Elastomeric Bearing - 15m Span

SHEET NO.

NOTE NO. DN-18

DESIGN OF ELASTOMERIC ELASTOMERIC BEARING The bridge is having simply support span. each su pport has three no. o elastomeric bearings. CALCULATION OF BEARING LOADS

Normal Case Max. Reaction on a bearin !"eer ST##D output$ Due to D& o "'' girder and slab !rom design calc.$ ( Due to Diaphragm ( Due to S/D& ( Total DL ! SIDL "

On outer %earing

On inner %earing

)*.++ +.,) )*.,) ,.0 #$.

%$t t t t t

)*.++ .+ )8.+ +.* &'.()

t t t t t

Due to &ive load !impact -1.1$ (

2a3. 2in.

0.,, -1.)+

t t

*).8, -+.*

t t

Total Maxim*m loa+ " Total Minim*m loa+ "

2a3. 2in.

,#.$' #.#%

t t

'-.% &'.&$

t t

Calc*lation o/ 0ori1ontal /orces 233 4ori1ontal /orce /rom s*5erstr*ct*re  Nos. elastomeric bearings are proposed on each support. %ra4ing orce (

!1++ 3 +.) $

(

)+.++

t

(

1+.++

t

Total Hori5ontal orce transerred rom superstructure ( )+.++ 6 )

This orce is resisted by three bearing provided at each end Thus longitudinal orce on each bearing (

1+.++

6



(

).),$

(

. t

Seismic Trans6erse Case 0

Seismic orce on Dead load (

*.,,

t7

/ts lever arm above beari aring level (

1.+1

m !appro3.$

Thus moment at bearing level (

*.,,

3

1.+1

1,.88

3

+.+0*

Seismic orce on S/D& (

say

! Hor. seismic coe.$

*.,,

t

(

.+)

Tm

(

1.,

t

SHEET NO.

NOTE NO. DN-18

/ts lever arm above bearing level (

1.8+

m

Thus moment at bearing level (

1.,

3

Total lilive lo load re reaction at at su support(

0.+

t

Seismic orce on && !*+$

.*

3

/ts le lever ar arm ab above be bearing le level (

).0*

m

Thus moment at bearing level (

).*1

(

3

1.8+

(

).8

Tm

+.+0*

(

).*1

t

(

.,*

Tm

).00

Total trans6erse /orce "

-).))

t

This orce is resisted by three bearing provided at each end Thus transverse orce on each bearing (

1+.++

6

Total transverse moment (

3 9) (

)

3 ! ).,+9) : +9) $



(

1*.*

Tm

. t

(

1.8) m9)

Hence7 ;e ;ertical load on inner bearing (

1*.*

3

+.+++

( !:6-$

+.++

t

Hence7 ;e ;ertical load on outer bearing (

1*.*

3

+.10)

( !:6-$

).0+

t

Thus7 2a3imum load on outer bearing bearing !*+ &&$ ( )*.,) : ,.0 : 1,.++ :

).0+

(

*0.),

t

2inimum load load on outer bearing ( )*.,) : ,.0

-+.+

-).0+

(

).),

t

). :

+.++

(

**.+

t

-+.18

+.++

(

)8.)

t

2a3imum load on inner bearing )8.+ : +.*

( :

2inimum load on inner bearing ( )8.+ : +.* The design vertical load !minimum$ (

&'.&

t !>

(

+.++)) rad

NOTE NO. DN-18

1. STAAD SPACE ANALYSIS OF SUPERSTRUCTURE FOR SIDL 2. INPUT WIDTH 79 3. UNIT MTON METRE 4. * 5. JOINT COORDINATE 6. * 7. 101 0.0 0.0 0.000 109 14.0 0.0 0.000 . 201 0.0 0.0 1.450 209 14.0 0.0 1.450 9. 301 0.0 0.0 4.350 309 14.0 0.0 4.350 10. 401 0.0 0.0 7.250 409 14.0 0.0 7.250 11. 501 0.0 0.0 .700 509 14.0 0.0 .700 12. * 13. 701 0.0 0.0 0.725 709 14.0 0.0 0.725 14. 01 0.0 0.0 2.900 09 14.0 0.0 2.900 15. 901 0.0 0.0 5.00 909 14.0 0.0 5.00 16. 1001 0.0 0.0 7.975 1009 14.0 0.0 7.975 17. * 1. 110 !0.50 0.0 0.00" 111 14.50 0.0 0.0 19. 210 !0.50 0.0 1.450" 211 14.50 0.0 1.450 20. 310 !0.50 0.0 4.350" 311 14.50 0.0 4.350 21. 410 !0.50 0.0 7.250" 411 14.50 0.0 7.250 22. 510 !0.50 0.0 .700" 511 14.50 0.0 .700 23. * 24. 710 !0.50 0.0 0.725" 711 14.50 0.0 0.725 25. 10 !0.50 0.0 2.900" 11 14.50 0.0 2.900 26. 910 !0.50 0.0 5.00" 911 14.50 0.0 5.00 27. 1010 !0.50 0.0 7.975" 1011 14.50 0.0 7.975 2. * 29. MEM INCIDENCE 30. 101 101 102 10 31. 201 201 202 20 32. 301 301 302 30 33. 401 401 402 40 34. 501 501 502 50 35. * 36. 701 701 702 70 37. 01 01 02 0 3. 901 901 902 90 39. 1001 1001 1002 100 40. * 41. 109 110 101" 110 109 111 42. 209 210 201" 210 209 211 43. 309 310 301" 310 309 311 44. 409 410 401" 410 409 411 45. 509 510 501" 510 509 511 46. * 47. 709 710 701" 710 709 711 4. 09 10 01" 10 09 11

