Concrete strength of fck should be used. Reinforcement grade of fy should be used. Preliminary section should be selected as rectangular width (b) x depth (h) (mm). • A sketch of the final cross-section details should be shown ● ● Steps: Design of concrete beam: 1. Design loads 2. Design moments and shear 3. Concrete cover 4. Flexural reinforcement and details (inc. drawing) 5. Check for ductility 6. Shear reinforcement L (m) 2 (m) 4.55 22.2 Structural Data H (m) t (mm) 3.3 122 Beam Strength Column Strength fa (MPa) f, (MPa) fa (MPa) , (MPa G (kPa)| Q(kPa) 3.55 4.55 25.5 472 30.5 472
Concrete strength of fck should be used. Reinforcement grade of fy should be used. Preliminary section should be selected as rectangular width (b) x depth (h) (mm). • A sketch of the final cross-section details should be shown ● ● Steps: Design of concrete beam: 1. Design loads 2. Design moments and shear 3. Concrete cover 4. Flexural reinforcement and details (inc. drawing) 5. Check for ductility 6. Shear reinforcement L (m) 2 (m) 4.55 22.2 Structural Data H (m) t (mm) 3.3 122 Beam Strength Column Strength fa (MPa) f, (MPa) fa (MPa) , (MPa G (kPa)| Q(kPa) 3.55 4.55 25.5 472 30.5 472
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:(b) Design the Beam B-B for the maximum sagging section only. Your design should consider the ultimate
limit state and serviceability limit state, and the following points:
• Concrete strength of fek Should be used.
Reinforcement grade of fy should be used.
Preliminary section should be selected as rectangular width (b) x depth (h) (mm).
• A sketch of the final cross-section details should be shown
Steps:
Design of concrete beam:
Structural Data
Beam Strngth Column Stergth
Colum Strength
1. Design loads
2. Design moments and shear
222 33
122 3.55 455 25.5
472 305
472
3. Concrete cover
4. Flexural reinforcement and details (inc. drawing)
5. Check for ductility
6. Shear reinforcement
7. Span/depth calculation
8. Serviceability check
Transcribed Image Text:Figure 1 shows the plan view of an exhibition hall with dimensions L, x L2. The structure is to be
constructed in a coastal region which will be exposed to mostly mild environmental conditions, and should
provide a 1.5 hour fire resistance. It is known that the underlying foundation soil contains sulfate and
other organic compounds.
The layout of the structure consists of portal frames which are spaced evenly along the L; direction. The
frames are to support a slab of thickness (t) that will cover the full area of the hall plan. The dead and live
loads applied on the slab are G and Q (kPa), respectively.
Figure 2 shows the elevation view of Frames B and D. All columns have a floor-to-floor height (H) and are
monolithically connected to the beams. Columns are also fixed to the foundation at the base, and it may
be assumed that all frames are fully braced.
в с D E F
А в с D E FG
Figure 1: Plan of exhibition hall.
D
D1
D2
D3
L1
L1/2
L1/2
Figure 2: Elevation of Frames B and D.
B.
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