Design Of Urban Structures Research Articles

Modeling destructive effects of an explosion in an urban environment using ANSYS AUTODYN

Purpose is to study the impact of explosive waves in an urban environment using comprehensive numerical modeling. A series of simulations were conducted using ANSYS AUTODYN software, allowing us to accurately replicate the dynamics of explosive wave interactions with urban structures. The methods used involves calculations through modeling and analysis of results. The obtained research results demonstrate that the application of numerical modeling with ANSYS AUTODYN allows for highly precise prediction of the influence of explosive waves on urban structures. These methods effectively model complex interactions between explosive waves and the urban environment, providing valuable information for safety measures and urban structure design. Findings. Results demonstrate that the application of numerical modeling with ANSYS AUTODYN allows for highly precise prediction of the influence of explosive waves on urban structures. These methods effectively model complex interactions between explosive waves and the urban environment, providing valuable information for safety measures and urban structure design. The originality lies in the combination of 2D and 3D modeling for a detailed analysis of explosive events in urban conditions, expanding existing knowledge about the interaction of explosive waves with urban infrastructure. Based on the obtained data, measures can be developed to enhance the safety and resilience of urban infrastructure in the event of explosive events, as well as to improve urban environment planning and protection. Practical implementation. Based on the obtained data, measures can be developed to protect urban structures from potential explosive events, including the design of blast-resistant structures, optimization of urban plans considering potential risks, improvement of evacuation systems, and enhancing safety for the civilian population in densely populated areas.

Residential dissonance in TOD neighborhoods

Metro rail transit (MRT) system in Indian urban areas is growing at a rapid rate, to enhance public transportation and decongest the road transportation. To assess the neighborhoods of urban areas it is essential to evaluate the behavioral attitudes of commuters. Existing studies have shown that behavioral attitudes influence residential selection and mode choice, which might result in a dissonance between individuals' preference and actuality in residence. Residential dissonance has become a critical issue that affects commuter mode choice in urban areas. Majority of studies on residential dissonance were conducted in developed countries. This research is still at the infancy stage in developing countries like India. The objective of this study is to fill this gap by evaluating the effect of residential dissonance on commuter mode choice behavior in National Capital Territory (NCT) of Delhi. For this, 2633 individual responses from Transit Oriented Development (TOD) and non-TOD neighborhoods of NCT Delhi were considered. The actual neighborhood types were derived by using Two-step cluster analysis and the preferred neighborhood types were derived by using a binary logit model. The dissonance analysis shows that 23.25% of TOD residents were dissonant in NCT Delhi. The study findings suggest that an attitudinal change of 0.5 units might change an average of 26% of consonance/dissonance levels in TOD neighborhoods. Multinomial Logit (MNL) models were employed to understand the mode choice and dissonance connections. The MNL model results show that the presence of women commuters and their safety will enhance the choice of active transport in TODs and public transport in non-TODs in NCT Delhi. Findings of this study will contribute to the necessary policy implications towards urban structure design and TOD policies to the developing world, especially in the Indian context.

Urban Structure Design Strategy of Energy Conservation

Energy crisis is the major problem that we are facing today. Energy conservation is imminent. In accordance with the idea of asking, analyzing and solving questions, this paper discussed the relationship between urban structure and energy, urban development and energy characteristics of new era, from the perspective of urban design. We proposed several strategies about urban structure design and hope to play on certain references in the practical application.

A study on the design of urban structures in Edo City

Edo had well-woven urban structures composing of waterways and streets, These structural complexities have interested researchers for a long time. The purpose of the study is to understand the principles of design in the residential areas of Edo which had not been fully understood. In the study, using modem surveying aps, the sizes of the blocks and the angles of the crossing streets were measured and analyzed, considering the effect of topography. The authors estimatedand certified the formation of the urban structure in each residential area, and the method in which the blocks were arranged concerning main streets and waterways.

The absorption of solar energy in a courtyard

The absorption of solar energy by a building can only be calculated in a relatively simple way, if it is located on even ground and sufficiently far away from other objects. However, in (sub)urban regions, buildings are normally built so close together that mutual shadow and multiple reflection among the single tracts cannot be neglected. The model ‘ALBYRD’ was developed especially for calculating the absorption within (sub)urban regions. As a typical architectonical urban-structure element, an inner courtyard was chosen. Each facade, roof and the ground of the courtyard has an individual reflectivity; the kind of reflection is specular of diffuse. The model ‘ALBYRD’ allows us to calculate the absorption of the surfaces for any position of the sun. It can be a useful tool in urban structure design.