Parametric bridge design – reinforcement design

2021 ◽  
Author(s):  
Jaroslav Navrátil ◽  
Petr Ševčík ◽  
Johann Stampler ◽  
Gregor Strekelj
Keyword(s):  
Construction Industry ◽  
Design Process ◽  
Prestressed Concrete ◽  
Planning Process ◽  
Analysis Model ◽  
Bridge Design ◽  
Proof Checking ◽  
Challenging Tasks ◽  
Stress States ◽  
Reinforcement Design

<p>Using BIM technology for the design process in the construction industry has become somewhat of a standard approach. For bridge design, various solutions offering geometric design functionality and data management facilities are available on the market. However, integrated solutions for seamlessly supporting the whole planning process are still a scarce commodity. The solution presented integrates architectural modeling, structural analysis, and sophisticated proof checking functionality in one package, where, based on a 4D architectural model, an analysis model is automatically derived, allowing for simulating the erection process in detail and investigating all relevant stress states. The focus of the paper is the reinforcement design of prestressed concrete sections, which is one of the most challenging tasks among the various requirements arising in the design process.</p>

scholarly journals Ensuring the aerodynamic stability of the long-span bridges through studies in the wind tunnel

2018 ◽  
Vol 245 ◽  
pp. 02001 ◽  
Author(s):  
Evgenii Khrapunov ◽  
Sergei Solovev
Keyword(s):  
Wind Tunnel ◽  
Design Process ◽  
Aerodynamic Characteristics ◽  
Elastic Instability ◽  
Experimental Facility ◽  
Bridge Design ◽  
Aerodynamic Stability ◽  
Long Span Bridges ◽  
Long Span ◽  
Main Ideas

The main ideas of the aerodynamic studies of large bridges are presented in present paper. Main types of aero-elastic instability for bridges with spans over 100 meters are considered. A two-step modeling approach is presented. At the first stage, the aerodynamic characteristics of the span fragment are considered, at the second.stage the characteristics of the whole bridge. Methods for investigation of bridge oscillations in a special-purpose experimental facility – the Landscape Wind Tunnel – are described. Examples of tests with elastic similar models of bridges are given, and measurements to mitigate dangerous oscillations early in the bridge design process are described.

scholarly journals Sustainable finance and the construction industry: new paradigms for design development

2021 ◽  
pp. 79-85
Author(s):  
Giancarlo Paganin
Keyword(s):  
Construction Industry ◽  
Design Process ◽  
Sustainability Assessment ◽  
Sustainable Growth ◽  
Private Capital ◽  
Construction Sector ◽  
Design Development ◽  
Assessment Systems ◽  
Sustainable Finance ◽  
Social Components

Enabling sustainable growth is highly dependent on the ability of private capital to invest in projects capable of achieving sustainability objectives divided into the three economic, environmental and social components. The international financial system has defined criteria for assessing the sustainability of investments, also applicable in the construction sector. Still, these criteria do not always appear integrated with the sustainability assessment systems developed by the AEC (architecture, engineering and construction) industry. This article proposes reflections on the relationships between the sustainability indicators of sustainable finance and those typically used in the AEC industry with the purpose of identifying possible impacts on the disciplines involved in the design process.

OPERATIONAL ANALYSIS IN SYSTEM DESIGN OF SUBMARINES DURING THE EARLY PHASES

2021 ◽  
Vol 157 (A1) ◽  
Author(s):  
M Nordin
Keyword(s):  
Design Process ◽  
Customer Participation ◽  
Analysis Model ◽  
System Effect ◽  
Operational Analysis ◽  
Technical Performance ◽  
Initial Design ◽  
Simulation Based Design ◽  
Technical Solutions ◽  
Early Phases

