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

2. Site problems

3. Substructure

4. Basements

5. Structural Frames

6. Floors

7. External walls

8. Roofs

9. Internal Access

10. Building and Fire

11. Service Integration

12. Sustainable and Intelligent

Buildings

13. Refurbishment Technologies

14. Building Services

15. Health and Safety

Learning Outcomes

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

of multi storey buildings.

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

outcomes listed:

REPORT (Assignment) 1 2

Test #1 6 7

Assignment in lieu of Test #2 3 4 5

Assessment Details

Category

Weightage Exam duration

Assignment 1 & 2

30%

Test MCT – 20 Q

20% 45 min

Assignment # 3

50%

DEMOLITION

1. Intoduction

2. Low Rise Building

3. High Rise Building

4. Controlled Demolition

Outline

Introduction

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.

Demolition

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

one- or 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

operated mini-excavators demolish the building from

the inside, whilst maintaining the outer walls of the

building as a scaffolding, as each floor is demolished.

Controlled Demolition of High Rise Building

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.

Case Study #1 Victoria Theatre

VT & VCH

Construction Programme

Contract Commencement date : 12 Oct 10

Contract Completion date : 11 Oct 11

Contract duration : 12 months

Bored piles : 109 Nos

Secant bored piles : 481 Nos

VT & VCH

Overall Site Plan

VT & VCH

Demolition Stages

VT & VCH

Demolition Stage A

Demolition Stage A

Life cycle costing of asset

Shoring plan

VT & VCH

Shoring Sections

VT & VCH

Piling Sequence Stages

VT & VCH

Equipments used

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

Mist Machine

To resolve the problem of dust

generated during

hacking/crushing works

especially within structures.

Bubble Foam Machine

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.

https://www.youtube.com/watch?v=SaBQ3

AkRetI

Thanks!