Comparative Study Of Framed Structure.pptx

COMPARATIVE STUDY OF FRAMED STRUCTURE “CONSIDERING EARTHQUAKE RESISTANT AND NONEARTHQUAKE RESISTENT DESIGN”

Framed Structure: • Framed structures are the structures having the combination of beam, column and slab to resist the lateral and gravity loads. These structures are usually used to overcome the large moments developing due to the applied loading. • Types: rigid, braced frames • These structures vary in design based on the unpredictable nature, geological properties and type of loading. This unpredictable nature causes disasters of which earthquake are inevitable where in each earthquake need not convert into a disaster. Earthquakes becomes disastrous unless structures are improperly designed.

Methodology :

Architectural Plan

Ground Floor Plan

Slab and Beam Layout

Column and Footing Layout

Salient features:

• Utility of building : Residential building • No of stories: G+3 • Type of construction: R.C.C framed structure • Types of walls: Brick wall • Concrete grade: M20 • All steel grades: Fe415 grade • Bearing capacity of soil:150KN/m2 • Plot area: 374.66sqm • Plinth area: 282.96 sqm • Seismic zone: zone III

Load and their combinations: LOADS: • DL-Dead loads (IS 875: part – 1) • LL-Live loads (IS 875: part – 2) • EQ-Earthquake loads (IS 1893: part – 1) COMBINATIONS: • 1.5( DL + LL) – non earthquake resistant structure • 1.2( DL + LL + EQ) – earthquake resistant structure a) 1.2( DL + LL+ EQ+X ) b) 1.2( DL + LL+ EQ+Z ) c) 1.2( DL + LL+ EQ-X ) d) 1.2( DL + LL+ EQ-Z )

Analysis and design of structure using software: • The analysis and design of structure is carried out using staad.pro V8i which is an acronym for structural analysis and design. • Staad is a structural engineering software product for 3D model generation, analysis and multi material design. • Staad helps in creating a model which can be interpreted in 3D as well, it helps analyzing the structure with respect to various conditions of load, support and also helps to design the structure with different materials i. e, Concrete, Steel, Aluminum etc. • Shows accuracy in results i. e. Shear Force, Bending moment diagram for each and every beam and column of the structure. That you were doing manually. • Shows result for Number of reinforcement used longitudinally, Shear reinforcement. • Helps you to make improvement in structure, section, dimensions. • You can design structure for any type of load i. e. Dead load, Live load, wind load, snow load, area load, floor load etc. • able to design simple beam to sky scraper and analyze whether it will fail at applied load or pass.

Comparison of results : combination of loads Non-Earthquake resistant 1.5 (DL + LL)

Earthquake resistant 1.2 ( DL + LL + EQ+X)

DESIGN OF SLAB : • Slabs are constructed to provide flat surfaces, usually horizontal, in building floors, roofs, bridges, and other types of structures. The slab may be supported by walls, by reinforced concrete beams usually cast monolithically with the slab, by structural steel beams, by columns, or by the ground. • Types: one way slab, two way slab • Methods of design:The finite element analysis The simplified method The equivalent frame method

Load distribution in slabs : • In one way slab load is carried along one direction and slab will bend in one direction i.e., in the direction along its shorter span. • In two way slab load is carried along both directions so as the bending.

Comparing concrete design of Beam No:1 Non-earthquake resistant

Earthquake resistant

Concrete design of Beam No:72 Non-earthquake resistant

Earthquake resistant

Comparing concrete design of Column No: 26 Non-earthquake resistant

Earthquake resistant

Concrete design of Column No: 97 Non-earthquake resistant

Earthquake resistant