Research Articles (Civil Engineering): Recent submissions
Now showing items 1-20 of 58
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Development of a deterministic design model for a high-rate algal pond
(South African Water Research Commission, 2018-09-25)ENGLISH ABSTRACT: Inadequate wastewater treatment is a major problem in South Africa. Existing wastewater treatment facilities often lack sufficient skilled labour, resulting in partially treated effluent. Increasing ... -
Associations between stormwater retention pond parameters and pollutant (suspended solids and metals) removal efficiencies
(South African Water Research CommissionPublisher's version, 2018)ENGLISH ABSTRACT: Presented in this paper are the results of correlational analyses and logistic regression between metal substances (Cd, Cu, Pb, Zn), as well as suspended solids removal, and physical pond parameters of ... -
Analysis of water use by gated communities in South Africa
(South African Water Research Commission, 2018)ENGLISH ABSTRACT: Gated communities (hereafter GCs) are popular in many countries, including South Africa, because added security and lifestyle improvements are offered relative to homes built on freestanding properties. ... -
Study of the Durban Bight shoreline evolution under schematised climate change and sand‑bypassing scenarios
(South African Institution of Civil Engineering, 2018-12)ENGLISH ABSTRACT: The Durban Bight beaches, on the KwaZulu-Natal coast of South Africa, have been the topic of several studies in the past, because of their recreational and economic value. These beaches are mainly nourished ... -
Uncertainties in the South African wind load design formulation
(South African Institution of Civil Engineering, 2018)This paper presents an investigation of the uncertainties inherent in the South African formulation of design wind loads on structures, as stipulated by SANS 10160-3:2011. The investigation follows from the identification ... -
Sewer network design layout optimisation using ant colony algorithms
(South African Institution of Civil Engineering, 2018)The optimal design of sewer networks typically comprises two sub-problems. The first is to determine an optimal layout of the network elements, and the second to optimally design the network components. In this article the ... -
Impact of discounted professional fees on the risk exposure of civil and structural engineering services consultants in South Africa
(South African Institution of Civil Engineering, 2018-03)ENGLISH ABSTRACT: The abolition of mandatory fee scales and the prevalence of lowest-cost bidding for the procurement of consulting services in South Africa have seen engineering services consultants compete based on price ... -
Evaluation of locally available synthetic macro fibres in a single-fibre pullout test in concrete
(South African Institution of Civil Engineering, 2018-03)ENGLISH ABSTRACT: There is increasing use of synthetic macro fibres in concrete applications. However, the performance of these fibres varies, based on various factors. This study investigates the fibre/ matrix interface ... -
Reliability assessment of the South African wind load design formulation
(South African Institution of Civil Engineering, 2018-09)ENGLISH ABSTRACT: The representation of the strong wind climate and the reliability calibration of wind loading are the main components of the provisions for local conditions in the South African wind load standard. The ... -
The effect of aeration through an internal gallery of a dam on the cavitation risk of Roberts splitters
(South African Institution of Civil Engineering, 2018)ENGLISH ABSTRACT: Roberts splitters is an effective means of energy dissipation for dam spillways. Roberts' (1943) standard unaerated splitter design procedure is, however, limited to a spillway head (H) of 3.0 m (q ~ 12 ... -
Traffic characteristics and bridge loading in South Africa
(Journal of the South African Institution of Civil Engineering, 2017-12)ENGLISH ABSTRACT: The loading model of the Technical Manual for Highways (TMH-7) published for bridge design in South Africa is in need of revision and simplification. The frequency of heavy vehicle loads has increased ... -
Sewer network design : heuristic algorithm for hydraulic optimisation
(South African Institution of Civil Engineering, 2017-09)ENGLISH ABSTRACT: For a given sewer network layout and choice of pipe material, the total installed cost of the network is determined mainly by the pipe diameters and slopes. Hydraulic design optimisation is the task of ... -
Revised regional sediment yield prediction methodology for ungauged catchments in South Africa
(South African Institution of Civil Engineering, 2017-06)ENGLISH ABSTRACT: This paper presents the research on the revision of the regional probabilistic method (Rooseboom et al 1992) for the prediction of catchment sediment yields in South Africa. The determination of sediment ... -
Review of climatic input data for wind load design in accordance with SANS 10160-3
(South African Institution of Civil Engineering, 2017-12)ENGLISH ABSTRACT: With the publication of Part 3 Wind Actions of the South African Loading Code SANS 10160:2010, several issues concerning adjustments from the reference standard Eurocode EN 1991-1-4:2004 could not be ... -
Planning for desalination in the context of the Western Cape water supply system
(South African Institution of Civil Engineering, 2017-03)ENGLISH ABSTRACT: As water demands continue to grow, South Africa is starting to consider seawater desalination as a potential future supply source, and it is currently being investigated at a feasibility level in a number ... -
Development of an updated fundamental basic wind speed map for SANS 10160-3
(South African Institution of Civil Engineering, 2017-11)ENGLISH ABSTRACT: This paper evaluates the need for updating the strong wind climate stipulations of South Africa for the design of structures in accordance with SANS 10160-3:2010, as based on the latest information presented ... -
An investigation into the evidence of seasonal rainfall pattern shifts in the Western Cape, South Africa
(South African Institution of Civil Engineering, 2017-12)ENGLISH ABSTRACT: Climate change is a highly contentious topic in the modern world. There is much evidence to indicate that climatic shifts and extreme weather anomalies are taking place globally, in some places more ... -
Alternative wall‑to‑slab connection systems in reinforced concrete structures
(South African Institution of Civil Engineering, 2017-09)ENGLISH ABSTRACT: In many reinforced concrete structures the walls precede the construction of the connecting floors. A system is, therefore, required to connect the floors to the already cast walls. There are many different ... -
Interventions to promote the use of seat belts
(Cochrane, 2014-07-24)This is the protocol for a review and there is no abstract. The objectives are as follows: To assess the effects of interventions promoting the use of seat belts. -
Supplementary household water sources to augment potable municipal supply in South Africa
(South African Water Research Commission, 2017-10)ENGLISH ABSTRACT: This paper addresses on-site supplementary household water sources with a focus on groundwater abstraction, rainwater harvesting and greywater reuse as available non-potable water sources to residential ...
