Pile Cap Là Gì
Basically, a pile cap is a thick concrete mat. This mat can be found on concrete or timber piles & those piles are driven into the unstable ground, or soft ground, lớn create a stable foundation. The concrete pile cap will then distribute the entire load of the building.
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The dimensions of the pile caps are determined by the loads and the arrangement of the connections of the structure và the foundation. The shape of the pile cap is determined by the number of piles within the group & the spacing between each one of the piles.
The depth of the pile cap has a number of determining factors as well. Those factors include the punching shear, the pile anchorage, the shrinkage và swelling of the soil, the amount of frost, & the groundwater table.
Pile caps also use secondary reinforcements, so the piles bởi not move outward from each one of the caps. One of the secondary reinforcements is at the bottom of the pile cap and runs around the longitudinal reinforcement. The other is changing the direction at the head of the piles.
One of the best ways to design pile caps is in SAFE, which is an excellent kiến thiết tool. There are six steps to lớn designing pile caps in SAFE, which is not too many considering the importance of the caps.
The six steps of designing pile caps in SAFE:
Determine the column and wall load assignmentIn order khổng lồ create pile caps, you must know what is needed for the foundation. That means that you must know where the columns và walls will be located and where you need the load for each of them khổng lồ be. While you can vì chưng this all manually, it is always best to use a 3 chiều analysis model. This information can then be imported into SAFE, so you can see all the different vertical and lateral forces. This will ensure that you know where all the dead loads & live loads are located and where pile caps will be needed.
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It is easy to mã sản phẩm the pile caps in SAFE, especially if you utilize the dxf importing feature. If you choose to vì this manually in SAFE, it will take much longer.
Run analysis & designAs soon as you have completed the pile cap modeling, you will need khổng lồ mark the x’s and y’s when it comes khổng lồ directions. After that, you can finally run an analysis and design for review.
Reviewing the analysisWhen you are reviewing your analysis, you will want to keep an eye out for any anomalies from what was created with your soil report.
Interpret all your resultsThe reinforcement results will show you where the pile caps need khổng lồ be, as well as where the strip forces will be needed. The slab strip thiết kế will also show where reinforcement is needed near the rebar.
If you have never done pile caps before, you must know the three most common shapes. The first is triangular, which is for three piles. Six or seven piles will need a hexagonal pile cap, while a rectangular pile cap is used for all other numbers of piles.
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When it comes to lớn pile diameters and the depth of the pile cap, please kiểm tra out the numbers below:
Pile Diameters in mm Depth of Pile Caps in mm
300 700
350 800
400 900
450 1,000
500 1,100
550 1,200
600 1,400
750 1,800
Pile caps can be very helpful in keeping buildings more stable than they would be without them. So, when you are constructing newer buildings, or renovating older buildings, you are going to lớn want khổng lồ utilize pile caps to lớn ensure that the building is as stable as it can possibly be.
