Reinforcement structure of a unidirectional frame

Abstract

The utility model provides a reinforcing structure of one -way frame, is located the position of longitudinal beam and the node field of frame column of one -way frame, reinforcing structure includes: steel hoop, steel gasket, annular stiffening plate, vertical stiffening plate and connecting tendon, steel hoop is fixed in the upper and lower two ends of frame column node field, steel gasket is fixed in the side of steel hoop close to longitudinal beam, annular stiffening plate is fixed in the other side of steel hoop, vertical stiffening plate is located between annular stiffening plate and steel gasket, one end of connecting tendon is fixed with longitudinal reinforcement in longitudinal beam through welding, the other end is fixed with steel gasket, the utility model discloses a steel structure connecting piece is set near the beam column frame structure node field to enhance the reliability and safety of beam column node connection and does not occupy building space, and the applicability is good, and the construction is convenient, and the project cost is low, and the economic performance is good, has wide application prospect in the field of reinforcing.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reinforcing structure of a one-way frame. BACKGROUND

[0002] Frame structure is a very widely used structure form in engineering structure, beams and columns are connected by reinforcement to form a load-bearing system, i.e. the beams and columns form a frame to resist horizontal and vertical loads during use.

[0003] A large number of frame structures are designed and constructed as one-way frames, i.e. the bearing capacity and reinforcement requirements are calculated according to a single frame, and the frame beams are only structurally connected in one direction. This structure has poor seismic bearing capacity and continuity, and the force transmission path is single and lacks redundancy, which can easily cause vertical load-bearing components to be broken one by one, resulting in continuous collapse.

[0004] The main reinforcement methods for one-way frames include adding seismic walls and adding supports to strengthen the stiffness of the structure. Although the main reinforcement methods are mature, they have large workloads, long construction periods, affect the usable area of the building, and have high engineering costs.

[0005] Therefore, it is crucial to take reasonable and reliable reinforcement measures for the frame structures with the above problems to achieve the performance level specified in the specifications. SUMMARY

[0006] The utility model solves the technical problem of providing a reinforcing structure of a one-way frame, which can set a steel structure connecting piece at the node of the frame structure to enhance the reliability and safety of the beam-column node connection, and is simple to construct and has high operability.

[0007] The utility model is implemented as follows: In a first aspect, the utility model provides a reinforcing structure of a one-way frame, which is arranged at the node domain of a longitudinal beam and a frame column of the one-way frame. The reinforcing structure comprises a steel sleeve, a steel gasket, an annular stiffener, a vertical stiffener, and a connecting rib. The steel sleeve is fixed to the upper and lower ends of the frame column node domain. The steel gasket is fixed to one side of the steel sleeve close to the longitudinal beam. The annular stiffener is fixed to the other side of the steel sleeve. The vertical stiffener is arranged between the annular stiffener and the steel gasket. One end of the connecting rib is fixed to the longitudinal rib in the longitudinal beam by welding, and the other end is fixed to the steel gasket.

[0008] Further, the steel sleeve is fixedly connected to the frame column by chemical bolts.

[0009] Further, an epoxy resin glue filling layer is arranged between the steel sleeve and the frame column.

[0010] Further, the welding length of the connecting rib with the longitudinal rib and the steel gasket is 10d, d is the maximum value of the diameter of all longitudinal ribs in the longitudinal beam.

[0011] Further, the vertical stiffening plate is fixedly connected with the annular stiffening plate, the steel gasket and the steel hoop through welding.

[0012] Further, the specification of the connecting rib is C25.

[0013] The utility model discloses the advantages lie in: the utility model discloses a steel structure connecting piece is set up near the beam column frame structure node domain to enhance the reliability and safety of beam column node connection and does not occupy building space, and the adaptability is good, and the construction is convenient, and the project cost is low, and the economic performance is good, has wide application prospect in the field of reinforcement. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in connection with the embodiments with reference to the drawings.

[0015] Figure 1 It is a reinforcing structure of one-way frame structure diagram.

[0016] Figure 2 It is Figure 1 The local enlarged view of A in the figure.

[0017] Figure 3 It is Figure 1 The top view of the structure shown.

[0018] Mark explanation in the figure: 1, longitudinal beam; 2, frame column; 3, steel hoop; 4, steel gasket; 5, annular stiffening plate; 6, vertical stiffening plate; 7, connecting rib; 8, longitudinal rib; 9, chemical bolt. DETAILED DESCRIPTION

[0019] Example one, please refer to Figures 1 to 3 The utility model provides a reinforcing structure of one-way frame, sets up at the position of the node domain of longitudinal beam 1 and frame column 2 of one-way frame, the reinforcing structure includes: steel hoop 3, steel gasket 4, annular stiffening plate 5, vertical stiffening plate 6 and connecting rib 7, the steel hoop 3 is fixed in the upper and lower two ends of frame column 2 node domain, the steel gasket 4 is fixed in the side of steel hoop 3 close to longitudinal beam 1, the annular stiffening plate 5 is fixed in the other side of steel hoop 3, the vertical stiffening plate 6 is arranged between annular stiffening plate 5 and steel gasket 4; The longitudinal beam end of one-way frame and beam end longitudinal rib 8 protective layer are chiseled, make longitudinal rib 8 expose, and the rust removal treatment is carried out to longitudinal rib 8, and the area 10 of chiseling is as Figure 1As shown. After the longitudinal reinforcement 8 is exposed, one end of the connecting rib 7 is fixed with the longitudinal reinforcement 8 in the longitudinal beam 1 by welding. The other end of the connecting rib 7 is fixed with the steel pad 4 by welding.

