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Submission of entry by Alfresco Arch UN Resilient Homes Design Challenge
2018/19
Plexiglass window panel Arc rib constructed of compressive material and timber wrapped in membrane PVC membrane AID ARC CORE ARCHITECTS PAN PRODUCTS www alfrescoarch com aid arc TRANSFORMATIONAL SHELTER The Aid Arc has evolved from a long ongoing relationship between Core Architects and Pan Products to develop a simple pre tensioned structure The actual arch component is a patented product developed for a masonry arch former used on the St Pancras Station extension Patent No GB 2417255 From this and following simplification to the technology various building types have evolved The design has been advanced and refined through various building types from simple animal shelters through to school classrooms to the point where its developed into the Aid Arc global shelter Adjacent Bar Ply outer shell PVC membrane Timber box ringbeam filled Local ballast Transformational Shelter Basic Model QUICK WOOD BURNER Fast shelter for those in need LIVING SLEEPING SIMPLE Families can be taught to build for themselves Thrust Pin Spoke Bar Voussoir The fundamental element of the design is the component parts that form the arc structure LOCAL Materials can be sourced locally to create the finished Aid Arc STRONG Rigid and strong the Arc shape naturally Withstands extreme conditions TRANSITIONAL Start with a shelter and over time transform into a family home The construction process for this is noted elsewhere in the presentation however a summary of the technical structural process is as follows A circle is fitted into a socket at the end of the two adjacent bars on either side of the axis of the circle A spoke bar is pivotally connected to the centre of the two adjacent bars See diagram A force is applied to the top centre of the circle increasing compression through the two adjacent bars and the circle whilst simultaneously increasing tension through the spoke bar A thrust pin is placed through the spoke bar and the hole in the circle to retain the thrust and the top centre force is removed If a greater force than that used to pre tense voussoir is applied it compresses and tenses to the point where the thrust pin contacts with the top of the hole in the circle When the greater force is removed the voussoir will spring back onto its original position When the thrust pin contacts the top of the hole in the circle it has moved downwards towards the axis of the curve causing the two adjacent bars owned by the voussoir to pivot downwards and the adjacent bars belonging to the voussoir at either side of it to pivot upwards which causes those alongside them to pivot downwards Resulting in each voussoir resisting the force applied to the other by counteracting OUTLINE BUDGET COST Budgets based on real life costs of materials in UK for Aid Arc units Material Costs for one standard unit 1 144 70 87 00 sq m The noted costs are based on UK prices Transport costs will need to be added to these If general materials ply timber battens pvc sheeting etc could be sourced locally the unit costs could be reduced The costs noted in the schedule of rates are for one standard unit The design proposal in the submission indicates linking 2 units with semi covered external space to meet the accomdation standards This gives an internal living space area of 41 sq m The costs for this would equate to 2 unit costs plus the external space ie One unit 1 444 70 One unit 1 444 70 Link 620 00 Total 3 509 40
Plexiglass window panel Arc rib constructed of compressive material and timber wrapped in membrane PVC membrane AID ARC CORE ARCHITECTS PAN PRODUCTS www alfrescoarch com aid arc TRANSFORMATIONAL SHELTER The Aid Arc has evolved from a long ongoing relationship between Core Architects and Pan Products to develop a simple pre tensioned structure The actual arch component is a patented product developed for a masonry arch former used on the St Pancras Station extension Patent No GB 2417255 From this and following simplification to the technology various building types have evolved The design has been advanced and refined through various building types from simple animal shelters through to school classrooms to the point where its developed into the Aid Arc global shelter Adjacent Bar Ply outer shell PVC membrane Timber box ringbeam filled Local ballast Transformational Shelter Basic Model QUICK WOOD BURNER Fast shelter for those in need LIVING SLEEPING SIMPLE Families can be taught to build for themselves Thrust Pin Spoke Bar Voussoir The fundamental element of the design is the component parts that form the arc structure LOCAL Materials can be sourced locally to create the finished Aid Arc STRONG Rigid and strong the Arc shape naturally Withstands extreme conditions TRANSITIONAL Start with a shelter and over time transform into a family home The construction process for this is noted elsewhere in the presentation however a summary of the technical structural process is as follows A circle is fitted into a socket at the end of the two adjacent bars on either side of the axis of the circle A spoke bar is pivotally connected