₦airaland Forum

Beulah09:
Which type of Natural Disaster? When there is a NATURAL DISASTER it will NOT be an ISOLATED case!

This is either a design issue or poor construction methods. Whatever it is, the engineer that designed/supervise the construction is liable. He has based on his professional judgement agree that the building is SAFE! Now that it is not SAFE he definitely has a case to answer.

I will definitely agree with you sir. The failure is most likely due to any of those factors or the combination of those two factors.

I the construction were based on his designs, he is liable

Uberness:
Doing a project in my hometown.
The drawing was first of all produced by an experienced consultant architect who advised that the foundation and decking stages be supervised by a structural engr. who is also an experienced consultant. I paid dearly for each of his site visits but not with pain.
He traced all the rods one by one with a stick like an village headmaster to make sure that all meets specification and standard and doesn't care about any delay his meticulousness will cause.
My builder dreaded any of his site visits because after he visits , there will be more rods to be changed, or included, or even redone which means builder will spend extra on iron bender as labor was contracted to Builder.
My instruction was that: the structural Engr. gives final go ahead before any concrete is poured during Foundation & Decking.
On my own side i was happy and didn't mind, i'm still in contact with the elder statesman for a job well done.

An experienced architect should not do all the drawings ( structural drawings) should be left to people who understand it, people who has been certify to carried them out.
Electrical design for bigger building should be done by an electrical engineer.

Structural failure is a combination of so many factors that people who are not conversant with soil behavior and structural behavior may not understand.
Stability of structures depend on sound knowledge of soil engineering properties which can only be gotten through extensive and detail soil text. It also depends on good structural design done according to codes.

mavverick:
abdulwastecx

You always talk a lot of sense as usual.
How about cases whereby structural drawing done, calculations done, everything done but yet the executors on the ground decide to do something different to spite the owner etc.

Speaking from experience, I once had a situation where even with the plans/everything what was requested was not what was done, and in that situation, I invited my architect to site, when builder saw architect he started having cold feet and said that I wanted to shift him out of the project by calling Architect to inspect site.

What do you do in a situation like that ?

That is a very important question sir. Heavy structural work should always a registered structural engineer (civil engineer) coming to site from milestone to milestone to check progress of work and making sure what was designed is followed properly.

brabus:
abdulwastecx,

On such a project, how do you think the active role of the Consultants (Structural, Civil, Mechanical and Electrical) can help in prevent a major failure? You'll agree such a project will definitely have consultants.

The problem is how many of the so called structural engineer understand structural analysis and design?

I am a civil engineering graduate that has been taught by PhD orders and registered engineers, most of which can not do simple manual structural analysis such as continues beams, folded plate, shear failure in slope, etc. Civil engineering/ structure involve lot of mathematics, if you don't understand maths no matter your degree and accreditation you may not understand the basis of design

The problem is most of the consultancy film uses softwares that they don't really know how they work or copy drawings without proper design etc.

Soil is very important, so how many project have a detail soil analysis?.
How competent are these analysis?
Are they carried out with the correct instruments and precautions?
How competent are the people carrying out these investigation etc?

Building construction is a complex trade that you keep learning everyday to be better and you try as much as possible to do something that will not kill you or kill other and may not land you in jail

brabus:
@ abdulwastecx, I just feel I should ask you this question. Who do you think is culpable in this issue?


I see a lot of people blame the builder, the engineer. I don't have anything against them. That's how much they understood about project management. They have little or no idea on how to handle complex structures. So it's fair to assume the builder is the man to blame just as the developer and Jack Baeur is blaming the engineer.
But the truth be told, MDUs/MTU projects is more than a one-man show or selling of spare parts. It's not a chicken coop project.

FYI, it's only the governor who approves construction of MTUs in Lagos state.

Your thought on this will be highly appreciated.

From the picture from the collapsed structure, the failure is a structural failure of the superstructure ( ground floor). Super structure failure may be due to under reinforcement, inadequate section of structural members, poor construction techniques etc.

From the above, the major blame will falls on the structural engineers to show his design calculation and all is assumptions, if physical and laboratory investigation of the debris, failed concrete section and steel from scene of the collapsed building . Their sizes noted and compared to what was specify by the engineers. If the results conform to his design, then he is to be blame. If those results are different from his designs then the blame will be on the contractors.

