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Re: Ask All Your Questions On Building Foundations/structural Issues -expert by shileowo: 2:29pm On Jun 28, 2018 |
i will like a long lasting solution . but how will that be sir opalu: |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Nobody: 9:35am On Jul 03, 2018 |
Hello house, this is for the building professionals on NL. please I would like to ask if German Floor is compulsory for a duplex. 1 Like |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Nobody: 9:37am On Jul 03, 2018 |
Am thinking to do just the foundation only instead of foundation and German Floor for a 4 bedroom duplex. Is German Floor compulsory? |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by micgray100(m): 6:56pm On Jul 06, 2018 |
floshady: German floor is over compulsory in a duplex building. Reason.. It prevent any form of seepage of underground water which can destroy laid tiles and wall paints on the long run.. .secondly, it help reduce the weight your foundation will end up carrying especially if you are not building a frame structure.. There are many more advantage.. But don't want to go too technical.. Cos I know how boring it get to non-proffesionals in the building industry.. Call Opaolu for more details.. 1 Like |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Rubbiish(m): 7:47pm On Jul 06, 2018 |
micgray100:How does german floor reduce the weight on foundation sir? Can u be more explicit...thanks 2 Likes |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Nobody: 8:21pm On Jul 07, 2018 |
Thanks for the info brother � 1 Like |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 4:51am On Jul 19, 2018 |
Rubbiish: When you are using a beam and slab Raft foundation, you don't only rely on the beam to carry the load of the building but also on the slab (German floor). Do a practical illustration with your hand. If you want to tumble and you plunge your fingers into the sand with your palm being flat, you would see that what is carrying your weight is mostly your palms not just your fingers that you plunge inside the sand. Likewise the german floor withstands the upward forces from the soil below to make your building stand. This is why the gourd floor slab (german floor) should be at least 200mm even if a 150mm shows adequate in drawing. BUT This does not mean that we don't eliminate the german floor from a storey building. However that has to be done under the design and supervision of a qualified STRUCTURAL Engineer. Don't say I allow it and go to use a civil engineer who is experienced in highways or in water engineering to do that. When my clients don't want a German floor maybe because of cost or other personal reasons, I usually use a special modified foundation that can still achieve the same load carrying capacity. Structural engineering gives us options for safety and economy 1 Like |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 4:53am On Jul 19, 2018 |
shileowo: my number is at my signature footnote |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Rubbiish(m): 6:54am On Jul 20, 2018 |
opalu:Thanks sir for your time. I clearly understand the raft foundation analogy, but what is still not clear to me is d bold part. I though reducing load on foundation ought to be more about downward forces & not really upward forces? |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by darsom: 9:04am On Sep 06, 2018 |
Thank you for the good work on this forum. I know that in the construction of a building, if the german floor is used with a membrane or nylon or cellophane spread to cover the floor before casting it will reduce water getting up greatly. However, if the German floor was done and no nylon was used, is there any remedial action that can be taken after casting has been done |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by sconp: 5:22pm On Sep 06, 2018 |
darsom: opalu: In the quoted post lies your answer. 1 Like |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by darsom: 8:10am On Sep 09, 2018 |
In the quoted post lies your answer.[/quote] Thank you very much for the instructive feedback @Opalu. Going with Option 1 is preferred and my follow up questions are given below; 1. What will be the recommended thickness of the nylon to be used for this special layer of flooring. 2. What thickness of flooring will be advisable. Many thanks. |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 10:03am On Oct 16, 2018 |
darsom: That will be based on the site visitation by the professional to carry it out. There are answers we can't give without seeing the damage with koro koro eyes. |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 5:47am On Nov 26, 2018 |
For all your structural designs and details |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by dubuntu(m): 8:13am On Feb 03, 2019 |
@opalu, I sincerely hope this thread hasn't gone cold because I have a huge interest in building construction and I'll have loads of questions to ask. let me start with these based on the few comments above: * Does a bungalow require a German floor? * Is a German floor the same as a raft foundation? * If a bungalow doesn't require a German floor then how is damping prevented in a bungalow? still on structure * how do you determine the weight of a house so as to know how to distribute that weight along the columns going down? for example, if a house weighs say 100 tons and the soil has a strength of about 1ton/msq then I know I need about 10pillars with footing 1msq each (rough estimate I know). but how do you determine the weight of a house? and then this question I am having a hard time getting satisfactory answer to: # what exactly is a duplex? what's the difference between a duplex and a storey building? are they exclusive or interrelated? thanks in advance |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Obidikejr(m): 11:44pm On Feb 05, 2019 |
