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Tuesday, April 14, 2015

Method Statement -Shear Stud Installation

1.0    OBJECTIVE
     
Outline the method statement for installation of shear stud for Station Concourse Level.

2.0    SCOPE

This method statement shall be used for shear stud installation works for (your project name).

This method statement is prepared based on current site condition; the method statement is subjected to revise / amendment as if the project site condition changes.

The longitudinal shear connection between the steel section and the concrete is provided by shear connectors, which normally take the form of studs welded to the top of the steel section. All connectors should be capable of resisting uplift forces caused by the tendency for the slab to separate from the beam as it bends. In the case of shear studs this is achieved by the head of the stud. Although shear connectors ensure adequate fixing of the decking to the beam, they are not needed simply to achieve this. They should only be used when it is desired to achieve composite action between the slab and the steel beam.

3.0    RESPONSIBILITY

·       Erection Supervisor
·       Site Supervisor
·       Project Engineer

4.0    MATERIALS

·       Shear stud connectors
 
5.0    PLANT, MACHINERY AND EQUIPMENT

·       Stud welding machine (400kg)
·       Generator set (4 ton)
·       Scaffolding
·       Spot light for night working purpose
·       Sky lift  

6.0    WORK METHODOLOGY
                                 I.       Before installing the shear stud connector, make sure all the painting has been removed and free from dust on top of the steel.
                               II.       Generator (4 ton) will be placed on the ground and stud welding machine (400kg) will locate on top of the hollow core slab.
                              III.       Mark all the shear stud location and make sure check by consultant before start the installation shear stud.
                             IV.       The working radius for the installation shear stud is 18m.
                               V.       Make sure the shear stud gun is perpendicular to the steel surface to ensure the shear stud is in 90 degree.
                             VI.       Once the shear stud is weld on the steel surface, make sure the shear stud is fully welded.
                            VII.       Bend testing should be conducted after the shear stud is weld on the steel beam. Practically 2-5 percent of the shear stud shall be tested and selected by consultant.

7.0    SAFETY ISSUES

For safety reasons there are precautions that need to be taken during installation.

·         Make daily check on all lifting equipment.
·         Make daily checks on all lifting slings.
·         Check that all access equipment is in good condition, including scaffolding and ladders.
·         Check weather conditions, strong winds are dangerous during erection and sheeting.
·         Check overhead electric lines before moving in.
·         Check that all installer have the correct personal safety equipment, helmet, safety shoes, safety harness and etc.
·         Check electric cables for hand tools, discard frayed or split cables.
·         Ensure permanent bracing and flange stays are installed as work proceeds.
·         Ensure that high strength bolts are used where indicated.
·         Maintain a clean and tidy. Thus avoid material loss or accident.
·         Ensure that high strength bolts are correctly tightened.
·         The site shall be kept clear of unnecessary obstruction.
·         First aid kit boxes will be provided at site office.

·         Workers to use safety harness for work at height and provision of scaffolding for access.

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