Is 1893 Code Book Free Download

IS 1893 ( Part 1 ) : 20{)2a) If the building does not have closely-spacedmodes, then the peak response quantity( k ) due to all modes considered shall beobtained ask = Absolute value of quantity in mode k, andr = Number of modes being consideredb) If the building has a few closely-spaced modes( see 3.2), then the peak response quantity( k ) due to these modes shall be obtainedaswhere the summation is for the closely-spaced modesonly This peak response quantity due to the closelyspaced modes ( L ) is then combined with those ofthe remaining well-separated modes by the methoddescribed in 7.8.4.4 (a).7.8.4.5 Buildings with regular, or nominally irregyla{plan configurations may be modelled as a system ofnm.ses lumped at the floor levels with each mass havingone degree of freedom, that of lateral displacementin the direction under considerationGeneral destruction of buildingi) Many buildings of Type C suffer damageof Grade 4, and a few of Grade 5Create a clipboard You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later!IS 1893( Part 1 ) :2002&railway linesFurthermore, a large number of slight cracks inground; falls of rock, many land slidesand earth flows; large waves in water.Dry wells renew their flow and existingwells dry up.10rivers

Some times dry springs havetheir flow resorted and existing springsstop flowingMemorials andmonuments move and twistThe basic zonefiwtorsincluded in this standard are reasonable estimateof effective peak ground acceleration.3.34 Zero Period Acceleration ( ZPA )It is the value of acceleration response spectrum forperiod below 0.03 s ( frequencies above 33 Hz).-,.4 TERMINOLOGY FOR EARTHQUAKEENGINEERING OF BUILDINGS4.1 For the purpose of earthquake resistant designofbuildings in this standard, the following definitionsshall apply.4.2 BaseIt is the level at which inertia forces generated in thestrnctnre are transferred to the foundation, which thentransfers these forces to the ground.9 10Damage in few buildings of Type Ais of Grade 2.iii) In few cases, cracks up to widths of1cm possible in wet ground in mountainsoccasional landslips: change in flow ofsprings and in level of well water areobserved.7Where tis less than , allthe response quantities (for example memberforces,displacements, storey forces, storey shears and basereactions) shall be multiplied by / V.7.8.2.1 The value of damping for buildings maybetakenas 2 and 5 percentof the critical,forthepurposesof dynamic analysis of steel and reinforced concretebuildings, respectively.7.8.3 TimeHistory MethodTime history method of analysis, when used, shallbe based on an appropriate ground motion and shallbe performed using accepted principles of dynamics.7.8.4 Response Spectrum MethodResponse spectrum method of analysis shall beperformed using the design spectrum specified in 6.4.2,or by a site-specific design spectrum mentionedin 6.4.6.7.8.4.1 Free Ebration AnalysisUndamped free vibration analysis of the entire25IS 1893( Part 1 ): 2002buildingshall be petiormedasperestablishedmethodsofmechanicsusing the appropriatemasses and elasticstiffness of the structural system, to obtain naturalperiods(T) and mode shapes {$} ofthose of its modesof vibration that need to be considered as per 7.8.4.2.7.8.4.2 Modes to be consideredThe number of modes to be used in the analysis shouldbe such that the sum total of modal masses of all modesconsidered is at least 90 percent of the total seismicmass and missing mass correction beyond 33 percent.If modes with natural frequency beyond33 Hz are tobe considered, modal combination shall be carried outonly for modes upto 33 HzSIMILAR ITEMS (based on metadata) Global Public Safety Codes 1,965 2.0K IS 1893 (Part 4): Criteria for Earthquake Resistant Design of Structures, Part 4: Industrial Structures Including Stack-Like Structures Jan 8, 2013 01/13 by Bureau of Indian Standards (BIS) texts eye 1,965 favorite 0 comment 0 Global Public Safety Codes 833 833 IS 1893: Criteria for Earthquake Resistant Design of Structures (Fourth Revision) Jan 8, 2013 01/13 by Bureau of Indian Standards (BIS) texts eye 833 favorite 0 comment 0 Global Public Safety Codes 4,492 4.5K IS 875 (Part 1): Code of Practice for Design Loads (Other Than Earthquake) For Buildings and StructuresTheintensity of the earthquake requires tobe investigated specially.ANNEX E( Foreword)ZONE FACTORS FOR SOME IMPORTANT TOWNSTownAgraAhmedabadAjmerAllahabadAhnoraAmbalaArnritsarAsansolAurangabadBahraichBangaloreBarauniBareillyBelgaumBhatindaBhilaiBhopalBhubaneswarBlmjBijapurBikanerBokaroBulandshahrBurdwanCailcutChandigarhChcnnaiZone Zone Facto Public clipboards featuring this slide No public clipboards found for this slide Save the most important slides with Clipping Clipping is a handy way to collect and organize the most important slides from a presentation

