Architecture + Design: Reinforcement of the floor slab and reinforcement of the formwork

in #hive-1787083 years ago

Reinforcement of the floor slab and reinforcement of the formwork.

Greetings, friends!

It's time to continue the construction of my two-story house, which I talk about in the wonderful Architecture + Design community.

Such an exchange of experience is very useful, because you can see with your own eyes each stage of construction work and will weigh your forces before starting your own construction.

I love to get information from great authors, architects, builders, designers and anyone for whom architecture is a hobby.

This allows me to evaluate my own actions, perhaps to revise some nuances in the further conduct of construction work and to consider new ideas for the design of finishing the house, after the completion of construction.

It is very important to know that there are people who can be asked a question about construction and get a meaningful and complete answer to it.

In a store, you cannot buy it, there, life experience is not for sale! lol.

So, I will continue my story.

As you remember, if you read the previous articles, we prepared the formwork for pouring a monolithic belt, which, like a vice, should compress all levels of the foundation of my house.

But, it was decided to postpone the order of concrete for a while and to mount a floor slab over the vestibule of the basement and, additionally, to strengthen the formwork around the perimeter of the entire house with stiffening ribs.

Reinforcement of the floor slab.

When I, with an engineer, discussed the project of my house, I made a bet that all floor slabs will be of standard sizes, which are produced at factories in Moldova.

These floor slabs are hollow, which means they are light, and they were created taking into account the seismic activity of the region. The norms by which such plates are made were established back in the USSR, when they did not save on materials.

But, I have not provided for one floor slab.

The staircase of my house passed in one light from the basement to the second floor, so it was, according to the project.

I decided to separate the underground part of the house from its aboveground part and the designer, at my request, made changes to the project and calculated the reinforcement of this slab.

As you can see in the photo below, this is not a very simple structure, which required certain metalworking skills to create.

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Never use used building materials, even metal is subject to aging and fatigue.


This solution allowed me to combine, into a single whole, this floor slab, typical floor slabs above the basement room and a reinforced belt along the perimeter of the house.

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I strengthened the overlap by increasing the diameter of the reinforcement, replacing the reinforcement with a diameter of 16 millimeters with a reinforcement with a diameter of 20 millimeters.


It should be noted that these were unforeseen expenses that were not included in my estimate, but, sometimes, you have to make tough decisions.

DSC05827.JPG
Renting telescopic racks is a very unpleasant moment. The most unpleasant thing is that I had to load them into my Renault several times and take them back.


As you can imagine, there was an unforeseen consumption of everything, boards, screws and dowels, concrete, fittings and working hours.

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The concrete columns, which also fell out of the estimate, were a very correct solution and reliable support for this floor slab.


It seemed to me that this job would take at least a week. But, everything was ready in two days.

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Each stage of construction gave me strength and convinced me that there were no impossible tasks, but sometimes it was scary. lol.


Let's move on to the next type of work that had to be done before ordering the delivery of concrete.

Reinforcement of the formwork.

I was worried that the mass of concrete that would pour into the formwork could break it and I decided to strengthen each section of the formwork.

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Contingencies were snowballing.


Now, it's hard for me to say how much a 50x50 mm wooden beam was required, but it would be possible to rebuild a nice arbor from it, that's for sure.

But, I had to cut it and stuff it every meter and more often, onto the longitudinal parts of the formwork.

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Note the knitting wire ties at the bottom of the formwork. This is another consumable that is not dated. initially, calculate the cost of it.


Perhaps you will say that there is an overrun of the timber, but, as they say, walking like that, lol.

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Most of all, I was annoyed by the calls of my workers, asking them to buy more nails and dowels, although, always, I bought with a large supply. But even if the guys took souvenirs for themselves, I was not going to count every nail, I had to get in the car and go to the store to shop.


Many construction projects in this region are conducted without direct access to electricity and water, they have to use generators and bring water in barrels, I thanked God a hundred times for the decision to carry out all communications before the start of construction work.

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Let's take another look at the structure of the reinforced belt and formwork.


In this photo you can see the water tower, which is the source of artesian water for my house.