SHEET NO.

NOTE NO. DN-18

SHEET NO.

49. 909 910 901" 910 909 911 50. 1009 1010 1001" 1010 1009 1011 51. * 52. 2101 101 701 2109 53. 2201 201 01 2209 54. 2301 301 901 2309 55. 2401 401 1001 2409 56. * 57. 3101 701 201 3109 5. 3201 01 301 3209 59. 3301 901 401 3309 60. 3401 1001 501 3409 61. * 62. MEM#ER PROPERTIES 63. *DUMMY MEM#ER 64. 101 TO 110 501 TO 510 PRIS YD 0.05 $D 0.05 65. 701 TO 710 01 TO 10 901 TO 910 PRIS YD 0.05 $D 0.05 66. 1001 TO 1010 PRIS YD 0.05 $D 0.05 67. 209 210 309 310 409 410 PRI YD 0.05 $D 0.05 6. * 69. 301 TO 30 401 TO 40 201 TO 20 ! 70. PRIS A% 1.3645 I% 1E!10 IY .4673 I$ .22 71. * DIAPHRA&M 72. 2201 TO 2301 #Y 100 2209 TO 2309 #Y 100 ! 73. 3201 TO 3301 #Y 100 3209 TO 3309 #Y 100 ! 74. PRIS A% 0.52932 I% 1E!10 IY 0.01429 I$ 0.05910 75. 2101 2401 2109 2409 ! 76. 3101 3401 3109 3409 PRIS A% 0.17732 I% 1E!10 IY 0.009599 I$ 0.000715 77. * SLA# 7. 2102 TO 210 2202 TO 220 2302 TO 230 2402 TO 240 ! 79. 3102 TO 310 3202 TO 320 3302 TO 330 3402 TO 340 ! 0. PRIS A% 0.350 I% 1E!10 IY 0.0926 I$ 0.001553 1. * 2. SUPPORTS 3. 201 301 401 PINNED 4. 209 309 409 FI%ED #UT F% F$ M% MY M$ 5. * 6. CONSTANTS 7. E 3.0E6 . DEN 2.4 9. * 90. LOAD 1 SIDL 91. MEM#ER LOAD 92. ***WEARIN& COAT 93. *

0.2*'2.9(2)1.225 + 0.535 T(M

94. *

0.2*2.9 + 0.5 T(M

95. 201 TO 210 401 TO 410 UNI &Y !0.535 96. 301 TO 310 UNI &Y !0.5

SHEET NO.

NOTE NO. DN-18

97. **CRASH #ARRIER 9. 101 TO 110 501 TO 510 UNI &Y !0.50 99. * 100. LOAD 2 SELF WT OF DIAPHRA&M 'WT. 0.%0.40%2.4+0.45 T(M 101. MEM#ER LOAD 102. 2201 TO 2301 #Y 100 3201 TO 3301 #Y 100 2209 TO 2309 #Y 100 ! 103. 3209 TO 3309 #Y 100 UNI &Y !0.45 104. * 105. PERFORM ANALYSIS 119. LOAD LIST 1 120. PRINT SUPPORT REACTION JOINT

LOAD

FORCE!%

FORCE!Y

FORCE!$

MOM!%

MOM!Y

MOM $

201

1

.00

9.67

.00

.00

.00

.00

301

1

.00

.54

.00

.00

.00

.00

401

1

.00

9.67

.00

.00

.00

.00

209

1

.00

9.67

.00

.00

.00

.00

309

1

.00

.54

.00

.00

.00

.00

409

1

.00

9.67

.00

.00

.00

.00

121. LOAD LIST 2 122. PRINT SUPPORT REACTION JOINT

LOAD

201

2

.00

.92

.00

.00

.00

.00

301

2

.00

3.06

.00

.00

.00

.00

401

2

.00

.92

.00

.00

.00

.00

209

2

.00

.92

.00

.00

.00

.00

309

2

.00

3.06

.00

.00

.00

.00

409

2

.00

.92

.00

.00

.00

.00

123. FINISH

FORCE!%

FORCE!Y

FORCE!$

MOM!%

MOM!Y

MOM $

NOTE NO. DN-18

SHEET NO.

