Testing to destruction of Vinoan composite profile metal deck panels was implemented to establish a proposed design method for this class of floor, incorporating its particular profile, shear connectors and etch priming specifications, and involving the deck as main reinforcement. Based on the modes of failure and stress resultants at critical sections a method of design is put forward involving a shearmoment interaction technique and the critical stresses of concrete modulus of rupture and average bond value. Recommendations on local detailing are included.
One method of designing and constructing a retaining wall is using mechanically stabilised earth. A number of similar technologies fall under the heading of mechanically stabilised earth walls (MSEW s), each claiming to be distinct or having a particular advantage, but essentially performing or using similar theory in their respective design processes. The application of all MSEW technology relies on good construction practice, careful selection of backfill soil, compaction and moisture control without neglecting drainage management.
A second-generation transition beam has been designed and developed by Transnet Freight Rail (TFR) and Infraset Railway Products. Transition beams smooth out the difference in resilience between normal ballast-mounted rail track and the concrete-mounted track found in tunnels.
A critical national constraint in the delivery of housing remains the lack of availability of bulk infrastructure. The increasing disparity between bulk municipal services capacity and the services demands of housing delivery has emerged as a critical constraint in South Africa.
Standard (SANS 517) for light steel frame building published
New structural tube steel launched
The world's smallest and lightest hydrodemolition unit
Ensuring water for our future
DHV signs giant contract for Indonesian sanitation project
Updated pipe and portal culvert handbook for engineers and specifiers
WSP completes major road rehabilitation project in the Free State
Mapei repairs highway pillars
Elematic SA achieves SABS mark in fast and smooth audit
Construction sector displays optimism in the eye of financial storm-KPMG survey
This year we at SAICE are stepping up our game by taking a fresh approach to the annual Project Awards. With a unique line of attack, we will be looking at ALL projects: big, small, medium, unusual - you name it, we'll have a section for your project to compete in.
The philosophical study of ethics is an in-depth look at the nature of the core ideologies that any civilized society is built upon: good and bad, right and wrong, justice and injustice. Ethics maintains the stability of society without imposing regulations for every act (Sober 2005).
There is an urgent need to build the required capacity to tackle the immense task of rehabilitating or reconstructing South Africa's failing road network, which the AA currently estimates will cost more than R72 billion.