H beam butt web cut a chamfer?

As the name suggests, I-beam is a kind of "I" shaped cross-section section steel, the inner surface of the upper and lower flanges has an inclination, generally 1:6, which makes the flange thin on the outside and thick on the inside, so that the cross-sectional characteristics of the I-beam in the two main planes are very different, and it is difficult to exert the strength characteristics just now in the application. Although thickened I-beams have also appeared in the I-beam market, the structure of I-beams has determined their torsional performance shortcomings.

H-beam is a widely used profile in today's steel structure buildings, and it has many differences compared with I-beam. The first is the flange, and secondly, there is no inclination on the inner surface of the flange, and the upper and lower surfaces are parallel. The cross-sectional characteristics of H-beam are significantly better than those of traditional I-beams, channel steels and angle steels.

Metal processing WeChat, the content is good, it is worth paying attention to. H-beam is a kind of high-efficiency section of the economic section with more optimized cross-sectional area allocation and more reasonable strength-to-weight ratio, which is named because its cross-section is the same as the English letter "H". The two outer sides of the H-beam have no slope and are straight.

This makes the welding and splicing of H-beam steel easier to operate than I-beam, and the mechanical properties per unit weight are better, which can save a lot of material and construction time.

H-shaped steel butt web cut a chamfer, and the utility model relates to a kind of arc chamfering device for grinding arc chamfering of H-shaped steel web.

comprises a fixed frame, a steel web is fixedly placed at the upper end of the fixed frame, a mobile chassis is arranged on the left side of the fixed frame, and the front end of the mobile chassis is fixedly mounted.

H-shaped steel butt web cut a chamfer, well, this kind of operation, the lack of labor should be skilled turners should be able to do.

You lack construction experience This should be the girder of the multi-layer steel structure This node is the place where it is connected to the column The function of the fillet is that there is likely to be a gap when welding on site Add a supporting plate for welding The bevel is opened because the thickness of the flange plate is too thick The welding cannot be burned through In addition, the peer reminds me that the groove direction of the lower flange plate is wrong Do you let the installer weld with his neck up? Just change the bevel of the lower flange plate to the same as that of the upper flange plate.

There is no such method of docking. I saw it for the first time today, and it was labor-intensive, and the flange weld was completely unqualified.

The flange should be 45 ° oblique line fighting, and the weld should be grooved welding; The web should be welded around the steel plate.

There is no requirement for the length of the H-shaped steel butt joint, but there are certain requirements for oblique cutting, so the method is as follows

There is no requirement for the length of the H-beam butt joint, but it requires an oblique cut, generally 45 degrees, that is, the length should not be less than the height of the H-beam.

If for welding H-beam, it is necessary to avoid the flange plate and web splicing seam at the same section, the upper and lower flange plate splicing positions should be staggered with the web splicing position by more than 200 mm, the flange plate splicing length should not be less than 2 times the plate width (this should not be confused with the section steel butt), the web splicing width is not less than 300 mm, and the length is not less than 600 mm.

Features of H-beam:

The inside and outside of the h-shaped steel are parallel or nearly parallel, and the end of the flange is at a right angle, so it is named parallel flange I-beam. The web thickness of H-beam is smaller than that of ordinary I-beams with the same high web, and the width of the flange is larger than that of ordinary I-beams with the same high web, so it is also named wide-edge I-beam.

Determined by the shape, the cross-sectional modulus, moment of inertia and corresponding strength of H-beam are significantly better than ordinary I-beams with the same single weight. Used in metal structures with different requirements, it shows its superior performance regardless of bending torque, pressure load and eccentric load, which can greatly improve the bearing capacity and save 10% to 40% of metal compared with ordinary I-beams.

H-beam has wide flange, thin web, many specifications and flexible use, which can save 15% and 20% of metal when used in various truss structures. Because the inner and outer sides of the flange are parallel, and the edge end is at a right angle, it is convenient to assemble and combine into various components, so that the welding and riveting workload can be saved by about 25%, and the construction speed of the project can be greatly accelerated, and the construction period can be shortened.

Because the parts used in the use of H-shaped steel are the main load-bearing beams and columns, it is required that only one weld is allowed to be spliced for each one. The minimum splicing length is not less than 800mm. All butt beads are subjected to 100% ultrasonic inspection and 100% color finding inspection on both sides.

By rolling H-beam with universal rolling mill, the section of the rolled piece can be extended more uniformly, and the speed difference between the roll surface on the inside and outside of the flange is small, which can reduce the internal stress and shape defects of the product. Appropriately changing the amount of horizontal and vertical rolls of the universal rolling mill can obtain different specifications of H-beam. The roll shape of the universal rolling mill is simple in shape, long in life, and the consumption of rolls can be greatly reduced.

