Vol :37 Issue No.1 2012 - Open House International

More documents

Recommendations

Info

Donovan Gottsmann and Amira Osman open house international Vol.37 No.1, March 2012 Environments of change: an Open Building approach... Figure 4. Phased growth of service core to servant spine that elements can be connected to each other, because their measurements are all based on the same sequence.” (Osman & Herthogs, 2010). The Hendrickx‐Vanwalleghem Design Approach (HVDA) integrates both DfD and “Design for Compatibility” (DfC) into a design strategy based on process analysis and control (Debacker et al., 2006). It presents a set of guidelines to design multiple adaptable and reusable constructional components which are compatible with each other. Thus, these components can be used to design a variety of adaptable and reusable constructional sub‐assemblies. The result is a “generating system” where a limited number of basic elements and a set of combination rules allow more complex entities to be “generated”. This method therefore focuses on the life cycle of the building components (Osman & Herthogs, 2010). Therefore, the proposed structure allows for future adaptations by attaching and fixing standard components to the primary structure. Thus the design is not limited to a specific kit of parts but is rather a structural configuration undergoing constant evolution according to best practice at a particular moment in time. Thus, these components can be used to design a variety of adaptable and reusable constructional sub‐assemblies. The common construction method in the townships is that of the block/brickwork house and the steel clad shacks. The former, mostly constructed through government subsidies, uses wet works construction and typically contributes to the establishment of more permanent settlements. In the more established wards of Mamelodi, this structure is very often manipulated by the land owners with 7 8 additions, extensions and alterations. Its counterpart, the ‘Zozo Hut’, is constructed in like fashion and has established itself amongst the informal business enterprises. It is also commonly erected on formal stands and is used as a rentable outbuilding. The Zozo Hut is often seen as a temporary solution to housing due to its ability to be relocated with the user. The existing construction culture gives rise to an opportunity to examine an architecture based on disassembly and re-assembly. For this project, these two systems are taken into consideration with regards to achieving a degree of permanence with the option of changeability. Thus the criteria for material and construction demands ease of transport, on-site assembly using local labour, self-informing assembly by unskilled labour, labour-intensive operation, piece assembly and erection, skills transfer, low skills operation, economic viability, little or no heavy machinery to be used, limited need for electricity (thus requiring the majority of work to be done by manual labour with no welding). This has led to the consideration of a steel structure with predrilled holes at determined increments to be fixed with nuts and bolts (Figures 5 and 6), assembled on site with the ability to reuse the components upon disassembly, relocation or manipulation of the structure. Lightweight cold-formed steel sections are ideal as a building material. The advantages are that this form of structure is lightweight, has a high strength-to-weight ratio, high stiffness and comes in various shapes and sections which can allow for additions and alterations with minimal wastage. The material is non-combustible and allows for prefabrication of parts, compact packaging and accu-
ate assembly. Hydraform dry-stacking blocks have the following dimensions 120-240mm long x 220 or 140mm wide x 115mm high with typical strength values of 4-7MPa. This method is considered as infill in this project as these blocks are ideal for remote regions as they are produced on-site by means of a mobile or stationary block-making machine. The interlocking dry-stacking blocks require minimal mortar and are produced from Laterite (building sand/sub soil) and 5-10% cement. Hydraform uses soil cement Compressed Earth Block (CEB) technology. Blocks do not need Figure 5&6. Adaptable steel structures composed of modular parts to be burnt and need a minimum of 7 days curing. Hydraform equipment is made locally and the franchise provides full training and support. Mobile block making machines need low-skilled operation with little or no dependence on higher skills. Thus it is labour intensive with almost all of the production and construction process occurring on-site. It is thus cost-effective and fast to use. Finnbuilder box shuttering dimensions are 480 mm (length) x 220, 150 or 110 mm (wall thickness) x 240 mm high and allow for straight as well as circular walls. Finnbuilder is a slip form shuttering system whereby a shuttering mechanism is 7 9 open house international Vol.37 No.1, March 2012 Environments of change: an Open Building approach... Donovan Gottsmann and Amira Osman
Page 1 and 2:
open house international w w w . o
Page 3 and 4:
Contents o pe n ho use inte rnat io
Page 5 and 6:
Previous Issues Vol.36 No.2 2011 OP
Page 7 and 8:
Editorial The composition and subje
Page 9 and 10:
Figure 1. Lima: the PREVI quarter t
Page 11 and 12:
Figure 3. Remodelling of PREVI hous
Page 13 and 14:
Table 1. The three PREVI-PP1 techno
Page 15 and 16:
Figure 9&10. Tabibloc: rationalised
Page 17 and 18:
to evaluating technical capabilitie
Page 19 and 20:
nition and custom treatment’ at t
Page 21 and 22:
Industrialised Building System (IBS
Page 23 and 24:
Table 2. Correspondence between sat
Page 25 and 26:
Table 5. Aspects of respondents’
Page 27 and 28:
Table 9. Counts on renovation jobs
Page 29 and 30: LARSON, K., INTILLE, S., MCLEISH, T
Page 31 and 32: 2008). Disaster preparedness relies
Page 33 and 34: especially when these agencies have
Page 35 and 36: STR ATEGIC PLANNING OF POST-DIS- A
Page 37 and 38: housing. The Ministry awarded the w
Page 39 and 40: Table 1. Importance placed on the v
Page 41 and 42: JOHNSON C. 2007, Impacts of prefabr
Page 43 and 44: Figure 1. Map of Old Seoul, the cir
Page 45 and 46: Figure 3. Remodeled hanoks in Bukch
Page 47 and 48: Figure 5. Although contemporary han
Page 49 and 50: R EF ERENCES ANDERSON, B.R. 1983, I
Page 51 and 52: cases, have been exclusively occupi
Page 53 and 54: typical floors with standard plans
Page 55 and 56: design creates a relationship betwe
Page 57 and 58: healthier building. Finally, Yeang
Page 59 and 60: Figure 7 a&b. The sky bridges as pu
Page 61 and 62: ing as a shading device. As the mai
Page 63 and 64: Figure 10. The reconsideration of t
Page 65 and 66: Figure 12. A diagram for the propos
Page 67 and 68: pleasant environment for residents
Page 69 and 70: (roof and facade) in whole or part;
Page 71 and 72: DED [Department of Economic Develop
Page 73 and 74: Abstract ENVIRONMENTS OF CHANGE: AN
Page 75 and 76: of the poor in identifying and occu
Page 77 and 78: Figure 1. Location of Phumolong inf
Page 79: Figure 3. View of the informal sett
Page 83 and 84: Figure 8. Phased growth of building
Page 85 and 86: Abstract Ahmed Abu Al Haija Hundred
Page 87 and 88: disciplinary approach, proposing so
Page 89 and 90: egorize the different kinds of stru
Page 91 and 92: Figure 8. Schematic plan of dwellin
Page 93 and 94: Bardeschi, 2004). C ONC LU SIONS Th
Page 95 and 96: Abstract A READING IN CRITICAL REGI
Page 97 and 98: artificial, visual and tactile, myt
Page 99 and 100: tion of the built environment (Fram
Page 101 and 102: (Tümertekin, 2010). Tümertekin be
Page 103 and 104: Figure 14. Rear View of the SM Hous
Page 105 and 106: Figure 16. B2 House (photo by Cemal
Page 107 and 108: DECISION MAKING FOR FLEXIBILITY IN
show all

Vol :37 Issue No.1 2012 - Open House International

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?