1. STAAD SPACE ANALYSIS OF SUPERSTRUCTURE FOR LI,E LOAD 70R WHEELED 2. INPUT WIDTH 79 3. UNIT MTON MET 4. * 5. JOINT COORDINATE 6. * 7. 101 0.0 0.0 0.000 109 14.0 0.0 0.000 . 201 0.0 0.0 1.450 209 14.0 0.0 1.450 9. 301 0.0 0.0 4.350 309 14.0 0.0 4.350 10. 401 0.0 0.0 7.250 409 14.0 0.0 7.250 11. 501 0.0 0.0 .700 509 14.0 0.0 .700 12. * 13. 701 0.0 0.0 0.725 709 14.0 0.0 0.725 14. 01 0.0 0.0 2.900 09 14.0 0.0 2.900 15. 901 0.0 0.0 5.00 909 14.0 0.0 5.00 16. 1001 0.0 0.0 7.975 1009 14.0 0.0 7.975 17. * 1. 110 !0.50 0.0 0.00" 111 14.50 0.0 0.0 19. 210 !0.50 0.0 1.450" 211 14.50 0.0 1.450 20. 310 !0.50 0.0 4.350" 311 14.50 0.0 4.350 21. 410 !0.50 0.0 7.250" 411 14.50 0.0 7.250 22. 510 !0.50 0.0 .700" 511 14.50 0.0 .700 23. * 24. 710 !0.50 0.0 0.725" 711 14.50 0.0 0.725 25. 10 !0.50 0.0 2.900" 11 14.50 0.0 2.900 26. 910 !0.50 0.0 5.00" 911 14.50 0.0 5.00 27. 1010 !0.50 0.0 7.975" 1011 14.50 0.0 7.975 2. * 29. MEM INCIDENCE 30. 101 101 102 10 31. 201 201 202 20 32. 301 301 302 30 33. 401 401 402 40 34. 501 501 502 50 35. * 36. 701 701 702 70 37. 01 01 02 0 3. 901 901 902 90 39. 1001 1001 1002 100 40. * 41. 109 110 101" 110 109 111 42. 209 210 201" 210 209 211 43. 309 310 301" 310 309 311 44. 409 410 401" 410 409 411 45. 509 510 501" 510 509 511 46. * 47. 709 710 701" 710 709 711 4. 09 10 01" 10 09 11

NOTE NO. DN-18

SHEET NO.

49. 909 910 901" 910 909 911 50. 1009 1010 1001" 1010 1009 1011 51. * 52. 2101 101 701 2109 53. 2201 201 01 2209 54. 2301 301 901 2309 55. 2401 401 1001 2409 56. * 57. 3101 701 201 3109 5. 3201 01 301 3209 59. 3301 901 401 3309 60. 3401 1001 501 3409 61. * 62. MEM#ER PROPERTIES 63. *DUMMY MEM#ER 64. 101 TO 110 501 TO 510 PRIS YD 0.05 $D 0.05 65. 701 TO 710 01 TO 10 901 TO 910 PRIS YD 0.05 $D 0.05 66. 1001 TO 1010 PRIS YD 0.05 $D 0.05 67. 209 210 309 310 409 410 PRI YD 0.05 $D 0.05 6. * 69. 301 TO 30 401 TO 40 201 TO 20 ! 70. PRIS A% 1.3645 I% 1E!10 IY .4673 I$ .22 71. * DIAPHRA&M 72. 2201 TO 2301 #Y 100 2209 TO 2309 #Y 100 ! 73. 3201 TO 3301 #Y 100 3209 TO 3309 #Y 100 ! 74. PRIS A% 0.52932 I% 1E!10 IY 0.01429 I$ 0.05910 75. 2101 2401 2109 2409 ! 76. 3101 3401 3109 3409 PRIS A% 0.17732 I% 1E!10 IY 0.009599 I$ 0.000715 77. * SLA# 7. 2102 TO 210 2202 TO 220 2302 TO 230 2402 TO 240 ! 79. 3102 TO 310 3202 TO 320 3302 TO 330 3402 TO 340 ! 0. PRIS A% 0.350 I% 1E!10 IY 0.0926 I$ 0.001553 1. * 2. SUPPORTS 3. 201 301 401 PINNED 4. 209 309 409 FI%ED #UT F% F$ M% MY M$ 5. * 6. CONSTANTS 7. E 3.0E6 ALL . * 9. DEFINE MO,IN& LOAD FILE DML.T%T 90. ** 91. TYP 1 CLA 1.0 92. TYP 2 CL70R 1.0 93. * 94. **** CASE 1 - CLASS 70R MOST ECCENTRIC 95. LOAD &ENERATION 100 96. TYPE 2 !13.9 0.0 6.55 %INC 0.30

SHEET NO.