opalu: Hello Engr. Concerning C and D. Can I send my email too? I'm in dire need of a estimation template for reference purpose. Currently without employment though |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Chekitaut: 12:48am On Feb 06, 2019 |
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Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 1:57pm On Mar 30, 2019 |
dubuntu: The answer is long. Call me with my number at my signature. |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Themancalleo: 12:36pm On May 11, 2019 |
Hello all. I need advise . My builder used a mixture of 16 mm and 12 mm to form the starter bars and columns . That is for each column he used two 12 mm and Two 16 mm to form the square structure the 16 mm diagonally faces each other also the 12 mm. I have been reading on Naira land and the standard here has been that columns should be done with only 16 mm. I need advise please . The location of the project is umunze and the ground there is hard ground |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 9:42pm On Aug 19, 2019 |
Themancalleo: We would need to test the Building structurally if the project has been plastered. The tests will determine what to do next. But that combination is totally unprofessional. That calls to doubt if your Builder is a graduate of Civil Engineering or Building Technology. These 2 professionals are those who can supervise your building. I am very sure none of them will do such a dirty work of mixing 2 different reinforcement sizes in a column. I wont bore you with the Engineering implications behind that. Until we conduct tests on your columns 1 Like |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Pascopele: 1:37pm On Aug 28, 2019 |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by domack99(m): 2:13pm On Sep 22, 2019 |
Goog day @Opalu. Does the height and load of a building/structure determine the depth of a pile foundation. For instance, after a soil test done and it came out that the solid ground or strata is at 4 ot 5 meters. Is it expected to use 4 or 5 meter depth for a storey building and 5 storey building? Thanks |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 6:53am On Dec 02, 2019 |
domack99: Not at all. The depth of foundation is not only based on the report of the soil test but also based on how heavy the Structure itself is. For instance if the good soil strata is at 2m from the surface, and you want to build 10 storey building, it doesnt mean that you terminate your pile foundation at 2m depth. This is the area of expertise of we Structural Engineer. |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Dennis3D(m): 8:03am On Dec 02, 2019 |
We design and build
|
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 9:56am On Dec 20, 2019 |
Good |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by nas00(m): 9:25am On Apr 29, 2020 |
opalu: Hello Sir. Is it a good idea to start work (foundation laying) on a building site at the peak of the rainy season? I thought it is a better idea to wait for the dry season. Based on your wealth of experience as a professional structural engineer, kindly educate me on the pros and cons Sir Specifically asking because I disagreed with a friend who on this subject. Thank you. |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by Biztech05(m): 1:50pm On Apr 29, 2020 |
Don't just build, do it with BIZTECH CONSULT Contact for more details or request @ Email;Biztech05@yahoo.com Whatsapp;+2347066483964. Checkout with Biztech consult! 1 Like
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Re: Ask All Your Questions On Building Foundations/structural Issues -expert by soonest(f): 10:55am On Jun 17, 2020 |
@opalu, sir pls which granite is best for parapet casting. My builder says to mix half inch and stone dust. Pls any advantage in this as against using only half inch |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 5:41pm On Jul 17, 2020 |
soonest: In Delicate parts of the building like parapet, smaller sizes are better. However on a general note, every concrete deserves to be WELL GRADED meaning that all the sizes are represented. The reason being that when it is vibrated the different sizes find their ways to where they need to be to make the concrete achieve optimal strength 1 Like |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 5:44pm On Jul 17, 2020 |
domack99: The Structural Engineer would carry out the Structural Analysis and from there he will determine the precise type of foundation and the size of foundation to use. Engage the right Structural Engineer that has COREN certification like me. Because that person knows that he is staking his life for all the lives that will be inside that building. So he wont joke with it. |
Re: Ask All Your Questions On Building Foundations/structural Issues -expert by opalu: 7:07am On Jul 22, 2020 |
Let me design and build for you
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Re: Ask All Your Questions On Building Foundations/structural Issues -expert by One4me: 6:15pm On Oct 07, 2020 |
opalu: See as this one dey take sense corner job and people! Simple question, he begin say Professional need to visit. Con-man full this Nigeria sha. Your profession is Soil/Geo Engineer, according to your rofile, when did you become Structural and Building Engineer? Opalu, we dey watch you o. |
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