阅读说明：本技术 一种型钢混凝土组合梁装配式自承重模架装置 (Assembly type self-bearing die carrier device for steel reinforced concrete composite beam ) 是由 贾子文 李存良 金鑫 刘小光 韩国定 薛振农 郭涛 于 2021-09-09 设计创作，主要内容包括：一种型钢混凝土组合梁装配式自承重模架装置,括内置型钢,内置型钢作为自承重直接持力载体,并依次通过U型螺栓和底模主楞、侧模主楞和对拉螺栓形成闭环的传力路径,用于承担施工阶段的竖向和侧向荷载；U型螺栓嵌套在内置型钢梁的上翼缘,并向下穿过模板与底模主楞连接,用于传递竖向荷载；所述底模主楞和侧模主楞位于同一平面且相互固定；对拉螺栓的一端与型钢的腹板连接,另一端穿过模板和侧模主楞连接,用于传递侧向荷载；模板紧贴型钢混凝土组合梁的底面和侧面布置；沿型钢混凝土组合梁跨度方向平行布置次楞,且与底模主楞和侧模主楞正交。本发明构造简单、设计合理、传力可靠、经济性好,构件易于加工、拼接方便,质量稳定。(A self-bearing formwork device assembled by a steel reinforced concrete composite beam comprises built-in section steel, wherein the built-in section steel is used as a self-bearing direct holding force carrier, forms a closed-loop force transmission path sequentially through a U-shaped bolt, a bottom die main edge, a side die main edge and a split bolt and is used for bearing vertical and lateral loads in a construction stage; the U-shaped bolt is nested on the upper flange of the built-in steel beam, downwards penetrates through the template to be connected with the main edge of the bottom die and is used for transmitting vertical load; the bottom die main edge and the side die main edge are positioned on the same plane and fixed with each other; one end of the split bolt is connected with a web plate of the section steel, and the other end of the split bolt penetrates through the template and is connected with the main edge of the side mold and is used for transmitting lateral loads; the bottom surface and the side surface of the template clinging to the steel reinforced concrete composite beam are arranged; the secondary ridges are arranged in parallel along the span direction of the steel reinforced concrete composite beam and are orthogonal to the bottom die main ridge and the side die main ridge. The invention has the advantages of simple structure, reasonable design, reliable force transmission, good economy, easy processing of components, convenient splicing and stable quality.)

1. The utility model provides a shaped steel concrete composite beam assembled self-supporting die carrier device which characterized in that: the self-bearing steel plate comprises built-in section steel (1), wherein the built-in section steel (1) is used as a self-bearing direct holding force carrier, forms a closed-loop force transmission path sequentially through a U-shaped bolt (2), a bottom die main edge (3), a side die main edge (4) and a split bolt (5) and is used for bearing vertical and lateral loads in a construction stage;

the U-shaped bolts (2) are nested at the upper flange of the built-in steel section beam (1), downwards penetrate through the template (7) and are connected with the bottom die main edge (3) and are used for transmitting vertical loads; the bottom die main edge (3) and the side die main edge (4) are positioned on the same plane and fixed with each other; one end of the split bolt (5) is connected with a web plate of the section steel (1), and the other end of the split bolt penetrates through the template (7) to be connected with the side mold main edge (4) and is used for transmitting lateral loads; the template (7) is arranged on the bottom surface and the side surface of the steel reinforced concrete composite beam tightly attached; secondary ridges (8) are arranged in parallel along the span direction of the steel reinforced concrete composite beam and are orthogonal to the bottom die main ridge (3) and the side die main ridge (4).

2. The fabricated self-bearing formwork device for the steel reinforced concrete composite beam according to claim 1, wherein: the built-in section steel (1) is full solid section steel.

3. The fabricated self-bearing formwork device for the steel reinforced concrete composite beam according to claim 1, wherein: the U-shaped bolt (2) adopts a rectangular right-angle structure;

the center distance of the U-shaped bolts (2) is the diameter of the U-shaped bolts (2) with the width of the upper flange of the built-in section steel (1) being +3 times, the length of the threaded sections of the U-shaped bolts (2) is larger than or equal to the height from the upper flange of the built-in section steel (1) to the bottom of the section steel concrete composite beam, the height of the secondary edge (8), the height of the bottom die main edge (3) being +100mm, and the length of the threaded threads of the U-shaped bolts (2) is larger than or equal to 150 mm.

4. The fabricated self-bearing formwork device for the steel reinforced concrete composite beam according to claim 1, wherein: the bottom die main edge (3) adopts a channel steel combined section, and the channel steel gap a is 2 times of the diameter of the U-shaped bolt (2); a pin connecting plate is welded at the end part of the channel steel, and the thickness of the plate is larger than or equal to the thickness of a web plate of the channel steel; the upper flange and the lower flange of the channel steel combined section are connected by batten plate welding seams, the batten plate width is 40mm, the batten plate length is the flange width of the channel steel combined section-20 mm, and the batten plate interval is less than or equal to 400 mm.

