ACI 313-97 PDF

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CONSTRUCTION OF CONCRETE SILOS AND STACKING TUBES FOR STORING GRANULAR MATERIALS (ACI ) AND COMMENTARY–ACI R-. ACI January Standard Practice for Design and Construction of Concrete Silos and Stacking Tubes for Storing Granular Materials. Does anyone have experience with ACI and designing steel bins? I am specifically concerned with calculating loads on bins and the.

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Download Now White Paper: His arguement is that he is confortable with his designs based on his experience and therefore sees no reason to utilize a seemingly more conservative approach. Defense manufacturing is all about project manufacturing afi project accounting. Reasons such as off-topic, duplicates, flames, illegal, ai, or students posting their homework.

An older version of the spec ACI had factors up to 2. Join your peers on the Internet’s largest technical engineering professional community. Appears on pages s: Based on test results shown in Gaylord the ACI equations are as good as any and it is an actual written specification.

I get slighlty higher lateral pressures, but he uses slightly higher impact factors Gaylords factors. I haven’t made it through all of it yet but plan to do so to see if they have changed any of their procedures, or if there is anything else new. 313–97 anyone have experience with ACI and designing steel bins? Download Now Defense manufacturing is all about project manufacturing and project accounting.

Resources Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Thanks for the input, -Mike.

This ACI standard practice gives material, design, and construction requirements for reinforced concrete silos, stave silos, and stacking tubes for storing granular materials. What I recall from using the Gaylord book is that they give several different equations and factors, and then say “You ack use this one, but some people use this one and this third method seems to work okay too”.

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International Concrete Abstracts Portal

You could go on for years building structures that were seriously overstressed, until finally one collapses. Appendices provide values for over pressure and impact factors form stored materials. Red Flag This Post Please let us know here why this post is inappropriate. Bin design with ACI It looks to me at this point that I will be using a combination of methods depending on if it’s a shallow bunker or deep bin, filling or emptying, ai or mass-flow, or a vertical wall or hopper.

He uses the Gaylord’s infomation. If there are any suggestions or if anyone knowns of a source of good information, please let me know. To me Gaylord and Gaylord is the latest information because that was when I first became aware of the overpressure coefficients, although they do 313–97 several different ways to do the calcs.

International Concrete Abstracts Portal.

As a consultant I feel I need to follow guidelines established by nationally recognized authorities even thought there are few. Concrete; Filing Info Accession Number: The standard includes requirements for seismic design and hopper bottom design.

But that’s just a guess. Promoting, selling, recruiting, coursework and thesis posting is forbidden. More often than not, when I’ve designed hoppers or silos, I’ve had very limited information on the flow properties of the product, and was doing good to have a density, which tends to make one reluctant to calculate stresses to 8 decimal points.

Bin design with ACI – Structural engineering other technical topics – Eng-Tips

When I get into other types of bins I like to have testing done to verify the lateral pressures. This should be good enough for me at least for cement, sand, and gravel where I am now working. The interesting thing is that I work with a guy who has been designing water-tanks and silos for 30 years. My designs are always either comparable or slightly conservative to him. Appendices; Figures; References; Tables; Pagination: Silos and stacking tubes are acl structures, posing special problems not encountered in normal building design.

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What I want is ‘good’ final answer.

31397 think I saw this years ago and it was a good reference. I think they difference is the horizontal pressure coeficients. Any help will be appreciated. I have used ACI quite a bit. Very true about the older designs. I would also be cautious about using a particular approach just because it has given “good” results before. While this standard refers to Building Code Requirements for Structural Concrete ACI for many requirements, it puts forth special requirements for the unique cases of static and dynamic loading from funnel flow, concentric flow, and asymmetric flow in silos, and special loadings on stacking tubes.

Buzek as the author. Students Click Here Join Us! It seems to me that many bins have been sucessfully designed in the past just using filling pressures per the Janssen equation, but on the other hand, published literature does clearly indicate that pressures during emptying are greater. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden. Lateral loads Subject Areas: Geotechnology; Highways; Materials; I