Many villagers complain that they do not have enough water pressure, but, fortunately, I am the first subscriber and the water pressure is always strong.

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The only drawback is that the water is saturated with hydrogen sulfide and has an unpleasant smell, similar to the smell of rotten eggs, but people quickly get used to it, I calmly drink such water, although, initially, I was very sick of one, only the smell of this water.


I said that the knitting wire with which the boards are sewn is a waste of materials, but this is additional reinforcement of the reinforced concrete belt.

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Each minus has its own wonderful pluses.


You can see a car that delivered telescopic racks and many bags of cement to the construction site. Probably, the French could not imagine that this is possible, lol.

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The maximum load of the trunk of a car is 200 kilograms, but only the French think so.


It was a wonderful, sunny day, white clouds were floating across the sky, but I saw it only by looking at the photographs, I was too busy with calculations, to notice this beauty.

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It is very important, during construction, not to get nervous, to keep cool, but sometimes it doesn’t work, lol.


Продолжение следует!

Enjoy your viewing and reading!

Blessed day to you!


Category:Architecture + Design
Camera:Sony Cyber-shot DSC-HX300
Location:Moldova
Author:@barski Ukraine For my publications, I am not a vikorist stock photography, for me it is fundamentally important to vikoristovuvat for the publication of photography, as I shattered with my hands, and I can name them - author's robots.

2021-01-02-12-19-42.jpg
I hope that once, the windows of my house will emit a light no less bright than this array of residential buildings.


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It was an interesting read, the information that I can get on this construction is very valuable since it helps me better understand the processes of building a house.

Thank you very much! I am very glad that you find something useful in my posts. Blessed day to you!

You're welcome (^_^) and have a nice day ahead.

Work on the structural aspect of your house is definitely moving smoothly. No project is perfect so, once in a while, you might encounter technical hiccups that challenge your timeframe, material availability, labor, and above all, the underlying costs. I'm truly amazed by how completely immersed you are in the construction process, by being on the actual site often, to monitor progress and ensure quality results.

Localities around the world might differ in construction methods. However, from a standard technical perspective and based on your published photos, it appears like the reinforcement bars on the floor slabs and horizontal beams are appropriately spaced in their proper positions. The only elements that concern me though, are the vertical reinforcement bars on the columns. I haven't seen the floor plan and structural drawings thus, I assumed they are columns unless they are something else. Looking at their dimensions, are there supposed to be more vertical steel bars included in them? I can only see 4 of them, one on each corner. Or are those already the ones designed and recommended by your structural engineer?

Thank you very much for your kind words and an excellent question that sheds light on this construction method.
I understand your concerns, and, as I understand it, you are thinking about a different method, when reinforced concrete columns and girders are erected, and then the space between them is filled with foam concrete blocks, aerated concrete, or ceramic blocks.
I gave up on this method. in essence, such walls are like a butter sandwich on which you put sausage.
If you tilt the sandwich, the sausage may slip.
With this method of construction, the joints between the columns and the stone blocks are not airtight, not rigid enough, and do not have reinforced adhesion.
And, in the upper part of the masonry, a gap is formed, which is filled with polyurethane foam.
In such a construction, the walls are not load-bearing.
In my case, everything happens the other way around. First, the walls are built. Every three rows, a steel mesh is laid, which goes inside the reinforcement of the columns. Only after that, the columns are filled with concrete.
Vertical rods are built up as needed, one, two, three floors, as it turns out, lol.
In my house, the load-bearing walls are the walls. columns and girders, everything from the foundation to the ridge of the roof will turn into a single whole. Something like this). Blessed day to you!

I forgot to say that there are 18 columns around the perimeter of my house.

Oh, wonderful! Now I completely understand. Everything is load-bearing including columns, girders (beams), and especially the walls. If that's the case, you are indeed constructing a formidable tank, earthquake-proof bomb shelter, and impressive bunker - under the disguise of a normal house, just kidding, lol. 😁 This new revelation excites me the more as I can't wait to see your project's progress in its later stages. Thank you very much @barski for the clarification. Keep going and we wish you and your team all the best!