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- Subject: Fwd: Re: Load Spread on Concrete Floor Slabs
- From: rlewis(--nospam--at)techteam.org (Richard Lewis)
- Date: 30 Jul 1997 14:51:46 GMT
In a message dated 97-03-07 17:56:06 EST, you write: << What distance would you spread out a wheel load from a forklift on a concrete floor slab that has support beams every 5' o.c. if you know the floor thickness, flexural reinforcement, temperature reinforcement, contact area (7" x 4" approx), wheel spacing and wheel load. Is there any recommendations, references or rules of thumb? To date I have not found any insight. Thanks in advance. Mike Zaitz >> UBC 94 - Section 1605.2.3 is probably better suited for your needs. Accordingly, you can assume the load distributed over 2.5 ft. For the problem you described, one simple approach would be to distribute the load over 7" + 2*slab thickness. This is very conservative. If you want to go little further, you can distribute the load at 45 degrees from each of the corners of 7"x4" area. If you place the load in the center of girders spaced at 5ft, the effective width will be 5'-7". I will probably tend to check the slab strength for about 3.5 ft effective width. Thicker the slab, wider you can go. If the laods are very heavy and the slab too thin, you may want to check punching shear at the edge of beam. One good source is ASHTO Guide specifications for distribution of loads for Highway bridges, section 3.24. I have 1994 version. There are other references, probably some text books on design of concrete slabs. Hope this helps. Anand Nene --- Internet Message Header Follows --- Received: from server1.seaoc.org (bqe.com [22.214.171.124]) by host1.texramp.net (8.8.5/8.8.5) with SMTP id UAA01077 for <rlewis(--nospam--at)techteam.org>; Fri, 7 Mar 1997 20:39:57 -0600 (CST) Received: from emout18.mx.aol.com by server1.seaoc.org (NTList 3.02.10) id fa008585; Fri, 7 Mar 1997 18:32:34 -0800 Received: (from root@localhost) by emout18.mail.aol.com (8.7.6/8.7.3/AOL-2.0.0) id VAA11562 for seaoc(--nospam--at)seaoc.org; Fri, 7 Mar 1997 21:30:23 -0500 (EST) Date: Fri, 7 Mar 1997 21:30:23 -0500 (EST) From: AnandNene(--nospam--at)aol.com Message-ID: <970307213021_-869957532(--nospam--at)emout18.mail.aol.com> To: seaoc(--nospam--at)seaoc.org Subject: Re: Load Spread on Concrete Floor Slabs Reply-To: seaoc(--nospam--at)seaoc.org Error-To: seaoc-ad(--nospam--at)seaoc.org X-Loop: seaoc(--nospam--at)seaoc.org X-Info: [SEAOC] Owner: seaoc-ad(--nospam--at)seaoc.org X-POP3-Rcpt: seaoc-ad(--nospam--at)seaoc.org X-Sender: seaoc-ad(--nospam--at)seaoc.org Precedence: list X-ListMember: rlewis(--nospam--at)techteam.org [seaoc(--nospam--at)seaoc.org] __________________________________________________ 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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