This paper presents a new method for operational analysis (OA) as a tool in simulation based design (SBD) for Naval Integrated Complex Systems (NICS), here applied to the submarine domain. An operational analysis model is developed and described. The first step of the design process is to identify and collect the needs from the customer and stakeholders, from which requirements can be deduced and designed in an organized way, i.e. requirement elucidation. It is important to evaluate the benefits or penalties of each requirement on the design as early as possible during initial design. Thus the OA-model must be able to evaluate requirements aggregated in synthesised ships such as initial concepts, i.e. Play-Cards, as representations of a submarine concept in the functions domain where the first set of requirements are designed, and establish their Measure of Capability (MoC) and Measure of Effectiveness (MoE). The work has resulted in an OA-model for submarine design that can be used during the development and for evaluation during the life cycle of a submarine system. The purpose of integrating OA in the design process is to explore the design space and evaluate not only technical solutions and cost but also the system effect in the early phases and thereby find and describe a suitable design room. This will generate a more rapid knowledge growth compared to the classic basic ship design procedures which focus on technical performance and cost. It is expected that we not only reach a higher level of knowledge about the design object but also achieve higher precision in the compliance to needs and deduced and designed requirements by the use of an OA-model as an integrated tool during initial design. This approach also invites customer participation within the framework of integrated project teams.

scholarly journals A Systematic Review of the Role of BIM in Building Sustainability Assessment Methods

2020 ◽  
Vol 10 (13) ◽  
pp. 4444 ◽  
Author(s):  
José Pedro Carvalho ◽  
Luís Bragança ◽  
Ricardo Mateus
Keyword(s):  
Systematic Review ◽  
Construction Industry ◽  
Design Process ◽  
Sustainability Assessment ◽  
The Other ◽  
Design Phase ◽  
Building Information Modelling ◽  
Current Role ◽  
Building Information

Building Information Modelling (BIM) is creating new opportunities for the Architecture, Engineering and Construction industry. One of them is the integration of the Building Sustainability Assessment (BSA) during the design process. Currently, an approach for using BIM to foster and optimise the application of BSA methods has not been clearly established yet, creating a knowledge gap on the application of BIM for sustainability assessment purposes. Thus, this paper analyses the current role of BIM to evaluate three BSA methods—LEED, BREEAM and SBTool. The current BIM applicability is assessed by performing a systematic review, where the criteria being assessed and the applied BIM software are identified. A comparison is made to determine which BSA method can currently take more advantage from BIM and to identify the number of assessed criteria from each one. Furthermore, the attractiveness of a BIM-based assessment for SBTool is analysed, facing the actual BIM scenario for LEED and BREEAM. Despite the restrictions, BIM use is increasing for sustainability purposes. Most of the analysed studies and identified software are still focused on the use of LEED for assessing sustainability during the design phase. However, BIM software capabilities can also support the assessment of the other BSA methods so that process replicability can happen. Among the most addressed criteria, the energy and material-related categories are the most eminent. Autodesk Revit is the most-used software. A BIM-based assessment for SBTool will have enough attractiveness. It can assess, at least, the same percentage of criteria as the other schemes, creating new opportunities to enhance building sustainability.

Toward 21st Century Bridge Design through Collaborative Design Process

2010 ◽  
Vol 97 (17) ◽  
pp. 55-60
Author(s):  
Namhee K. Hong ◽  
Hyun-Moo Koh ◽  
Sung-Gul Hong
Keyword(s):  
Design Process ◽  
21St Century ◽  
Collaborative Design ◽  
Bridge Design

Simple Discussion on Development, Influence and Future of Parameterization Design

2014 ◽  
Vol 584-586 ◽  
pp. 19-25 ◽  
Author(s):  
Long Zhang ◽  
Yu Bo Gao ◽  
Yu Bo Gao ◽  
Yu Bo Gao
Keyword(s):  
Construction Industry ◽  
Design Process ◽  
Digital Technology ◽  
Design Thinking ◽  
Euclidean Geometry ◽  
Design Method ◽  
Dynamic Design ◽  
Construction Design ◽  
Traditional Design ◽  
Parameterization Design

With development of nonlinear construction theory and digital technology, parameterization construction design has drawn extensive attention in construction industry as a new method of solving complex problems in construction. Parameterization design method has broken through the qualitative and transcendental design methods for design issues in the traditional design process. After getting rid of the form constraint of Euclidean geometry, generation of construction space and form is on the judgment basis of quantized data. Such bottom-up dynamic design process has broken through imprisonment of traditional form and construction design has returned to the original point of rational creation. In this paper, a certain foundation is laid for theoretical researches on development, influence and future of parameterization design from the aspects of parameterization design concept, tool, scheme generation, its influence on design thinking, etc.

