Construction Technology and Services 2. Dr S. Sreenath BSc Engg, MSc - - PowerPoint PPT Presentation
5509BESG Construction Technology and Services 2. Dr S. Sreenath BSc Engg, MSc Engg, MSc (ICM), MBA, PhD Mobile : 92473045 Email: sreenivasansreenath@gmail.com Outline Syllabus 1. Demolition 10. Building and Fire 2. Site problems 11. Service
Dr S. Sreenath BSc Engg, MSc Engg, MSc (ICM), MBA, PhD Mobile : 92473045 Email: sreenivasansreenath@gmail.com
Buildings
1. Analyse and illustrate the various forms of superstructure construction for low and high rise building structural frames. 2. Describe and evaluate the various forms of foundations and substructure work for multi-storey buildings. 3. Explain the typical remedial works to multi-storey buildings during refurbishment and adaptation work. 4. Analyse the importance of sustainability in the context of the design and construction
5. Evaluate modern methods of construction and new renewable energy technologies in relation to industrial and commercial buildings. 6. Describe the range of Heating, Ventilating and Air Conditioning systems for industrial and commercial buildings. 7. Describe the installation and integration of utility services to multi-storey buildings.
Learning Outcomes of Assessments
The assessment item list is assessed via the learning
Category Weightage Exam duration Assignment 1 & 2 30% Test MCT – 20 Q 20% 45 min Assignment # 3 50%
Demolition is the tearing-down of buildings and other structures. Low rise buildings is by pulling down either manually or mechanically using hydraulic equipment, elevated platforms, cranes and excavators. High rise buildings are demolished using controlled explosives or by hydraulic breakers.
Permit approvals Method statement submission Protection works Existing utilities termination Notifications Safety document submissions, approvals and briefing. Removing hazardous or regulated materials. Sequence of demolition based on technical considerations.
Demolition of Low Rise Building
Hydraulic excavators are used to topple
two-story buildings by an undermining process. The strategy is to undermine the building while controlling the manner and direction in which it falls. The demolition project manager/supervisor will determine where undermining is necessary so that a building is pulled in the desired manner and direction. Walls are typically undermined at a building's base.
Demolition of High Rise Building
High reach demolition excavators are more often used for tall buildings where explosive demolition is not appropriate or possible. Excavators with shear attachments are typically used to dismantle steel structural elements. Hydraulic hammers are often used for concrete structures and concrete processing attachments are used to crush concrete to a manageable size, and to remove reinforcing steel. The "inside-out" method is used, whereby remotely
the inside, whilst maintaining the outer walls of the building as a scaffolding, as each floor is demolished.
Large buildings, tall chimneys, bridges, and increasingly some smaller structures may be destroyed by building implosion using explosives. Imploding a structure is very fast—the collapse itself only takes seconds—and an expert can ensure that the structure falls into its own footprint, so as not to damage neighboring structures.
VT & VCH
Contract Commencement date : 12 Oct 10 Contract Completion date
Contract duration
Bored piles
Secant bored piles
VT & VCH
VT & VCH
VT & VCH
Life cycle costing of asset
VT & VCH
VT & VCH
VT & VCH
BROKK remote control hydraulic crusher/breaker Diamond Wall Saw Cutting Machine Diamond Coring Machine Hydraulic excavator/breaker Skid Loader 3 ton forklift Electrical drilling machines Electric Grinder Torch cutter 3ton lifting chain block Hand Tools Personal Protection Equipments Lifting Apparatus Wire Ropes Pallet trucks Mist machine Bubble form spay machine
To resolve the problem of dust generated during hacking/crushing works especially within structures.
For effective dust suppression By combining air, surfactant, and minimal water into a highly efficient foam chamber, foam is generated and discharged through chute nozzles.