5. The fabricated self-bearing formwork device for the steel reinforced concrete composite beam according to claim 1, wherein: the side die main edge (4) adopts a channel steel combined section, and the channel steel gap b is 2 times of the diameter of the split bolt (5); the end part of the channel steel is butted with a pin connecting plate, and the thickness of the plate is larger than or equal to the thickness of a web plate of the channel steel; the upper flange and the lower flange of the channel steel combined section are connected by batten plate welding seams, the batten plate width is 40mm, the batten plate length is the flange width of the channel steel combined section-20 mm, and the batten plate interval is less than or equal to 400 mm.

6. The fabricated self-bearing formwork device for the steel reinforced concrete composite beam according to claim 1, wherein: the side die main edge (4) is connected with the bottom die main edge (3) through an end connecting plate by adopting a pin (6), the specification of the pin (6) is not less than M20, and the cable bolt is fixed.

7. The fabricated self-bearing formwork device for the steel reinforced concrete composite beam according to claim 1, wherein: the split bolt (5) is L-shaped; the projection length of the split bolt (5) is more than or equal to the beam width/2 + secondary ridge height + side formwork height + main corrugated height + bent straight section length +100mm of the steel reinforced concrete composite beam, and the thread length is more than or equal to 150 mm; wherein the length of the straight section of the 90-degree hook welded with the web plate of the section steel is more than or equal to 10 times of the diameter of the split bolt (5), and the size of the welding leg is more than or equal to 6 mm.

8. The fabricated self-bearing formwork device for the steel reinforced concrete composite beam according to claim 1, wherein: the template (7) adopts a wood template or a steel template.

9. The fabricated self-bearing formwork device for the steel reinforced concrete composite beam according to claim 1, wherein: the secondary edges (8) are made of square wood or section steel.

Technical Field

The invention belongs to the field of civil engineering, and particularly relates to a sectional steel concrete composite beam assembled self-bearing die carrier device.

Background

The steel reinforced concrete structure is a combined structure of steel section and steel bar arranged in concrete, and is widely applied to multi-story and high-rise buildings due to high bearing capacity, high rigidity and excellent earthquake resistance.

However, when the steel reinforced concrete beam is considered as a super-heavy structure in the construction stage, a large number of vertical rods need to be arranged at the bottom of the combined beam to meet the bearing capacity requirement. Especially for the template supporting structure mainly adopting the socket type disc mouth type steel pipe, the vertical and horizontal distances and the step distances of the vertical rods are all standard modulus, so that the bearing capacity is met, and the standard modulus is very difficult to guarantee. For this reason, the steel pipes of the disk mouth type and the fastener type are often used in a mixed manner, but the synergistic stress effect of the two is not ideal. Therefore, there is a need to improve the formwork support structure of the steel reinforced concrete composite beam to realize a formwork system with built-in steel self-bearing.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides the assembled self-bearing formwork device for the steel reinforced concrete composite beam, which sufficiently utilizes the advantages of high self-bearing capacity and high rigidity of the built-in section steel to bear the load in the construction stage.

In order to achieve the purpose, the invention has the following technical scheme:

the embodiment of the invention provides a self-bearing formwork device assembled by a steel reinforced concrete composite beam, which comprises built-in section steel, wherein the built-in section steel is used as a self-bearing direct holding force carrier, forms a closed-loop force transmission path sequentially through a U-shaped bolt, a bottom die main edge, a side die main edge and a split bolt and is used for bearing vertical and lateral loads in a construction stage; the U-shaped bolt is nested on the upper flange of the built-in steel beam, downwards penetrates through the template to be connected with the main edge of the bottom die and is used for transmitting vertical load; the bottom die main edge and the side die main edge are positioned on the same plane and fixed with each other; one end of the split bolt is connected with a web plate of the section steel, and the other end of the split bolt penetrates through the template and is connected with the main edge of the side mold and used for transmitting lateral loads; the bottom surface and the side surface of the template close to the steel reinforced concrete composite beam are arranged; the secondary ridges are arranged in parallel along the span direction of the steel reinforced concrete composite beam and are orthogonal to the bottom die main ridge and the side die main ridge.

As a preferable scheme, the built-in section steel adopts full-filling solid section steel.

As a preferable scheme, the U-shaped bolt adopts a rectangular right-angle structure; the center distance of the U-shaped bolts is the diameter of the U-shaped bolts with the width of the upper flange of the built-in section steel being +3 times, the length of the threaded sections of the U-shaped bolts is more than or equal to the height from the upper flange of the built-in section steel to the bottom of the section steel concrete combined beam, the height of the secondary ridges and the height of the main ridges of the bottom die being more than or equal to 100mm, and the length of the thread wires of the U-shaped bolts is more than or equal to 150 mm.