[0020] Specifically, the steel sleeve 3 is fixedly connected with the frame column 2 through the chemical bolt 9.

[0021] Specifically, an epoxy resin glue filling layer is arranged between the steel sleeve 3 and the frame column 2.

[0022] Specifically, the welding length of the connecting rib 7 with the longitudinal reinforcement 8 and the steel pad 4 is 10d, and d is the maximum value of the diameters of all the longitudinal reinforcements 8 in the longitudinal beam 1.

[0023] Specifically, the vertical stiffening plate 6 is fixedly connected with the annular stiffening plate 5, the steel pad 4 and the steel sleeve 3 through welding.

[0024] Specifically, the specification of the connecting rib 7 is C25.

[0025] In the second embodiment, the utility model also provides a construction method of the reinforcing structure of the one-way frame, and the method comprises the following steps: Step 1: the longitudinal beam 1 end and beam end longitudinal reinforcement 8 protective layer of the one-way frame to be reinforced are chiseled, and the exposed longitudinal reinforcement 8 is derusted.

[0026] Step 2: the steel sleeve 3 is fixed on the upper and lower ends of the frame column 2 node domain through the chemical anchor bolt, and the frame column 2 is wrapped with the steel sleeve 3 on four sides.

[0027] Step 3: the annular stiffening plate, the steel pad 4 and the vertical stiffening plate 6 are respectively cut and opened and welded with the steel sleeve 3, so that the standard of two-level welds is reached.

[0028] Step 4: the connecting rib 7 with the specification of 25mm is respectively single-sided welded with the longitudinal reinforcement 8 at the longitudinal beam 1 end and the beam bottom longitudinal reinforcement 8 for 10d (d is the maximum value of the diameters of all the longitudinal reinforcements 8, and the same below).

[0029] Step 5: the connecting short rib is single-sided welded with the steel pad 4 for 10d.

[0030] Step 5: the epoxy resin glue filling layer is formed between the steel sleeve 3 and the frame column 2 by filling the epoxy resin glue, and the back surface is coated with fireproof and anticorrosive paint. In step 5, the welding operation should be performed first, and the welding operation is strictly prohibited after the epoxy resin glue is filled.

[0031] It is worth noting that the technical scheme disclosed by the utility model has good applicability in reinforcing engineering of other types of buildings in addition to the reinforcing structure of the one-way frame.

[0032] The method of reinforcing the rigidity by setting shear walls or supports and the like in the unidirectional frame structure is long in construction period and prone to the problems of large difference between dynamic characteristics of the structure in two principal axes and torsion and the like. The utility model discloses a steel structure connecting piece is arranged near the beam column frame structure node domain to enhance the reliability and safety of beam column node connection and does not occupy building space, has good applicability, is convenient in construction, low in engineering cost, good in economic performance and has wide application prospect in the field of house building reinforcement.

[0033] Although the specific embodiments of the utility model are described above, those skilled in the technical field should understand that the specific examples described by us are only illustrative, and are not used to limit the scope of the utility model, and equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the utility model should be covered in the scope of protection of the claims of the utility model.

Claims

1. A reinforcement structure for a unidirectional frame, characterized in that: The reinforcement structure, located at the node area between the longitudinal beam and the frame column of the one-way frame, includes: steel sleeves, steel shims, annular stiffening plates, vertical stiffening plates, and connecting bars. The steel sleeves are fixed at the upper and lower ends of the node area of ​​the frame column, the steel shims are fixed on one side of the steel sleeves near the longitudinal beam, the annular stiffening plates are fixed on the other side of the steel sleeves, and the vertical stiffening plates are located between the annular stiffening plates and the steel shims. One end of the connecting bar is fixed to the longitudinal reinforcement in the longitudinal beam by welding, and the other end is fixed to the steel shim.

2. The unidirectional frame reinforcement structure as described in claim 1, characterized in that: The steel sleeve is fixedly connected to the frame column by chemical bolts.

3. The reinforcement structure of a unidirectional frame as described in claim 1, characterized in that: An epoxy resin filler layer is provided between the steel sleeve and the frame column.

4. The reinforcement structure of a unidirectional frame as described in claim 1, characterized in that: The welding length of the connecting bar, the longitudinal bar, and the steel shim is 10d, where d is the maximum value of the diameter of all longitudinal bars in the longitudinal beam.

5. The reinforcement structure for a unidirectional frame as described in claim 1, characterized in that: The vertical stiffening plate, the annular stiffening plate, the steel shims, and the steel hoops are all fixedly connected by welding.

6. The reinforcement structure of a unidirectional frame as described in claim 1, characterized in that: The connecting ribs are C25 grade.

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