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Two mark questions. principle. MayAune 2013, 2008, page no.8 Differentiate free and forced vibration. Mayfiune 20t3, page no,7 J. Distinguish between static and dynamic loading. NovlDec 2007, page no.5 4. What is logarithmic decrement? Nov/Dec 2007 , page no.5 5. Define equivalent viscous damping. May/June 2009, page no,8 6. Write a short note on earthquake excitation. Miry/June 2009 , page no.9 7. Explain Frequency Ratio. Noy/Dec 20t2 , page ro.2 8. Explain Critical Damping. Noy/Dec 2012, page no.8 9. Define viscous damping. Nov/Dec20lI, page no,8 10. Define magnification factor, Nov/Dec 2011, page no.s 1 1. What is meant by frequency response curve for damped system? Nov/Dec StatE D'Alembert's

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, Sixte6n marks questions

1. A mass of one kg is suspended by a spring having

a stiffrress

of 600 N/m. The mass is displaced

2.

3

.

An SDOF system consists .of a mass of 20 kg, a spring stiffness 2200 N/mand a dashpot with a damping coefficient of 60 N-s/m is subjected to a harmonic excitation of F : 200 Sin5t N, Write the complete solution of the equation of motion. May/June 20I 3, p^ge io.27 Show that the log-decrement is also given by the equation, 6= /n log (Uo/Un) where Un" represents the amplitude after n" cycles have elapsed. Nov/Dec 2012, page no.lDo A machine foundation weighs 60 KN. The spring constant is 1L000KN/M and dash pot (damper) constant C :200 I(N S/M. Determine, Nov/Dec 2012, page no.48 (i) whether the system is over damped, undamped or critically damped (iD (ii) logaritbmic decrement (iii) (iii) ratio oftwo successive amplitudes . (iv) (iv) damped natural frequency (v) (v) if the inilial displacemenf is 10 mm and initial velocity is zero displacement at t : 1

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downward from its equilibrium position by a distance of 0.01 m. I'ind (i)' Equation of motion 'of the system (ii) Natural frequency ofthe system (iii) The response of the system as a function of time (iv) Total energy of the system. Uay/June 2013, page no.10

ofmotion of 2008;page no,ll

5. Derive the equatioa

0.1 .S.

single degree of freedorn system for free vibration and hence find the

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solution for. Nov/Dec l. Under damped system 2. Critically damped system

3.

Overdamped system.

PREPARED BY

5. AZHA6ARSAMY M.Tzch, MISTE AS.5T. PROFESSOR Deportrneht of Civil En99-

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Anna University important two mark and sixteen marks questions

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Tbo Marks

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write any two points of ass,mption are made in the shear building. Nov/Dec 2 0rrI I 11 2. Write a short note on free vibration analysis. NoytDec 2011, ?)l 3. Describe briefly the model super position metho d. NovtDec 2Ot2 2 fl-l 4. what is the firndamental frequency and ftrdamental mode? NovrD ec 2012 gl7 , 5. Enumerate dlrnamic equilibrium? May/Ju ne 20097 /le 6. Define nansitional ground motion? MaylJune 2009 1 g fl 7. How frequency is affected in the ftee vibration of u rnli frum"z xo"ro u'zow , ? I g 8. 1

What is model analysis? NovlD ec2Mn 2lJg Define resonant frequency? NovrD ec 20}grPl8 10. What is impulsive force? NovlD ec 2007 , 7l I l. wirat is meant by coupled aad uncoupled equations of motion? May/Ju ne20r3, ?)1 12. What is meant by mode shape? May/Jun e 201,6 t ? I 13. Describc bricfly the modal zuper.position method. Nov/Dec 2Ot2 . p/n 14. What is the fundamental &equency and fundamental mode? N ot/Dec 2olz ; p

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Sate-aurdprove the orthogonality prop.-rt}, of rnode shape. Nov/Dec 2012

4) In a two

storey building ftame, the masS, Ml=IVfl=lO00kg and stiffiresses ar.e Kl= K2=113I/m. if a horizontal force of 20Kn i-s applfed at the iop of ground storey level, determine the displacement of masses Ml andM2. Nov/Dec 2012 ,

PREPAR,ED BY

S. AZHA6ARSAIIIy trl. Tech, AIISTE ASST. PROFESSOR Deoortrneni of civit Fn.,.,

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PREPARED BY

S.AZHA6,4RSA/\ Y rll.Tech. AiISIE ASST. PROFESSOR Deportment of Civil En99.

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What is elastic rebound theory? NOV/DEC 2012, (PageNo: 3)

7.

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2. Explain settlement of dry sand? NOV/DEC 2012, (Page No: 6) 3. What is the importance of isoseismal m3p? M.A.Y/JIINE 2009, (Page No: 6) 4. Write the effect of the surface topography? MAY/JIJNE 2009, (Page No: 6) s. what is the difference between epicenter and hypocenter? NOV/DEC 2007, (paec No: r) 6. Compare intensity and magnitude of an earthquake? NOV/DEC 2007, (Page No: 4) What is epicenter? MAY/JUNE 2013, (Page No: 2)

Sixteen marks

'Unit-3

l: Elastic rebound

theory - Expiain in detail? MAY/JUNE 2013, (Page No: 13)

2.

Describe briefly the tectonic plate theory? Nov/DEC 2007 MAY/JLINE 2013,

3.

