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A retaining wall 4.5 m high with vertical back supports a backfill with horizontal surface. The unit weight of the fill is 18 kN/m3 and the angle of internal friction is 36°. The angle of wall friction may be taken as 18°. A footing running parallel to the retaining wall and carrying a load of 18 kN/m is to be constructed. Search the safe distance of the footing from the face of the wall so that there is no increase in lateral pressure on the wall because of the load of the footing.
Analysis of presress In pre-stressed structural elements, stretched tendons are placed inside concrete. The tensile stresses of the tendons are transferred to concrete in the
Calculate the Tension Force in Sling The rigging configuration shown below will be used to lift a bridge girder using a 200-ton capacity luffing jib crane onto the foundation a
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State the effect of the induction of the pre-stresses The net effect of the induction of the pre-stresses shall be to decrease the tensile stresses (produced due to the exte
States of stress - principal stresses: Now let us consider a few cases of solids of the similar material (mild steel) under various states of stress as display in Figure. The
After measuring the anticipated traffic for the bridge, cement/reinforced- with- rebar stanchions are spaced over the freeway to accommodate the bridge. An 'off-ramp' from the free
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What is the minimum radius, R min , that can be used on a horizontal curve with a 70 mph design speed, a maximum superelevation, e max = 8%, and a side friction factor, f = 0.10?
sfd and bmd of simple supported beams in c++
Soil in Road Construction: Road Embankment and Sub-grade Soil is mainly used as the material for constructing a road embankment. The road embankment supports the road
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