阅读说明：本技术 一种后置钢结构连续梁的加固混凝土梁板结构 (Reinforced concrete beam plate structure of rear steel structure continuous beam ) 是由 杨孝 王超 张艳红 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种后置钢结构连续梁的加固混凝土梁板结构,其包括若干段首尾续接的加固梁,该加固梁位于原楼板低下并且其端部分别固定在相邻原梁的侧面,相邻加固梁之间的首尾通过续接件实现续接固定,该续接件跨越在原梁两侧相邻的原楼板顶上,并且该续接件通过在原楼板开设的通孔与加固梁构成续接固定。本发明在钢筋混凝土框架结构中能够减轻自重和提高原梁和原楼板的抗承载能力。(The invention discloses a reinforced concrete beam plate structure of a rear steel structure continuous beam, which comprises a plurality of sections of reinforcing beams which are connected end to end, wherein the reinforcing beams are positioned at the lower part of an original floor and the end parts of the reinforcing beams are respectively fixed on the side surfaces of adjacent original beams, the end to end between the adjacent reinforcing beams are connected and fixed through a connecting piece, the connecting piece spans the tops of the adjacent original floors on the two sides of the original beams, and the connecting piece and the reinforcing beams form connecting and fixing through holes arranged on the original floors. The invention can reduce the self weight and improve the bearing capacity of the original beam and the original floor in the reinforced concrete frame structure.)

1. The utility model provides a reinforced concrete beam plate structure of rearmounted steel construction continuous beam which characterized in that: the reinforced beam is positioned at the lower part of an original floor slab, the end parts of the reinforced beam are respectively fixed on the side surfaces of adjacent original beams, the head and the tail between the adjacent reinforced beams are fixedly connected through a connecting piece, the connecting piece spans the tops of the adjacent original floor slabs on the two sides of the original beams, and the connecting piece is fixedly connected with the reinforced beams through holes formed in the original floor slabs.

2. The reinforced concrete beam plate structure of the rear steel-structure continuous beam as claimed in claim 1, wherein: two side faces of the original beam are respectively provided with a reinforcing plate, the two reinforcing plates are fixed through screws penetrating through the original beam and the reinforcing plates, and gaps between the original beam and the reinforcing plates are filled in a pressure glue injection mode.

3. The reinforced concrete beam plate structure of the rear steel-structure continuous beam as claimed in claim 2, wherein: the reinforcing plate extends outwards to form a connecting plate, and the connecting plate and the reinforcing beam are fixed through screws and welding.

4. The reinforced concrete beam plate structure of the rear steel-structure continuous beam as claimed in claim 1, wherein: the continuous joint part is provided with a pouring hole, and pouring materials enter a space enclosed by the continuous joint part, the through hole and the reinforcing beam through the pouring hole so as to be buried and reinforced.

5. The reinforced concrete beam plate structure of the rear steel-structure continuous beam as claimed in claim 4, wherein: the caliber of the lower hole of the through hole is equal to or less than the width of the contact surface of the reinforcing beam and the through hole.

6. The reinforced concrete beam plate structure of the rear steel-structure continuous beam as claimed in claim 1, wherein: the continuous connecting piece comprises a cover plate and a connecting side plate, and the cover plate positioned above the through hole is fixed with the reinforcing beam positioned below the through hole through the connecting side plate.

7. The reinforced concrete beam plate structure of the rear steel-structure continuous beam as claimed in claim 6, wherein: the top extending part of the connecting side plate is hooked on the top of the original floor slab.

8. The reinforced concrete beam plate structure of the rear steel-structure continuous beam as claimed in claim 1, wherein: the reinforcing beam and the splicing piece are made of steel, and the splicing fixing mode is welding.

9. The reinforced concrete beam plate structure of the rear steel-structure continuous beam as claimed in claim 1, wherein: the reinforcing beam comprises a vertical plate, and an upper flange is arranged on the upper edge of the vertical plate along the long axis direction and is used for supporting the original floor slab; and a lower flange is arranged below the upper edge of the vertical plate and along the long axis direction and is used for reinforcing the connection with the original beam.

