Effect of Construction Errors in Cable Forces of Single-Story Orthogonal Cable Network Structures Based on GA-BPNN DOI Creative Commons
Zeqiang Wang,

Guoliang Shi,

Zhansheng Liu

et al.

Buildings, Journal Year: 2022, Volume and Issue: 12(12), P. 2253 - 2253

Published: Dec. 17, 2022

The construction process of cable net structure is complicated, which leads to the strong randomness errors. safety state very sensitive Obtaining coupling relationship between errors and force response efficiently accurately critical developing technique structures. This paper proposed an analysis method based on a genetic algorithm optimized back propagation neural network (GA-BPNN) judge influence error single-layer orthogonal Taking speed skating stadium 2022 Winter Olympic Games as research object, this analyzed form venue. According characteristics GA-BPNN calculation, principle was put forward. load-bearing cables stable analyzed. degree different component structural forces obtained, most unfavorable key components were obtained. For components, trend analyzed, fitting formula given. Driven by GA-BPNN, it can realize mechanical responses under action multi-type, multi-component, multi-combination results show that obtains performance law error, effectively predicts influencing factors risk, avoids accidents caused error. in provide reference for similar application.

Language: Английский

Innovations in Energy-Efficient Construction: Pioneering Sustainable Building Practices DOI Creative Commons
Ali Akbar Firoozi, D.O. Oyejobi, Ali Asghar Firoozi

et al.

Cleaner Engineering and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 100957 - 100957

Published: March 1, 2025

Language: Английский

Citations

3
Application of Alkali-Activated Sustainable Materials: A Step towards Net Zero Binder DOI Creative Commons
Bhagyashri A. Lanjewar, Ravijanya Chippagiri,

Vaidehi A. Dakwale

et al.

Energies, Journal Year: 2023, Volume and Issue: 16(2), P. 969 - 969

Published: Jan. 15, 2023

Economic growth and rapid urbanization have resulted in the increase demand for infrastructure development. To meet this ever increasing demand, conventional construction materials such as concrete are used, which requires an energy intensive process that turn impacts environment adversely. Ordinary Portland Cement, being dominant binder industry, contributes around 8% of worldwide annual carbon emissions, is expected to reach 20% by 2050. Population has significant agro-industrial waste generation during recent years. Inadequate management raises a number environmental concerns. With growing economy rising living standards, global raw material consumption double 2060. The reutilization will aid their management, while conserving available resources. Alkali-activated (AAM) recently been introduced eco-friendly alternative binders with fewer impacts. AAM reduce need Cement (OPC) substituting it supplementary cementitious (SCM), therefore, reducing amount subsequent emissions. Alkali activation complex chemical between precursors (alumino-silicate materials) dissolution activators. Different react alkali activators different ways depending on properties. current study aims provide critical review potential wastes fresh hardened properties alkali-activated (AAC). understand design development AAC, influencing parameters molarity NaOH, activators, ratio discussed detail. curing regime its effect behavior mentioned. admixtures used regulate AAC highlighted. exhibited optimized embodied energy, operational life cycle cost, CO2 emission, rates than did. However, these results varied based them. This paper focuses should be viewed important contribution towards adoption practical applications. presents net zero making sustainable enhanced

Language: Английский

Citations

20
3D-Printable Concrete for Energy-Efficient Buildings DOI Creative Commons

Manideep Samudrala,

Syed Mujeeb,

Bhagyashri A. Lanjewar

et al.

Energies, Journal Year: 2023, Volume and Issue: 16(10), P. 4234 - 4234

Published: May 21, 2023

Rapid construction with an energy-efficient approach is a major challenge in the present industry. Cement, carbon-intensive material, mainly used industry and hence increases sector’s carbon footprint on environment. The current review focuses study of 3D concrete printing (3DCP), which cement partially replaced industrial byproducts such as ground granulated blast furnace slag (GGBS), fly ash, silica fume. Walling material primarily targeted 3DCP. There need to include energy efficiency achieve thermally comfortable life cycle assessment (LCA) studied discover potential conflicts affecting sand-to-binder ratio pivotal determining performance concrete. content supplements decided based this factor. rheological, physical, mechanical properties 3DCP are further analysed. GGBS demonstrates better compressive flexure strength usage ash fume has reduced thermal conductivity whereas increased it. An LCA shows that can be made sustainable use these supplementary cementitious materials.

Language: Английский

Citations

14
Key barriers and mitigation strategies towards sustainable prefabricated construction – a case of developing economies DOI
Janappriya Jayawardana, Malindu Sandanayake,

Supun Jayasinghe

et al.

Engineering Construction & Architectural Management, Journal Year: 2024, Volume and Issue: unknown

Published: May 16, 2024

Purpose The present study aims to identify significant barriers adopting prefabricated construction (PFC) in developing economies using a Sri Lanka and develop an integrated strategy framework mitigate overcome the obstacles. Design/methodology/approach research process included comprehensive literature review, pilot study, questionnaire survey for data collection, statistical analysis qualitative content analysis. Findings Ranking method revealed that all 23 were significant. Top include challenges component transportation, high capital investment costs lack of awareness benefits PFC among owners/developers. Factor clustered six barrier categories (BCs) fit factors, explaining 71.22% cumulative variance. Fuzzy synthetic evaluation BCs significantly influence adoption Lanka. Finally, proposed mitigation strategies mapped with complete framework. Practical implications outcomes are relevant industry stakeholders Lanka, who keen enhance efficiencies. can also benefit policymakers formulate policies regulations solutions. Originality/value provides deeper insights into prefabrication South Asian countries such as Furthermore, is novel contribution be used derive actions economies.

