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[M19 ST 1106]
I M. Tech I Semester (R19) Regular Examinations
BRIDGE ENGINEERING
STRUCTURAL ENGINEERING
MODEL QUESTION PAPER
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TIME: 3 Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT
All questions carry equal marks
| CO | KL |
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UNIT -1
- a). Identify different types of loads on a concrete bridge according to IRC. (1 K3)
- b). Make use of general design requirements in design of concrete bridges. (1 K3)
OR
- a). Identify different types of bridges. (1 K3)
- b). Organize distribution of concentrated loads in design of deck slabs. (1 K3)
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UNIT - II
Distinguish between Pigeauds method and Hendry-Jaugar method. (2 K4) (15)
OR
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A reinforced concrete T beam bridge is to consist of 5 beams 1.75 m apart. The span of the bridge is 12m clear with end bearings of 600 mm. The live load on the bridge 17kN/m’ including impact. The carriageway over the bridge is to be 7 m wide with a footpath of 1.5 m width on other side. The loading on the footpath may be taken as 3.9 kN/m². Design the bridge. Use M20 grade concrete and Fe415 steel: (2 K4) (15)
UNIT - III
Design a reinforced concrete box culvert having a clear vent way of 3m x 3m. The superimposed dead load on the culvert is 12.8 kN/m². The live load is estimated as 50 kN/m’. Density of soil at site is 18 kN/m’. Angle of repose is 30°. Adopt M20 grade concrete and Fe415 steel. Sketch the details of reinforcement in the box culvert. The design should conform to the specifications IRC: 112 -2011. (2 K4) (15)
OR
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Design a reinforced concrete box culvert with inside dimensions 3m height and 4.5 m width. The box culvert has to carry a superimposed load of 10 kN/m² and a live load of 50 kN/m². The density of soil is 20kN/m’. Angle of repose is 30°. Adopt M20 grade concrete and Fe415 steel. Sketch the details of reinforcement in the box culvert. (2 K4) (15)
UNIT - IV
Design an un-stiffened welded plate girder with THICK web, for a simply supported bridge with a clear span of 24 m, subjected to a factored bending moment 4800 kN-m and factored Shear force 1000 kN. The girder carries two factored moving loads of 180 kN each spaced at 2 m center to centre. The plate girder is restrained laterally and prevented from rotation. (4 K4) (15)
OR
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Design an un-stiffened welded plate girder with THIN web, for a simply supported bridge with a clear span of 24 m, subjected to a factored bending moment 4800 kN-m and factored Shear force 1000 kN. The girder carries two factored moving loads of 180 kN each spaced at 2 m center to centre. The plate girder is restrained laterally and prevented from rotation. (K4) (15)
UNIT -V
Design a pipe culvert through a road embankment of height 8 m. The width of the road is 7.5 m and the formation width is 10 m. The side slope of the embankment is 1.5:1. The maximum discharge is 6m³/s. The safe velocity is 4 m/s. Class AA tracked vehicle is to be considered as live load. Assume bell-mouthed entry. Given C =1.5, Cs = 0.010 and the unit weight of the soil = 20 kN/m’. (K4) (15)
OR
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Design suitable RCC non pressure pipe culvert to suit the following data:
Discharge through pipe culvert=1.57 m³/s,
Velocity of flow through pipe= 2 m/s,
Width of road= 7.5m,
Bed level of stream= 100 m,
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Top of embankment= 103 m,
Top width of embankment=1.5:1
Loading is IRC class AA wheel load of 62.5 kN
Draw longitudinal section, plan and end view of pipe culvert (K4) (15)
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CO: Crse Outcome
KL: Knowledge Level
M: Marks
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This download link is referred from the post: JNTUK M.Tech R19 2020 Model Question Papers || JNTU kakinada (All Branches)
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