Planning for Demolition of Building

formulate for destruction of Building depict a derelict create and taking into account factors such as its previous social occasion, condition, geomorphologic features and location, prep be a jut out for the safe end of the expression that identifies the preferred method of death and outlines suitable technical and procedural control measures.The objectives of this report are to identify a derelict building and plan its demolition. The planning has to take account of the specificities of the buildings social system, its previous uptake, the billet, the neighbouring properties and other(a) parameters. mince measures from a wellness and safety point of view rush to be included.The building identify is a very old nice cardinal-storey building that has not been subroutined for m each years.The methodology broods of analysing the existing structure and contiguous properties. A detailed description of the structure has been given and the demolition instalment has bee n chosen in accordance with the structure and in a focussing to cause minimal disruption to other properties and the general public.The actual demolition plan is given in the form of a list of tasks and a brief explanation for each task. The demolition process has been divided into slender phases.The control measures have been incorporated in the plan of the demolition just now a wellness and safety risk assessment has been d iodin that lists the feasible hazards from such a work.1The Derelict Building1.1Structures to be demoli escape fromThis three storey Victorian building is one of three buildings in the same compound that used to abide an old hospital on the site.The other two are also not in use and there are plans to rive them as well but at a later date. The Victorian building is a detached three storey building positioned centrally on the site with a shed used as boiler house on one side.Access is from the entropy side where the building is about 10 m from the road. The Boiler hearth is set to the north of the building but is detached from the principal(prenominal) building. It consists of one tall stone building with attached oil and water tanks. at that place is a network of underground pipes between the boiler house and the Victorian buildings for the furnish of hot water for domestic and heating purposes.As about Victorian buildings of that size, these buildings have certain characteristics that distinguish them from other buildings. The building face is of masonry. The load bearing walls are made of two lines of brick with no chap in between. These external walls rise undisrupted to the roof.The roof consists of square timber rafters academic term on a timber ring beam on poll of the walls. The rafters support a series if rectangular timber purlins that in give support the slate tiles that form the roof. The edges are sealed by beat lead foils.The internal floors are made up of timber joists back up by stone brackets off the bri ck walls. A grid of timber beams are supported off the joists and wooden planks are nailed to the top of the timber beams. The partitioning walls consist of p prevailered timber frames.The buildings also consist of basement that have been sealed some(prenominal) years ago but has not been filled. there is no insulation on the walls and roof and there is no send conditioning installed in the building. The only run are the hot and snappy water pipes, waste pipe pipes and electric wiring. The water pipes date from the pi rophy program face and are of lead. The sanitary drainage pipes also date from original and consist of 5 cast iron pipes and fittings lined with bitumen. The electric wiring has been installed untold later and has been fixed to the timber joists by means of nailed clips.The boiler house is a stone building with corrugated iron sheet roof. It contains a blacken-fired boiler that is out of operation. The boiler is connected to the Victorian buildings via underg round pipes to supply hot water. The Boiler House also contains a large turn of pipe work and fittings as well as a coal pit.1.2Adjacent Land UseThe site is situated between two main roads on the South and atomic number 99 sides and two B-class roads on the North and West sides. The site shares a boundary with a practically newer construction used as NHS clinic which go forth remain in use during the demolition. The site is surrounded completely with 2.5 m tall masonry walls except on the south side. The south side is cordoned by wrought iron fencing. there is no wall between the parking lot of the clinic and the compound.1.3 worldly concern ConditionsGround probes were carried out on samples of the south of the site during the construction of some of the newer buildings. The investigation results are available from the council. Since no new construction is being undertaken in this project, ground information is deemed to be unnecessary.2Description of Works2.1methodological ana lysis2.1.1SurveySince the building has not been in use for a probatory period of period, its exact state is not known even to the client. So the first thing to be done is a full structural survey of the building to assess the danger from hazardous material and to purpose on the best method of carrying out the work. This forget need to be done as early as the tender stage as the information from this survey will be essential for the rest of the work. onward the start of the demolition, a full scale demolition survey will need to be done. This should take account of the following(Holroyd, 1999)Adjoining propertiesThe type of structure and the profound elements in it.The condition of the elements.Any requirement for temporary workings or staging during demolition. are there any throttle spaces.Are there hazards from asbestos, lead, contaminated land, etc?Is access and break out adequate?2.1.2Preferred regularityThe demolition can be carried in a number of ship canal but given the proximity of other properties such as the NHS auction relegate and main roads, the demolition should be carried out in a centering as to minimise disruption to the neighbourhood and also to cause negligible noise level.The demolition should be planned to be carried out in