NOTE NO. DN-18

97. * 9. **** CASE 2 - CLASS 70R ONE WHEEL O,ER &2 99. LOAD &ENERATION 100 100. TYPE 2 !13.9 0.0 6.20 %INC 0.30 102. **** CASE 3 - CLASS 70R TRAIN SYMMETRIC TO &2 103. LOAD &ENERATION 100 104. TYPE 2 !13.9 0.0 5.315 %INC 0.30 105. * 106. *** CASE 4 - CLASS A MOST ECCENTRIC 107. LOAD &ENERATION 100 10. TYPE 1 !19.30 0.0 .075 %INC 0.35 109. * 110. PERFORM ANALYSIS 111. LOAD LIST 50 51 52 112. PRINT SUPPORT REACTION LIST 409 JOINT

LOAD

FORCE!%

FORCE!Y

FORCE!$

MOM!%

MOM!Y

MOM $

409

50

.00

33.51

.00

.00

.00

.00

51

.00

34.54

.00

.00

.00

.00

52

.00

26.64

.00

.00

.00

.00

113. LOAD LIST 64 65 66 114. PRINT SUPPORT REACTION LIST 209 JOINT

LOAD

FORCE!%

FORCE!Y

FORCE!$

MOM!%

MOM!Y

MOM $

209

64

.00

!.99

.00

.00

.00

.00

65

.00

!1.09

.00

.00

.00

.00

66

.00

!.60

.00

.00

.00

.00

115. LOAD LIST 250 251 252 116. PRINT SUPPORT REACTION LIST 309 JOINT

LOAD

FORCE!%

FORCE!Y

FORCE!$

MOM!%

MOM!Y

MOM $

309

250

.00

46.17

.00

.00

.00

.00

251

.00

4.0

.00

.00

.00

.00

252

.00

35.4

.00

.00

.00

.00

117. LOAD LIST 200 201 202 11. PRINT SUPPORT REACTION LIST 309 JOINT

LOAD

FORCE!%

FORCE!Y

FORCE!$

MOM!%

MOM!Y

MOM $

309

200

.00

.00

.00

.00

.00

.00

201

.00

!.32

.00

.00

.00

.00

202

.00

!.13

.00

.00

.00

.00

NOTE NO. DN-18

119. FINISH

SHEET NO.

SHEET NO.

NOTE NO. DN-18

A. Desin Data 3 Normal case 2a3. ;ertical &oad N ma3 (

8188+ N !reer calculation o bearing loads$

2in. vertical load N min (

)8)8+ N !reer calculation o bearing loads$

Hor5. orce in &ong. dir. h l rom supstr. ( Hor5. orce inTrans. dir. h t rom supstr. ( "otation in &ong. dir. αbd ( "otation in Trans. dir. αld(

 N !reer calculation o bearing loads$ +N +.++)) reer !reer calculation o bearing loads$ + rad

Translation in long. dir. ∆bd (

.*+ mm

Translation in Trans. dir. ∆ld ( 'oncrete grade o pedestal 2

+ mm + 2pa

Bermissble stress in bearing σo (

0.* 2pa

/ncreased permissible stress as per cl. +0.1 o /"'=)1 subCect to a ma3imum value  1+ 2pa as per cl. ,1..* B. Bearin Data

1+.++ 2pa

Overall length o bearing in trans. dir.l o

8+ mm

Overall idth o bearing in long. dir. b o

8+ mm  mm

Side cover c Thic4ness o individual layer o elastomer h i

1+ mm

Thic4ness o top6bottom layer o elastomer he

* mm

Total no. o internal layers n



Thic4ness o steel laminate h s

 mm

Eective idth b ( b o -)c

8 mm

Eective length l ( l o -)c

8 mm

Eective plan area # ( l ? b 2odulus o rigidity o ealstomer <

 #ssuming that condition o reuired area ill be satisied

should be h i6) subCect to ma3 o mm

1*) mm) 1.+ 2pa

#. Desin o/ Bearin -. C0ec; /or base