formwork failures
Post on 16-Oct-2014
178 Views
Preview:
TRANSCRIPT
FORMWORK FAILURESTENGKU ROHANI BINTI ENGKU MUDAREEZMA HAZEERA BINTI ROHIMINURBAIDURI BINTI ABDUL HAKIMSITI SAYIDATUL DURRAH BINTI KHAZALLEMOHD NORHAFIZI BIN TUGIMIN
INTRODUCTION
Formwork important things in completion a project impact to the cost, time, and quality of
project Formwork failures
big impact to the people involved in a project
Not occur-follow the form of design
TYPES OF FAILURES
Dimensional inaccuracy Lifting of single faced forms Propping inadequate Loss of material Surface blemishes
DIMENSIONAL INACCURACY
CAUSES
Miscommunication Error in calculation Lack of supervision Unskilled worker Material did not have proper protection
SOLUTION
The engineer should done site investigation and measure the right dimension to be used especially when steel formwork been used and need to be order from factory
Use new technology-laser
Each parties play their duties Supervisor supervise worker.
Gave proper protection to material
LOSS OF MATERIAL
LOSS OF MATERIAL
Refer to ties and props - are not correctly spaced Formwork tying
connect the two faces of the double faced forms together and affect the balance of the force between them
Formwork props Support formwork
CAUSES OF FAILURES
Inappropriate chose the type of ties Ties are not be installed or screw tightly Over tightening the ties The space between each props are not
correctly/sequence
PREVENTIONS Choose the right ties Check the accuracy on formwork installation
during the ties installation Space between the installed props to avoid
any loss material from the concrete. The engineer of the record make sure
contractor has all the design data such as live loads, superimposed dead loads, any other information which related to the
project
top related