阅读说明：本技术 一种用于放置预埋钢筋的模板及其施工方法 (Template for placing embedded steel bars and construction method thereof ) 是由 杨建冲 李标 吴利 冯国耀 谢雄 李正威 陈祖扬 张磊 彭上志 欧毓浩 于 2020-07-13 设计创作，主要内容包括：本发明提供了一种用于放置预埋钢筋的模板及其施工方法,属于建筑施工设备及方法技术领域。本模板包括板体,板体上设置有若干条形槽。本模板的施工方法包括如下步骤：A、安装具有条形槽的模板；B、加工预埋钢筋；C、将钢筋的预埋段插入条形槽内,钢筋的伸出段位于条形槽的外部,之后固定预埋钢筋；D、浇筑混凝土,使预埋钢筋固定在混凝土中；E、拆除具有条形槽的模板；F、在混凝土上凿出预埋钢筋的预埋段,之后将预埋钢筋的预埋段调直。本安装方法无需在模板上开孔,就能够实现预埋钢筋的安装,不会造成漏浆、麻面等混凝土缺陷,且能够保证拆模后的混凝土质量良好。(The invention provides a template for placing embedded steel bars and a construction method thereof, belonging to the technical field of building construction equipment and methods. The template comprises a plate body, wherein a plurality of strip-shaped grooves are formed in the plate body. The construction method of the template comprises the following steps: A. installing a template with a strip-shaped groove; B. processing the embedded steel bars; C. inserting the embedded section of the steel bar into the strip-shaped groove, positioning the extending section of the steel bar outside the strip-shaped groove, and fixing the embedded steel bar; D. pouring concrete to fix the embedded steel bars in the concrete; E. removing the template with the strip-shaped groove; F. chiseling the embedded sections of the embedded steel bars on the concrete, and then straightening the embedded sections of the embedded steel bars. According to the installation method, the embedded steel bars can be installed without opening holes in the formwork, concrete defects such as slurry leakage and pitted surface are avoided, and good quality of the concrete after formwork removal can be guaranteed.)

1. The utility model provides a template for placing embedded steel bar, template (1) is including plate body (2), its characterized in that, be provided with a plurality of bar grooves (3) that are used for holding embedded steel bar (5) on plate body (2).

2. The template for placing embedded steel bars as claimed in claim 1, wherein the strip-shaped groove (3) comprises two obliquely arranged inner side walls (4), and each inner side wall (4) is gradually close to the inner side wall from outside to inside.

3. The template for placing embedded steel bars as claimed in claim 1, wherein the outer edge of each inner side wall (4) is located on the surface of the plate body (2), the inner edges of the inner side walls (4) are intersected and form a straight line.

4. The template for placing embedded steel bars as claimed in claim 3, wherein the template (1) is square, and the strip-shaped grooves (3) are parallel and extend along the length direction of the template (1).

5. A method of constructing a formwork as claimed in claim 3 or 4, the method comprising the steps of:

A. installing a template (1) with a strip-shaped groove (3);

B. processing embedded steel bars (5), determining the exposed length of the steel bars and the length of the embedded steel bars embedded into concrete according to needs, and bending the steel bars into two sections, wherein the two sections of the steel bars comprise an extension section (6) and an embedded section (7);

C. inserting the embedded sections (7) of the reinforcing steel bars into the strip-shaped grooves (3), enabling the embedded sections (7) to abut against the inner side walls (4) of the strip-shaped grooves (3), enabling the extending sections (6) of the reinforcing steel bars to be located outside the strip-shaped grooves (3), fixing the embedded reinforcing steel bars (5), enabling the embedded reinforcing steel bars (5) to be sequentially arranged in the length direction of the strip-shaped grooves (3), and enabling intervals to be formed between the embedded reinforcing steel bars (5);

D. pouring concrete to fix the embedded steel bars (5) in the concrete;

E. dismantling a template (1) with a strip-shaped groove (3);

F. chiseling the embedded sections (7) of the embedded steel bars (5) on the concrete, and then straightening the embedded sections (7) of the embedded steel bars (5).

