Journal of World Architecture

A Semantic-Sensitive Approach to Indoor and Outdoor 3D Data Organization

Youchen Wei — 2024-02-26

Building model data organization is often programmed to solve a specific problem, resulting in the inability to organize indoor and outdoor 3D scenes in an integrated manner. In this paper, existing building spatial data models are studied, and the characteristics of building information modeling standards (IFC), city geographic modeling language (CityGML), indoor modeling language (IndoorGML), and other models are compared and analyzed. CityGML and IndoorGML models face challenges in satisfying diverse application scenarios and requirements due to limitations in their expression capabilities. It is proposed to combine the semantic information of the model objects to effectively partition and organize the indoor and outdoor spatial 3D model data and to construct the indoor and outdoor data organization mechanism of “chunk-layer-subobject-entrances-area-detail object.” This method is verified by proposing a 3D data organization method for indoor and outdoor space and constructing a 3D visualization system based on it.

Research on Urban Building Parametric Modelling Method Based on CityEngine

Xinyu Liu — 2024-02-26

With the advancement of technology and the development of cities, urban planning and management methods are also constantly improving. From paper-based assignments to modern digitization, new technologies have enabled more efficient design and management for cities. 3D modeling can used to simulate the urban environment, which can assist in urban planning and management. However, large-scale modeling cannot be achieved through existing modeling methods, and there are still some shortcomings in the maintenance of the model. Therefore, this article proposes a Computer Generated Architecture (CGA) parametric 3D modeling method based on CityEngine. Research on expanding and customizing modeling rules to create indoor and outdoor modeling rule templates for buildings and methods for generating urban 3D models have been carried out. The results have shown that the completed model can be displayed on different platforms thanks to parameterized modeling. The model can be modified easily and directly applied to the analysis and decision-making of urban planning schemes.

Advancements and Applications of Polyurethane Curing Technology in Railway Track Bed Construction in China

Yizhe Li — 2024-02-26

This paper examines the application of polyurethane curing technology in the construction of railway track beds, with a specific focus on its implementation in China’s rapidly developing railway infrastructure. The study begins by identifying the limitations of traditional ballasted track beds, especially under the demands of high-speed and heavyload railways. It then methodically analyzes the advantages of polyurethane-cured track beds, highlighting their improved mechanical properties, including enhanced stability and durability. The paper further explores the benefits of transitioning to prefabricated polyurethane track beds, emphasizing significant cost reductions, better construction quality, and enhanced maintainability. Through a detailed review of experimental data and practical applications, the paper demonstrates the efficacy of polyurethane track beds in various railway settings. A critical part of the research involves optimizing the structural parameters of polyurethane track beds to achieve the best balance of mechanical and damping properties. The conclusion of the paper underscores the potential of polyurethane curing technology as a transformative approach to railway track bed construction, offering a solution to the challenges posed by traditional methods and aligning with the evolving needs of modern railways.

The Determination Method of Product Engineering Features Based on Linguistic Variables

Guo Mao — 2024-02-26

To overcome the problem of imprecise and unclear information in the development of quality functions, a method for determining the priority of engineering features based on mixed linguistic variables is proposed. First, the evaluation member uses the determined linguistic variable to give the correlation strength evaluation matrix of customer requirements and engineering features. Secondly, the relative importance of the evaluation member and customer requirements are aggregated. Finally, the priority of engineering features is obtained by calculating the deviation. The feasibility and practicability of this method are proven by taking the design of a new product of a long bag low-pressure pulse dust collector as an example.

Analysis of Roadbed Splicing at Hub Interchanges

Lizhao Zhao — 2024-02-26

This article discusses the roadbed splicing for hub interchanges. The article starts with a description of the characteristics of junction roadbed splicing. The application of splicing technology is explained using a subgrade splicing scheme of a project. Roadbed splicing involves stepwise excavation and preparative measures like surface cleaning and backfilling. This article serves to provide a valuable reference for road and bridge construction and improve the quality of China’s road and bridge projects, so as to achieve sustainable development of the road and bridge engineering industry.

A Review of Artificial Waterfalls in Gardens

Ni Lan — 2024-02-26

When artificial waterfalls are built in gardens, leaves from trees or vegetation often fall into the water storage pool and block the pipelines, requiring regular cleaning of pipelines. This not only increases the manpower needed for maintenance but also disrupts the use of the waterfalls. Therefore, it is necessary to design a new type of artificial waterfall that is suitable for gardens. The waterfall should incorporate features that make cleaning easier, including filter plates and water funnels to prevent clogging caused by fallen leaves and debris.

Analysis of Safety Assessment and Testing of Heavy Traffic Vehicles on Old Bridges Without Data

Qing Yang — 2024-02-26

This article presents a real-life project that aimed to evaluate the safety of traffic vehicles on old bridges without any prior data. The project involved various safety inspections, including conventional, static, and dynamic load inspections and safety assessments. After conducting these tests, it was concluded that the structure of the old bridge is relatively safe, with only a few bumps. The bridge could function normally following appropriate treatment. The analysis provides valuable insights into the assessment of the quality and safety of such bridges to ensure the safe driving of heavy vehicles.

Analysis of Bridge Inspection Technology for Highway Reconstruction and Expansion

Xu Meng — 2024-02-26

This article focuses on bridge testing technologies in highway construction and expansion projects. It provides an overview of the inspection process for bridges in highway reconstruction and expansion projects, the main inspections, and strategies for improving the quality of inspections. Relevant units should conduct bridge inspections using appearance inspections, special inspections, and bearing capacity assessments in highway reconstruction and expansion projects. To effectively improve testing quality, relevant units should also focus on establishing and improving testing standards, strengthening material testing, and improving the overall quality of the testing personnel. This research aims to enhance the quality of highway reconstruction and expansion projects by supporting the sensible application of bridge inspection technology.

