The Experts below are selected from a list of 27285 Experts worldwide ranked by ideXlab platform
Steffen Lehmann - One of the best experts on this subject based on the ideXlab platform.
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low carbon Construction systems using prefabricated engineered solid wood Panels for urban infill to significantly reduce greenhouse gas emissions
Sustainable Cities and Society, 2013Co-Authors: Steffen LehmannAbstract:Abstract Low-carbon prefabricated modular Construction systems, using prefabricated engineered solid wood Panel Construction systems, such as load-bearing cross-laminated timber Panels, and ‘design for disassembly’ principles will offer significant opportunities for greenhouse gas emission reduction and waste avoidance, among other benefits. However, introducing such innovative and sustainable Construction systems to the Australian Construction industries and housing markets has its challenges. This paper explores the opportunities offered by an innovative low carbon Construction system using cross-laminated timber (CLT, also known as cross-lam) Panels to improve the design and delivery of urban infill housing of the Australian Construction market. CLT Construction has been developed around 1996 in Europe, mainly in Austria and Germany: thick layers of timber boards are glued crosswise in different directions to increase loadbearing capacity. This article describes a multi-disciplinary research project into engineered timber Panels which aims to transform the Australian Construction and development industry, involving a range of key partners. This project aims to introduce CLT Panels as a way to build with a lightweight prefabricated low-carbon Construction system that is advantageous for urban infill and residential buildings in the range of 4–10 stories height. The challenges, research questions and advantages of this new engineered timber system are explained, and a research methodology for further research is presented.
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sustainable Construction for urban infill development using engineered massive wood Panel systems
Sustainability, 2012Co-Authors: Steffen LehmannAbstract:Prefabricated engineered solid wood Panel Construction systems can sequester and store CO 2 . Modular cross-laminated timber (CLT, also called cross-lam) Panels form the basis of low-carbon, engineered Construction systems using solid wood Panels that can be used to build residential infill developments of 10 storeys or higher. Multi-apartment buildings of 4 to 10 storeys constructed entirely in timber, such as recently in Europe, are innovative, but their social and cultural acceptance in Australia and North America is at this stage still uncertain. Future commercial utilisation is only possible if there is a user acceptance. The author is part of a research team that aims to study two problems: first models of urban infill; then focus on how the use of the CLT systems can play an important role in facilitating a more livable city with better models of infill housing. Wood is an important contemporary building resource due to its low embodied energy and unique attributes. The potential of prefabricated engineered solid wood Panel systems, such as CLT, as a sustainable building material and system is only just being realised around the globe. Since timber is one of the few materials that has the capacity to store carbon in large quantities over a long period of time, solid wood Panel Construction offers the opportunity of carbon engineering, to turn buildings into ‘carbon sinks’. Thus some of the historically negative environmental impact of urban development and Construction can be turned around with CLT Construction on brownfield sites.
Wei Zhou - One of the best experts on this subject based on the ideXlab platform.
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rfid enabled knowledge based precast Construction supply chain
Computer-aided Civil and Infrastructure Engineering, 2017Co-Authors: Zhaojing Wang, Hao Hu, Wei ZhouAbstract:Radio frequency identification (RFID) helps improve supply chain efficiency by providing item-level identification and real-time information. Today, barcode continues to be the main identification technology for precast Construction applications. In this research, we investigate the data-driven mechanisms and benefits of utilizing RFID in knowledge-based precast Construction supply chains. With computer-aided self-learning capability, we simulate three models for manual-, barcode-, and RFID-enabled precast Construction supply chain. The results of 100 precast wall-Panel Construction in a two-echelon precast Construction supply chain reveal that the knowledge-based RFID system could generate 62.0% saving of operational costs, which is 29.0% higher than that of a barcode-based system. As a result, the computer-aided adaptive learning mechanism based on RFID is verifiable to improve the overall operational performance by reducing lead time, operational errors, and costs. Due to the lack of existing literature of data technology utilization in the precast Construction industry, our findings in this research could improve the decision making regarding technology selection, as well as help with the operationalization of RFID and transformation to intelligent precast Construction management in big data environment.
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RFID Enabled Knowledge‐Based Precast Construction Supply Chain
Computer-aided Civil and Infrastructure Engineering, 2017Co-Authors: Zhaojing Wang, Hao Hu, Wei ZhouAbstract:Radio frequency identification (RFID) helps improve supply chain efficiency by providing item-level identification and real-time information. Today, barcode continues to be the main identification technology for precast Construction applications. In this research, we investigate the data-driven mechanisms and benefits of utilizing RFID in knowledge-based precast Construction supply chains. With computer-aided self-learning capability, we simulate three models for manual-, barcode-, and RFID-enabled precast Construction supply chain. The results of 100 precast wall-Panel Construction in a two-echelon precast Construction supply chain reveal that the knowledge-based RFID system could generate 62.0% saving of operational costs, which is 29.0% higher than that of a barcode-based system. As a result, the computer-aided adaptive learning mechanism based on RFID is verifiable to improve the overall operational performance by reducing lead time, operational errors, and costs. Due to the lack of existing literature of data technology utilization in the precast Construction industry, our findings in this research could improve the decision making regarding technology selection, as well as help with the operationalization of RFID and transformation to intelligent precast Construction management in big data environment.