6. The formwork construction method of claim 5, wherein in the step B, the reinforcing bars are bent into an L-shape.

7. A formwork construction method according to claim 5, wherein in the step C, a step of installing a fixing frame (8) in front of the formwork (1) with the strip-shaped groove (3) is further included, the fixing frame (8) comprises a plurality of cross beams (9) and a plurality of vertical beams (10), the cross beams (9) and the vertical beams (10) are fixed, intervals are formed between the cross beams (9) and between the vertical beams (10), and the extending section (6) of the reinforcing steel bar extends from the fixing frame (8) and is welded and fixed on the fixing frame (8).

8. A formwork construction method as claimed in claim 7, wherein the vertical beams (10) are parallel to the strip-shaped grooves (3), the transverse beams (9) are perpendicular to the strip-shaped grooves (3), the intervals between the transverse beams (9) are equal, the extending sections (6) of the reinforcing bars respectively extend from one interval between the transverse beams (9), and each extending section (6) is fixed on one transverse beam (9).

Technical Field

The invention belongs to the technical field of building construction equipment and methods, and relates to a template for placing embedded steel bars and a construction method thereof.

Background

The large-scale structures often need to be poured by stages by concrete, and the first-stage concrete and the second-stage concrete are better combined or installation of equipment embedded parts is facilitated by embedding reinforcing steel bars in the first-stage concrete during implementation, for example, floating bollard grooves of ship lock engineering are usually provided with the second-stage concrete due to complex structures.

The traditional method for pre-embedding the reinforcing steel bars is to make the end parts of the reinforcing steel bars penetrate out of the arranged holes by forming the holes in the template. However, this method has the following disadvantages:

firstly, the quality effect is poor, and the holes on the template are too many, which can cause the loss of concrete grout and cause local concrete defects; secondly, the construction potential safety hazard is large, the structure of the template can be influenced by too many holes on the template, the rigidity of the template is reduced, and in addition, the embedded steel bars can clamp the template, so that the template is difficult to remove, and a great potential safety hazard is formed; thirdly, construction cost is relatively high, because the size and the position of the embedded steel bars are changed, the template is probably to be transformed, investment of template cost is increased, construction progress lag can be caused due to difficulty in template dismantling, and corresponding cost can be increased due to phase change.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a template for placing embedded steel bars, and the technical problems to be solved by the invention are as follows: how to realize the installation of embedded steel bars under the condition of guaranteeing the concrete quality.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a template for placing embedded steel bar, the template includes the plate body, its characterized in that, be provided with a plurality of bar grooves that are used for holding embedded steel bar on the plate body.

When the concrete reinforcing bar embedded type formwork is used, a formwork is installed firstly, the exposed length of the reinforcing bar and the length of the reinforcing bar embedded in concrete are determined according to needs, the reinforcing bar is bent into two sections, the two sections comprise an extending section and an embedded section, then the embedded section of the reinforcing bar is inserted into the strip-shaped groove, the embedded section is abutted against the inner side wall of the strip-shaped groove, the extending section of the reinforcing bar is located outside the strip-shaped groove, then the embedded reinforcing bar is fixed, then the concrete is poured, and the embedded reinforcing bar is fixed in the concrete;

in the pouring process, concrete flows into each strip-shaped groove, after pouring, the concrete flowing into each strip-shaped groove forms a protruding part connected with the formed concrete, after the template is disassembled, the protruding parts are chiseled off, the embedded sections of the reinforcing steel bars are exposed, at the moment, the embedded sections are in a bending state, then the embedded sections are straightened or corrected manually or in other modes, the embedded sections are straightened, even if the embedded sections are vertical to the surface of the concrete or basically vertical to the surface of the concrete, the installation of the embedded reinforcing steel bars is completed at the moment. Even this template does not have the trompil, also can realize the installation of embedded bar, because there is not the trompil on the template, so can not cause concrete defects such as hourglass thick liquid, pitted skin, and can guarantee that the concrete quality after the form removal is good, though chisel a little part of concrete, nevertheless this little part is the bulge, after chiseling the bulge, still can make the shape of this concrete and the general template pour do not have the difference.