Government also play a role to make sure that structures are properly built to conform with lay down codes in other safe life and property of the general public .

Aventures:
lekki gardens structure collapse, it is quite unfortunate. May the soul of the victims rest in peace and God will grant their family and loved ones fortitude to bear the loss.

A wake up call to everyone. Some packagers are blabbing all manners of building terms they are not even practicing themselves all over social media, so happy about unfortunate incident that claims life and can as well rendered so many people jobless eventually. The jobless one can turn to kidnapper tomorrow and kidnap you for ransome in order to survive.

Yes it very right to say the truth, not only Lekki Gardens are doing such a shuddy job, they are the thief caught today. Prime waters was raining some times ago, but when they had their own cup of tea at Panti area of Lagos, multistorey whort a billion colapse without casualties they learn their lesson. Mike Adenuga GLO house also has it's own share of collapse during construction at Challenge in ibadan, almost on a rocky land, is that a lekki or Ajah Land?. Synagogue structure that collapse was it built on Lekki- Ajah land.

In a situation like this our presentation matters a lot. Before you remove a spec in someone eye please remove the log in your own eyes.

Natural disaster, can only be tamed by God and No technology per say. May God always keep us save. Amen

Structural collapse can be as result of factors unpredictable ( higher magnitude earthquake above the level allowed for during the design stage,) liquidification of the foundation, volcanic eruption etc.

Structural failure can also result from lack of proper understanding of soil property like bearing capacity, settlement rate, shear stress, soil classification etc.

It may also results from lack of proper analysis and design of structural members of the building

It may also result from poor construction techniques etc.

Structural failure can happen to any developer irrespective of been a professional or quack

Chekitaut:
Many are still coming down. Imagine houses built beside water(not just water Atlantic ooo) and close by you have a dredging site mopping sand under it. If money is to be spent go to Ikotun pay each land lord to leave, if you like biuild that building in babylon na u sabi.

You can build anywhere provided proper engineering principles are followed.

If you build high rise building in ikotun without adequate soil analysis, good structural analysis considering all the load and some environmental conditions you will still experienced structural failure.

Geotechnical and structural engineers are not magicians they undergo training in the use of mathematical principle, materials properties and economy to evaluate the suitability of soil for engineering construction and the capacity of each members that can be use to build a house or other structure that will be save for the occupancy or general public to use.

Most design are done using limit state ( Ultimate and serviceability).

When you build high rise building without proper soil analysis ( which may cost less than 1% of project sum) you are playing with people's life

If you build any building higher than a Bungalow without proper structural analysis and design (always ask for the calculations sheet to be examined by different person) you are playing with people's life.

When you build without building codes and lay down designs (you are playing with life)

fairheven:
But seriously in this age and time, the world is talking about renewable energy, not coal that will do more harm to the environment.

That is our problem my friend... Renewable energy from water, solar and air are far more expensive than fossil fuels like coal, gas etc. We need thousands of megawatts to have stable electricity and strong industrial base, so we need to look into areas where we have comparative advantage.

United States generate more 60% of their power from coal despite been one off the most industrialized country on earth, China, Brazil etc all generate alot from themes dirty sources.

In fact, Africa as a continent emit less than 5% green house gasses, so why spend ten terms when we have cheaper alternative. What we need now is 120*thousand megawatts of electricity from the cheaper sources possible, when we have that we can start talking about investing and researching on more environmentally friendly alternative

chukel:
What is nice about this development. Taking natural resources from the south and developing the North and west? If the source of gas for his refinery is in akwaibom, y set up the refinery in lagos abi na ogun.

My friend that is capitalism for you. The market is the major determinant of location of industry, the demand is the key. These are men investing their money on productive ventures not some government elephant project.

I visited a Mable film in onitsha (anambra) some weeks ago... The raw materials for such maples were imported from ondo state. It doesn't really make financial sense to the man we went their together, he was of the opinion that the man could have set up the factory in ondo and then bring in the finished product to anambra.

elopee3000:
so u mean they will take coal from enugu and use it to power kano state u people re kidding why don't they use deserts sand or fulani cow shit to power thier light in the north

My friend there are coal deposit in so many northern state like Nassarawa, kogi, zamfara etc. It is a good iniatives to invest in Coal thermal station.

