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On the applicability of various levels of detail for occupant behavior representation and modeling in building performance simulation

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Building Simulation 2023年第8期16卷 1481-1498页

作者： Jeetika Malik Handi Chandra Putra Kaiyu Sun Tianzhen Hong Building Technology and Urban System Division Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA

Occupant behavior(OB)is one of the significant sources of uncertainty in building performance *** OB modeling has received increased attention in the past decade,research on the degree of granularity or level of detail(LoD)required for representing occupants is still in the nascent *** paper analyzes the modeling and applicability of three LoDs to represent occupants in building performance assessment.A medium-sized prototype office building located in Chicago,Illinois is used as the simulation case *** occupant-centric attributes are adopted to develop the LoDs for OB *** first demonstrate the different modeling approaches required for simulating the three fidelity ***,we illustrate the suitability of the developed LoDs in supporting six building performance use cases across different lifecycle *** study intends to provide guidance for the building simulation community on appropriate OB representation to support various use cases.

关键词： occupant behavior agent-based modeling building performance simulation level of detail fit-for-purpose office buildings

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A Proposed Framework for Optimised Utilisation of Materials for Low Volume Roads Using the Dynamic Cone Penetrometer

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Journal of Transportation Technologies 2021年第1期11卷 14-36页

作者： Michael Pinard Philip Paige-Green Jon Hongve Estime Mukandila Infra Africa Consultants Gaborone Botswana Department of Civil Engineering Tshwane University of Technology Pretoria South Africa Independent Consultant Tjome Norway Real Baobab (Pty) Ltd Pretoria South Africa

In order to minimise the cost of constructing low volume roads (LVRs), it is essential that optimum use is made of locally available, naturally occurring materials. However, conflicts often arise between material acceptability, as defined by conventional test methods and specifications, and material suitability in terms of actual engineering performance as a “fit-for-purpose” road construction material. To avoid such conflicts, it is crucial to adopt appropriate test methods and specifications for selecting construction materials. This paper presents a materials evaluation framework for optimizing the utilisation of materials in LVR pavements based on the use of the Dynamic Cone Penetrometer (DCP). This approach enables materials to be selected on the basis of their “fitness-for-purpose”. It avoids suitable materials from being rejected based on one or other of the traditionally specified parameters not being complied with, even though their strength, as measured by the DCP penetration rate (DN value in mm/blow) of the soil, may be adequate. Investigations of the properties of a wide range of locally available materials that have been used successfully in the construction of LVRs have confirmed the validity of the materials evaluation framework.

关键词： Low Volume Roads Dynamic Cone Penetrometer Materials fit-for-purpose

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