1 Spasms may affect many different types of muscles in the body, leading to many different symptoms and presentations. 2  Spasms of skeletal muscles are most common and are often due to dehydration and electrolyte abnormalities. 3  The spasm occurs abruptly, is painful, and is usually short-lived. If muscle spasms are especially painful, if they do not resolve or if they recur, medical care should be accessed to look for possible underlying causes. 2  Smooth muscles that are within the walls of hollow organs can go into spasm, causing significant pain.
When you want to attach wood to a steel I-beam, there are two acceptable ways to do it. The first and most traditional way is to pack the web between the I-beam flanges with multiple pieces of wood, then bolt them together. This is a very strong connection, but it wastes a lot of time and raw materials in the process.
Figure a) shows an old floor reinforced with âtrimmed joists. Steel beam reinforcement is performed using U-type channels, braced to limit the risks of warping and positioned on one or both sides of the piece to be strengthened. Defective joists, often warped, are secured to these new sections.II-2. In the case of floors, reinforcement of the initial steel section is performed by the addition of steel flats and/or sections, which are fastened to the original beam by welding, bolting or bonding.