Investment in power will be a very profitable venture in South eastern Nigeria, city like onitsha, nnewi, aba etc will provide a huge market because of her large middle income class

spyder880:
Sorry about this, people are generally lazy and tend to pirate other people's intellectual rights in this country. But don't relent to help people or share your knowledge, the good you do surpasses the evils they do. Keep the good work going bro.

Thank you sir

3strike:
I

Interesting! Anyone know how much rent goes for in dawaki area tho?...Abdul am sure raft foundation is not necessary for most builds in Abuja.....is that righ?....pls skol me

Yes sir oga

segzy14:
How much is rent for one,two and three bedroom in these location?

In suleja
Back of sarafina along Sulaiman barrau way
One bedroom goes for N150,000

Two bedroom for around N250,000

With 24 hours water supply and considerably stable electricity.
The area is 45 minutes drive from Abuja city center of Abuja kaduna road
A 50ft x 100ft land goes for around 1. 5million in this area

segzy14:
Kubwa is a good place for investment but the cost of land there, na die.

Suleja is a better place for low income investment, land cost is relatively low and no problem of future demolishion because of Master plan.

Tafa local government along kaduna Abuja road is also a very good place to invest considering the new railway and the express way.

iamkeyz:
see jonzing o
no evidence yet you claim the man kill im papa?
brown envelope journalism at its best
pure junk

This thing happen in akpom village area close to aforigwe igwe market Junction... I was at the scene

segzy14:
Dawaki is around gwarinpa area, it is before kubwa and before dutse when coming from town, it is a good area for real estate but it all depends on what u wanna build @ 3strike.

I know kamtampe one that axis.. Once work with Japtech construction company a real estate company along that area. There are many real estate work going on in that area but most of the houses are the same are for very end people I remember each house going for 60 million as far back 2011.

brabus:
Interesting! You're lucky you found that out. One of the leading real estate firm in Nigeria (with over 20,000 units of residential apartment built in Lagos) organized a training for all their registered contractors and they used one of my works on Nairaland (2012 Detached Duplexes) for the training even to the extent of showing my car in their presentation.

One of the attendees informed 2 months after me but it was too late.
____
As one of the early author on Nigeria Property Centre, I cannot count the number of my works that has been reproduced without written permission by all this funny bloggers.

I think the best thing to do is to reference me or write a written permission

I bumped into a block named 'alistdevelopers. . Com. The blogger is a registered architect (according to him). 100% of his write up are my write up here on nairaland property section ( proper analysis of design and cost of a foundation for bungalows). He copied all my work world by world without referencing me.

Mayor78:
Abdul, Are the calculations above from a textbook such that they are repeated exactly in this blog http://alistdevelopers..ie/ Or are you the same company as alistdevelopers? I wouldn't want to believe that somebody is plagiarising here. I really detest plagiarism. It can be classified among cheating's' of the highest order. The integrity of any professional engaging in them creates ambiguous credibility concern. Please clarify. Thanks.

The Guy copied my work here and some of my pictures ( some of the work I executed in Port Harcourt) all without referencing me. If not for your comment I will not even know about it

Mayor78:
Abdul, Are the calculations above from a textbook such that they are repeated exactly in this blog http://alistdevelopers..ie/ Or are you the same company as alistdevelopers? I wouldn't want to believe that somebody is plagiarising here. I really detest plagiarism. It can be classified among cheating's' of the highest order. The integrity of any professional engaging in them creates ambiguous credibility concern. Please clarify. Thanks.

I just checked the website, it is very clear that the said architect copied my work. All his post were in January 2016 while I started this in April 2015. He copied everything I wrote on this thread world for world without referencing me

3strike:
Just added ur # on whatsapp bro. Btw what do you think about Dawaki area (real estate)in Abuja? Is it growing rapidly and does it have good prospect? Or are there other areas with good prospect base on speculations?

Regards
3strikes!!!

I don't really know that area sir.. . Where is the location?

