, and finally slowly add water reducing agent, and mix for 5 minutes to obtain a well-stirred mixed slurry;

S12: Add PVA chopped fibers to the mixed slurry, disperse the PVA chopped fibers evenly and sprinkle them into the mixed slurry, and stir for 5-15 minutes, preferably 10 minutes, to prepare PVA fiber mortar.

Specifically, the mass ratio of water, cement, fly ash, coarse sand, fine sand, silica fume, and water reducing agent in S11 is: (250-280): (470-490): (140-160): (850 -950): (450-470): (30-40): (5-10), the mortar obtained by mixing according to this ratio has high compressive strength, preferably, the mass ratio is: 260:480:150 :900:460:35:8.

Specifically, the proportion of PVA chopped fibers in S12 is 1%-2%. The incorporation of chopped fibers can improve the tensile properties of the matrix, and can effectively control the development of cracks in the permanent beam formwork. If the proportion of chopped fibers is too low, the tensile strength of the matrix will be limited; if the proportion is too high, the fluidity of the matrix will be poor, which is difficult to achieve in the process of making beam formwork. Therefore, the quality ratio of chopped fibers is controlled at 1 %-2%, preferably 1.2%.

Exemplarily, the specific steps of preparing the permanent beam formwork base plate in S2 are:

S21. Spread the mortar on the bottom plate of the beam formwork, spread it evenly and compact it to become the first mortar layer;

S22. Dip the fiber woven mesh with glue, and after the colloid is solidified, fold it into a U-shape matching the beam formwork, and place the bottom edge of the U-shape of the fiber woven mesh on the first mortar layer, along the permanent beam. The length direction of the template is straightened, and the two sides of the U-shape are respectively fixed on the side plate of the first beam body template and the side plate of the second beam body template;

S23, spread another layer of mortar on the fiber woven mesh at the bottom edge of the U-shaped in S22, spread it evenly and compact it to become the second mortar layer;

S24. Insert the second end plate into the second vertical groove and the fourth vertical groove, place the inner bottom plate on the second mortar layer, snap one end of the inner bottom plate into the horizontal groove of the second end plate, and then place the first One end plate is inserted into the first vertical groove and the third vertical groove to complete the preparation of the bottom plate of the permanent beam formwork. The compaction of the mortar layer can be achieved through the combined action of the inner bottom plate and the end plate, ensuring the strength of the mortar layer and shaping the shape of the permanent beam formwork.

Specifically, the thickness of the first mortar layer in S21 is 0.8-2 cm, preferably 1 cm.

Specifically, the thickness of the second mortar layer in S23 is 0.8-2 cm, preferably 1 cm.

Specifically, in S22, the width W of the fiber woven mesh satisfies the following formula: W=2h ₁ +w ₁ -2d ₁ ;

The length L of the woven fiber mesh is equal to the length L ₁ of the base plate of the permanent beam formwork;

The _U -shaped sidewall height Hu of the fiber woven mesh satisfies the following formula: Hu =h _{1 -0.5d 1} ;

The width Wu of the U-shaped bottom edge of the fiber woven mesh satisfies the following formula: _Wu = _{w 1} +d ₁ ;

In the formula, h ₁ is the height of the side plate of the permanent beam formwork, w ₁ is the width of the bottom plate of the permanent beam formwork, and d ₁ is the thickness of the bottom plate of the permanent beam formwork.

Exemplarily, the specific steps of preparing the side plate of the first permanent beam formwork in S3 are:

S31, rotating the beam body formwork 90° clockwise, so that the side plate of the first beam body formwork is parallel to the base bottom plate, and the beam body formwork is fixedly connected to the variable-angle pedestal;

S32, using the side plate of the first beam body formwork as the bottom plate of the beam body formwork at this time, opening the fiber woven mesh fixed on the side plate of the first beam body formwork, and repeating step S21;

S33, laying the fiber woven mesh in S32 on the first mortar layer in S32, laying another layer of mortar on the fiber woven mesh, smearing and compacting to become the second mortar layer;

S34, placing the first side wing plate on the second mortar layer, inserting both ends of the first side wing plate into the prefabricated grooves of the first end plate and the second end plate; completing the preparation of the side plate of the first permanent beam formwork .