Technical Field

The invention relates to the technical field of beam reinforcement, in particular to a reinforced concrete beam plate structure of a rear steel structure continuous beam.

Background

According to the policy requirements of 'four sections-environmental protection' advocated by the state and the improvement of people in the society on living and public environments, the improvement and reinforcement of the existing building is a necessary trend of social development, the existing reinforced concrete frame structure is improved more in recent years, and the reason for the improvement is mostly the upgrading and the reconstruction of the building function. The modification form of the use function is to add new floor increasing equipment, add large swimming pool on the floor, cinema entertainment places and the like. The transformation of the structure has great influence on the bearing capacity and the earthquake resistance of the original structure. Due to the increase of load and the change of the original structure bearing system, the beam, the plate and the column and the foundation within the influence range of the original structure can be reinforced, and the building structure can be safely used. The reinforcing method and the technical application thereof have great influence on the original structure reinforcement in the aspects of construction, environmental protection, structural earthquake resistance, reduction of the self weight of the structure, and the like, and are more suitable for modern fabricated buildings. Especially, the beam-slab member reinforcing beams are relatively more, the traditional reinforcing mode is a reinforcing mode of a composite floor slab, a composite beam, bonded steel, bonded carbon cloth and the like, but the bonded steel and the bonded carbon cloth are difficult to achieve under the condition of large floor load increase amplitude. By adopting the superposed beams, the superposed plates can achieve the purpose of reinforcing the newly added load structure of the floor. But the floor superimposed sheet can increase the dead weight of floor and the increase is great, has reduced original structure shock resistance, and foundation effort increases to some extent simultaneously, can arouse the reinforced possibility of foundation.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a reinforced concrete beam plate structure of a rear steel structure continuous beam aiming at the defects of the prior art, and the reinforced concrete beam plate structure can reduce the self weight of the structure and improve the anti-seismic performance in the reinforcement of a reinforced concrete frame structure.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a reinforced concrete beam plate structure of rearmounted steel construction continuous beam, its includes the reinforcement beam of a plurality of sections end to end splicing, this reinforcement beam is located former floor low and its tip is fixed respectively in the side of adjacent former roof beam, the end to end between the adjacent reinforcement beam realizes splicing fixedly through splicing, this splicing stridees across former floor top adjacent in former roof beam both sides to this splicing constitutes splicing fixedly through the through-hole that offers at former floor and reinforcement beam.

In the technical scheme, two reinforcing plates are respectively arranged on two side surfaces of the original beam, the two reinforcing plates are fixed through screws penetrating through the original beam and the reinforcing plates, and gaps between the original beam and the reinforcing plates are filled in a pressure glue injection mode.

In the technical scheme, the reinforcing plate extends outwards to form a connecting plate, and the connecting plate and the reinforcing beam are fixed through screws and welding.

In the technical scheme, the splicing piece is provided with a filling hole, and filling materials enter a space enclosed by the splicing piece, the through hole and the reinforcing beam through the filling hole so as to be buried and reinforced.

In the above technical scheme, the caliber of the lower hole of the through hole is equal to or less than the width of the contact surface between the reinforcing beam and the through hole.

In the above technical scheme, the continuous joint member includes a cover plate and a connecting side plate, and the cover plate located above the through hole is fixed with the reinforcing beam located below the through hole through the connecting side plate.

In the technical scheme, the top extending part of the connecting side plate is hooked on the top of the original floor slab.

In the above technical scheme, the reinforcing beam and the splicing piece are made of steel, and the splicing fixing mode is welding.

In the technical scheme, the reinforcing beam comprises a vertical plate, and an upper flange is arranged on the upper edge of the vertical plate and along the long axis direction and is used for supporting the original floor slab; and a lower flange is arranged below the upper edge of the vertical plate and along the long axis direction and is used for reinforcing the connection with the original beam.