A Heat Transfer Model for the Conceptual Design of a Biomass Cookstove for Developing Countries

2013 ◽  
Author(s):  
Nordica MacCarty ◽  
Kenneth M. Bryden
Keyword(s):  
Heat Transfer ◽  
Conceptual Design ◽  
Design Process ◽  
Developing World ◽  
Construction Material ◽  
Heat Transfer Analysis ◽  
Transfer Model ◽  
Analysis Model ◽  
Essential Information ◽  
Heat Transfer Efficiency

The use of biomass cookstoves to meet household energy needs has a profound impact on the life and health of individuals, families, and communities in the developing world. This paper introduces an experimentally validated heat transfer analysis model for use during the conceptual design process of a biomass cookstove to be used in the developing world. This steady-state model of a shielded, natural-draft biomass cookstove fitted with a flat-bottomed pot with pot-shield was developed using published experimental data that included 63 variations of 15 operating, geometrical, and material variables. The model provides the essential information needed to support decision making during the cookstove conceptual design process by predicting heat transfer efficiency as a function of stove geometry, construction material, firepower, and fuel moisture content.

Carbon Footprint Analysis of Fibre Reinforced Polymer (FRP) Incorporated Pedestrian Bridges: A Case Study

2012 ◽  
Vol 517 ◽  
pp. 724-729
Author(s):  
Jian Guo Dai ◽  
Tamon Ueda
Keyword(s):  
Construction Industry ◽  
Carbon Footprint ◽  
Prestressed Concrete ◽  
Environmental Friendliness ◽  
Pedestrian Bridge ◽  
Reinforced Polymer ◽  
Pedestrian Bridges ◽  
Fibre Reinforced Polymer ◽  
Footprint Analysis

This paper presents a case study on the carbon footprint of a fibre reinforced polymer (FRP)-incorporated pedestrian bridge in comparison with a conventional prestressed concrete (PC) one. The CO2 emission is used as an index and calculated for both the material manufacturing and the construction processes. It is shown that using an FRP-incorporated pedestrian bridge to replace a conventional prestressed concrete (PC) bridge may reduce the CO2 emission by 18% and 70%, respectively, during the material manufacturing and construction periods, leading to a total reduction by about 26%. Such reduction is expected to be more significant if the life-cycle CO2 emission is accounted for, since the former type of bridge is free of corrosion and almost maintenance-free. Therefore, FRP-incorporated bridges may become a more competitive alternative to conventional reinforced concrete (RC) or PC ones with the increasing attention paid on the sustainability and environmental friendliness of construction industry by our society.

Behaviour Analysis of Prestressed Concrete Deck-Tied Arch Bridge

2013 ◽  
Vol 671-674 ◽  
pp. 952-956 ◽  
Author(s):  
Yi Qiang Xiang ◽  
Li Chang Zhang ◽  
Qiang Qiang Wu
Keyword(s):  
Prestressed Concrete ◽  
Internal Force ◽  
Analysis Model ◽  
Box Girder ◽  
Arch Bridge ◽  
Long Span ◽  
Prestressing Force ◽  
Horizontal Thrust ◽  
Tied Arch Bridge ◽  
Concrete Deck

The prestressed concrete deck-tied arch bridge doesn’t only have a long span, good appearance and economy, but also have the characteristics of low requirements to the foundation. It changes traditional tied arch bridge into deck-tied arch bridge, which looks like sunflower-shaped arch and prestressed steel strands are embedded in box girder on the top of the arch. Taking Yingbin Bridge as engineering background, the reasonable analysis model was established and behaviour of the bridge under design load was analyzed. The results shown that the design project is reasonable, prestressing force embedded in box girder can balance horizontal thrust in arch bridge effectively, improving the internal force of the main arch ring.

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