Exptain a) seismic waves b) principle ofseismograph c) characteristic ofstring ground

(PaeeNo:8)

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motion? NOV/DEC 2007, (PageNo:19)

4. Exptain the types of fault with neat sketches.

MAY/JIINE 2013, (Page No: 19)

5.

Write short notes on magnitude of earthquake. MAY/JUNE 2013, (Page No: 4)

6.

Explai-n the types of earthquake.MAY/JUNE 2013, (Page No:

7.

Explain the seismogram with neat sketch. NOV/DEC 2008, (Page No: 27)

3l)

10.

What is the assignment of an earthquake magnitude Based? Is magnitude the same as

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Briefly explain plate tectonic and lithospheric plates? MAY/JUNE 2009, (Page No: 8) Briefly explain the seismic waves with sketch? MAY/JUNE 2013, (Page No: l9)

8.

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intensity? NOV/DEC 2012, (Page No:i9)

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university queslions Two marks

Unit-4

2. 3. 4. 5.

Describe dynamic behavior of soil? NOV/DEC 2012, (PageNo: 7)

Define plate tectonic? MAY/JLINE 2009, (Page No:6)

What is meant by seismic moment? MAYIJIJNE 2009, (Page No: 6) What is liquefaction? NOV/DEC 2007, (Page No: 2)

Write any two factors that increase ductility in RC structures with seismic building?

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NOV/DEC 2007, (Page No: 30)

What is the signification of response spectrum? MAy/JliNE 201 3, @age No: 6) What is meant by liquefaction of soil? , (Page No: 2)

What is meant by zero period acceleration? MAYiJIINE 2013, (Page No: 28)

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Sixteen marks

Unit-4

What are the concepts of peak grourd acceleratiorr? MAY/JUNE 2013, (Page No: 27)

2)

Discuss briefly about the response spectrum and design spectrum? NOV/DEC 2007, (Page No: 23,25)

3)

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4)

Write short notes on the two main categories of liquefaction of soil? MAYiJUNE 2013,

(Page No:10)

5)

Briefly describe any five methods to reduce liquefaction of soil? MAY/JLJNE 2013, (Page No: I

6)

l)

Explain the importance ofductility in earthquake resistant design of R.C buildings?

MAY/JUNE 2009, (Page No: 30)

7) 8)

What are the factors affecting ductility? MAY/JUNE 2009, (page No: 30)

Describe briefly the factor affecting liquefaction characteristic? NOV/DEC 2012, (Page

No:14)

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Two Marks

L What is the concept ofbase isolation? May/June 2013, page no.6

4.

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What do you rrean by seisnric dampers? May/June 2013. page no.6 What is meant by occupancy factor? Nov/Dec 2012. page no.6 Explain story drift? Nov/Dec 2012, page no.6

what is the information required for the seismic evaruated bu,ding? May/Ju ne 2009,page no.6 Enumerate shear flexure failure? May/June 2009, page no.6 Why is base isolation effective?Nov/Dec 200g, page no.6

6. 7. 8. Explain the strong column

sp

2.

weak beam nlethod? Nov/Dec 200g, page no.7

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1-

4.

Briefly describe the type ofplan irregurarities and vertica.r irreg,rarities ofbuildings wirh neat sketches. MaylJune 2013, page no.4l Write short notes on anyone type of dampers with neat sketch. ? May/June 2013, page no.20 write the step by step procedure for seismic analysis

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Sixteen Marks

of RC bu,dings? MaylJune 20r3,page no.43 IS l gg3(part I):

Ly Sep procedure for seismic anarysis of a rour storey RC building as per

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ee drciples of dynamic vibration absorbers? Nov/Dec 200g, page no.40 6 EF"'' te base isolation techniques in multi storey buildings? Nov/Dec 200g, pa-ge no.3g 7_ Frd- fu €trecr of base isolation? May/Jrure 2009, page no.37 8. Wlnt ae tte 4plications of base isolation? JVIay/June 2009, page no.19,35 9. Briefly exphin tbe salient features of earthquake r.esistance provisions as per rs 4326:1993? May/June 20(D, page no.34

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, ll lLr" .ain criteria for earthquake resistanr measures? May/June 2009, page no.29 ' I l' what is the effect of ignoring the contribulion of masonry infill in the lateral load analysis of a multi storey frame? Nov/Dec 2012, pagE i no.25 Write short notes on anyone tlpe of dampers with neat sketch? May/June 2013, page no.20

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13. What is the etTect of ignoring the contribution of masonry

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infill in the lateral load analysis of a

multi-storey frame? Nov/Dec 201J, page rro.25

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14. For a foru storeyed RCC office building located in zone V and resting on hand rock. compute the seismic forces as per IS- l 893-2002 equivalent static procedure. Height of first is 4.2 m and the

remaining three stories are of heiglrt 3.2 nr each. Plan dimensions (length and width) of the strucfure are 15 m x 20 m. The RCC frames are infilled with brick masonry. Dead load on floor 12 kN/m2 on

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floors and l0 kN/m2 on loof. Live = 4 kN/m2 on floors and 1 .5 kltl/m2 on roof. , page no.83

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bdilding as $h$!rro.in Fig. 4 is situsted s.t &o*? kee' The height betweea4he il*orx rs B m and torar treight of tiuildiu6 is 12 m' The dead road aad no*nar rive loa, is runrped at respectiv* floor.

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