Download - PPT on Commerical building
Presentation on seminar topicat
Construction process of commercial building
SUBMITTED TO:-PRIYANKA PANDAYA.K. MATHUR
PERSENTED BY :-LOKESH KUMAR MEENA
Final year (Civil)
•CONSTRUCTION PROCESS OF COMMERCIAL MULTISTORY BUILDING:EXCAVATIONFOUNDATIONCOLUMNCOLUMN FOOTINGBEAMSLABSALIENT FEATURES
EXCAVATIONExcavation is the process by which a part of land is
cleared for the construction process after the surveying
work has been done. It can be done on the ground level
or below the ground level or below the ground level
surface by means of machines like excavators,
bulldozers and sometimes blasting process is also
carried out wherever hard rock is formed.
Particular hazards identified in relation to excavation work include:•The depth of excavation•The presence of water•Exposure to wet weather•Vibration which may increase the potential to collapse
•The presence of existing underground services
•Chemical gases
PLAIN CEMENT CONCRETE
Plain Cement Concrete is a mixture of sand, coarse aggregate, and cement. It is used below the footings of any constructional structure, to make the structure stronger and to resist designed load. The main function of PCC is not to allow ground water to enter the footings.
FOUNDATION :It is that part of a structure which transmits the
weight of the structure to the ground.
The foundation should be designed such that :
the soil below does not fail in shear.The settlement is within the safe limit.
Foundation may be broadly classified into two categories:
1.Shallow foundations2.Pile foundations
SHALLOW
FOUNDATIONS: a shallow foundation transmits the loads to the strata at a shallow depth. If it is laid at a depth equal to or less than its width . Than we consider shallow foundation.
Types of shallow foundation:
•strip foundation•Isolated foundation•Combined foundation•Strap or cantilever foundation•Raft foundation
PILE FOUNDATION:The ground surface is not capable of supporting a structure , deep foundation are required to transfer the loads to strata.
COLUMN
A column is an element used primarily to support axial compressive loads and with a height of at least three times its least lateral Dimension. the strength of a column depends on the strength of the materials, shape and size of the cross section, length and the degree of positional and directional restrains and its ends.
COLUMN FOOTING
The structural unit constructed in masonry or concrete under the base of a wall or a column which distributes the structure load over a large area of ground.
BEAMS
Beams are horizontal structural element that is capable of withstanding load primarily by resisting bending.
SLAB
Slabs are the structural elements usedto cover the open space. They usuallycarry a uniformly distributed load andform the floor or roof of the building.
SALIENT FEATURES
CONCRETE GRADE: M20STEEL GRADE:FE-500 ISBARS ARE USED IN COLUMN:
CIRCULAR COLUMN: 32MMRACTANGULAR COLUMN:25MMBARS USED IN BEAM:32MMBARS USED IN SLAB:16MMMORTAR RATIO:1:1½:3SPACING OF BAR IN SLAB:10MM,8MM