Zhaojing Wang - One of the best experts on this subject based on the ideXlab platform.
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rfid enabled knowledge based precast Construction supply chain
Computer-aided Civil and Infrastructure Engineering, 2017Co-Authors: Zhaojing Wang, Hao Hu, Wei ZhouAbstract:Radio frequency identification (RFID) helps improve supply chain efficiency by providing item-level identification and real-time information. Today, barcode continues to be the main identification technology for precast Construction applications. In this research, we investigate the data-driven mechanisms and benefits of utilizing RFID in knowledge-based precast Construction supply chains. With computer-aided self-learning capability, we simulate three models for manual-, barcode-, and RFID-enabled precast Construction supply chain. The results of 100 precast wall-Panel Construction in a two-echelon precast Construction supply chain reveal that the knowledge-based RFID system could generate 62.0% saving of operational costs, which is 29.0% higher than that of a barcode-based system. As a result, the computer-aided adaptive learning mechanism based on RFID is verifiable to improve the overall operational performance by reducing lead time, operational errors, and costs. Due to the lack of existing literature of data technology utilization in the precast Construction industry, our findings in this research could improve the decision making regarding technology selection, as well as help with the operationalization of RFID and transformation to intelligent precast Construction management in big data environment.
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RFID Enabled Knowledge‐Based Precast Construction Supply Chain
Computer-aided Civil and Infrastructure Engineering, 2017Co-Authors: Zhaojing Wang, Hao Hu, Wei ZhouAbstract:Radio frequency identification (RFID) helps improve supply chain efficiency by providing item-level identification and real-time information. Today, barcode continues to be the main identification technology for precast Construction applications. In this research, we investigate the data-driven mechanisms and benefits of utilizing RFID in knowledge-based precast Construction supply chains. With computer-aided self-learning capability, we simulate three models for manual-, barcode-, and RFID-enabled precast Construction supply chain. The results of 100 precast wall-Panel Construction in a two-echelon precast Construction supply chain reveal that the knowledge-based RFID system could generate 62.0% saving of operational costs, which is 29.0% higher than that of a barcode-based system. As a result, the computer-aided adaptive learning mechanism based on RFID is verifiable to improve the overall operational performance by reducing lead time, operational errors, and costs. Due to the lack of existing literature of data technology utilization in the precast Construction industry, our findings in this research could improve the decision making regarding technology selection, as well as help with the operationalization of RFID and transformation to intelligent precast Construction management in big data environment.
Qianhua Cheng - One of the best experts on this subject based on the ideXlab platform.
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elastic stiffness properties and behavior of truss core sandwich Panel
Journal of Structural Engineering-asce, 2000Co-Authors: Qianhua ChengAbstract:Sandwich Construction provides a structural form that can be used for aviation, aerospace, marine, and mechanical/civil engineering applications. This paper introduces a truss-core sandwich Panel and presents its elastic properties. Two thin flat sheets, separated by two inclined plates acting as the core and rigidly jointed at their ends, characterize the sandwich section. This Construction form eliminates most of the attendant problems of conventional spot-welded or rivet-fastened sandwich Panel Construction. Advantages of the truss-core Panel are discussed. The three-dimensional (3D) sandwich Panel is idealized as an equivalent 2D orthotropic thick plate continuum. Equivalent bending, twisting, and transverse shear stiffness are derived, and the influence of the relatively weak shear stiffness on the behavior is discussed. By integrating these elastic stiffness constants into closed-form solution, Panel response is calculated. The calculated results, which require significantly less computational effort, agree well with 3D finite-element analysis. Comparisons of stiffnesses and deflections with the corresponding responses of conventional sandwich Construction are provided. This study indicates that the truss-core sandwich Panel performs better because of its inherently higher flexural resistance per unit weight.
Yuguo Sun - One of the best experts on this subject based on the ideXlab platform.
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mechanical behavior of the sandwich structures with carbon fiber reinforced pyramidal lattice truss core
Materials & Design, 2010Co-Authors: Bing Wang, Yuguo SunAbstract:Sandwich Panel Construction with carbon fiber-reinforced pyramidal lattice truss is attracting more and more attention due to its superior mechanical properties and multi-functional applications. Pyramidal lattice truss sandwich Panels made from carbon fiber reinforced composites materials are manufactured by hot-pressing. The facesheets are interconnected with truss cores, the facesheets and truss cores are manufactured in one manufacturing process without bonding. The buckling and splitting of truss member is observed in the compressive and shear tests and no nodal failure is observed. The predicted results show that the mechanical behavior of the pyramidal lattice truss core sandwich Panels depends on the relative density of core and the material properties of truss members.