These were covered in thesecond revision of 1S 1893 brought out in 1970.As a result of the increased use of the standard, considerable amount of suggestions were received for modifyingsome of the provisions of the standard and, therefore, third revision of the standard was brought out in 1975.The following changes were incorporated in the third revision:a)b)c)d)e)8The standard incorporated seismic zone factors (previously given as multiplying factors in the secondrevision ) on a more rational basis.Importance factors were introduced to account for the varying degrees of importance for variousstructures.In the clauses for design of multi-storeyed buildings, the coefficient of flexibility was given in theform of a curve with respect to period of buildings.A more rational formula was used to combine modal shear forces.New clauses were introduced for determination of hydrodynamic pressures in elevated tanks.Clauses on concrete and masonry dams were modified, taking into account their dynamic behavionrduring earthquakesSee our User Agreement and Privacy PolicyFEMA 222,FederalEmergencyManagement Agency,WashingtO%D.C., U.S.A., January 1992.c) NEHRP 1991, NEHRP Recommended Provisions for the Development of Seismic Regulations for NewBuildings, Part 2: Commentary, Report NoIn highly seismic areas, construction of a typewhich entails heay debris and consequent loss of life and property, such as masonry, particularly mud masonryand rubble masonry, should preferably be avoidedThis floor motion timehistory is obtained by an analysis of multi-storeybuilding for appropriate material damping valuessubjected to a specified earthquake motion at the baseof structure.3.13 FocusThe originating earthquake source ofthe elastic wavesinside the earth which cause shaking of ground dueto earthquake.3.14 Importance Factor (1)It is a factor used to obtain the design seismic forcedepending on the functional use of the structure,characterised by hazardous consequences of its failure,its post-earthquake functional need, historic value,or economic importance.3.15 Intensity of EarthquakeThe intensity of an earthquake at a place is a measureof the strength of shaking during the earthquake, andis indicated by a number according to the modifiedMercalli Scale or M.S.KSelect another clipboard Looks like youve clipped this slide to alreadyFor guidance onearthquake resistant construction of buildings,reference may be made to the following IndianStandards:IS 4326,1S 13827,IS 13828,IS 13920and IS 13935.2 REFERENCES2.1 The following Indian Standards are necessaryadjuncts to this standard:Is No.456:2000800:1984875(Part l): 1987(Part 2):1987(Part 3):1987(Part4 ):1987(Part 5):1987TitleCode of practice for plain andreinforced concrete ( fourthrevision )Code of practice for generalconstruction in steel ( secondrevision )Code of practice for design loads(other than earthquake ) forbuildingsand structures:Dead loads Unit weights ofbuilding material and storedmaterials( second revision)Imposed loads ( second revision)Wind loads ( second revision)Snow loads ( second revision)Special loads and load combinations( second revision)IS No.1343:19801498:19701888:19821893 (Part4)2131:19812809:19722810:19794326:19936403:198113827:199313828:199313920:199313935:1993TitleCode of practice for pre-stressedconcrete (first revision )Classification and identification ofsoils for general engineeringpurposes (first revision )Method of load test on soils (secondrevision )Criteria for earthquake resistantdesign of structures: Part 4 Industrialstructures including stack likestructuresMethod of standard penetration testfor soils (first revision )Glossary of terms and symbolsrelating to soil engineering ( jirstrevision )Glossary of terms relating to soildynamics (fzrst revision)Earthquake resistant design andconstruction of buildings Codeof practice ( second revision )Code of practice for determinationof bearing capacity of shallowfoundations (first revision )Improving earthquake resistance ofearthen buildings GuidelinesImproving earthquake resistance oflow strength masonry buildings GuidelinesDuctile detailing of reinforcedconcrete structures subjected toseismic forces Code of practiceRepair and seismic strengthening ofbuildings GuidelinesSP 6 ( 6 ) :1972 Handbook for structural engineers:Application of plastic theory indesign of steel structures7PrT-!? 8 3c092786bf

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