I am being asked to form an opening in an existing masonry shear wall. I am interested in the effect of this on the in-plane behaviour - with small window openings the wall can still be considered to be a single wall when calculating the racking resistance. However, as the openings get larger it...
Thank you all for your responses.
MIStructureE_IRE your picture is exactly what I am looking at as it is very common (in Scotland anyway) for residential projects where clients want large glazed sliding doors or to remove walls in traditional apartments. What has been on my mind is the load...
The use of rectangular steel picture frames is common when forming openings in existing masonry walls. I would be interested to hear what deflection criteria people adopt when designing these given there will be deflection of both the top and bottom beams within the frame?
I am carrying out a vibration assessment of a concrete floor in a laboratory building. Certain areas of the facility are to achieve the vc-b criteria which is defined in terms of a limiting rms velocity for any given one-third octave band between 0-80Hz. The building is currently under design...
I am currently designing a piled raft which for a number of reasons will be poured in 2 stages. An initial 1.5m thick pour and then a second 0.9m thick pour on top. I would expect there will be a time gap of 4 weeks or so between the lower and upper pour. The top of the lower pour will be...
There are two publications which it would be worth having a look at:
1. "Blast Effects on Buildings" a book by Larry Mays and P Smith
2. TM5-1300 a code produced in the US
It was a while ago that I used these but they are both intended for blast loading on buildings. If I remember correctly...