a controlled manner from top to bottom, de-constructing the components in the reverse order of original construction. Demolition balls will be used only as the last resort and no explosive will be used.2.1.3Method educationA method statement needs to be prepared ahead the job starts and should cover (Holroyd, 1999)The sequence and method of demolition noting access/egress details.Pre-weakening details of the structurePersonnel safety, including the general publicService remotion/make safeServices to be providedFlammable problemsHazardous substancesThe use of transport and waste removalIdentity of people with control responsibilities.3Particulars of Work3.1 chassis 1 PlanningBefore the demolition starts, attentive planning is required to ensure smooth operations. It also allows problems to be identified at an early stage. The cost of remedial action at the planning stage is significantly less than that at the demolition stage. So, allocation of time and effort to careful and thorough planning is very important.3.2Phase 2 Site PreparationOnce on site, the demolition cannot start immediately. at that place is a lot of work that needs to be done to make the demolition work possible.Several preventive measures and control measures have to be effected right at the start. It is cheaper and better than to apply remedial action when things go wrong. The planning stage must have identified the areas that need concern and the control measures that are required. The processes involved in the actual demolition are site specific and site preparations must be done accordingly. beneficial site preparation also allows minimal disruption to the neighbourhood.3.3Phase 3 Demolition of Boiler Hous eFrom the risk assessment, it is clear that the boiler house, although such(prenominal) smaller in size that the main building, represents a greater health hazard to the site workers as it contains asbestos, oil tanks, water tanks and a lot of pipe work. To reduce the exposure of the personnel to such risks, it has been decided to smash and make safe the boiler house first before commencement with the main building.3.4Phase 4 Demolition of Main BuildingThe main building will be demolished manually as furthermost as possible. In order to contain the noise and air taint as much as possible, the external walls and roof will be maintained until the entire interior has been demolished. The internal partitions do not lend to the structural strength and stability of the building and it is therefore safe to demolish them. The floors do provide some lateral stability to the walls and will not be removed until an alternative temporary support is not provided to the walls.3.5Phase 5 Site ReinstatementAfter the demolition is complete, the site has to be alter of remaining debris and decommissioning of site offices and other facilities installed for the purpose of the site. The site offices and eudaimonia facilities will be removed. The state of residual contamination has to be assessed and if any remedial action needs to be taken, it should be done. The landscaping should be re-established. Finally, the fencing and screens will be removed and the site eliminateed-over.3.6Other ElementsThe wizard Contractor should also be aware of the followingTraffic trouble, an increase awareness is required for traffic control to and from the site from the South and East sides. The South side adjoins a particularly busy road with several shopping complexes further along the road.Unauthorised access to site from clinic blockUnauthorised access from the main roads.4Control Measures4.1General wellness Hazards4.1.1Operational HazardsElectric shock/burnsStriking existing servicesW orking at heightDisconnecting of existing servicesOperating machinery, equipment, hand tools and mobile plantHot worksManual handlingSlip, trip, drop type injuriesDust / fumesCrush type injuriesContact with libellous substancesWorking in contaminated groundWorking in confined spaces4.1.2Hazardous Construction MaterialsMaterials within the project with the potential to cause a hazard to health and safetyAggregatesFuel oilsSandGlass graphic symbol insulationSewageGlassWood treatment productsUsed drainage pipesDustCementMasticsSealantsPaintsFloor Mastics / gluesAsphaltFumes4.2CDMThe Construction (Design and Management) Regulations came in effect in UK 31st March 1995. The main duties of the five key parties (CIRIA, 2001) areThe Client shall appoint a competent planning executive program and principal contractor for each projectThe Designer should design structures to avoid, wherever possible, foreseeable risks to health and safety during construction, maintenance and cleaning wo rk. Information should be provided on unavoidable risks. Design includes the preparation of specifications and not limited to calculations and drawings.The Planning Supervisor the organisation or person with overall responsibility for ensuring co-ordination of the health and safety aspects of the design and planning phase, the early stages of the health and safety plan and health and safety file.The Principal Contractor develops the construction-phase health and safety plan and manages and co-ordinates the activities of all contractors to ensure they comply with health and safety legislation. They have duties relating to the readying of information and training on health and safety for everyone on site and the coordination of employees views working on site.Contractors and the Self-Employed must co-operate with the principal contractor and other contractors and provide relevant information on the risks created by their work and how they will be controlled.5References Bibliograp hySite Safety Handbook, 3rd Edition,CIRIA, 2001Brown, D. The Construction (Design and Management regulations 1994 Advice for Designers in Steel, Steel Construction Institute, 1997.Holroyd, Trevor M, Site Management for Engineers, Thomas Telford, 1999CIRIA, environmental Handbook for Building and Civil Engineering Projects Construction Phase, Thomas Telford, 1998Managing Demolition and Construction Wastes, Department of the Environment, 1994Demolition of Special Structures, The concrete Society, 1984Safety in Demolition Work, Health and Safety Executive, 1979