Frame beam reinforcing structure

Abstract

The utility model discloses a frame beam reinforcing structure which comprises a T-shaped beam body, the beam body comprises a top plate and a web plate, a hogging moment stress strip is pasted on the top plate in the length direction, hogging moment pressing strips are vertically pasted on the hogging moment stress strip at intervals, and a bottom pressing strip is pasted at the bottom of the web plate in the length direction. U-shaped hoops are arranged on the web in the length direction at intervals, the bottoms of the U-shaped hoops are pasted on the outer sides of the bottom pressing strips, the opening ends of the U-shaped hoops are pasted and fixed to the two side faces of the web, and side pressing strips are pasted on the upper portions of the two side faces of the web in the length direction and arranged on the outer sides of the U-shaped hoops. According to the frame beam reinforcing structure, the bearing capacity of the frame beam can be greatly improved, the anti-seismic ductility of the frame beam can be enhanced, and the frame beam reinforcing structure has the advantages of being simple in structure, convenient to construct and the like.

Description

Technical Field

[0001] This utility model relates to the field of building structures, and in particular to a frame beam reinforcement structure. Background Technology

[0002] A frame beam is a beam connected to frame columns at both ends, or a beam connected to shear walls at both ends with a span-to-depth ratio of not less than 5. Frame beams generally require special reinforcement to meet seismic resistance requirements. However, current seismic treatment of frame beams mostly relies on internal structural modifications, such as adding reinforcing steel bars, which is costly. Furthermore, in the event of a large sway during an earthquake, causing the frame beam to sway, localized cracking or even fracture may still occur, necessitating further improvements. Utility Model Content

[0003] The purpose of this invention is to provide a frame beam reinforcement structure to solve the problems existing in the prior art.

[0004] The purpose of this utility model is achieved as follows: A frame beam reinforcement structure includes a T-shaped beam body, which includes a top plate and a web. A negative moment stress strip is pasted on the top plate along its length, and negative moment pressure strips are pasted vertically at intervals on the negative moment stress strip. A bottom pressure strip is pasted on the bottom of the web along its length. U-shaped hoops are spaced along the length of the web. The bottom of the U-shaped hoops is pasted on the outside of the bottom pressure strips, and the open end is pasted and fixed to the two sides of the web. Side pressure strips are pasted on the upper part of the two sides of the web along its length, and the side pressure strips are located on the outside of the U-shaped hoops.

[0005] The frame beam reinforcement structure of this utility model, by setting negative moment stress strips, negative moment compression strips, bottom compression strips, U-shaped hoops and side compression strips on the top plate and web plate of the frame beam respectively, can not only greatly improve the load-bearing capacity of the frame beam, but also enhance its seismic ductility, and has the advantages of simple structure and convenient construction.

[0006] As a further improvement of this utility model, the negative moment stress strip is set near the connection position between the beam body and the frame column, and the negative moment compression strip is symmetrically set on both sides of the frame column, with three strips per floor. That is, the negative moment stress strip and the negative moment compression strip only need to be set in the negative moment section of the frame beam, and do not need to be set along the entire length, further saving costs.

[0007] As a further improvement of this utility model, the negative bending moment bearing strip has a length of 600mm and a width of 100mm, which ensures that it can effectively resist the negative bending moment in the building structure and ensure the stability and safety of the structure.

[0008] As a further improvement of this utility model, the side pressure strip and the web are connected by bolts that are spaced apart to prevent the side pressure strip from falling off over time or due to earthquake shaking.

[0009] As a further improvement of this utility model, the width of the U-shaped hoop is 200mm, and the spacing between the U-shaped hoops is 200mm. The U-shaped hoop is set at the point of concentrated load application, which increases the overall strength and stiffness of the frame beam, improves its bending and shear resistance, and at the same time makes the frame beam subject to greater restraint force, effectively improving the load-bearing capacity and seismic performance of the frame beam.

[0010] As a further improvement of this utility model, the width of the side pressure strip is 100mm to ensure the effect of earthquake resistance and crack prevention.

[0011] As a further improvement of this utility model, the negative moment stress strip, negative moment compression strip, bottom compression strip, U-shaped hoop, and side compression strip are all made of carbon fiber cloth. The density of carbon fiber cloth is about one-quarter that of steel, but its tensile strength is 7 to 10 times that of ordinary steel bars, which can effectively improve the load-bearing capacity of the structure, while reducing the self-weight of the structure. In addition, the high elastic modulus of carbon fiber cloth can effectively control the micro-deformation such as temperature cracks and rust expansion cracks, ensuring the stability of the structure. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the frame beam reinforcement structure of this utility model.

[0013] Figure 2 for Figure 1 KK View.

