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5 structural problems of buildings and houses

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khunwan
5 structural problems of buildings and houses

5 structural problems of buildings and houses

 

  1. How many piles of house building บริษัทรับสร้างบ้าน problems are there? and how to choose

General piles can be divided into two main types, which are hammer piles and bored piles. (For other special piles such as Micro Pile, if not an engineer is unlikely to be interested) Bored piles and bored piles can be divided into two types, which summarizes how they work. And the good and bad points should be summarized briefly as follows:

  1. Common piles have different functions. They are available in square, hexagonal and I-shaped forms, most of which have a ton cross-section. When nailed, it is easily nailed down. as we commonly see
  2. Hollow round piles It is a pile that can bear more strength than the first type of pile in the same amount of concrete because it can be made bigger. Produced by spinning the concrete to make the piles round and hollow. Most of the time when hammering, dig a hole first and press the pile into it. When it reaches the desired level, it will start hammering. causing less part of the pile to replace the land (The soil has been partially dug out.) Adjacent buildings suffer less from soil movement (but the noise, dust and vibrations remain).
  3. Dry bored piles It is a small pile drilling system. Most of them are about 20 meters deep (depending on the sand level) and can bear the weight of not more than 120 tons per plant. The method is to drill the soil down (dry form) and then drop the steel and pour concrete into the hole. The price will be more expensive than the hammer system. But the pollution is much less. both about the movement of soil Vibration and dust are commonly used in densely populated places.
  4. Wet bored piles made like dry piles But when digging the soil will dig deep. Then add chemicals to coat the drilled soil pit to act as a soil binder. and keep the soil from collapsing when drilling deeply which can penetrate deeper than 70 meters), can bear a lot of weight and cause less pollution, but expensive.

As for choosing which pile to use, which is good. Must notice and know the problem first. and compare the necessity and the possibilities of each system in each job By adhering to the following principles in consideration

(a) price

(b) neighboring houses (pollution)

(c) Possibility of being transported to the agency

(d) time (both working hours and waiting time)

In choosing this pile system Have to ask the engineer to design piles and foundations in several types to see (not more than 3 types, because you have to be considerate of your engineers). especially the cost and time of piles and foundations. therefore can be used as a conclusion Avoid cheap piles and do it fast. But do not let expensive and delayed foundations. This will delay the entire project.

 

  1. Tiger cement, elephant cement, cobra cement, bad use may get bitten by a snake... The tiger took over to eat!

Most people don't care that there are 2 types of construction cement in general. The first type is called Portland Cement, such as Elephant Seal, Naga Seal, and Dok Chick Brand, which are used to make structures. It has higher compressive strength and is stronger than type 2 cement, also known as Silica Cement, such as Tiger, Cobra, Eagle, which has less compressive strength. will be used for masonry or plastering work only

Most engineers calculate the structure using Portland Cement compressive strength standards. When actually doing it, if the builder uses Silica Cement, which is less strong. Your home structure will not be strong.

So before construction Should check or ask the designer a bit what type of cement to use. But now precast concrete is more popular. They mix cement, sand, stone from the factory. to use the structure If it's a babe, it's good enough to be reliable. but if it is a large building รับสร้างบ้าน must also check the quality of the finished cement from the delivery invoice To ensure that the delivered concrete is as strong as your engineer calculated.

 

  1. Caution, Caution... A kind contractor will give you too much concrete!

in all the outbursts The structural developers have designed the concrete floor to be thick enough. Don't let the contractor pour the concrete slab thicker than the specified size with kindness. (or mistake) and tell you that “Stronger” because that can cause your building to collapse. Because concrete is a very heavy material, 1 cubic meter weighs 2,400 kilograms. If he pours concrete only 5 centimeters thick, it is the weight that the structure must support up to 2,400 X 0.05 = 120 kilograms. Residential houses are designed to support the weight of only 150 kg per square meter. When the weight is increased unnecessarily by 120 kg, then the strength that the structure will gain is only 150 - 120 = 30 kg. our homegrown opportunity including other structures There is a chance of cracking or damage.

 

  1. We warned you... If you have a house, don't make an underground water tank!!!

If there really is no need (The necessity here means you don't have enough land to place a bucket of water on it. Or you really can't stand the ugliness of the water tank on the ground). You'll never know until the water bill from the waterworks arrives.

(The water tank must have an underground overflow drain. (When the water overflows, it flows directly into the sewer.) The breakage of the water tank or the rupture of the water pipe can be caused by a number of reasons, for example, the structure of the water tank is most often separated from the building. And the structure of the water tank often uses a needle shorter than the building. The subsidence is not the same. causing tearing and erosion Or if there is construction nearby that creates vibrations or causes the soil to flow (or compact) your water tank will easily fail.

In addition, the maintenance of underground water tanks is difficult. And it can be dangerous when flooded if the protective cap is bad or damaged. Dirty water will flow into the water tank. In addition, underground water tanks are more expensive than ground water tanks.

 

  1. What is a “banana leaf”?

Banana sheath is a technical term. There are two meanings as follows:

1.It is the name of the roof tile that is curved almost a semicircle like the sheath of a banana tree. (Roof tiles have many characteristics such as double corrugated, single corrugated, small corrugated, flat sheets, etc.)

  1. It is the name of a kind of wall tile. For being the corner of the 2 tiles that collide often used in swimming pools for easy cleaning

 

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