In addition, the rigidity of the template can not be influenced by the opening, the construction safety is ensured to a certain extent, the template is convenient to disassemble and assemble, the construction time is saved, and the construction cost is also reduced.

In the above-mentioned template for placing embedded steel bar, the strip-shaped groove includes two inside walls that slope and set up, and each inside wall is close to from outside-in gradually.

In the above-mentioned template for placing embedded steel bars, the outer edge of each inner side wall is located on the surface of the plate body, the inner edges of the inner side walls are intersected, and the inner edges form a straight line.

In this structure, the bar groove is a V-arrangement groove, and embedded steel bar places behind the V-arrangement inslot, can lean on with two inside walls offsets of V-arrangement groove, and the both sides wall plays the effect of location, and it is more convenient accurate to install.

In the above-mentioned template for placing embedded steel bar, the template is square, and each bar groove parallels and extends along the length direction of template.

Another object of the present invention is to provide a construction method of the formwork, which includes the steps of:

A. installing a template with a strip-shaped groove;

B. processing embedded steel bars, determining the exposed length of the steel bars and the length of the embedded steel bars embedded into concrete as required, and bending the steel bars into two sections, wherein the two sections of the steel bars comprise an extending section and an embedded section;

C. inserting the embedded sections of the steel bars into the strip-shaped grooves to enable the embedded sections to be abutted against the inner side walls of the strip-shaped grooves, enabling the extending sections of the steel bars to be located outside the strip-shaped grooves, then fixing the embedded steel bars, enabling the embedded steel bars to be sequentially arranged in the length direction of the strip-shaped grooves, and enabling intervals to be reserved among the embedded steel bars;

D. pouring concrete to fix the embedded steel bars in the concrete;

E. removing the template with the strip-shaped groove;

F. chiseling the embedded sections of the embedded steel bars on the concrete, and then straightening the embedded sections of the embedded steel bars.

In the pouring process, concrete flows into each strip-shaped groove, after pouring, the concrete flowing into each strip-shaped groove forms a protruding part connected with the formed concrete, after the template is disassembled, the protruding parts are chiseled off, the embedded sections of the steel bars are exposed, at the moment, the embedded sections are in a bending state, then the embedded sections are straightened or corrected manually or in other modes, the embedded sections are straightened, even if the embedded sections are vertical or basically vertical to the outer surface of the concrete, the installation of the embedded steel bars is completed at the moment. The installation method can realize the installation of the embedded steel bars without perforating the template, and concrete defects such as slurry leakage, pitted surface and the like can not be caused because the template is not perforated, and the good quality of the concrete after the template is disassembled can be ensured.

In the above construction method of a formwork, in step B, the reinforcing bars are bent into an L shape.

In the above construction method for the formwork, in the step C, a step of installing a fixing frame in front of the formwork with the strip-shaped groove is further included, the fixing frame includes a plurality of cross beams and a plurality of vertical beams, the cross beams and the vertical beams are fixed to each other, intervals are provided between the cross beams and between the vertical beams, and the extending sections of the reinforcing steel bars extend from the fixing frame and are welded and fixed on the fixing frame.

The crossbeam of mount and erect the roof beam and be the metalwork, insert the pre-buried section of reinforcing bar and after the location, weld the section of stretching out of pre-buried reinforcing bar on the mount, realization that can be fine is fixed pre-buried reinforcing bar, the convenience of fine improvement operation.

In the above construction method of a form, the vertical beams are parallel to the strip-shaped grooves, the cross beams are perpendicular to the strip-shaped grooves, the intervals between the cross beams are equal, the extending sections of the reinforcing steel bars extend from one interval between the cross beams, and each extending section is fixed on one cross beam.

