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Pound - Feet

KN - m

Tonf - m

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140000*(300)2

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Display the Results

Tabular Display

Graphically

Display

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base

supports

Set Display Options

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M11

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.

.

M22

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DiaphragmCenter of MassCenter of Rigidity

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Modify Lateral Load

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Ecc. Ratio All Diaph.)0.05

( )

0.05

:

EQX1.X Dir. + Eccen. Y

EQX2.X Dir. - Eccen. Y

EQY1.Y Dir. + Eccen. X

EQY2..Y Dir. - Eccen. X

Overwrite Eccentricities

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ma x

20%

avg

(Torsional Irregularity)

:

Torsional amplification

Factor at level x

max avg X I f 1.2 ....e 0.05 * L * A

.

Method A

34

st 1 t n T T C ( h )

t

C (

m

inch

....

Ft.)

Program Calculated

dy st

T 1.4T T Used isdy

T

dy st T 1.4T

T Used is st1.4T

dy st T 1.3T T Used is

dyT

dy st T 1.3T T Used is

st1.3T

User Defined

.

2

m ax

X

avg

A ..........1.2

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.

R5.5.

Per Code

A V

C ,C.

User Defined

A V

C ,C.

User DefinedA V

C ,CSeismic

Zone

dyT

stT

st1.3T

st1.4T

st1.3T

.st

T

dyT

used

T

User Defined.

Zone 4

(A,B,C)

Na ,

Nv.User Defined.

Zone 4.

I = 1.

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Analyze

Set Load Case to Run

Mass SourceDiaphragm Center of

Mass,

Calculate Diaphragm Centers of Rigidity

Center of Rigidity.

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Summary Report

Project Report

Model File: ETABS 2015, Revision 0

2015-01-29

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Mass X rom loads Mass Y rom loads

XCM X"X Center of Mass YCM X"Y Center of Mass

CumMassX X CumMassY X

XCCM

X YCCM Y

XCR

X"X Center of

Rigidity"YCR

Y"Y Center of

Rigidity"

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Check on Torsional Amplification Factors at Level X.

( Ax

.5%

EQX1EQX2EQY1EQY2.max

20%

avg

(Torsional Irregularity)

AX:

maxX.

avg

X.

2

max

X

avg

A 31.2

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Check on Participation Mass Ratio.

X 2.97

Y 6.94

um UX ) (

um UY

) (

ode 12um UX= 93.24 um UY=94.3 2

% ,9

. X

dyT ( x ) 1.482 sec

.

Y

dyT ( y ) 1.66 sec

ode Period

1

dyT ( y ) =1.66 sec

2dy

T ( x ) =1.482 sec

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Period Acceleration

0 Ca = 0.22

To = 0.1164 2 5 Ca = 0.55

Ts = 0.5818 2 5 Ca = 0.55

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ga/gag.

R

(

Plastic Limit.)

g 9.81

1.7836R 5.5

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(R)

. base shear

.

dyV

stV.

dy

VR)(

:

9 %

BC 97.

9 % .

99 % .

stdyused

011001001

01157011

UBC97011571

UBC9701177

UBC97011017017

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..

p(t) mu(t) ku(t)

, mk

Eigen Values 2

0k m

./ 2 TT

Eigen Vectors )(

.

.

) )

,

.

,

.,

EigenvectorsRITZ

(m , k)

:Exact Eigen

Solution

:

90%

Upper Bound

Solution

:

2

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Upper Bound

Solution

Lower Bound

Solution

:

RITZEigen Values

.

RITZ

Eigen Values

.

RITZ

Eigen Values

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1-Check on No. of Modes Participation Mass Ratio).9

um UX 98.15 )

um UY 98.95 )

2

2-Scaling

Compare between V

st

and V

dy

).

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157.651* 0.9 1.768

80.2527

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LOAD CASESDEAD DEAD LOAD

FC COVER LOAD

WALL WALL LOAD

LL LIVE LOAD < 480Kg/m2

LR ROOF LIVE LOAD

SL LIVE LOAD > 480Kg/m2

EQX Earth quick in X-DIRECTIONEQXP Earth quick in X+POSITIVE ECC

EQXN Earth quick in X+NEGATIVE ECC

EQY Earth quick in Y-DIRECTION

EQYP Earth quick in Y+POSITIVE ECC

EQYN Earth quick in Y+NEGATIVE ECC

:

EQ LOAD COMBINATIONSDL DEAD+FC+WALL

U1 1.4DL

U2 1.2DL+1.6(LL+SL)+0.5LR

E1 1.32DL+ 0.55LL+1.1SL+1.1 EQX

E2 1.32DL+ 0.55LL+1.1SL-1.1EQX

E3 1.32DL+ 0.55LL+1.1SL+1.1EQXPE4 1.32DL+ 0.55LL+1.1SL-1.1EQXP

E5 1.32DL+ 0.55LL+1.1SL+1.1EQXN

E6 1.32DL+ 0.55LL+1.1SL-1.1EQXN

E7 1.32DL+ 0.55LL+1.1SL+1.1EQY

E8 1.32DL+ 0.55LL+1.1SL-1.1EQY

E9 1.32DL+ 0.55LL+1.1SL+1.1EQYP

E10 1.32DL+ 0.55LL+1.1SL-1.1EQYP

E11 1.32DL+ 0.55LL+1.1SL+1.1EQYN

E12 1.32DL+ 0.55LL+1.1SL-1.1EQYN

E13 0.99DL + 1.1EQX

E14 0.99DL -1.1 EQX

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E15 0.99DL +1.1 EQXP

E16 0.99DL -1.1 EQXP

E17 0.99DL +1.1 EQXN

E18 0.99DL - 1.1EQXN

E19 0.99DL + 1.1EQY E20 0.99DL - 1.1EQY

E21 0.99DL +1.1 EQYP

E22 0.99DL -1.1 EQYP

E23 0.99DL + 1.1EQYN

E24 0.99DL - 1.1EQYN

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R Click

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