[0014] The components include: 1. Beam body, 1A. Top plate, 1B. Web plate, 2. Negative moment stress strip, 3. Negative moment pressure strip, 4. Bottom pressure strip, 5. U-shaped hoop, 6. Side pressure strip, 7. Frame column, and 8. Bolt. Detailed Implementation

[0015] like Figure 1-2 The frame beam reinforcement structure shown includes a T-shaped beam body 1, which comprises a top plate 1A and a web 1B. A negative moment stress strip 2 is attached along the length of the top plate 1A, and negative moment compression strips 3 are vertically spaced and attached to the negative moment stress strip. A bottom compression strip 4 is attached along the length of the bottom of the web 1B, and U-shaped hoops 5 are spaced along the length of the web 1B. The bottom of the U-shaped hoops 5 is attached to the outside of the bottom compression strips 4, and the open ends are attached and fixed to the two sides of the web 1B. Side compression strips 6 are attached along the length of the upper part of both sides of the web 1B, and are positioned outside the U-shaped hoops 5. The negative moment stress strips 2, negative moment compression strips 3, bottom compression strips 4, U-shaped hoops 5, and side compression strips 6 are all made of carbon fiber cloth. Carbon fiber cloth has a density about one-quarter that of steel, but its tensile strength is 7 to 10 times that of ordinary steel bars. It can effectively improve the load-bearing capacity of the structure while reducing the self-weight of the structure. In addition, carbon fiber cloth has a high elastic modulus, which can effectively control the micro-deformation such as temperature cracks and rust expansion cracks, ensuring the stability of the structure.

[0016] Specifically, negative moment stress strips 2 are positioned near the connection point between the beam body 1 and the frame column 7, while negative moment compression strips 3 are symmetrically positioned on both sides of the frame column 7, with three strips per floor. This means that negative moment stress strips 2 and 3 only need to be placed in the negative moment section of the frame beam, rather than extending along its entire length, further saving costs. The negative moment stress strip 2 is 600mm long and 100mm wide, ensuring effective resistance to negative bending moments in the building structure and guaranteeing structural stability and safety. U-shaped hoops 5 are 200mm wide and spaced 200mm apart. These hoops are placed at concentrated load points, increasing the overall strength and stiffness of the frame beam, improving its bending and shear resistance, and simultaneously subjecting the frame beam to greater constraint, effectively enhancing its load-bearing capacity and seismic performance. Side compression strips 6 are 100mm wide, ensuring seismic and crack-resistant effects. The side compression strips 6 are also connected to the web 1B by spaced bolts 8 to prevent them from detaching over time or due to seismic swaying.

[0017] The frame beam reinforcement structure in this embodiment, by setting negative moment stress strips 2, negative moment pressure strips 3, bottom pressure strips 4, U-shaped hoops 5, and side pressure strips 6 on the top plate 1A and web plate 1B of the frame beam respectively, can not only greatly improve the load-bearing capacity of the frame beam, but also enhance its seismic ductility, and has the advantages of simple structure and convenient construction.

[0018] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A frame beam reinforcing structure comprising a T-shaped beam body including a top plate and a web, characterized by: The top plate is pasted with negative bending moment force strips along the length direction, negative bending moment pressing strips are pasted on the negative bending moment force strips vertically and at intervals, the bottom of the web plate is pasted with bottom pressing strips along the length direction, U-shaped hoops are arranged on the web plate along the length direction at intervals, the bottom of the U-shaped hoop is pasted outside the bottom pressing strip, the open end is pasted and fixed with the two side surfaces of the web plate, side pressing strips are pasted on the upper part of the two side surfaces of the web plate along the length direction, and the side pressing strips are arranged outside the U-shaped hoop.

2. The frame beam reinforcing structure according to claim 1, characterized by: The negative bending moment force strips are arranged close to the connection position of the beam body and the frame column, the negative bending moment pressing strips are symmetrically arranged on the two sides of the frame column, and the number of each layer is 3.

3. The frame beam reinforcing structure according to claim 2, characterized by: The length of the negative bending moment force strip is 600 mm, and the width is 100 mm.

4. The frame beam reinforcing structure according to claim 1, characterized by: The side pressing strip and the web plate are further connected through the spaced bolts.

5. The frame rail reinforcement structure of claim 1, wherein: The width of the U-shaped hoop is 200 mm, and the interval of the U-shaped hoop is 200 mm.

6. The frame rail reinforcement structure according to any one of claims 1-5, characterized in that: The width of the side pressing strip is 100 mm.

7. The frame rail reinforcement structure according to any one of claims 1-5, characterized in that: The negative bending moment force strip, the negative bending moment pressing strip, the bottom pressing strip, the U-shaped hoop and the side pressing strip are all made of carbon fiber cloth.

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