Trolley Crane Extension
Trolley Crane Extension
(OP)
My boss has asked me to design a 6ft (cantilevered) extension onto an overhead crane trolley. The beam is a continuous beam, underslung from the roof supports. I intend to butt weld an extension to the end of the beam; however, I am a bit confused on how to analyze the connection points. In four places, it has four bolts through the top flange in a square pattern, spaced approximately 3 inches apart on either side. Would this connection be considered a rigid connection? If it is considered rigid, how do I make sure that I am not overstressing the bolts. Should the bolts be considered a couple moment to withstand the addition moments added to the end?
I apologize if this all seems trivial as this is my first steel design project. I am trying to assess whether or not additional supporting structure is required for this setup. My intuition says yes, but I am trying to justify it. The crane is a 2 ton hand trolley.
Thanks in advance.
I apologize if this all seems trivial as this is my first steel design project. I am trying to assess whether or not additional supporting structure is required for this setup. My intuition says yes, but I am trying to justify it. The crane is a 2 ton hand trolley.
Thanks in advance.






RE: Trolley Crane Extension
I think you will get different opinions as to the interpretation of the connections.
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: Trolley Crane Extension
RE: Trolley Crane Extension
Funny thing though, my job was to find out the source of the trouble, and when I offered to add designing a fix to the purchase order, they decided to handle it themselves.
Michael.
Timing has a lot to do with the outcome of a rain dance.