Reinforcing device for preventing local buckling of H-shaped steel member

Abstract

The utility model belongs to the technical field of structural member reinforcing equipment, and particularly relates to a reinforcing device for preventing local buckling of an H-shaped steel member, which comprises an upper end plate, a lower end plate, channel steel and a baffle, the channel steel comprises an upper flange, a lower flange and a web, the two channel steel are symmetrically arranged, the upper flanges of the two channel steel are oppositely arranged, and the lower flanges of the two channel steel are oppositely arranged. The same upper end plate is placed above the upper flanges of the two pieces of channel steel, the same lower end plate is placed below the lower flanges of the two pieces of channel steel, bolts penetrate through the upper end plate, the upper flanges, the lower flanges and the lower end plate to fix the upper end plate, the channel steel and the lower end plate, baffles are welded to the two ends of webs of the two pieces of channel steel respectively, and grooves are formed in the right sides of the upper ends and the lower ends of the baffles. The two baffles at the same end of the web are symmetrically arranged, the grooves are matched with flanges on the two sides of the H-shaped steel member, and grouting holes are formed in the baffles. The reinforcing device adopts an assembly type design, is simple to operate, and overcomes the defects caused by complex optimization of the performance reinforcing technology of the H-shaped steel member.

Description

TECHNICAL FIELD

[0001] The utility model belongs to structural member reinforcing equipment technical field especially relates to a reinforcing device of H shaped steel member prevents local buckling. BACKGROUND

[0002] In the modern building field, H shaped steel member because its excellent mechanical properties and material characteristics, is widely used in high-rise building, large span space structure and industrial plant etc. many engineering scenes. Along with the unceasing expansion of application scene, the stress form of component is increasingly complex, its local buckling problem gradually highlights. Local buckling not only significantly influence the mechanical properties of component, also make the whole structure exist security hidden danger. In order to promote the safety, reliability of structure, the reinforcing device for H shaped steel member local buckling is also more common, but the existing reinforcing device mainly concentrates on the reinforcement of component connection, and the reinforcing effect is poor, and the stability is poor, and the technical optimization from the performance reinforcement of component is relatively complex, and the production process requirement is high. UTILITY MODEL CONTENTS

[0003] The utility model discloses a reinforcing device of H shaped steel member prevents local buckling, solves the problem that the existing reinforcing device mainly concentrates on the reinforcement of component connection, and the effect is poor, and the stability is poor.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] A reinforcing device of H shaped steel member prevents local buckling, including upper end plate, lower end plate, channel steel and baffle, the channel steel includes upper flange, lower flange and web, and the upper flange and the lower flange are all provided with threaded holes, two channel steels are symmetrically arranged, the upper flanges of two channel steels are oppositely arranged, the lower flanges are oppositely arranged, the same upper end plate is placed above the upper flange of two channel steels, the same lower end plate is placed below the lower flange of two channel steels, the upper end plate, the channel steel and the lower end plate are fixed by the bolt passing through the upper end plate, the upper flange, the lower flange and the lower end plate, the webs of two channel steels are respectively welded with baffle at both ends, recesses are formed in the right side of the upper end and the lower end of the baffle, two baffles are symmetrically arranged at the same end of the web, the recesses are matched with the flanges on both sides of H shaped steel member, and a grouting hole is formed in the baffle.

[0006] Preferably, the upper end plate and the lower end plate are both rectangular plates, the lengths of the upper end plate, the lower end plate and the channel steel are the same, and the widths of the upper end plate and the lower end plate are both greater than the width of the flange of H shaped steel member.

[0007] Preferably, the upper end plate, the lower end plate, the channel steel, the bolt and the baffle are all prefabricated, and the size of the H shaped steel member to be reinforced is determined.

[0008] Reinforcement process: the H-shaped steel member includes upper flange, lower flange and web, upper end plate and lower end plate are symmetrically distributed on the outer side of the upper flange and the lower flange of the H-shaped steel member to be reinforced, the upper flange of the two side channel steels is close to the bottom of the upper end plate, the lower flange of the two side channel steels is close to the top of the lower end plate, the outer edge of the web of the channel steel is aligned with the outer edge of the upper end plate and the lower end plate, the upper end plate and the lower end plate are connected with the two side channel steels through bolts, the baffle is welded at the two ends of the channel steel, and the self-compacting concrete is cast on site through the grouting hole of the baffle, so that the bearing capacity and stability of the reinforced member are improved.

[0009] The utility model has the advantages that:

[0010] (1) the upper end plate, the lower end plate and the channel steel are fixed through bolt connection, the channel steel and the baffle are fixed through welding mode, the upper flange and the lower flange of the reinforced H-shaped steel member are reinforced, the reinforced device is practical, and the stability is good, and the partial buckling resistance of the H-shaped steel member is effectively improved.

[0011] (2) when the reinforced device is used, the self-compacting concrete is cast in the space formed by the two side channel steels of the H-shaped steel member web, the H-shaped steel member web, the baffle, the upper flange and the lower flange through the grouting hole of the baffle, the web is reinforced, and the overall buckling resistance and the overall stability of the H-shaped steel member are improved.

[0012] (3) the reinforced device adopts assembly type design, is suitable for the H-shaped steel member of different section sizes, is simple to operate, improves construction efficiency, and makes up for the defects caused by the technical optimization complexity of the performance reinforcement of the H-shaped steel member. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic view of the utility model embodiment;

[0014] Figure 2 It is the split type structure diagram of the utility model embodiment;

[0015] Figure 3 It is the structure schematic view of the channel steel in the utility model embodiment;

[0016] Figure 4 It is the left view of the structure in the utility model embodiment;

[0017] Figure 5 It is the schematic view of the H-shaped steel member for reinforcing in the utility model embodiment;

[0018] Figure 6 It is the reinforcement schematic view of the utility model embodiment.

