Tectonic theory to consider when generating form

Detailed notes from Design for Flooding: Architecture, landscape and urban design for resilience to climate change (2010) are now considered during the design phase, as part of the cross pollination process between technological modeling and considered design.

As we know flooding is a natural part of Brisbane's hydrological system. Aspects to consider in my design include zone separation, raising the building above minimum flood level codes, designing for severe wind and wave impacts, and choosing materials that are waterproof and resistant to water damage.

When considering my building envelope I wish to design it to be capable of minimising penetration of wind, rain and debris. Structurally this will mean reinforcing my walls and using sealants to reduce seepage of floodwater through walls and wall penetrations. I could also consider installing pumps and back up power generation to control interior water levels if I have an enclosed space close to flood level.

Tectonically, cross bracing would be beneficial in my structure as it provides lateral windhydrodynamic wave and tsunami resistance as well as support to the foundation system. While this may potentially trap debri, I will address this by placing bracing parallel to the primary direction of the brisbane river's downstream flow.

In my membrane I will specify close nail spacing and hold down anchors connected to the foundation with corrosion resistant bolts. The foundation could possibly be grade beams and a pier combination for extra strength so that I don't have to rely on the soils beneath for vertical support considering the whole site goes under in the flood.

Forces to consider are diagrammed well in the image below:

It is also a good idea to consider flood vent openings that will automatically open during a flood to prevent the external wall failing and let the wave's pressure flow through the building. Note this is to be below 250mm above FFL high.

Flood damage resistant materials that I could specify include:
- Glazed brick, concrete block, glass block or stone (With waterproof mortar or grout)
- Steel trusses, beams, panels or hardware
- Naturally decay-resistant lumber, or marine-grade plywood
- Clay, concrete, rubber or steel tiles (with chemical set or waterproof adhesives)
- Cement board or cement fiberboard
- Metal doors, cabinets and window frames with drainage weeps
- Mastic, silicone or polyurethane formed-in-place flooring
- Sprayed polyurethane foam or closed-cell plastic foam insulation
- PVC trim, molding, rail, deck and sheets, impervious to moisture and insects
- Water resistant glue
- Polyester epoxy paint (Mildew resistant paint contains toxic ingredients and should not be used indoors)
- Hot dipped galvonised stainless steel screws and nails

Before going onto the next stage of my form generation, I wanted to be aware of what materials and tectonic options were available to me, and to also practically consider what factors I should be thinking about in terms of resistant architecture.


Watson, D., Adams, M (2010). Design for flooding: Architecture, landscape, and urban design for resilience to climate change. Retrieved from http://reader.eblib.com.au.ezp01.library.qut.edu.au/%28S%281lbjizf2045eal1jugj5ox4e%29%29/Reader.aspx?p=624403&o=96&u=b2PwBbP4uOU4QuPXRPVSPA%3d%3d&t=1302588905&h=87AF126B15D716BA206CE162A36A1BE334D48F71&s=4104035&ut=245&pg=1&r=img&c=-1&pat=n#