Week 1 Challenge

1.  Db = Deign descharge / Effective lenear waterway  =1000/128=7.8125 Means Score depth (dsm) 1.34*(db2/ksf)ke powar 0.33 =1.34*(7.8125)2/3)Ke power 0.33=3.62 Flood Without secimic zone condition for pier =scour depth2x mean 2x3.62=7.2 Mtr For Abutment  2xmean 2.362=7.2 mtr   Scour Depth = 2x mean…

Sol:- Type Of Load Dead load +SIDL {Superimpose dead load} (Clauses 203) Earth pressur (Clauses 214) Surcharge  Live Load (Clauses 204) Breaking Load  Water Pressure (Clauses 210) Seismic Load (Clauses 218) Temperature (Clauses 215) Wind In Horizantal Pressure (Clauses 209)    Bore Hole Detarls. 1.BROWNISH…

1.   Ans:- Foundation is Two Type  (A) Shallow Foundation  d<b Depth of foundation is lesser than or equal to its breadth. (B) Deep Foundation d>b Depth of foundation is Grater than its breadth.   2. Name all the components open foundation Bridge  open foundation Bridge is…

Sol: Wind Load  Ahmedabad basic Wind Speed As Per IS 875 (Part-3) 2015 (P. no.-51) =39 m/s V2 = Vb*k1*k2*k3*k4  k1 = (39m/s) 1.06 k2 =1 l3=1 k4=1 = 39*1.06*1*1*1=41.34  Wind Pressure = 0.6*V2 =0.6*41.34=1025.40 =1.03  kn     Soil Wight= 18Kn/m3 Earth pressure = Ko * 18*20 = 180 kn IRS = Metro…

DWT = 52500 Speed  = 60 km/hr Length = 294 m Hydrodynamic coefficient = 1.25   Sol:- Barge Collision Energy  KE = 500 * Ch * W * V2    (As per IRC 6 Page No. 78 ) Where W = Berge Displacement Tonnage (T) V = Barge impact Speed (m/s) KE = Barge Collision Energy (N-m) Ch = Hydrodynamic…

Given Data  high flood level iss 4 mtr span of bridge = 4X10=40 Mtr mean volocity of the river = 2.5 m/s width of carrage way 9 mtr live load class is 70R tracked vehicle  radius od curvature in the bridge is 2 m desifn speed is 50 km/hr size of pier 1.2*1.2 width od deck slab 9 mtr thikmness os deck slab 1.5 …

Given Date- Location of Bridge Delhi Rcc Bridge Grade M40 Box girder 1.5 m x 1.5 m Dia Pier =2.5  Deck Slab Width =7 Mtr Width of Pier Cap 6 Mtr Slab Thikness 550 mm   Sol:- Effective Temperature Difference =(48.4--2.2)/2+10=35.3 Degree As Per IRC 6                …

Given Data:- Span of Bridge = 10 m Desk of Bridge is Flat <30 Degree The Depth of flat occurnuiation of snow is 1250mm Width is 18 Mtr As Per Attach DWG   Sol:- Snow Density =2 Kn / M3 Depth = 1.250 Degree = 30 Degree   =2*1.250*20=50 Kn Snow Load is  = 0.8*50 = 40Kn   Open Staad Pro . 1.Draw…

Givin data :- Wave 3 mtr girder I-height 1.7 Mtr Width 2.5  mtr   flangea web =500 mm Span 12 mtr width of deck slab = 9 Mtr slab thilness = 2 mtr   Sol:-  zn = n max - centered of i girder =2.9*1.7=4.93 zv= n max -elevation od bottom deck =2.9-1=1.9   N Is number of supports girder=3 Vertical…

given data :- Span the Width =12 Mtr Width is = 7 M Live Load Is 70R Design Speed is = 70 km /hr radius of curvature = 3 m Sol:- Calculation  Centrifugal force = (w*v2)/(127R) (70*75*75)/(127*3)=1033 Kn The Centrifugal force is = 1033 kn   & Opan the staad pro  1. Draw the brige  span is 12 mtr…

Flood Level = 2 Mtr. Bridge Span = 45 Mtr The Mean Volocity of the river is 3 m/s  Sol: Flood Level = 2 Mtr Max. Velocity = v=2 * Vmean =2*2*2 2.828    Water Current (P)= 52*k*v2 k= Pier Shap v2 = Maximum Velocity   = 52*0.66*2.828=274.477   Open Staad Pro . & Drow the Sketch  Span is…

Given Data  Bridge Location Mumbai    Brige above to ground Level = 9 Mtr Bridge is open terrain with well Scattered obstruction of Height ids 10 Mtr. Pier Size Is 1.5 x 1.5 Mtr.     Sol:- Mumbai Wind =  44 m/s As per IS875 Part-3 (Appendix A)              …

Given Date: Abutment Wall Height = 5 Mtr Backfill Soil =7Mtr Ground Level at 3M above top of foundations.   Sol:- open Staad pro  Draw Pier   Draw Aboutment & Going To Loading option & Add the  EarthPressure  & Soil Load on Foundaction = P1 = 18*3=54 KN/M2 =P2  =  18*7…

Given Data:- Width od Desk Slab=10.2m Span of Bridge=12m Pier Dia is 2.5 m Seismic Zone is IV Wind Speed is=47km/hr Radius =60km  Soil is 19kn/m3   Sol:- Dead Load:-                                          …

Give Data: Bridge Deck Width = 26 Mtr Span =26 Mtr Height = 10   Sol:-  Metro Rail Load 170 Kn  Wheel Length (a) 2.1 (B) 2.2 (C) 12.4 Total Lenght = 21.1 Mtr                                          …

700 mm Pipe Load=6.02 Kn/m 200 mm Pipe Load =0.7668 Kn/m

Dead Load Self Weight of Deck Slab=7*.2*25=35 KN/M3 ParapetWall = 0.350*0.350*25=3.0625 Steel Parapet Wall = 1.080*.2*78.5 = 16.956  Girder= 1.7*0.5*25=21.25 4 Nos Girder= 21.25*4=85     Total Dead Load Is = 35+3.0625+16.956+21.25+85=161.2685     Live Load  Axel Load = 17 Tons Length = 21100 Span=8 Mtr Width=7 Mtr Live…