As a preferable scheme, the bottom die main edge adopts a channel steel combined section, and a channel steel gap a is 2 times of the diameter of a U-shaped bolt; a pin connecting plate is welded at the end part of the channel steel, and the thickness of the plate is larger than or equal to the thickness of a web plate of the channel steel; the upper flange and the lower flange of the channel steel combined section are connected by batten plate welding seams, the batten plate width is 40mm, the batten plate length is the flange width of the channel steel combined section-20 mm, and the batten plate interval is less than or equal to 400 mm.

As a preferable scheme, the main edge of the side mold adopts a channel steel combined section, and a channel steel gap b is 2 times of the diameter of a split bolt; the end part of the channel steel is butted with a pin connecting plate, and the thickness of the plate is larger than or equal to the thickness of a web plate of the channel steel; the upper flange and the lower flange of the channel steel combined section are connected by batten plate welding seams, the batten plate width is 40mm, the batten plate length is the flange width of the channel steel combined section-20 mm, and the batten plate interval is less than or equal to 400 mm.

Preferably, the side die main edge is connected with the bottom die main edge through an end connecting plate by using a pin, the specification of the pin is not less than M20, and the pin is fixed by a cable bolt.

As a preferable scheme, the shape of the split bolt is an L shape; the projection length of the split bolt is more than or equal to the beam width/2 + the secondary ridge height + the side formwork main corrugated height + the hook straight section length +100mm, and the screw thread length is more than or equal to 150 mm; wherein the length of the straight section of the 90-degree hook welded with the web plate of the section steel is more than or equal to 10 times of the diameter of the split bolt, and the size of the welding leg is more than or equal to 6 mm.

As a preferable scheme, the template is a wood template or a steel template.

As a preferable scheme, the secondary edge is made of square wood or section steel.

Compared with the prior art, the invention has the following beneficial effects: the built-in profile steel of the profile steel concrete composite beam is used as a holding force carrier of a self-bearing structure, and the main edge of the bottom die is hung through the U-shaped bolts to transfer vertical load in the construction stage. Meanwhile, the bottom die main edge is used as a supporting structure of the side die main edge, and the side die main edge is pulled and connected through the split bolt to bear the lateral load in the construction stage, so that a closed-loop self-bearing force transmission path is formed. The fabricated self-bearing die carrier device has the advantages of simple structure, reasonable design, reliable force transmission and good economical efficiency. The member is easy to process, standardized production, convenient to splice and stable in quality.

Drawings

FIG. 1 is a schematic view of the overall structure of the fabricated self-supporting formwork device for steel reinforced concrete composite beams according to the present invention;

FIG. 2 is a schematic diagram of a front view structure of a main edge of the side mold of the invention;

FIG. 3 is a schematic side view of the main edge of the side mold of the present invention;

FIG. 4 is a schematic cross-sectional structure diagram of a main edge of the side mold of the invention;

FIG. 5 is a schematic diagram of the overall assembly structure of the side-form main edge of the invention;

FIG. 6 is a schematic side view of a primary edge of a bottom mold according to the present invention;

FIG. 7 is a schematic front view of a bottom die main ridge according to the present invention;

FIG. 8 is a schematic cross-sectional view of a bottom die main ridge according to the present invention;

in the drawings: 1-building section steel; 2-U-shaped bolt; 3-bottom die main corrugation; 4-side mould main edge; 5-split bolts; 6-pin; 7-template; 8-concha.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the embodiment of the fabricated self-bearing formwork device for the steel reinforced concrete composite beam of the invention comprises a fabricated self-bearing device and a steel reinforced concrete composite beam, wherein built-in steel profiles 1 are used as direct holding force carriers of the self-bearing device and form a closed-loop force transmission path sequentially through U-shaped bolts 2, bottom die main ridges 3, side die main ridges 4 and split bolts 5 for bearing vertical and lateral loads in a construction stage; the U-shaped bolts 2 are embedded in the upper flange of the built-in steel section beam 1, and the lower penetrating template 7 is in bolt connection with the bottom die main ridge 3 to transmit vertical load; the bottom die main edge 3 and the side die main edge 4 are positioned on the same plane and are fixed by a pin 6 through a connecting plate; one end of a split bolt 5 is welded with a web plate of the section steel 1, and the other end of the split bolt penetrates through a template 7 and is in bolt connection with a main edge 4 of the side mold to transmit lateral load; the template 7 is tightly attached to the bottom surface and the side surface of the steel reinforced concrete composite beam; the secondary ridges 8 are arranged in parallel to the span direction of the steel reinforced concrete composite beam and are orthogonal to the bottom die main ridges 3 and the side die main ridges 4. In the figure, the assembled self-bearing formwork device for the steel reinforced concrete composite beam is shown, wherein the height of the steel reinforced concrete composite beam is H, and the width of the beam is B.

