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Tian, Cong (author), Wei, Xiaosheng (author)An improved method based on the ring test called eccentric ring test is used to study the cracking of cementitious materials. The water-cement ratios were 0.25, 0.30, 0.35, 0.4 and the aggregate mass fractions were 10%, 30%, 50%, respectively. It was found that with the increase of water-cement ratio and aggregate, the cracking time of the...conference paper 2021
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MU, Song (author), XIE, Deqing (author), LIU, Jianzhong (author), ZHANG, Yunsheng (author)The parameter equations of circle, Elliptic and arbitrary polymorphic were deduced by polar coordinates transformation in this paper, and a 2D reconstruction method of irregular particles based on cellular automata theory was introduced, briefly. The particles size and quantity information could be automatic computed by a sectional calculate and...conference paper 2021
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Han, Weiwei (author), Chen, Huisu (author), Zhang, Tao (author)Magnesium ammonium phosphate cement (MAPC) has been commonly applied in civil engineering. However, the analysis of hydration behavior and composition of solid assemblages still needs further exploration. From thermodynamic simulation, it is shown that the molar ratio between MgO and NH4H2PO4 (M/P ratio) determines the final composition of...conference paper 2021
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Nawasiya Mudiyanselage P, Milinda Piyasena (author)Urbanization process governs by the market mechanism tend to marginalize the poor into squatter settlements (Davis, 2006, pp. 1-19). UN-HABITAT report in 2003 shows that 30% of the urban population lived in such settlements and trend becomes severe in coming decades (UNHABITAT, 2003). An inherent characteristic of squatter settlements is lack of...conference paper 2019
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- Cavagni, A. (author), Cremonesi, S. (author), Tanda, M.G. (author), Giliberti, M.D. (author), La Torre, L. (author), Zanichelli, G. (author), Pavan, S. (author) conference paper 2017
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Durmisevic, Elma (author), Berg, Marc C. (author), Atteya, Ussama (author)Instead of designing buildings as static structures with one end of life option (demolition) circular buildings should be open upgradable platforms, transformable structures that can accommodate changing use and technical requirements across their whole Life Cycle. Rather than destroying buildings while adapting them to fit into new requirements...conference paper 2017
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Piegay, N. (author), Breysse, D. (author)This paper aims to present an evaluation, optimization and comparison approach for the design of isolated spread foundations in an uncertain environment. The choice of the optimal solution is made according to the decision-maker's preferences to find the best compromise between various conflicting objectives. Furthermore, this approach takes...conference paper 2015
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Thajeel, J. (author), Al-Bittar, T. (author), Ahmed, A. (author), Soubra, A-H. (author)The failure probability of geotechnical structures with spatially varying soil properties is generally computed using Monte Carlo simulation (MCS) methodology. This approach is well known to be very time-consuming when dealing with small failure probabilities. One alternative to MCS is the subset simulation approach. This approach was mainly...conference paper 2015
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Daryani, K.E. (author), Mohamad, H. (author)This paper studies the effect of soil spatial variability on bearing capacity of shallow foundations. The stochastic soil property is the undrained shear strength considered as a non-Gaussian random variable. The random variable is simulated using Local Average Subdivision Method. A Monte Carlo simulation approach is followed in combination with...conference paper 2015
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Yuan, J (author), Papaioannou, I (author), Straub, D. (author)Landslide events often occur after rainfall events during which the pore water pressure builds up within surficial soil layers, leading to shallow slope failure. The spatial variability of the permeability parameters of the soil causes high gradients in pore water pressure when the rainwater infiltrates into the slope. In this paper, we compute...conference paper 2015
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Effati Daryani, M.B. (author), Bahadori, H. (author), Daryani, K.E. (author)The paper contrasts results obtained by the partially factored limit state design method and a more advanced Random Finite Difference Method (RFDM) in a benchmark problem of slope stability analysis with random undrained shear strength parameter. Local Average Subdivision method was used to simulate a non-Gaussian random variable. The key...conference paper 2015
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Li, L. (author), Chu, X. (author)The need for system failure probability, pf , of soil slope stability that takes into account the spatial variation of soil properties has been acknowledged by the geotechnical profession. The spatial variations of cohesion and friction angle for a c-ϕ soil slope were modeled by one dimensional vertical random field respectively. The cross...conference paper 2015
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Hara, T. (author), Kato, T. (author), Nonoyama, M. (author), Otake, Y. (author), Honjo, Y. (author)This paper proposes a seismic risk management scheme for long continuous geotechnical structure, such as road embankment, water canal and so on. In this scheme, the continuous variation of responses, the failure probability and the risk, 50m intervals for instance, of the structure can be estimated with using response surface method. The detail...conference paper 2015
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We propose a new definition of the length scale in an eddy-viscosity model for large-eddy simulations (LES). This formulation extends and generalizes a previous proposal [Piomelli, Rouhi and Geurts, Proc. ETMM10, 2014], in which the LES length scale was expressed in terms of the integral length-scale of turbulence determined by the flow...conference paper 2015
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Skejic, R. (author)This paper provides overview of the currently available theoretical methods and their capabilities in relation to simulations of the maneuvering behavior of displacement type of ships in a seaway. It has been considered that the ships are engaged in typical type of maneuvers such are for example Zig-Zag and Turning maneuvers according to IMO...conference paper 2013
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Hasegawa, K. (author)This is the recent review of authors researches since last workshop held in Shanghai. The algorithm of automatic collision avoidance system and other functions used in Marine Traffic Simulation System (MTSS) and Imazu problem with sample simulation result using MTSS were introduced in the previous workshop. In this paper some results of free...conference paper 2013
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Van Westrenen, F. (author)This paper presents a design for a cognitive navigator model based on Rasmussens model of skill- rule- and knowledge-based behaviour. The basic assumption is that navigators do not attempt to minimise the deviation from a track-line but attempt to realise efficiency and safety by balancing prediction and mental workload. The resulting model is...conference paper 2013
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(author)A so-called Design Process Investigation toolbox (DPI toolbox), has been developed. It is a set of computational tools that simulate spatial-structural design processes. Its objectives are to study spatial-structural design processes and to support the involved actors. Two case-studies are presented which demonstrate how to: (1) study the...conference paper 2013
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Turrin, M. (author), Chatzikonstantinou, I. (author), Tenpierik, M.J. (author), Sariyildiz, S. (author)The paper tackles the integration of engineering performance simulations in the conceptual phase of architectural design, with specific focus on parametric design processes. A general framework is exemplified, in which the use of performance simulations and the learning process of the designer are discussed in relation to the parameterization...conference paper 2013
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Foged, I.W. (author)The paper presents a developed method and algorithm to create environmental sustainable optimised forms based on the solar energy received in relation to receiving, containing and distributing energy. Different studies are created based upon this approach, to which forms are evaluated against conventional building geometries. The work shows a...conference paper 2013