to the centre of the two adjacent bars See diagram A force is applied to the top centre of the circle increasing compression through the two adjacent bars and the circle whilst simultaneously increasing tension through the spoke bar A thrust pin is placed through the spoke bar and the hole in the circle to retain the thrust and the top centre force is removed If a greater force than that used to pre tense voussoir is applied it compresses and tenses to the point where the thrust pin contacts with the top of the hole in the circle When the greater force is removed the voussoir will spring back onto its original position When the thrust pin contacts the top of the hole in the circle it has moved downwards towards the axis of the curve causing the two adjacent bars owned by the voussoir to pivot downwards and the adjacent bars belonging to the voussoir at either side of it to pivot upwards which causes those alongside them to pivot downwards Resulting in each voussoir resisting the force applied to the other by counteracting OUTLINE BUDGET COST Budgets based on real life costs of materials in UK for Aid Arc units Material Costs for one standard unit 1 144 70 87 00 sq m The noted costs are based on UK prices Transport costs will need to be added to these If general materials ply timber battens pvc sheeting etc could be sourced locally the unit costs could be reduced The costs noted in the schedule of rates are for one standard unit The design proposal in the submission indicates linking 2 units with semi covered external space to meet the accomdation standards This gives an internal living space area of 41 sq m The costs for this would equate to 2 unit costs plus the external space ie One unit 1 444 70 One unit 1 444 70 Link 620 00 Total 3 509 40
Plexiglass window panel Arc rib constructed of compressive material and timber wrapped in membrane PVC membrane AID ARC CORE ARCHITECTS PAN PRODUCTS www alfrescoarch com aid arc TRANSFORMATIONAL SHELTER The Aid Arc has evolved from a long ongoing relationship between Core Architects and Pan Products to develop a simple pre tensioned structure The actual arch component is a patented product developed for a masonry arch former used on the St Pancras Station extension Patent No GB 2417255 From this and following simplification to the technology various building types have evolved The design has been advanced and refined through various building types from simple animal shelters through to school classrooms to the point where its developed into the Aid Arc global shelter Adjacent Bar Ply outer shell PVC membrane Timber box ringbeam filled Local ballast Transformational Shelter Basic Model QUICK WOOD BURNER Fast shelter for those in need LIVING SLEEPING SIMPLE Families can be taught to build for themselves Thrust Pin Spoke Bar Voussoir The fundamental element of the design is the component parts that form the arc structure LOCAL Materials can be sourced locally to create the finished Aid Arc STRONG Rigid and strong the Arc shape naturally Withstands extreme conditions TRANSITIONAL Start with a shelter and over time transform into a family home The construction process for this is noted elsewhere in the presentation however a summary of the technical structural process is as follows A circle is fitted into a socket at the end of the two adjacent bars on either side of the axis of the circle A spoke bar is pivotally connected to the centre of the two adjacent bars See diagram A force is applied to the top centre of the circle increasing compression through the two adjacent bars and the circle whilst simultaneously increasing tension through the spoke bar A thrust pin is placed through the spoke bar and the hole in the circle to retain the thrust and the top centre force is removed If a greater force than that used to pre tense voussoir is applied it compresses and tenses to the point where the thrust pin contacts with the top of the hole in the circle When the greater force is removed the voussoir will spring back onto its original position When the thrust pin contacts the top of the hole in the circle it has moved downwards towards the axis of the curve causing the two adjacent bars owned by the voussoir to pivot downwards and the adjacent bars belonging to the voussoir at either side of it to pivot upwards which causes those alongside them to pivot downwards Resulting in each voussoir resisting the force applied to the other by counteracting OUTLINE BUDGET COST Budgets based on real life costs of materials in UK for Aid Arc units Material Costs for one standard unit 1 144 70 87 00 sq m The noted costs are based on UK prices Transport costs will need to be added to these If general materials ply timber battens pvc sheeting etc could be sourced locally the unit costs could be reduced The costs noted in the schedule of rates are for one standard unit The design proposal in the submission indicates linking 2 units with semi covered external space to meet the accomdation standards This gives an internal living space area of 41 sq m The costs for this would equate to 2 unit costs plus the external space ie One unit 1 444 70 One unit 1 444 70 Link 620 00 Total 3 509 40