The invention has the beneficial effects that: the steel structure continuous beam can overcome the defects of the traditional reinforcing method, the dead weight of the steel structure continuous beam is reduced by about 80 percent compared with the traditional method, the dry operation construction is short, the construction period is short, and the environmental pollution is less. These advantages are not available with conventional reinforcement methods. The newly-added steel structure beam (i.e. the reinforcing beam) under the original floor slab reduces the span of the original floor slab and simultaneously improves the bearing capacity and the rigidity and deformation capacity of the original floor slab, and simultaneously, the original reinforcing beam under the floor slab changes the reduction of the mid-span bending moment of the internal force pattern of the original reinforced concrete beam (the original beam), thereby improving the bearing capacity resistance of the original beam. Due to the installation of the connection node of the steel structure and the original beam, the reinforcing beam is calculated according to the simply supported beam model, under the condition that the floor load is not changed, the simply supported beam model and the continuous beam model of the reinforcing beam are uniform in structure, the height of the section of the reinforcing beam can be reduced by a certain range (about 30%), materials are saved, and meanwhile the indoor clearance height of the building is improved.

Drawings

Fig. 1 is a schematic view showing the arrangement of reinforcing beams and connectors according to the present invention in an original beam and an original floor slab.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic sectional structure view of a-a in fig. 2.

Fig. 4 is a schematic sectional structure view of B-B in fig. 2.

In the figure, 1, an original beam; 2. original floor slab; 3. a reinforcing plate; 4. a connecting plate; 5. reinforcing the beam; 6. a cover plate; 7. connecting the side plates; 8. a screw; 21. a through hole; 31. reinforcing the pressure plate; 51. a vertical plate; 52. an upper flange; 53. a lower flange; 61. and (6) pouring a hole.

Detailed Description

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

As shown in fig. 1-4, a reinforced concrete beam slab structure of a rear continuous beam with a steel structure is mainly applied to a reinforced concrete frame structure, the reinforced concrete frame structure comprises an original beam 1 and an original floor 2, the invention is to reinforce the original beam 1 and the original floor 2, the main idea is to adopt a mode of continuously fixedly connecting the end to end of a steel beam to reinforce the whole original floor 2 and the original beam 1, and the mode has the advantages of not causing too much damage to the original beam 1 or the original floor 2, shortening the span of the original floor 2 and improving the bearing capacity and the rigidity and deformation capacity.

The reinforcing structure of the embodiment includes a steel structure welded and fixed at a factory and a steel structure welded and fixed at a field. The steel structure welded and fixed in a factory is provided with a reinforcing plate 3 and a connecting plate 4, the reinforcing plate 3 is provided with a hole in the factory, and the end part of the connecting plate 4 is welded and fixed on the reinforcing plate 3. The steel structure welded and fixed on site is a reinforcing beam 5, a cover plate 6 and a connecting side plate 7, the shapes or hole positions of the reinforcing beam 5, the cover plate 6 and the connecting side plate 7 are finished in a factory, the reinforcing plate 3 is fixed on the original beam 1, the reinforcing beam 5 and the connecting side plate 7 are welded and fixed on site and locked by a screw 8, the connecting side plate 7 is installed in place when the reinforcing beam 5 is fixed on the reinforcing plate 3, the connecting side plate 7 and the reinforcing beam 5 are welded and fixed, then the cover plate 6 is installed in place, the cover plate 6 and the connecting side plate 7 are welded and fixed, and the welding and fixing can be adjusted according to requirements on the welding and the welding on site or in the factory.

