Overloading would be one reason. Or the wood moisture content was too high when installed and it has bowed as it dried out. If this relates to old construction, there could be insect (termite) damage or rot that has weakened the member.
There's little choice. Conductors (not 'cables') sag, because of their weight. However, there's also a practical reason for deliberately allowing conductors to sag; if they were too 'tight', then they would not be able to contract during cold weather without pulling the poles over.
tsunami
It can trigger a tsunami.
To calculate the sag between two transmission poles, you can use the catenary equation which considers the weight of the span wire and the tension in the wire. The formula takes into account the span length, weight per unit length of the wire, and the tension in the wire to determine the sag. It is important to ensure that the sag is within acceptable limits for safety and operational purposes.
The reflection of sound waves off of walls, floor, ceiling, seats, and people causes reverberation.
A joist note on a first floor plan would refer to the Joist below that floor, a joist note on the third floor plan woud be for that floor.
it depen on the size of the joist
Replacing a floor joist involves removing the damaged joist, measuring and cutting a new joist to fit, and then installing the new joist in place of the old one. It is important to provide proper support for the surrounding structure during the replacement process to ensure the stability and safety of the floor. It is recommended to consult with a professional contractor or structural engineer for guidance and assistance in replacing a floor joist.
There can be numerous causes for a floor to buckle over a floor joist. Flooring was not installed perpendicular to floor joist. Flooring was not allowed for proper expansion - expansion gap needed. Flooring was not properly fastened or not enough fasteners was applied. Excessive water or moisture got onto the flooring causing it to buckle - check appliances, plumbing, windows and doors for water. Damaged or cracked floor joist.
Signs of a cracked floor joist include sagging floors, uneven surfaces, and creaking noises. To repair a cracked floor joist, you can sister the damaged joist by attaching a new joist alongside it for added support. It is important to consult with a professional contractor for proper assessment and repair.
Almost for certain, you have water damage in your sub floor which is weakening the floor, causing it to sag, causing the tile to crack. Yes you could replace the sub floor and flooring, but find what's causing the water damages and fix that first. or a joist could be broken
Floor joist or ceiling joist? Floor joist have a board on the end all the way along the side of the building called a rim joist. Like the cross bar on the top of a T. Ceiling joist are nailed down into the top plate of the wall and to the rafters where possible.
To reinforce a floor joist effectively, you can sister it with a new joist alongside the existing one, using construction adhesive and nails or screws to secure them together. This will provide additional support and strengthen the floor structure.
to support the sub floor.
Signs of a rotted floor joist include sagging floors, musty odors, visible mold or mildew, and soft spots in the floor. To repair a rotted floor joist, the damaged section should be removed and replaced with a new joist. It is important to address the source of the moisture that caused the rot to prevent future damage.
Not sure what you mean? floor joist span table???
Joist possibly ? A joist is the boards under the floor and above the ceiling that span the room or building. What the floor or ceiling is attached to.