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What is Pile Foundation?

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  What is Pile Foundation? Foundations provide support to the structure, transfers the loads from the structure to the soil. But the layer at which the foundation transfers the load shall have an adequate bearing capacity and suitable settlement characteristics. When to Use Pile Foundation Following are the situations when using a pile foundation system can be }    When the groundwater table is high. }    Heavy and un-uniform loads from superstructure are imposed. }    Other types of foundations are costlier or not feasible. }    When the soil at shallow depth is compressible. }    When there is the possibility of scouring, due to its location near the river bed or seashore, etc. }    When there is a canal or deep drainage systems near the structure. }    When soil excavation is not possible up to the desired depth due to poor soil condition. }    When it becomes impossible to keep the foundation trenches dry by pumping or by any other measure due to heavy inflow of seepage.   Types of
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Design of column footing

  BENDING MOMENT OF COLUMN:- M = BENDING MOMENT P = AXIAL LOAD E = DISTANCE BETWEEN THE CONCENTRATED LOAD AND THE CENTER OF THE COLUMN M = P × E     = 534.855 X 0.050       = 26.74275 KN.M   DESIGN OF FOOTING:- MAXIMUM DESIGN AXIAL LOAD= 534.855 KN DESIGN BENDING MOMENT= 26.74275 KN.M CONCRETE MIX= M20 CHARACTERISTIC STRENGTH OF REINFORCEMENT =550 N/MM 2   SIZE OF COLUMN= 300 MM × 300 MM   SAFE BEARING CAPACITY OF SOIL=100 KN/M 2 (ASSUMED)   SO, GIVEN COLUMN AXIAL LOAD= 534.855 KN ADD 10% FOR SELF-WEIGHT= 53.4855 KN TOTAL= 588.3405 KN     AREA REQUIRED :-   (TOTAL LOAD / S.B.C)                               = (588.3405 / 100)                               =5.8834 M 2 AGAIN, WE INCREASE 10% FOR MOMENT AREA   REQUIRED = 1.10 X 5.8834                          = 6.4717455 M 2 IF WIDTH B,   B 2   = 6.4717455   M 2                            = > B = 2.55 M   LET US TRY, WITH A SQURE FOOTING OF SIZE 2.6 M X 2.6 M P MAX
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How to calculate Load on Column | TECHCRAFT.IN | COLUMN LOAD | DEAD LOAD | LIVE LOAD | SLAB LOAD

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  LOADS ACTING ON COLUMN & ITS FOUNDATION:- We have many types loads on the footings (1st and 2nd are commonly considered in small building's). 1.  Dead loads Actual Loads/Self Loads  (The Actual loads of building's members which is transferred through columns to footings) Super-imposed Loads  (The loads which are exerted by materials which are used to keep the footings covered/hidden under the ground. E.g. Plaster, soil etc...) 2. Live loads The maximum loads that are probably available at some time at the building. It would not be or necessary to be, always. But we are considering them to have a capacity for maximum loading/using circumstance. 3. Seismic Loads Which are: Wind loads Other seismic loads (e.g. Thermal, waves etc...) 4. Soil's lateral loads Dry soil lateral loads (Which is exerted into an angle) Saturated  soil loads (Which is exerted near to perpendicular) 5. Snow & Rain Loads DENSITY OF STEEL – 7750 KG/CU.M DENSITY OF CONCRETE – 2500   KG/CU.M
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Location: West Bengal, India
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