Exemplarily, the specific steps of preparing the second permanent beam formwork side plate in S4 are:

S41, rotating the beam body formwork counterclockwise by 180°, so that the side plate of the second beam body formwork is parallel to the base bottom plate, and the beam body formwork is fixedly connected to the variable-angle pedestal;

S42, using the side plate of the second beam body formwork in S41 as the bottom plate of the beam body formwork at this time, lift off the fiber woven mesh fixed on the side plate of the second beam body formwork, and repeat step S21;

S43, spread the fiber woven mesh in S41 on the first mortar layer in S41, spread another layer of mortar on the fiber woven mesh, spread evenly and compact it to become the second mortar layer;

S44, placing the second side wing plate on the second mortar layer, inserting both ends of the second side wing plate into the prefabricated grooves of the first end plate and the second end plate; the preparation of the second permanent beam formwork side plate is completed .

It is worth noting that after the preparation of the second permanent beam formwork side plate in S4, the beam body formwork is rotated 90° clockwise, and the beam body formwork is fixedly connected to the variable-angle pedestal 1. After 45-55h, for example, after 48h To remove the formwork, in order to avoid the impact on the permanent beam formwork during the formwork removal process, the sequence of formwork removal is: first remove the end plate, then remove the side wing plate, then remove the variable angle base, and finally remove the beam formwork.

Specifically, the specific steps of curing in S5 are as follows: every 7-10 hours, for example, 8 hours, the permanent beam formwork is subjected to watering maintenance for a total of 28 days of maintenance.

The permanent beam formwork prepared by the above preparation method has the advantage of free formwork removal and low cost, and can be used for the pouring of beams in a concrete component prefabrication plant, greatly saving the consumption of traditional formwork. In addition, the bearing capacity of the permanent beam formwork provided by the present application can be increased by more than 20%, and the beam body has good anti-cracking performance, and has a good application prospect.

Compared with the prior art, the method for preparing the permanent beam formwork provided by the present invention adds the PVA chopped fibers into the mixed slurry, and can effectively improve the bearing capacity of the permanent beam formwork by precisely controlling the mass ratio of the PVA chopped fibers. and crack resistance; the slurry provided by the present invention has poor fluidity and is not suitable for traditional pouring methods. In the preparation method provided by the present invention, the U-shaped fiber woven mesh is an integral structure, and the U-shaped fiber woven mesh connects the side plates of the permanent beam formwork with the permanent beam formwork The bottom plate forms a whole and has good integrity. Compared with only laying flat beam formwork at the bottom, it is stronger at the interface, which can improve the overall consistency of the permanent beam formwork and effectively improve the strength of the permanent beam formwork.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Substitutions should be covered within the protection scope of the present invention.

Claims (9)

1. A preparation method of a permanent beam template is characterized in that a permanent beam template preparation mold is adopted, and the preparation method comprises the following steps:

s1, preparing mortar;

s2, preparing a permanent beam template bottom plate;

s3, preparing a first permanent beam formwork side plate;

s4, preparing a second permanent beam formwork side plate;

s5, maintaining the permanent beam template to complete the preparation of the permanent beam template;

the specific steps for preparing the permanent beam template bottom plate in the S2 are as follows:

s21, paving mortar on the bottom plate of the beam body formwork, and uniformly plastering and compacting to form a first mortar layer;

s22, dipping the fiber woven mesh into glue, after the glue is solidified, folding the glue into a U-shaped shape matched with the beam body template, correspondingly paving the bottom edge of the U-shaped shape of the fiber woven mesh on the first mortar layer, straightening the fiber woven mesh along the length direction of the permanent beam template, and respectively fixing two side edges of the U-shaped shape on the first beam body template side plate and the second beam body template side plate;

s23, paving a layer of mortar on the fiber woven net at the bottom edge of the U shape in the S22, and uniformly plastering and compacting to form a second mortar layer;

s24, inserting the second end plate into the second vertical groove and the fourth vertical groove, placing the inner bottom plate on the second mortar layer, clamping one end of the inner bottom plate into the transverse groove of the second end plate, and then inserting the first end plate into the first vertical groove and the third vertical groove to finish the preparation of the permanent beam formwork bottom plate.