Language: Английский

Citations

5
Development and characterization of new lightweight waste-based plaster composites for building applications DOI
Alicia Zaragoza-Benzal, Daniel Ferrández, Paulo Santos

et al.

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 96, P. 110525 - 110525

Published: Aug. 20, 2024

Language: Английский

Citations

5
Evolving Job Roles of Women in the Construction Industry DOI
Aba Essanowa Afful, Cynthia Wang, Riza Yosia Sunindijo

et al.

Journal of Construction Engineering and Management, Journal Year: 2025, Volume and Issue: 151(3)

Published: Jan. 9, 2025

Language: Английский

Citations

0
Upcycling Automobile End-of-Life Tires for Development and Characterization of Circular Plasterboards DOI Open Access
Alicia Zaragoza-Benzal, Daniel Ferrández Vega,

Cecilia Aguilar-Simón

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(2), P. 558 - 558

Published: Jan. 13, 2025

The number of end-of-life tires (ELTs) has increased enormously in the world during last decades, accumulating progressively landfills and ecosystems. For this reason, application secondary raw materials derived from their recycling become one great challenges for today’s society. In work, different types prefabricated plaster products were developed incorporating recycled rubber aggregates ELTs granulometries, aiming to study feasibility develop construction systems. It was possible replace up 40% original material, obtaining plasterboards that exceed 0.18 kN flexural breaking load established by regulations. Likewise, addition these reduced thermal conductivity gypsum composites, resistance lightened partitions improved 21.8% when used conjunction with break layer. On other hand, its greater durability against action water also tested, fire class B-s1, d0, obtained. With all positive results, presents a development plates panels, addressing main gaps literature, applicability building produced under circular economy criteria sustainable construction.

Language: Английский

Citations

0
Analyzing Issues and Challenges of Using Prefabrication in Punjab, India DOI

Ashish Chopra,

Mohendra Joshi,

Harshpreet Kaur

et al.

Smart innovation, systems and technologies, Journal Year: 2025, Volume and Issue: unknown, P. 593 - 602

Published: Jan. 1, 2025

Language: Английский

Citations

0
Progress management of prefabricated construction projects based on combination of machine learning and multi-objective optimization DOI Creative Commons
Zeng Zhao, Ying Gao

International Journal of Low-Carbon Technologies, Journal Year: 2025, Volume and Issue: 20, P. 881 - 892

Published: Jan. 1, 2025

Abstract The high speed of implementation prefabricated constructions has caused them to become one the most popular and widely used construction elements today. Prefabricated projects are sensitive uncertainties that may cause delays in project progress due need for coordination interdependence between installation activities. Hence, it is essential monitor avoid actual delays. Separating module from environment, recognizing its type also identifying mode three prerequisites managing based on modules. Considering variety separation modules difficulty as well each module, a new method with basic steps was this study. These actions consist following: (1) use NSGA-II frame segmentation determine regions interest; (2) identification using Convolutional Neural Network (CNN) Cuckoo Search Optimization (CSO) conjunction; (3) combination CNN CSO evaluate quality category case study's findings demonstrated that, both analysis stages, suggested approach outperformed alternative models terms accuracy, precision, recall, F-Measure indices. model's superiority over compared further supported by receiver operating characteristic analysis.

Language: Английский

Citations

0
Design and development of self-compacting alkali-activated concrete for energy-efficient building material DOI Creative Commons
Bhagyashri A. Lanjewar,

Abhilasha N. Kumbalwar,

Hindavi R. Gavali

et al.

Frontiers in Built Environment, Journal Year: 2025, Volume and Issue: 11

Published: March 25, 2025

Anticipated urbanization and population growth, particularly in developing countries, are expected to boost demand for concrete, resulting higher emissions raw material consumption. In response growing global sustainability awareness, various industries countries have implemented diverse initiatives aimed at significantly reducing their greenhouse gas emissions. Alkali Activated Concrete (AAC), often known as zero cement is a viable substitute conventional concrete. This study developed self-compacting alkali-activated concrete (SCAAC) using agro-industrial wastes curing ambient temperatures. The precursors were ground granulated blast furnace slag (GGBS) fly ash (FA), which activated with sodium hydroxide flakes liquid silicate. Co-fired bio-blended (BA), an waste, was used partially replace river sand. physical, chemical, mineral, morphological properties of BA thoroughly investigated. found suitable use partial replacement sand temperature effective producing high-strength durable material. thermal conductivity the determined. reduction embodied energy calculated. peak cooling load computational modeling based SCAAC. successfully met specified compressive strength requirement M30 grade achieving value 38.12 MPa. Reduction (7.37%) observed compared Results show that reduced by 35% [1.9 W/(m.K)] due lower [1.247 W/(m.K)]. mixture not only environmental impact but also utilized waste materials would otherwise be disposed landfills. Overall, this demonstrates potential sustainable environmentally friendly construction wastes.

Language: Английский

Citations

0