Patterns of Interactions of the Complex City System: Emotional Urban Objects as Triggering Agents – A Secondary Publication

O. A. Gonzalez — 2024-02-26

This article presents an analysis of the patterns of interactions resulting from the positive and negative emotional events that occur in cities, considering them as complex systems. It explores, from the imaginaries, how certain urban objects can act as emotional agents and how these events affect the urban system as a whole. An adaptive complex systems perspective is used to analyze these patterns. The results show patterns in the processes and dynamics that occur in cities based on the objects that affect the emotions of the people who live there. These patterns depend on the characteristics of the emotional charge of urban objects, but they can be generalized in the following process: (1) immediate reaction by some individuals; (2) emotions are generated at the individual level which begins to generalize, permuting to a collective emotion; (3) a process of reflection is detonated in some individuals from the reading of collective emotions; (4) integration/significance in the community both at the individual and collective level, on the concepts, roles and/or functions that give rise to the process in the system. Therefore, it is clear that emotions play a significant role in the development of cities and these aspects should be considered in the design strategies of all kinds of projects for the city. Future extensions of this work could include a deeper analysis of specific emotional events in urban environments, as well as possible implications for urban policy and decision making.

Automatic Sensing and Detection for Subway Tunnel Pathologies

Xingyu Wang — 2024-02-26

Subway tunnels often suffer from surface pathologies such as cracks, corrosion, fractures, peeling, water and sand infiltration, and sudden hazards caused by foreign object intrusions. Installing a mobile visual pathology sensing system at the front end of operating trains is a critical measure to ensure subway safety. Taking leakage as the typical pathology, a tunnel pathology automatic visual detection method based on Deeplabv3+ (ASTPDS) was proposed to achieve automatic and high-precision detection and pixel-level morphology extraction of pathologies. Compared with similar methods, this approach showed significant advantages and achieved a detection accuracy of 93.12%, surpassing FCN and U-Net. Moreover, it also exceeded the recall rates for detecting leaks of FCN and U-Net by 8.33% and 8.19%, respectively.

Analysis of Citizen Participation in Urban Planning of Comala, Colima, Mexico – A Secondary Publication

Amallinaly G. Cardenas Aguilar — 2024-02-26

The objective of this study was to determine the degree of citizen participation in urban planning processes in the municipality of Comala, Colima, Mexico to have a broader vision of the citizens and the environment in which they live. An instrument was designed specifically to perform this study and the instrument was validated by calculating Cronbach’s Alpha. The results showed that citizens were highly involved in issues concerning their urban environment, and the main problems of the public spaces were also identified.

The Limits of Domestic Spatiality in the Information Age – A Secondary Publication

Juan Manuel Lozano de Poo — 2024-02-26

The limits of spatiality have blurred in the information age; a phenomenon that can be observed through the socio-spatial implications of Internet use in the domestic sphere. How and why are the use and organization of space-time around the Internet shaping a new domestic spatiality that intertwines the digital space with the production of social space through the practice of habits, presence, and interaction of individuals? What are the repercussions of the superimposition of digital space on human existence? The units of analysis were integrated through the sum of people and middle-class housing in the face of the digitalization process in the city of San Luis Potosi, Mexico. The questionnaire consisted of 35 questions designed from the Likert scale under the thematic order of presence, interaction, and habituality. The data were analyzed using SPSS software. This research contributes to explaining the current period in the history of inhabitable space, dominated by the simultaneous interrelationships between individuals, digital space, and architecture, which result in the detachment and devaluation of physical domestic space, while also highlighting the lack of control and regulation of individuals over the Internet.

Study on the Influencing Factors and Mechanisms of the Evolution of the Architectural Characteristics of Guangfu Ancestral Halls in the Ming and Qing Dynasties

Yanming Chen — 2024-02-26

This paper discusses ancestral hall architecture within the context of the Cantonese folk lineage in the Pearl River Delta. Using a typological research approach and chronological analysis, various factors that have influenced the evolution of ancestral hall architecture are analyzed. The study specifically investigates the features of ancestral halls during the Ming and Qing dynasties. Three periods of ancient China are analyzed: The transition from Ming to Qing, the mid-Qing dynasty, and the late Qing dynasty. The variables of each period and how they influence the evolution of architectural typological features are identified. Based on our analysis, architectural features are related to economic and social factors, materials available, and craftsmanship of the construction workers.

A Review of Innovative Design Strategies for Prefabricated Green Buildings

Yajuan Liu — 2024-02-26

Prefabricated green buildings are becoming a trend in the construction industry of China. The prefabricated components are made using modern technologies like green materials, artificial intelligence, and low-carbon and energysaving techniques. This makes them an important aspect of the development of the construction industry in China, representing modernization and sustainable development. This article presents a study on the innovative design of prefabricated green buildings. This article serves to promote sustainable development on a macro level.

A Review of the Key Points in the Design of Small-Radius Curved Ramp Bridges

Yuxiao Zhang — 2024-02-26

This article explores the fundamentals of small-radius curved ramp bridges. It covers the selection of box girder spans, support methods, and forms, along with design optimization techniques for this type of bridge structure. The purpose of this paper is to provide robust support for enhancing the design quality of these bridges and ensuring their efficacy in real-world applications.

Analysis of the Application of Span-Bridge Technology for Building Highway Tunnels that Go Over Solutional Caves

Ruiquan Liu — 2024-02-26

This article presents a real engineering project showcasing the application of span-bridge construction technology for building a highway that goes over a solutional cave. An overview of the project and the details of applying this technology in highway construction are provided. Besides, strategies for enhancing its construction quality are also proposed. The objective of this analysis is to improve the safety and quality of similar projects.