NEW
Font size
WorksheetsAAR 551 - CONSTRUCTION TECHNOLOGY2 -WEEK 2 - SUPER STRUCTURE
Total questions: 16
Worksheet time: 8mins
This statement refer to which component of the building structure?
"A vertical member used to support the weight of the beam and upper floors"
Beam
Column
Wall
Foundation
Why column fails?
Column fails when the loads imposed on it, is greater than the allowable strength of the column.
Below are the three (3) common failure modes of column, EXCEPT:
Compression failure - The rebars and concrete yield stress and column fails without undergoing any lateral deformation. (Usually happened to a shorter and wider column)
Buckling failure - The concrete and steel reached their yield stress and start failing due to lateral buckling (Usually happened to a long column)
Shear failure - This is due to non uniform distribution of loads which result in slippage of the transverse planes in the column - a force that tends to produce a sliding failure on a material along a plane that is parallel to the direction of the force.
Expansion failure - Aging or fatigue of the material throughout its service, from supporting pressure or temperature cycles, movements, etc.
This picture show a column failure happened during construction. What is the type of this failure?
Shear Failure
Expansion Failure
Compression Failure
Buckling Failure
This picture shows the concrete flooring design known as:
Flat Plate Floor
Flat Slab Floor
Waffle Slab
Ribbed Slab
The roof slabs are formed and casted in the same manner as concrete floor system.
The above statement is TRUE or FALSE?
TRUE
FALSE
RC Roofing MUST be provided with waterproofing to prevent leakage and water ponding. Waterproofing materials should be carefully considered during construction from various materials and substances, e.g Asphalt built up roof (BUR), Modified bitumen, Hypalon, PVC, TPO and EPDM synthetic rubber. However, there are a situation where POST- CONSTRUCTION WATERPROOFING is needed.
These are the Post construction waterproofing methods EXCEPT:
Pour concrete - re concreting
PU (polyurethane) Injection cracks repair
Torch on waterproofing membrane
Liquid applied waterproofing
What is PARAPET WALL?
Parapet wall - a barrier with extension of wall at the edge of the roof. It is constructed with coping stone with drip edges to prevent façade staining.
TRUE
FALSE
Flat Slab Floor is another form of r.c floor without projecting beams.
Below are the descriptions of Flat Slab Floor EXCEPT:
Efficient structural system than a flat plate with lower stress concentration at column locations.
Also known as mushroom construction because of the expanded column heads.
Drop panels require a higher level of coordination with the services in the ceiling space and may not be architecturally acceptable for areas where suspended ceiling is not envisaged.
Consists of series of parallel r.c T-beams framing (joist) and connected to r.c girders and carried by a column. Max column to column distance can be up to 30m.
These are the advantages of ____________floor design:
- Simplification of formwork
- Reduction in dead weight
- Flat soffit – able to use standard height partition/beam free space/no obstruction
- Possible reduction in floor height, therefore, overall reduction in building height
Waffle Slab
Flat Slab - Drop Panel
Ribbed Slab
Flat Plate
Below are the advantages of this type of floor design EXCEPT:
Hollow block replaces portion of solid concrete reduce dead weight.
Suitable for wide span structure such as carpark, office building and roof.
Need careful supervision required during construction.
Economic span 8-14m.
These are the descriptions of the picture above EXCEPT:
Roof scupper drain is a roof drainage system laid along roof edges.
From scupper drain, rainwater will be channeled to rainwater downpipe and discharged down to parameter drain.
The scupper drain is just an optional components for a RC flat roof design.
Minimum slope/inclination should be less than 10º to allow water run off to the scupper drain.
RC Flat roof always synonym with problems post construction. Below are the disadvantages of the design. Which of this option is NOT TRUE?
Need waterproofing layer to prevent leakage and proper drainage system.
Provision of gutter and rainwater down pipe is essential.
Rectification works for leaking problems become a major work and expensive.
Building plan is more flexible for future extension.
The substructure of a building is the part that is entirely above its foundation or basement. It is the part of the building that is above ground level, and it usually serves the purpose of the building's intended use.
The statement above is TRUE or FALSE?
TRUE
FALSE
Above is the diagram of RC Frame Structural System for a two storey building. What is the best option of floor design for this building?
Ribbed Slab
Floor Plate
Floor Slab
Waffle Slab
What is the type of this beam?
Beam parallel to external wall
Cantilever Beam Frame
Beam at right angles to external wall
Continuous Beam
Do you understand about the super- structure topic?
Yes, I understand clearly.
No, I don't understand at all.
I'm still confuse and need extra class.
I understand but need to do revision on my own.