In this embodiment, the reinforcing beam 5 is made of steel, and includes a long shaft 51 extending from one original beam to another parallel original beam, and an upper flange 52 is disposed along the upper edge of the long shaft 51 and along the long shaft direction for supporting the original floor slab 2; a lower flange 53 is provided below the upper edge of the beam 51 in the longitudinal direction for reinforcing the connection with the original beam 1. In this embodiment, an H-beam is formed by a top flange 51 and upper and lower top and bottom flanges 52 and 53. Of course the number of lower flanges 53 may be increased as required to improve the connection to the original beam 1. The original beam 1 is provided with through holes penetrating through two sides, the two sides of the original beam 1 are respectively provided with the reinforcing plates 3, then the original beam 1 and the reinforcing plates 3 on the two sides are penetrated through by screws 8 and are screwed and fixed by nuts, the reinforcing pressure plate 31 is arranged at the through hole position on the reinforcing plate 3, and the through holes on the reinforcing pressure plate 31 and the through holes on the reinforcing plate 3 are superposed to realize the locking effect of the reinforcing screws 8 on the reinforcing plate 3. After the reinforcing plate 3 is fixed by the screw 8, the gap between the original beam 1 and the reinforcing plate 3 is filled by pressure glue injection.

The connecting plate 4 and the reinforcing plate 3 are vertically welded and fixed, the end part of the connecting plate 4 is welded and fixed at the factory, the connecting plate 4 is provided with a through hole, when the reinforcing beam 5 is installed, the through hole on the 51 of the reinforcing beam 5 corresponds to the through hole on the connecting plate 4, and then the screw 8 is inserted and screwed and fixed by a nut. After both ends of the reinforcing beam 5 are fixed on the connecting plate 4, the reinforcing beam is welded and fixed along the contact periphery of the connecting plate 4 and the reinforcing beam 5 in a welding mode. The fixing position is designed, the upper flange 52 of the reinforcing beam 5 is contacted with or very close to the original floor 2 after being welded and fixed, so as to be used for supporting. The length of the reinforcing beam 5 is also set to be slightly shorter than the distance between the adjacent original beams 1 so as to be interposed between the two original beams 1.

The positions, close to the original beam 1, of the original floor slabs 2 on the left side and the right side of the original beam 1 are positions of connection nodes of the original beam 1 and the original floor slabs 2, long rectangular through holes 21 are formed in the long axis direction of the reinforcing beam 5, grooves are formed in the long edges of the long rectangular through holes 21 along the long axis direction to form L-shaped grooves, the connecting side plates 7 are inserted into the long rectangular through holes 21 in an inverted L-shaped structure and are buckled on the L-shaped grooves, and the bottoms of the connecting side plates 7 are in contact with the upper flanges 52 of the reinforcing beam 5 and are fixed through welding. The cover plate 6 is arranged on the original beam 1 and spans two adjacent original floor slabs 2 and is positioned on the connecting side plate 7, the L-shaped groove also has the function of enabling the cover plate 6 to be flat with the top surfaces of the original beam 1 and the original floor slabs 2 after covering the connecting side plate 7, the cover plate 6 is fixedly welded with the top of the connecting side plate 7, the cover plate 6 is provided with a pouring hole 61, and pouring materials enter a space enclosed by the cover plate 6, the connecting side plate 7, the long rectangular through hole 21 and the upper flange 52 of the reinforcing beam 5 through the pouring hole 61 to be buried and reinforced. The grouting material may be a conventional grouting material or fine aggregate concrete, etc. The splice of the cover plate 6 and the connecting side plates 7 serves as a lap joint for the front and rear reinforcing beams 5 so that the individual reinforcing beams 5 of the plurality of sections are integrated and act together on the original beam 1 and the original floor 2.

All welding and fixing in the embodiment of the invention need to meet the condition of more than two levels of welding seams. The steel structure can play a good long-term reinforcing role as long as the steel structure is rust-proof and is subjected to corresponding rust-proof treatment.

Therefore, the application of the steel structure continuous beam in the reinforced concrete structure can reduce the dead weight of the structure, dry operation construction, reduce air pollution, improve the anti-seismic performance of the structure, and compared with the industrialized manufacture of the modern fabricated construction process, the on-site construction period is shorter, thereby providing a strong guarantee for the safety of the living environment.

The above examples are intended to illustrate rather than to limit the invention, and all equivalent changes and modifications made by the methods described in the claims of the present invention are intended to be included within the scope of the present invention.