We have incorrectly ordered 350W which has failed a charpy test to match 350WT. The order consist of a small quantity of C Channel and plate what can I source today as an equal or better the 350WT.
We have installed caissons to toe in front of existing sheet piles that are to short in a dock. We know have to excavate in order to install an underwater cap on top of the caissons. In order to excavate we have to build a temporary system to support the wall until the cap is constucted. Based...
We are currently working with an owner who has now stated that they are not comfortable with the use of the DMT instead of the provided data using the SPT. We went ahead with our own DMT testing to provide better data in designing for a temorary works required to construct the project.
We are a contractor just getting into this work for Highway departments.We always use engineering to do our shorings and usually go with the more expensive sheet pile designs.We have seen many old timers build chaep systems especially on private jobs as in this case there days are numbered.
We completed the coating of a weathered steel bridge using conventional blasting of the steel and meeting the proper profiles to paint a 3 coat epoxy zinc coating. The paint is now starting to fail.Is weathering steel meant to be painted. Any advice would be helpful.
Materials pricing is increasing but I think the biggest increase are due to regulations in the public sector and the lack of skilled labour to meet some public sector which sometimes ramp up with large bridge programs.It takes 5 years on average for a foreman to learn how to build bridges on his...
Have you looked at ripping the floor out.You would end up with a nice new look and new flloor instead of a patch job.
You may not even pay much more for it.
We have hired a subcontractor to paint weathered steel girders,the spec calls for a waterblast surface preparation with very little flash rust.Our sub is finding this method impractical and has requested to use abrasive blasting.Which is better.
How do I calculate the vertical lift capacity of a 1-inch dia. 304 S.Stl. UNC bolt?
The nut & bolt act as a lifting device and will be torqued by hand. The action of the pitch will raise the load. At what point should we worry about load binding?
From the mechanical forum, I have learned that...
How do I calculate the vertical lift capacity of a 1-inch dia. 304 S.Stl. UNC bolt?
The nut & bolt act as a lifting device and will be torqued by hand. The action of the pitch will raise the load. At what point should we worry about load binding?
Roadway embankment widening/grade raise. Sideslope is 45-degrees. Engineer requires clay fill using geogrid reinforcement. Normally this is done with cohesionless material.
Does anyone have any experience or comments regarding the use of clay in such an application? What about concerns...