At the in-process of installing the embedded steel bar in the template, the crossbeam plays fine assistance-localization real-time to the embedded steel bar, as long as will stretch out the section promptly and lean on with the crossbeam counterbalance, just can confirm the position of placing of embedded section basically, support after two inside walls and the embedded section of V-arrangement groove support, actual conditions finely tunes again, just can make things convenient for the accurate position of placing of confirming the embedded steel bar, interval between the embedded steel bar after the installation is also basically equal.

Compared with the prior art, the invention has the following advantages:

1. according to the installation method, the embedded steel bars can be installed without opening holes in the formwork, concrete defects such as slurry leakage and pitted surface are avoided, and good quality of the concrete after formwork removal can be guaranteed.

2. In the installation method, the installation of the embedded steel bars is simple and accurate in positioning, and the construction efficiency is greatly improved.

3. The rigidity of the template can not be influenced by the opening, the construction safety is ensured to a certain extent, the template is convenient to disassemble and assemble, the construction time is saved, and the construction cost is also reduced.

Drawings

FIG. 1 is a schematic diagram of the construction of a template;

FIG. 2 is a schematic view of pre-embedded steel bars placed on a formwork;

FIG. 3 is a schematic illustration of an embedded section of embedded reinforcement poured over concrete;

FIG. 4 is a schematic view of the pre-buried section of pre-buried reinforcing bars after straightening;

fig. 5 is a schematic structural view of the fixing frame.

In the figure, 1 is a template; 2, a plate body; 3, a strip-shaped groove; 4 inner side walls; 5, embedding reinforcing steel bars in advance; 6, extending out of the section; 7, pre-embedding a section; 8, fixing a frame; 9, a cross beam; 10 vertical beams; 11 concrete; 12 concrete outer surface.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the formwork 1 includes a plate body 2, and a plurality of strip-shaped grooves 3 for accommodating embedded steel bars 5 are arranged on the plate body 2.

As shown in fig. 2-4, during use, the formwork 1 is installed, the exposed length of the steel bar and the length of the steel bar embedded in the concrete 11 are determined as required, the steel bar is bent into two sections, the two sections include an extending section 6 and an embedded section 7, then the embedded section 7 of the steel bar is inserted into the strip-shaped groove 3, the embedded section 7 abuts against the inner side wall 4 of the strip-shaped groove 3, the extending section 6 of the steel bar is located outside the strip-shaped groove 3, then the embedded steel bar 5 is fixed, and then the concrete is poured, so that the embedded steel bar 5 is fixed in the concrete;

in the pouring process, concrete flows into each strip-shaped groove 3, after pouring, the concrete flowing into each strip-shaped groove 3 forms a protruding part connected with the formed concrete, after the template 1 is disassembled, the protruding parts are chiseled off, the embedded section 7 of the steel bar is exposed, at the moment, the embedded section 7 is in a bending state, then the embedded section 7 is straightened or corrected through manual straightening or other modes, even if the embedded section 7 is vertical to the surface of the concrete 11 or basically vertical to the surface of the concrete, the installation of the embedded steel bar 5 is completed at the moment.

In the embodiment shown in fig. 1, the strip-shaped groove 3 includes two inner side walls 4 disposed obliquely, and each inner side wall 4 is gradually close to each other from outside to inside.

As shown in fig. 1, in the present embodiment, the outer edge of each inner side wall 4 is located on the surface of the plate body 2, and the inner edges of the inner side walls 4 intersect to form a straight line.

In this structure, bar groove 3 is a V-arrangement groove, and embedded bar 5 places behind the V-arrangement inslot, can lean on with two inside wall 4 offsets of V-arrangement groove, and the both sides wall plays the effect of location, and the installation is convenient accurate more.

As shown in fig. 1, in the present embodiment, the form 1 is square, and the strip-shaped grooves 3 are parallel and extend along the length direction of the form 1.