I know of one merry bells in kiri

Mayor78:
Abdul, Are the calculations above from a textbook such that they are repeated exactly in this blog http://alistdevelopers..ie/ Or are you the same company as alistdevelopers? I wouldn't want to believe that somebody is plagiarising here. I really detest plagiarism. It can be classified among cheating's' of the highest order. The integrity of any professional engaging in them creates ambiguous credibility concern. Please clarify. Thanks.

I don't think there is issue of plagiarism here, I have been doing this calculation for some times now

Mayor78:
Abdul, Are the calculations above from a textbook such that they are repeated exactly in this blog http://alistdevelopers..ie/ Or are you the same company as alistdevelopers? I wouldn't want to believe that somebody is plagiarising here. I really detest plagiarism. It can be classified among cheating's' of the highest order. The integrity of any professional engaging in them creates ambiguous credibility concern. Please clarify. Thanks.

I don't even know the block you are talking about.

This is are volume calculations and any one can easily do it.

The miss ratio calculation using volume is comon among builders, the density of cement, and all other aggregates are in all the publications

Mayor78:
Barka da aiki Mallam, mu na godia da ilimi da kake nunamamu. Allah akawo chingaba duka mmu.

Amin

3strike:
Abdulwastecx,

What part of the country are you based and how affordable are your charges? Lets see if we can do one or two things together....

Regards
3strikes!!!

Thank you sir.
I am based in Abuja but very mobile.
My services are very affordable sir.... Thanks

mufutau55:
Arriba, my friend. This is what I call perfection. Keep it rolling...

Hajji M.

Thank you sir

EgunMogaji:
Getting ready for the pillars and lintel on the padlock garage chicken coop bungalow

House should be at roofing level by Wednesday. I caused the delays due to my indecision.

I can see the lintel is not ringed round the building?

EgunMogaji:
Absolutely wonderful questions and thought provoking. I'm elated that you took the time to check this out, thanks.

The courtyard will not have a roof over it at all but will have a curved stainless steel open grid cover that has 12X12 holes. It will have maximum opening without allowing anyone to pass through.

The roof will be a combination 4 sided hip roof, with little overhangs.

The courtyard will be indeed be at the same level as the house and with plumbing.

There will be laterite filling to the german floor level (after the german floor is poured - as I'm pacing myself financially until I get home in two weeks). The remaining 4 inches will be taken up by fine sand.

I am waiting to get home to work hand in hand with a plumber to make sure that the plumbing is exact to my standard (quality of material as well as grade, direction of travel and exit point).

Additionally the roof edge in the courtyard area will also have rain gutters all the way around so the only water will be the direct rainfall. It is intended for the courtyard to be dry as a baby butt. The two or three trees in there will also soak up moisture like a vampire sucking blood..

There's a separate safe room in the building with a hidden external door.

Thank you.

PS: The garage depicted has since been abandoned due to the height of the foundation and has turned into a guest suite and expanded the existing multi purpose playroom.

The dimensions of the courtyard and the hight of the roof may not allow enough air into that space. Their is a formula to calculate wind speed into an open courtyard.

The root of the tree in the courtyard may also affects your foundation (depending on the type of tree though). Soaking off moisture from a cohesive soil leads to contraction in expansive clay.

The roof drain will have to be taken down and drain out of the building either through an open drain that will go through one side of the house or through an underground circular pvc pipe ( the open drain is preferable because of mentainace and possible blockage).

Onuokwu:
I like. These are obviously workmen skilled in their craft/trade. @Prof, I trust these are locals? Should put a stop to all that "cotonou/togo workmen are better" brouhaha.

I believe in made in Nigeria my oga.
These are guys I know very well, I know where they reside, their families etc. These are young men some of which are undergraduate, they learn their trade for some years through parent or relatives and they are very good. They work hard and easily head to correction when they are wrong.

Plastering, Block laying etc are skills can be mastered by patients and hardwork

Onuokwu:
@bolded. I agree. As long as they chose it out of interest. In the last two months, i have run into 2 female mechanics, one of them was under apprenticeship of her father. In past, people would have asked the man if his head was correct.

That is great.. My daughter will learn any of the aforementioned trade

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