How do you read steel joist designations?
The K-Series, LH-Series and DLH-Series standard joist designations shall be established by their nominal depth, followed by the letters K, LH or DLH as appropriate, and then by the Section Number designation assigned. The Section Number designations shall range from 01 to 25.
What is an H joist?
H-Beam, as the name suggests, is rolled steel joist (RSJ) with the cross section in the form of the capital letter H. It is the one of the most common and widely used structural steel member used in both residential and commercial building projects.
What are the different types of metal joist?
Types of Steel Joists
- Open web steel joists, K-Series, are primarily designed to support the floors and roofs of buildings.
- Longspan steel joists, LH-Series, are designed to span longer distances than the K-Series.
- Deep longspan steel joists, DLH-Series, are designed to span longer distances than the LH-Series.
What is the difference between I beam and H beam?
H-beam: The H-beam looks like one piece of metal but it has a bevel where three pieces of metal come together. I-beam: An I-beam is not made by welding or riveting sheets of metal together and is only one piece of metal throughout.
How much do steel joists cost?
Steel support beams for residential building range in price from $100 to $400 per foot, or between $1,200 and $4,200.
What is the maximum span for a K series open web steel joist?
60 feet
The K-Series Joists have been standardized in depths from 10 inches (254 mm) through 30 inches (762 mm), for spans up through 60 feet (18288 mm).
What standard are steel joists governed by?
Steel joists shall be erected in accordance with the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor, Code of Federal Regulations 29CFR Part 1926 Safety Standards for Steel Erection, Section 1926.757 Open Web Steel Joists.
How far can a steel joist span?
As with LH-Series joists, DLH-Series (Deep Longspan) joists are for longer span conditions and support larger loads. With standardized depths from 52” through 120” and spans up through 240 feet, DLH joists also allow for special profiles to accommodate a variety of conditions.
What are three benefits of open web steel joists?
AND BENEFITS. OF STEEL JOISTS.
What is stronger RHS or I-beam?
The cross section of the H beam is stronger than the cross section of the I beam, meaning it can bear a greater load. In comparison, the cross section of an I beam can bear direct load and tensile but cannot resist twisting because the cross section is so narrow. This means that it can only bear force in one direction.
How deep is a 26K7 joist?
K-Series Joist Data
| 10K1 | ||
|---|---|---|
| Depth (in.) | 24 | 24 |
| Approx. Wt. (lbs.) | 7.8 | 8.5 |
| 26K5 | 26K7 | |
| Depth (in.) | 26 | 26 |