• Title/Summary/Keyword: Site-specific assessment

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VSimulators: A New UK-based Immersive Experimental Facility for Studying Occupant Response to Wind-induced Motion of Tall Buildings

  • Antony Darby;James Brownjohn;Erfan Shahabpoor;Kaveh Heshmati
    • International Journal of High-Rise Buildings
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    • v.11 no.4
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    • pp.347-362
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    • 2022
  • Current vibration serviceability assessment criteria for wind-induced vibrations in tall buildings are based largely on human 'perception' thresholds which are shown not to be directly translatable to human 'acceptability' of vibrations. There is also a considerable debate about both the metrics and criteria for vibration acceptability, such as frequency of occurrence or peak vs mean vibration, and how these might vary with the nature of the vibration. Furthermore, the design criteria are necessarily simplified for ease of application so cannot account for a range of environmental, situational and human factors that may enhance or diminish the impact of vibrations on serviceability. The dual-site VSimulators facility was created specifically to provide an experimental platform to address gaps in understanding of human response to building vibration. This paper considers how VSimulators can be used to inform general design guidance and support design of specific buildings for habitability, in terms of vibration, which allow engineers and clients to make informed decisions with regard to sustainable design, in terms of energy and financial cost. This paper first provides a brief overview of current vibration serviceability assessment guidelines, and the current understanding and limitations of occupants' acceptability of wind-induced motion in tall buildings. It then describes how the dual-site VSimulators facility at the Universities of Bath and Exeter can be used to assess the effects of motion and environment on human comfort, wellbeing and productivity with examples of how the facility capabilities have been used to provide new, human experience based experimental research approaches.

Evaluation Method for Value Analysis in the Remodelling of Apartment Building - Focused on Economical Efficiency and User Demand - (건축물의 리모델링 가치분석을 위한 평가방법 - 경제성 평가와 사용자 요구분석을 중심으로 -)

  • 정동환;소광호;김천학;김의식;양극영
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2002.11a
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    • pp.103-109
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    • 2002
  • This research is aiming to specify the requirement of the investment such as initial cost, running cost earning rate to make effective investment considering the purpose of remodeling and economical value of store building enough to meet the initial purpose of remodeling. The review of earning rate for economical evaluation was performed by the on-site auditing on the structure and function of the building and applying the assessment simulation program, which is to find the possible business model to identify the requirement of building owner through case study. After the research, the following results are obtained. First, it is important that many aspects should be carefully analysis and the best method should be selected as characteristics of remodeling can be defer each other in their implementations. Second, though the remodeling of exist buildings to promote the functions has been applied. no suitable assessment tool has bee developed for deciding the level of remodeling in the view of economical efficiency so far. Third, the economical benefit was evaluated by analysing annual earning rate which is applied by investment items and recovery period for the investment. More specific data bate should be established to apply the suggested economic accession in business enough to forecast the future circumstances. More researches should be promoted on this area continuously as well as the integrated economic evaluation of remodeling on existing building.

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Assessing the impact of urbanization on runoff and non-point source pollution using the GIS L-THIA (GIS L-THIA를 이용한 도시화에 따른 유출과 비점원오염 영향 평가)

  • Yun, La-Young;Kim, Dong-Hui;Gwon, Hyeok-Hyeon;Sin, Seung-Cheol;Son, Kwang-Ik
    • Proceedings of the Korea Water Resources Association Conference
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    • 2006.05a
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    • pp.1802-1806
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    • 2006
  • It is important to consider the effects of land-use changes on surface runoff, stream flow, and groundwater recharge. Expansion of urban areas significantly impacts the environment in terms of ground water recharge, water pollution, and storm water drainage. Increase of impervious area due to urbanization leads to an increase in surface runoff volume, contributes to downstream flooding and a net loss in groundwater recharge. Assessment of the hydrologic impacts or urban land-use change traditionally includes models that evaluate how land use change alters peak runoff rates, and these results are then used in the design of drainage systems. Such methods however do not address the long-term hydrologic impacts of urban land use change and often do not consider how pollutants that wash off from different land uses affect water quality. L-THIA (Long-Term Hydrologic Impact Assessment) is an analysis tool that provides site-specific estimates of changes in runoff, recharge and non point source pollution resulting from past or proposed land-use changes. It gives long-term average annual runoff for a land use configuration, based on climate data for that area. In this study, the environmental and hydrological impact from the urbanized basin had been examined with GIS L-THIA in Korea.

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Event Mean Concentration of Nitrogen and Phosphorus from a Dairy and Crop Farming Complex Watershed

  • Yoon, Kwang-Sik;Shirmohammadi, Adel;Choi, Woo-Jung;Jung, Jae-Woon
    • Journal of The Korean Society of Agricultural Engineers
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    • v.48 no.7
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    • pp.65-72
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    • 2006
  • Event mean concentration (EMC) of nitrogen (N) and phosphorus (P) is primary information for non-point source pollution assessment of a watershed. The EMCs for various types of agriculture such as dairy and crop farming under different climate and geologic conditions are not fully investigated. A diary- and cropfarming complex agricultural watershed in Piedmont region in Maryland, USA has been monitored for 10 years as a section 319 national monitoring program of US EPA. Dairy manure was the main source of fertilizer for crop farming in this watershed. