r-62 - recommendations for the design of concrete pavement · concrete pavement design study table...
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DO NOT REMOVE HWM liBRARY
MICHIGAN
STATE HIGHWAY DEPARTMENT LANSING 13
CHARLES M. ZIEGLER STATE HIGHWAY COMMISSIONER
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HARRY T. WARD CHIEF' DEPUTY COMMISSIONER
HARRY C. COONS DEPUTY COMMISSIONER, CHIEF" ENGINEER
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TENTATIVE FATIGUE DIAGRAM- PLAIN CONCRETE
Modification and Extension of Fatigue Diagrams Contained in (I) Illinois Division of Highways Engineering Report No.
34-1 (According to R. D. Bradbury) (2) Report No. 42, Oct. 21, 1933, Verein Deutscher
lngenieure (VDI) by W. 0. Fremont.
Ultimate Tensile Strength • 750
Te~silli'- Stre5'• A• 275 p-,$.!.
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CONCRETE PAVEMENT DESIGN STUDY TABLE NO. i
COMPUTATION OF CRITICAL WHEEL LOAD FREQUENCY, PER DAY
Cle.ss Highway Type Total Daily Commercial Commeroia.l Estimated Ratio of Total Daily Dail~ Wheel Load Freguene~ for Eech Class Traffic Capa.ei ty Traffic Traffic Com. Traffio Axles to Axle Loads 400Qoo4400 45oo-54oo 5oo:64oo 6Soo-74oo 75oo-84oo BSoo-9400 Over 9400
per Lane Pe:roent Per Lane per Lane Vehioles 4200 5000 6000 7000 Booo 9000 10,000 4 % 9% 10% 9.5% 7·5% 4% 1%
I Express 1'la.y 12,000 15 !BOO 2000 2.6 5200 208 468 520 494 390 208 52 Divided Lane
II Heavy Primary 12.000 a· 960 1000 2.6 2600 104 234 260 247 195 104 26 2 Lane
III Light Primary 12,000 2 240 250 2.6 2 Lane
650 26 59 65 62 49 26 6.5
I'7 Secondary 12.000 1 120 12~ 2,6 ~ Lane
325 13 29 33 31 24 13 3
TABLE NO. ft, COMPUTATION OF CRITICAL WHEEL LOAD FREQUENCY • PER YEAR
Class Higtrws.y Type Critical Wheel Load Per Year 4200 5ooo gooo 76150 Booo 9000 10,000
I Express Way • Divided Lane 75,920 170,820 189,800 180,310 142,350 75,920 18,980
II Heavy Primary - 2 Lane 37.960 8$,410 94,900 90,155 71,175 37,960 9,490
III Light Primary - 2 Lane 9,490 21,3.53 23,725 22,.539 17,794 9,Ll90 2,3?3
IV Secondary - 2 Lane 4.745 10,677 11,863 11,2?0 8,897 4,745 1,18?
GRAPHIC PRESENTATION OF WHEEL LOAD FREQUENCY BASED ON 1936
TRAFFIC COUNT FROM REPORT TO PUBLIC ROADS ADMINISTRATION
BY PLANNING AND TRAFFIC DIVISION 1938
WEIGHING STATIONS
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RAGE GROUP I
~5~-~ 7,f--f----~~-~~~~~~~-\T-~~~~FDFOR~P~~~E @ MENT DESIGN OF 0::: TYPE I -;II LL HIGHWAYS
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4000 5000 6000 7000 8000 9000
WHEEL LOAD IN POUNDS Figur!l 2
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DESIGN DIAGRAM FOR CONTINUOUS REINFORCED SLABS
For Highway Classes 1·11·111·1V
Class I - _.
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Class Ill
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GO BO 100 120 140 160 180 200 Length of slab between breaks in reinforcement, in feet
DESIGN DIAGRAM FOR HINGED REINFORCED SLABS
For Htghway Classes 1·11·111" IV
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RELATI NSHI ETWEEN CTION M EME T
ND TANCE FROM C NTER OF SECTION
SERIES 1-F ~ LENGTH 2700'
SPACING OF CONTRACTION JOINTS 60'
100 200 :300 400 :'JOO 600 700 800 900 1000 1100 1200 1300 1400
DISTANCE FROM CENTER OF SECTION IN. FEET
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==:!:. -~-:l==:: _________ t __ ~---L-~-~-=------~--=~:=L=~= t _ 1 RELATI NSHIP BETWEEN SECTION MOVEMENT
2.4 AND DISTANC FROM C NTER OF S CTION
, ---~-1 SERIES 4 F- LENGTH 2700' f--·· 2'2 ~-- --- SPt~CING OF CONTRACTION dOINTS ~_10'- --- /
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-- --=±-=-=1--=.-=b~_ ~- r __L___ ___ _ [ N. End of Section / j
1.6 __ --- JUL 1941 ___ ------------~:::_:_ ___ :.:_·-::::_ ~::....:.~=-t-
13--~---o AUG. 1942 I ' x---~c-----1< AUG. 194.3 ___ -------------- ------ ----------------- - -/-------
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1.2 0 --~~---·. -~---~--~-- . --~ ~~----·-'-·--···-·-"'""'-~-·-·:·J. 100 200 300 400 500 GOO ''100
DISTANCE FROM GENTEFI F SECTION -a
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