2. The method for manufacturing according to claim 1, wherein the permanent beam formwork manufacturing mold comprises a variable angle pedestal (1) and a beam body formwork (2); the variable-angle pedestal (1) comprises a variable-angle base (11), variable-angle splicing plates (12) and a beam body template fixing groove (13), the variable-angle base (11) comprises a base panel and a base bottom plate, and the variable-angle splicing plates (12) are detachably connected with the base panel; the beam body template (2) comprises a beam body template bottom plate (21), a first beam body template side plate (22) and a second beam body template side plate (23); the first beam body formwork side plate (22) is provided with a first baffle for preventing mortar from flowing out, and the second beam body formwork side plate (23) is provided with a second baffle for preventing mortar from flowing out; the beam body template (2) is detachably connected with the variable-angle pedestal (1).

3. The method of manufacturing according to claim 2, wherein the base panel is removably connected to the variable angle splice plate (12) by bolts.

4. The manufacturing method according to claim 3, wherein a first vertical groove is formed at one end of the first beam body formwork side plate (22) close to the variable-angle base, and a second vertical groove is formed at one end far away from the variable-angle base; one end of the second beam body template side plate (23) close to the variable-angle base is provided with a third vertical groove, one end of the second beam body template side plate far away from the variable-angle base is provided with a fourth vertical groove, the first vertical groove and the third vertical groove are used for inserting a first end plate (31), and the second vertical groove and the fourth vertical groove are used for inserting a second end plate (32).

5. The manufacturing method according to any one of claims 2 to 4, wherein the variable angle pedestal (1) and the beam body template (2) are made of aluminum plates.

6. The method according to claim 1, wherein in S22,

the width W of the woven fibre web satisfies the following formula: w is 2h₁+w₁-2d₁；

The length L of the fiber woven mesh is equal to the length L of the permanent beam template bottom plate₁；

U-shaped side wall height H of fiber woven net_uThe following formula is satisfied: h_u＝h₁-0.5d₁；

U-shaped bottom edge width W of fiber woven net_uThe following formula is satisfied: w_u＝w₁+d₁；

In the formula, h₁Is the height of the permanent beam form side plate, w₁Width of the permanent beam form floor, d₁Is the thickness of the permanent beam template base plate.

7. The method for preparing the first permanent beam formwork side plate according to the claim 1, wherein the specific steps for preparing the first permanent beam formwork side plate in the step S3 are as follows:

s31, rotating the beam body template by 90 degrees clockwise to enable the side plate of the first beam body template to be parallel to the base bottom plate, and fixedly connecting the beam body template with the variable-angle pedestal;

s32, taking the first beam body template side plate as the beam body template bottom plate at the moment, opening the fiber woven net fixed on the first beam body template side plate, and repeating the step S21;

s33, laying the fiber woven net in the S32 on the first mortar layer in the S32, laying a layer of mortar on the fiber woven net, and uniformly plastering and compacting to form a second mortar layer;

s34, placing the first side wing plate on the second mortar layer, and inserting the two ends of the first side wing plate into the prefabricated grooves of the first end plate and the second end plate; and finishing the preparation of the first permanent beam formwork side plate.

8. The method for preparing the permanent beam formwork side plate according to the claim 7, wherein the specific steps for preparing the second permanent beam formwork side plate in the step S4 are as follows:

s41, rotating the beam body template 180 degrees along the anticlockwise direction, enabling the side plate of the second beam body template to be parallel to the base bottom plate, and fixedly connecting the beam body template with the variable-angle pedestal;

s42, taking the second beam body template side plate in the S41 as the beam body template bottom plate at the moment, opening the fiber woven net fixed on the second beam body template side plate, and repeating the step S21;

s43, laying the fiber woven net in the S41 on the first mortar layer in the S41, laying a layer of mortar on the fiber woven net, and uniformly plastering and compacting to form a second mortar layer;

s44, placing the second side wing plate on the second mortar layer, and inserting the two ends of the second side wing plate into the prefabricated grooves of the first end plate and the second end plate; and finishing the preparation of the second permanent beam formwork side plate.

9. The preparation method according to any one of claims 1 to 4 or 6 to 8, wherein the mortar preparation step in S1 is specifically as follows:

s11, adding coarse sand, fine sand, cement, fly ash and silica fume into a stirrer, stirring uniformly, gradually adding water, and finally slowly adding a water reducing agent to obtain uniformly stirred mixed slurry;

and S12, adding the PVA chopped fibers into the mixed slurry, uniformly dispersing the PVA chopped fibers into the mixed slurry, and stirring for 5-15min to obtain the PVA fiber mortar.

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