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Re: Re: Concrete Flat Slab Hole[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: Re: Re: Concrete Flat Slab Hole
- From: rlewis(--nospam--at)techteam.org (Richard Lewis)
- Date: 09 Mar 1999 13:40:04 GMT
seaint(--nospam--at)seaint.org,Internet writes: Dear Richard, Its hard to give you advice without looking at the plans, but the way you describe what you are doing, you are simply adding a new huge column. The column is the width and lenth of an elevator. ( The bearing Cmu wall around the shaft. I imagine this will reduce most of the spans. I suppose you may have cracking in the slab after you cut your hole since you may not have top steel in that region. Just think of it as adding a big column to the mix and calculate the change in demand because of the change in spans. If the existing steel is adequate your done. Expect some cracking because of the new bearing points. Ken Tarlow Thanks for the advice. I understand your thinking. The big difference is that this new "column" makes the slab simply supported and no negative bending. It will increaser the positive bending but the span will be shorter. __________________________________________________ Richard Lewis, P.E. Missionary TECH Team rlewis(--nospam--at)techteam.org The service mission like-minded Christian organizations may turn to for technical assistance and know-how.
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