The construction method of the template comprises the following steps:

A. installing a template 1 with a strip-shaped groove 3;

B. processing an embedded steel bar 5, determining the exposed length of the steel bar and the length of the embedded steel bar embedded into the concrete 11 as required, and bending the steel bar into two sections, wherein the two sections of the steel bar comprise an extension section 6 and an embedded section 7;

C. inserting the embedded sections 7 of the reinforcing steel bars into the strip-shaped grooves 3 to enable the embedded sections 7 to be abutted against the inner side walls 4 of the strip-shaped grooves 3, enabling the extending sections 6 of the reinforcing steel bars to be located outside the strip-shaped grooves 3, then fixing the embedded reinforcing steel bars 5 to enable the embedded reinforcing steel bars 5 to be sequentially arranged in the length direction of the strip-shaped grooves 3, and enabling intervals to be formed among the embedded reinforcing steel bars 5;

D. pouring concrete to fix the embedded steel bars 5 in the concrete 11;

E. dismantling the formwork 1 with the strip-shaped grooves 3;

F. and chiseling the embedded sections 7 of the embedded steel bars 5 on the concrete 11, and then straightening the embedded sections 7 of the embedded steel bars 5.

In the pouring process, concrete flows into each strip-shaped groove 3, after pouring, the concrete flowing into each strip-shaped groove 3 forms a protruding part connected with the formed concrete 11, after the template 1 is disassembled, the protruding parts are chiseled off, the embedded section 7 of the steel bar is exposed, at the moment, the embedded section 7 is in a bending state, then the embedded section 7 is straightened or corrected through manual straightening or other modes, even if the embedded section 7 is vertical or basically vertical to the outer surface 12 of the concrete, the installation of the embedded steel bar 5 is completed at the moment. According to the installation method, the embedded steel bars 5 can be installed without forming holes in the formwork 1, the defects of concrete 11 such as slurry leakage and pitted surface cannot be caused due to the fact that the holes are not formed in the formwork 1, the quality of the concrete 11 after formwork removal can be guaranteed to be good, although a small part of the concrete is chiseled, the small part is a protruding portion, and after the protruding portion is chiseled, the shape of the concrete can be made to be not different from that of the concrete poured from the common formwork 1.

As an example, in step B, the reinforcing bars are bent into an L-shape.

As an embodiment, in step C, a step of installing the fixing frame 8 in front of the formwork 1 having the strip-shaped groove 3 is further included.

As shown in fig. 5, the fixing frame 8 includes a plurality of cross beams 9 and a plurality of vertical beams 10, the cross beams 9 and the vertical beams 10 are fixed to each other, a space is provided between the cross beams 9 and between the vertical beams 10, and the extending section 6 of the reinforcing steel bar extends from the fixing frame 8 and is welded and fixed to the fixing frame 8.

Crossbeam 9 and the perpendicular roof beam 10 of mount 8 are the metalwork, insert the pre-buried section 7 of reinforcing bar in the bar groove 3 and after the location, with the section 6 welding of stretching out of pre-buried reinforcing bar 5 on mount 8, realization that can be fine is fixed the convenience of fine improvement operation to pre-buried reinforcing bar 5.

As shown in fig. 5, in this embodiment, the vertical beams 10 are parallel to the strip-shaped grooves 3, the horizontal beams 9 are perpendicular to the strip-shaped grooves 3, the intervals between the horizontal beams 9 are equal, the extending sections 6 of the reinforcing bars respectively extend from one interval between the horizontal beams 9, and each extending section 6 is fixed on one horizontal beam 9.

At the in-process of installing embedded steel bar 5 in template 1, crossbeam 9 plays fine assistance-localization real-time to embedded steel bar 5, as long as stretch out section 6 and crossbeam 9 to support and lean on promptly, just can confirm the position of placing of embedded section 7 basically, after two inside walls 4 and the embedded section 7 of V-arrangement groove supported and lean on, actual conditions finely tuned again more, just can make things convenient for the accurate position of placing of confirming embedded steel bar 5, interval between the embedded steel bar 5 after the installation also is basically equal.

Of course, the application object of the template is not limited to the steel bar, and other insertion bars can be used.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.