Diagonal tension capacity for out-of-plane bending of reinforced masonry walls can be assessed using ACI strength design procedures. Direct. Revisions made to ACI since then will be assembled The main committee Letter Ballot on the proposed revision of did. Prior to , flexural crack control requirements in ACI were based on the so- called z-factor method developed be Gergely and Lutz . Their work was based .
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It probably means that the structure is smarter than the engineer, which happens all the time. You have to be a little bit careful with how you approach him so that he doesn’t just dismiss your approach as being a “newbie” who thinks he knows too much. I approached the Senior PE and explained the situation in a very respectful way.
Look, I am attempting to have a casual conversation aic other members of the same profession in an attempt to get advice on how to handle this situation.
If they were underdesigned, there’s a good chance that will never come to light. You can always quote him afi recent rules from the current Ethics Test you just took and passed.
That means if you have a tank failure, you might compromise public health by contamination and the welfare of the public is affected by an economic loss due to failure Public safety is not really a concern.
I understand my obligations as an engineer, those being the reason we are having this conversation in the first place. I hope this helps. Let him know that you still consider him a mentor and that you appreciate the guidance and assistance he has given you. As true as that is, that’s stepping on some toes. New PE Needs Advice You have to 530-08 a little bit careful with how you approach him so that he doesn’t just dismiss your approach xci being a “newbie” who thinks he knows too much.
Just mention what code you are using when you hand it to him for his review, so it doesn’t look like you are trying to sneak one 305-08 him.
It is intended that questions and answers benefit more than just the apparent conversation between two people. New PE Needs Advice My structural professor in college would joke about what buildings were more important. Thanks everyone for your comments. New PE Needs Advice beton 1, These are environmental structures tanks not high rise apartment buildings.
This is a free-flow forum. The PE under which I trained directed me to use “old school” methods in analyzing and designing structures on the basis that a more conservative design would result. Tell him to qci it 350-80 he wants it done his way? Walls should be 1. Explain to him that engineering liability has increased over the years such that both the company and the individual often get brought into lawsuits as co-defendants, ac you want to do what you can to first meet the standard 350-088 care and then to offer conservative yet cost-effective design solutions to your clients.
What I really need is some advice on how to approach the Senior Engineer. The check may have been wrong, but the answer was probably unaffected, as bending and deflection are the main criteria. Ron, I understand what you are saying and I will keep that in mind from now on.
New PE Needs Advice – Civil/Environmental engineering other topics – Eng-Tips
While designing my first project using this new approach, I discovered a significant difference in calculations between the two methods. Hokie66, Shear controls in this case. Join your peers on the Internet’s largest technical engineering professional community.
New PE Needs Advice CivilPE22, As a younger engineer, one of the challenges in your early career is to learn how to convey your point in an effective matter. If he doesn’t want to you the most current code you can refuse to stamp it on basis of Engineering Ethics. His response was “I have done it 305-08 way for years and nothing has failed”.
This may be your approach with the ‘senior’ guy.
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He also had to tip toe around the subject of current standards. Download Now White Paper: First, designs are not only tested by time.
Then you are right to use the current standard, or at the very least use the Working Stress code with the correct interpretation. My attempt was only to be complete Dealing with a job right now that is a complete disaster because of this. Secondly, by using older methods you are deviating from the standard of care practiced by other engineers providing the same services in your locale.
He will immediately pick up on the differences and say I have been way too conservative.
But by the same aic, I’ve done quite a bit of stuff as an engineering subordinate that I wouldn’t have stamped, or would have done differently if I had stamped, but didn’t pitch a fit at all because it was someone else’s stamp. Emphasize the word “we I have decided to basically consider both the out dated methods taught to me as an EIT, and ACI and let the most conservative criteria prevail.
Since 530-08 does not want to learn the methods described in newer codes, I will have to take wci older code that he has been working from for the past 40 years and show him how it has been miss-interpreted.
Basically walls and slabs loaded like beams were sized for an allowable shear stress in the concrete of 2. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.
You have several issues with which to deal. The fact of the matter is, there are many, many, structures 530-08 have been designed and passed the test of time under the ” old-school ” design methods I was taught as and EIT.
Hokie66, The doubling of member thickness is not due to a change in the code, but 350-8 misinterpretation of the old working stress code. The fact that there have not been problems with the structures designed incorrectly doesn’t mean the standard was wrong. He is not the one who has to worry about this for the next 40 years if your stamp is on it, he’ll be long gone. My partner was going through this same situation at his job before.