Download TEMPORARY WORKS LATEST EXAM and more Exams Advanced Education in PDF only on Docsity!
END OF PAGE Excavation may be required depending on ... - ANSWERS-Soil type, depth and project scope Timbering, trench box, sheets with waling, post and planks can all be used for .... - ANSWERS-Deep excavations and unstable soil Caissons definition - ANSWERS-Cylindrical precast concrete units for the construction of shafts, underground storage or tunnel lining Scaffolds provide ... - ANSWERS-Access and platforms for working at heights Scaffolds consist of .... - ANSWERS-Ledgers, ties, bracings, toe boards and guard rails Scaffold designs are based on .... - ANSWERS-The permissible stress philosophy Falsework supports the ... - ANSWERS-Permanent works until they are self-supporting
EXAM
END OF PAGE 2 Examples of falseworks - ANSWERS-1. Formwork
- Supports for precast units
- Façade retention Formwork enables ... - ANSWERS-The desirable shape of concrete to form Formwork is made from ... - ANSWERS-Timber, steel, glass-fibre, plastics Formwork is designed from .... - ANSWERS-Pressure generated by fresh concrete vs height Temporary works definition - ANSWERS-Any construction of temporary nature required to enable the permanent works to be built Temporary works may become incorporated ... - ANSWERS-Into the permanent works
EXAM
END OF PAGE
2. LOLER 98
3. MHSW 99
4. CDM 2015
CDM 2015 sets out the .... - ANSWERS-Responsibilities of the client, designer and contractor Temporary works design can be undertaken by ... - ANSWERS-1. Suppliers of proprietary equipment
- Contractors team
- Third party firm The 5 clauses of the CDM that apply to temporary works - ANSWERS-
- 19: stability of structures
- 20: demolition
- 22: protecting sides of excavations
- 23: cofferdam and caisson
- 24: reports and inspection
EXAM
END OF PAGE 3 Controls that section 2 of BS 5975 set out in temporary works - ANSWERS-1. Preparation of register and design brief
- Design checks: of brief, layout, drawings and risks identified
- Onsite checks
- Procedures for alterations and communication
- Permits to load and dismantle Legislative requirements and operational efficiency govern ... - ANSWERS-Site setup Main contractor must ... - ANSWERS-Design and erect the crane base as temporary works Load transfer, wind loads and interaction with permanent works are ... - ANSWERS-To be considered at the design stage of a crane 3 Types of cranes - ANSWERS-1. Mobile
- Static
- Luffing
EXAM
END OF PAGE Waler frames Hydraulic/mechanical struts What are examples of Structures in TW? Formwork (Shuttering) for RC Beams, Columns, Walls Falsework (Supports)for Slabs Scaffold Propping Façade Retention Steel Shutters Edge Protection Temporary Bridges Loading Bays Signage Hoarding What are examples of Plant in TW? Mobile Crane Hoists Mast Climbers Tower Crane Bases What causes TW to go wrong? No/Inadequate TW procedure Lack of competent contractor/developer/builder
EXAM
END OF PAGE No (or inadequate) TW design When TW goes wrong Failure to carry out proper investigation of ground conditions, underground services or structural condition of existing buildings Unauthorised changes to an approved TW design Inappropriate use of TW equipment Lack of competence from the TW designer, management and/or installer What are the consequences when TW go wrong? Structural failure and/or collapse of the permanent works; Uncontrolled ingress or egress of materials, spoils or water; Collapse of adjacent structures; Risk of fatalities and injuries to workers and members of the public; Delays and increased costs - litigations Financial & commercial risks to contractors, subcontractors, designers, suppliers & clients. How can TW be prevented from going wrong? BS 5975:2019 provides recommendations and guidance on the procedural controls to be applied to all aspects of temporary works in the construction industry.
EXAM
END OF PAGE It should include all data relevant to the design of the temporary works and should be prepared in good time to allow for any revision What is the typical TW Team on a Project? Temporary Works Co-Ordinator Temporary Works Supervisor Temporary Works Designer Temporary Works Design Checker What is the role of the Temporary Works Supervisor (TWS)? The Temporary Works Supervisor (TWS) is responsible to the TWC for assisting in the supervision and checking of all temporary works during installation, usage, maintenance and dismantling on a project. Must be competent, suitably qualified and have the relevant experience in assessing temporary works Co-ordinates all temporary works activities, ensuring: A TW registers established and kept up to date A TW design brief is prepared To determine the risk class associated to the TW on a project A satisfactory TW design is produced A permit to load/unload is issued All changes to the TW design are managed and co-ordinated Checks are carried out of the erected, in use and dismantled temporary works on a
EXAM
END OF PAGE contract Ensure weekly site inspections are carried out of all TW's items onsite. What is the role of the Temporary Works Co-Ordinator (TWC)? recognised as an important safety critical role responsible for the coordination and management of all activities associated with temporary works on the contract. First point of contact between the designer and the site TW team. Key TW Roles on a Project Ensures co-operation between permanent and temporary design; Must be competent = experience + a formal qualification, e.g. Degree/HND qualified as a minimum and has completed formal temporary works training, engineering knowledge and understanding. Co-ordinates all temporary works activities, ensuring: A TW register is established and kept up to date A TW design brief is prepared To determine the risk class associated to the TW on a project satisfactory TW design is produced A permit to load/unloadis issued Allchangesto the TW design are managed and co-ordinated Checksare carried out of the erected, in use and dismantled works on a contract Ensure weekly site inspections are carried out of all TW's items onsite.
EXAM
END OF PAGE Before erection commences onsite, the temporary works design should be checked by the TWC to establish the correct level of risk associated with the TW design. The higher the risk, the higher level of independent checking required within the design check. The risk class set out in the design check ranges from CAT 0 to 3 The design check should be carried out by an independent competent person(s) Recommendations for various categories of design check are given in Table 1 of BS5975:2019.
EXAM
