Crack Width Calculation Spreadsheet
- Width Calculation Spreadsheet Download Softwares Online
- Width Calculation Spreadsheet Crack Width Calculations
Width Calculation Spreadsheet Crack Width Calculations
Also, construction materials, shoring system design, water retaining structures, crack width calculations, etc.
Width Calculation Spreadsheet Download Softwares Online
Home Spreadsheets Download Softwares Online Footing design Online Beam Design Special Designs How to Calculate Uplift Pressure on Foundations by Prasad Share Uplift pressure is a design load to be considered for the structures constructed below the groundwater table.
Fiasco rpg pdf torrentWhen the depth of the excavation is deeper, the greater the upward pressure applied by the water.
Lets see what the structures that we need to consider the uplift pressure.
The following figure indicates a tank constructed under the ground.
As indicated in the above figure, uplift pressure will be applied to the foundation.
How to Calculate Uplift Force The pressure at a depth h; p P hg Further, this question can be written as P w h Area of the base slab A Uplift Force w h A Factor of Safety Against Uplift Pressure Generally, the factor of safety against uplift is in the range of 1.2 1.5.
Usually, it is kept at 1.2.
The following procedure could be used to check the uplift.
Calculate the uplift force as per the above equation Calculate the weight of the structure.
The weight shall not be the total weight of the structure if stage construction is done without dewatering.
In such situations, part of the structure to be constructed in the first stage shall be considered for the weight calculations.
If dewatering is done until the structure gains its strength, the total weight of the structure could be considered for evaluation of the factor of safety against uplift.
The factor of safety against uplift pressure weight of the structureuplift force 1.2 The base slab should be designed for the pressure applied by the water and soil pressure due to loads from the tank.
Cardfight vanguard area downloadUplift on Basement Floor Slabs Mostly the basement floors are constructed below the groundwater table.
Usually, these slabs are designing for uplift forced applied on the basement slab after the construction only.
If the area to be built is covered with shorings such as sheet pile walls, secant piles, etc.
However, it is required to consider the water pressure on the basement slab during the operations.
Since the basement is fairly deeper, the thicker slab is required to be constructed to bear the applied forces.
In addition, when the basement is deeper, there should an anchoring system to bear the upward force on the basement slab.
When the basement slab is on the rock, it could be supported by the basement rock.
However, in some of the structures, the basement slab and the total structure is supported by pile foundations.
When the basement slab and the superstructures is rested on the rock, rock anchors shall be constructed to bear the upward forces.