In the embodiment, the built-in section steel 1 of the assembled self-supporting device of the section steel concrete composite beam adopts full-filling solid web section steel.

In this embodiment, the U-shaped bolt 2 has a rectangular right-angle structure. The center distance of the U-shaped bolt 2 is the diameter of the U-shaped bolt 2 with the width of the upper flange of the built-in section steel 1 being +3 times, the length of the threaded section of the U-shaped bolt 2 is larger than or equal to the height from the upper flange of the built-in section steel 1 to the bottom of the section steel concrete combined beam, the height of the secondary edge 8 and the height of the bottom die main edge 3 being +100mm, and the length of the thread of the U-shaped bolt 2 is larger than or equal to 150 mm.

Referring to fig. 6 to 8, in the present embodiment, the bottom die main edge 3 adopts a channel steel combined section ] [, and a channel steel gap a is 2 times the diameter of the U-shaped bolt 2; a pin connecting plate is welded at the end part of the channel steel, and the thickness of the plate is larger than or equal to the thickness of a web plate of the channel steel; the upper flange and the lower flange of the channel steel combined section are connected by batten plate welding seams, the batten plate width is 40mm, the batten plate length is the flange width of the channel steel combined section-20 mm, and the batten plate interval is less than or equal to 400 mm.

Referring to fig. 2 to 4, in the embodiment, the main edge of the side mold adopts a channel steel combined section, and a channel steel gap b is 2 times of the diameter of the split bolt 5; the end part of the channel steel is butted with a pin connecting plate, and the thickness of the plate is larger than or equal to the thickness of a web plate of the channel steel; the upper flange and the lower flange of the channel steel combined section are connected by batten plate welding seams, the batten plate width is 40mm, the batten plate length is the flange width of the channel steel combined section-20 mm, and the batten plate interval is less than or equal to 400 mm.

Referring to fig. 5, in the embodiment, the side die main edge 4 is connected with the bottom die main edge 3 through the end connecting plate by using the pin 6, the size of the pin 6 is not less than M20, and the cable bolt is fixed.

In the present embodiment, the shape of the split bolt 5 is L-shaped; the projection length of the split bolt 5 is more than or equal to the beam width/2 + the secondary ridge height + the side formwork main height + the hook straight section length +100mm of the steel reinforced concrete composite beam, and the screw thread length is more than or equal to 150 mm; wherein the length of the straight section of the 90-degree hook welded with the web plate of the section steel is more than or equal to 10 times of the diameter of the split bolt 5, and the size of the welding leg is more than or equal to 6 mm.

In this embodiment, the formwork 7 is a wooden formwork or a steel formwork.

In this embodiment, the secondary ridges 8 are made of square wood or section steel.

The assembling process of the steel reinforced concrete composite beam assembling type self-bearing die carrier device is as follows:

in the actual processing and splicing process, firstly, the specifications and the arrangement intervals of a template 7, a secondary ridge 8, a bottom die main ridge 3, a side die main ridge 4, a U-shaped bolt 2 and a split bolt 5 are calculated according to the section size and the construction load of the steel reinforced concrete composite beam; secondly, determining a channel steel combined section gap a of the bottom die main edge 3 and a channel steel combined section gap b of the side die main edge 4 according to the diameter of the U-shaped bolt 2 and the diameter of the split bolt 5; and a pin connecting plate is welded at the end part of the channel steel, so that the factory assembly of the bottom die main edge 3 and the side die main edge 4 channel steel combined component is completed, and the combined component can be stored, transported and installed on site. During actual construction, firstly arranging a template 7, a secondary edge 8 and a bottom die main edge 3 of a combined beam bottom, and then installing a U-shaped bolt 2 on the upper flange of the section steel, so that the U-shaped bolt 2 penetrates through a gap of the combined section of the channel steel of the template 7 and the bottom die main edge 3 and is fastened, and the installation of a bottom die supporting structure is completed; and then installing a template 7, a secondary edge 8 and a side mould main edge 4 on the side surface, and connecting the side mould main edge 4 with the bottom mould main edge 3 by adopting a pin 6. Meanwhile, the split bolt 5 penetrates through a gap between the section of the channel steel combination of the template 7 and the main edge 4 of the side die and is fastened, and the installation of the side die supporting structure is completed. And finishing the installation and construction of the whole steel reinforced concrete composite beam assembled self-bearing formwork device.

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and it should be understood by those skilled in the art that the technical solution can be modified and replaced by a plurality of simple modifications and replacements without departing from the spirit and principle of the present invention, and the modifications and replacements also fall into the protection scope covered by the claims.