[0019] Explanation of reference numerals in the attached drawings: 1. Upper end plate; 2. Lower end plate; 3. Channel steel; 31. First upper flange; 32. First lower flange; 33. First web plate; 4. Bolt; 5. Baffle; 51. Grouting hole; 6. H-shaped steel member; 61. Second upper flange; 62. Second lower flange; 63. Second web plate. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-4 As shown, a reinforcement device for preventing local buckling of an H-shaped steel member includes an upper end plate 1, a lower end plate 2, a channel steel 3, bolts 4, and a baffle 5. The upper end plate 1, lower end plate 2, channel steel 3, bolts 4, and baffle 5 are all prefabricated, determined according to the dimensions of the H-shaped steel member 6 to be reinforced. The channel steel 3 includes a first upper flange 31, a first lower flange 32, and a first web 33. Both the first upper flange 31 and the first lower flange 32 have threaded holes. The two channel steels 3 are symmetrically arranged, with their first upper flanges 31 and first lower flanges 32 facing each other. The same upper end plate 1 is placed above the first upper flanges 31 of the two channel steels, and the same lower end plate 2 is placed below the lower flanges of the two channel steels. Both the upper end plate 1 and the lower end plate 2 are rectangular plates. Figure 5 As shown, the H-shaped steel member 6 includes a second upper flange 61, a second lower flange 62, and a second web 63. The upper end plate 1, lower end plate 2, and channel steel 3 have the same length. The widths of the upper end plate 1 and lower end plate 2 are both greater than the widths of the second upper flange 61 and second lower flange 62 of the H-shaped steel member 6. Bolts 4 pass through the upper end plate 1, the first upper flange 31, the first lower flange 32, and the lower end plate 2 to fix the upper end plate 1, channel steel 3, and lower end plate 2. Baffles 5 are welded to both ends of the first web 33 of the two channel steels 3. Grooves are opened on the upper and lower right sides of the baffles 5. Two baffles 5 are symmetrically arranged at the same end of plate 33. The grooves fit into the second upper flange 61 and the second lower flange 62 of the H-shaped steel member, respectively. Grouting holes 51 are opened on the baffles 5. Two connection methods are adopted: the upper end plate, the lower end plate and the channel steel are fixed by bolts, and the channel steel and the baffles are fixed by welding. This strengthens the upper flange and the lower flange of the H-shaped steel member, improves the stability of the strengthening device, and is simple to operate, improving construction efficiency. The grouting is carried out through the grouting holes on the baffles, which strengthens the web and improves the overall buckling resistance of the H-shaped steel member.

[0022] The reinforcing process for the H-shaped steel member 6 is as follows: the upper end plate 1 and the lower end plate 2 are symmetrically distributed outside the second upper flange 61 and the second lower flange 62 of the H-shaped steel member 6 to be reinforced, the first upper flange 31 of the two side channel steels 3 is in close contact with the bottom of the upper end plate 1, the first lower flange 32 of the two side channel steels 3 is in close contact with the top of the lower end plate 2, the outer edge of the first web 33 of the channel steel 3 is aligned with the outer edge of the upper end plate 1 and the lower end plate 2, the connection between the first upper flange 31 and the first lower flange 32 of the channel steel 3 and the upper end plate 1 and the lower end plate 2 is provided with a bolt hole, the bolt 4 passes through the upper end plate 1, the first upper flange 31 and the first lower flange 32 of the channel steel 3 and the lower end plate 2, and the upper end plate 1, the channel steel 3 and the lower end plate 2 are fixed by the bolt, the baffle 5 is welded at both ends of the channel steel 3, the self-compacting concrete is cast in situ through the grouting hole 51 on the baffle 5, and the reinforcement is carried out, as shown in Figure 6 .

Claims

1. A reinforcement device for preventing local buckling of H-shaped steel members, characterized in that, The utility model provides a reinforced H-shaped steel component, including upper end plate, lower end plate, channel steel and baffle, the channel steel includes upper flange, lower flane and web, and upper flange, lower flane all are set screw hole, two channel steel symmetrical settings, the upper flange of two channel steels is opposite setting, and the lower flane is opposite setting, and the upper flange of two channel steels is placed same upper end plate above, and the lower flane of two channel steels is placed same lower end plate below, and the bolt passes through upper end plate, upper flange, lower flane and lower end plate and fixes upper end plate, channel steel and lower end plate, and the web of 2 channel steels both ends is welded baffle respectively, and the recess is set up in the right side of baffle upper end and lower end, and the two baffles of web same end are symmetrical settings, and the recess is fitted with the both sides flange of H-shaped steel component, and the baffle is set up grouting hole on.

2. The H-shaped steel member buckling-restrained strengthening device according to claim 1, wherein The upper end plate and the lower end plate are both rectangular plates, the length of the upper end plate, the lower end plate and the channel steel is the same, and the width of the upper end plate and the lower end plate is greater than the width of the flange of the H-shaped steel component.

3. The H-shaped steel member buckling-restrained bracing device according to claim 1, wherein The upper end plate, the lower end plate, the channel steel, the bolt and the baffle are all prefabricated, and the size of the H-shaped steel component to be reinforced is determined.

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