conditions under which a structural engineer would select to use prestressed concrete over reinforced concrete for a pedestrian bridge.
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- State whether each of the following statements is correct, and try to correct the false statements. 1. The "Superstructure" is the part of the bridge that is responsible for transferring structural loads to the foundations of the bridge. 2. Girder (or deck) bridges are better than steel truss bridges if longer spans are required. 3. Serviceability limit states are related to loss of strength and the accumulation of damage and eventual failure under repeated loads. 4. The primary reinforcement in slab bridges is parallel to the direction of the traffic. 5. Dynamic load allowance must be considered for all types of loading listed in AASHTO HL-93 loading. 6. The design output of the empirical and traditional design methods of girder bridges must be always identical. 7. The quantity of distribution steel in slab bridge is dependant on the thickness of the slab. 8. The empirical slab design method in girder bridges was merely derived based on the flexural behavior of the superstructure. 9.…Write the assumptions made for analyzing the flexural behaviors of reinforced concrete beams.For unreinforced concrete carriageway, what is the sequence of closing andopening of expansion joints and contraction joints?
- Critically evaluate timber, steel and reinforced concrete and their structural efficiency in managing bending, shear and deflection. Thank you..Discuss the suitability of different types of column supported by RC slab.What type of material can we use for bridge? If we using concrete then how will we improve the structure?
- Reinforced concrete-Explain with the diagramWhat are the primary structural components of a typical reinforced concrete building?I. Answar questions 1. What aspects should be considered when designing high-rise structures? 2. What is the definition of tall building ? 3. How many structural systems can be used in high-rise buildings? 4. What is the shear wall? 5. What are the generally the most important serviceability limit state?. 6. What is the advantage and disadvantage of frame structure?
- Reinforced concrete design Question 4.1For long spans in bridges, using prestressed concrete is usually more suitable than regular reinforced concrete. Why? Explain.A concrete structure with a minimum dimension of 250mm, concrete cover of 38 mm, and rebar spacing of 30mm clear. Determine between size 19 and 25 mm can be suitable for this structure.
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