Existing reinforced concrete stair reinforcing structure

Abstract

The utility model discloses an existing reinforced concrete stair reinforcing structure, which relates to the technical field of structural reinforcing construction and comprises a step section, a high-end stair beam fixedly connected to the upper side, a low-end stair beam fixedly connected to the lower side, a plurality of groups of plate bottom stress steel plates arranged on the lower side of the step section, and edge steel plate pressing strips arranged on the front side and the rear side of each plate bottom stress steel plate. Steel plate sticky steel glue is bonded between the lower side of the step section and the plate bottom stress steel plate, a plurality of sets of anchor bolts are arranged on the edge steel plate pressing strips and the plate bottom stress steel plate, the edge steel plate pressing strips and the plate bottom stress steel plate are fixedly connected to the lower side of the step section through the anchor bolts, the size of the low-end ladder beam and the size of the high-end ladder beam are 250 * 300 mm, the strength grade is C30, the thickness of the step section is 120 mm, and the strength grade is C30. The material of the plate bottom stress steel plate is Q235B, the size of the plate bottom stress steel plate is 40 * 4mm, the material of the edge steel plate pressing strips is Q235B, and the size of the edge steel plate pressing strips is 40 * 4mm. The device has the advantage that the structure of the existing reinforced concrete staircase is reinforced.

Description

Technical Field

[0001] The utility model relates to the technical field of structural reinforcement construction, in particular to an existing steel-concrete staircase reinforcement structure. Background Art

[0002] Many buildings in cities are gradually entering their "middle age" or "old age". Due to the influence of multiple factors such as the environment or surrounding construction activities, many old buildings have many quality problems, and even some components have various cracks, which seriously weaken the structural bearing capacity. This phenomenon has become a problem that needs to be urgently solved by people in this field. Utility Model Content

[0003] The purpose of the utility model is to provide a reinforcement structure for an existing steel-concrete staircase in view of the existing technical defects, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an existing steel-concrete staircase reinforcement structure includes a step section, the upper side of the step section is fixedly connected to a high-end ladder beam, and the lower side of the step section is fixedly connected to a low-end ladder beam;

[0005] A plurality of groups of bottom stress-bearing steel plates are arranged at the lower side of the step section, and edge steel plate pressure strips are arranged at the front and rear sides of the bottom stress-bearing steel plates.

[0006] The utility model further describes that steel plate adhesive is bonded between the lower side of the step section and the stress-bearing steel plate at the bottom of the board.

[0007] The utility model further describes that the edge steel plate pressure strip and the bottom stress-bearing steel plate are provided with a plurality of groups of anchor bolts, and the anchor bolts fix the edge steel plate pressure strip and the bottom stress-bearing steel plate to the lower side of the step section.

[0008] The utility model further states that the size of the low-end ladder beam and the high-end ladder beam is 250*300mm, and the strength grade is C30;

[0009] The thickness of the step section is 120 mm and the strength grade is C30.

[0010] The utility model further illustrates that the material of the bottom stress-bearing steel plate is Q235B, and the size is 40*4mm;

[0011] The material of the edge steel plate strip is Q235B and the size is 40*4mm.

[0012] The utility model further describes that the steel plate adhesive is Class I adhesive, and the anchor bolt specification is M10@200mm.

[0013] Compared with the prior art, the beneficial effect achieved by the utility model is as follows: the utility model reinforces the main body of the stairs by adding a bottom stress-bearing steel plate and an edge steel plate strip on the lower side of the step section, connecting the bottom stress-bearing steel plate by steel plate glue, and fixing the edge steel plate strip and the bottom stress-bearing steel plate to the lower side of the step section by anchor bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the staircase reinforcement elevation of the utility model;

[0016] Figure 2 It is a schematic diagram of the plan of the stair reinforcement of the utility model;

[0017] In the figure: 1. Low-end ladder beam; 2. High-end ladder beam; 3. Step section; 4. Load-bearing steel plate at the bottom of the board; 5. Steel plate glued with steel glue; 6. Edge steel plate pressure strip; 7. Anchor bolt. DETAILED DESCRIPTION

[0018] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 The utility model provides a technical solution: an existing steel-concrete staircase reinforcement structure includes a step section 3, a high-end ladder beam 2 is fixedly connected to the upper side of the step section 3, and a low-end ladder beam 1 is fixedly connected to the lower side of the step section 3.

[0020] Several groups of bottom stress-bearing steel plates 4 are arranged on the lower side of the step section 3, and steel plate adhesive 5 is bonded between the lower side of the step section 3 and the bottom stress-bearing steel plates 4. Edge steel plate pressure strips 6 are arranged on the front and rear sides of the bottom stress-bearing steel plates 4, and several groups of anchor bolts 7 are arranged on the edge steel plate pressure strips 6 and the bottom stress-bearing steel plates 4. The anchor bolts 7 fix the edge steel plate pressure strips 6 and the bottom stress-bearing steel plates 4 to the lower side of the step section 3.

[0021] The size of the low-end ladder beam 1 and the high-end ladder beam 2 is 250*300mm, and the strength grade is C30;

[0022] The thickness of step section 3 is 120mm and the strength grade is C30;

[0023] The material of the bottom load-bearing steel plate 4 is Q235B, and the size is 40*4mm;

[0024] Steel plate adhesive 5 is Class I adhesive;

[0025] The material of the edge steel plate strip 6 is Q235B, and the size is 40*4mm;

[0026] The specification of anchor bolt 7 is M10@200mm.

[0027] In this embodiment, a bottom stress-bearing steel plate 4 and an edge steel plate strip 6 are added to the lower side of the step section 3, and the bottom stress-bearing steel plate 4 is connected by steel plate adhesive 5, and the edge steel plate strip 6 and the bottom stress-bearing steel plate 4 are fixed to the lower side of the step section 3 by anchor bolts 7, thereby reinforcing the main body of the staircase.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. An existing steel-concrete staircase reinforcement structure, comprising a step section (3), characterized in that: The upper side of the step section (3) is fixedly connected to a high-end ladder beam (2), and the lower side of the step section (3) is fixedly connected to a low-end ladder beam (1); A plurality of groups of bottom stress-bearing steel plates (4) are arranged at the lower side of the step section (3), and edge steel plate pressure strips (6) are arranged on both the front and rear sides of the bottom stress-bearing steel plates (4).

2. The existing steel-concrete staircase reinforcement structure according to claim 1 is characterized in that: Steel plate adhesive (5) is bonded between the lower side of the step section (3) and the load-bearing steel plate (4) at the bottom of the board.

3. The existing steel-concrete staircase reinforcement structure according to claim 2 is characterized in that: The edge steel plate pressure strip (6) and the bottom stress-bearing steel plate (4) are provided with a plurality of groups of anchor bolts (7), and the anchor bolts (7) fix the edge steel plate pressure strip (6) and the bottom stress-bearing steel plate (4) to the lower side of the step section (3).

4. The existing steel-concrete staircase reinforcement structure according to claim 3 is characterized in that: The dimensions of the low-end ladder beam (1) and the high-end ladder beam (2) are 250*300 mm, and the strength grade is C30; The thickness of the step section (3) is 120 mm, and the strength grade is C30.

5. The existing steel-concrete staircase reinforcement structure according to claim 4 is characterized in that: The material of the bottom bearing steel plate (4) is Q235B, and the size is 40*4mm; The material of the edge steel plate strip (6) is Q235B, and the size is 40*4mm.

6. The existing steel-concrete staircase reinforcement structure according to claim 5 is characterized in that: The steel plate adhesive (5) is Class I adhesive, and the specification of the anchor bolt (7) is M10@200mm.

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