I'm trying to determine how to calculate the required weld size for a built-up column. This is not a typical built-up column (i.e. lattice, etc.). This built-up column consists of three plates to form an "I" section. There are welds between the web and the flanges.
Obviously, the welds sizes...
I'm working on a small project where we are replacing a portion of the concrete sidewalk on top of a below grade parking garage. Basically the below grade parking garage extends beyond the face of the building. The concrete sidewalk is bearing on the structural concrete deck. I have two...
I recently worked on a project where I was asked to develop reinforcing to create an opening in a brick masonry load bearing wall. The opening was approximately 9’ and the cross section of the wall was triple wythe brick masonry. We were looking at using the “pinch beam” method (as found in...
I'm analyzing a steel bolt thru anchor that was installed thru a hardened reinforced concrete slab. The slab was core drilled, and then the anchor was pushed thru the hole. On the backside is a 3"x3"x1/2" back plate. The anchor is loaded in pure tension.
I'm trying to determine the concrete...
I've been asked to develop a repair procedue for 10 4-story residential apartment buildings. Standard brick buildings with wood trusses that are approximately 40' long.
The buildings are currently having ventilation problems.
During my investigation, I found that there is no opening at the...
Does anyone have insight on how one can obtain a watertight full depth concrete replacement for a concrete liquid retaining structure?
Is simply installing patch material against existing concrete adequate? Thanks!!!
I’m surprised I have not found this topic elsewhere on eng-tips. I'm trying to find out if there are any books that explain structural consequences from weld deficiencies. I will be looking at visual inspection and ultrasonic inspections soon, and I need to know what to reject and/or accept...
I’m looking into possibly requiring the installation of a ½” diameter lag screw into the end grain of a 2x8.
Obviously I have several concerns regarding this:
1. Constructability: I’m concerned that when the lead holes for the lag screws are drilled, the contractor will damage the 2x8...
Surprisingly, I could not find this issue on any other threads:
I’m developing a repair spec/drawing for a job involving deteriorated concrete balconies. This job is the typical removal and replacement of the embedded handrail post. The concrete balconies are about 50 years old.
The...
I'm designing a two story deck for a client. The column height is about 20' high, and I know that a wood post of this height will not be able to be purchased.
I'm not sure about the best way to splice this connection. I'm going to place the splice at the highest point possible to reduce...