Production Method:

H-beams can be produced by welding or rolling. Welding H-beam is to cut the strip of the right thickness to the appropriate width, and weld the flange and web together on a continuous welding unit. Welded H-beam has disadvantages such as large metal consumption, difficult to ensure uniform product performance, and limited size and specifications.

Therefore, H-beam is mainly produced by rolling method.

In modern rolling production, universal rolling mills are used to roll H-beams. The web of the H-beam is rolled between the upper and lower horizontal rollers, and the flange is rolled into shape simultaneously between the horizontal roller sides and the vertical rollers. Since the universal rolling mill alone cannot apply pressure to the edge end of the flange, it is necessary to set up the edge rolling end machine, commonly known as the edge rolling machine, after the universal frame, so as to depress the edge end of the flange and control the width of the flange.

Check the steel structure drawings to understand the various connection methods, see the steel structure design code.

Generally speaking, they are bolted through the cover plate and welded through the end plate.

The steel plate you are talking about is a reinforced version, right??

The width or length of the web of the welded H-beam can be spliced if it exceeds the size of the steel plate in the market. Splicing in accordance with the requirements of equal strength. The cross-shaped seam is spliced in the upper and lower length and width directions, and the welded weld is good and cross-shaped; T-shaped splicing, that is, the welds of length splicing and width splicing are staggered in a T-shape.

Generally, T-shaped splicing is used, and cross-shaped splicing welds are avoided as much as possible.

That is to say, the No. 2 welding position in the picture can be spliced, and the cross connection and T-type connection are formed. However, the welding sequence should respect the requirements of the above figure.

In the high base difference part, the panel fold angle is excessive (but not 90 degree angle) is generally 155 degrees, 1;According to the design requirements, when there are no special requirements, the web is smaller H-shaped steel joint, and the web is heightened to a larger H-beam height, (non-welded heightening) should be filtered when blanking. 2；According to the height of the two webs, the height-to-length ratio is set to 1:4.

The workpiece can be adjusted when there are dimensional requirements. Or, starting from the H-shaped steel joint part of the larger web, according to the height of the two webs, set the height-to-length ratio to 1:4, and cut off the higher web, so that it can be connected with the panel of the smaller web.

The workpiece can be adjusted when there are dimensional requirements. When the panel is excessive, the joint shall not be located at the weld, and the web weld shall be staggered by at least 250mm. Do you want to add points and grit your teeth?

Are you referring to two H-beams of different sizes butt?

To be honest, I haven't really encountered this one, and generally we have the same size butt, using a Z-shaped joint.

Or the web weld is connected to the outside of the plate.

I hope you can make the problem clearer, and I will also check the steel structure code.

The analysis is as follows:

The H-beam splicing joint of the steel structure can be bolted and welded combined with the joint node or the fully welded joint.

The H-shaped frame column splicing joint should be bolted and welded combined node or fully welded node (Fig.

When using bolts and welded combination nodes, the web should be bolted, and the flange should be connected by a single V-shaped groove and a backing plate with full weld penetration weld (Fig.).

When using all-welded joints, the flange should be made of plate single V-shaped groove and backing plate full weld through weld, and the web should be welded through the double-sided part of the K-shaped groove, and the reverse side is not clearWhen the design requires the web to be fully welded through, if the web thickness is not more than 20mm, it is advisable to use a single V-shaped groove and backing plate for welding (Fig. e) If the web thickness is greater than 20mm, it is advisable to use a K-shaped groove, and the double-sided reverse side is welded after root cleaning (Fig. d).

The comparison of the first floor is correct, mainly divided into structural types, and the size of the section steel, as well as dynamic and static loads.

It can be welded or riveted. Details can be found in Part 2 of the Building Construction Manual (4th Edition).

For the general light steel structure, it is better to stagger the web and the wing plate by more than 300mm

It should be a staggered docking. It can be found in the design specifications.

The significance of stiffener chamfering is to relieve stress and facilitate construction. That place should not be welded.

There are two main types of connections.

In the structural specifications there are.

One is the zigzag joint, as said on the first floor.

He spoke in more detail.

The other is the splint connection method.

It is two identical H-shaped steels, directly docked, of course, the wing plate should be grooved and welded, and then the steel plate is welded on both sides of the web.

Generally, when the first type of welding is used in large-scale H-beams, the second type of welding required for flaw detection can be non-flaw detection.

Determine it on a case-by-case basis.

And this is all about the same type of H-beam butt.

And not the connection you say.

Excuse me. Your bounty is only 0 points.

Drawings are exempt.

The upper and lower plates of one of the H-beams are cut off in a section, leaving only the web, and then the protruding web is inserted into another H-beam for welding.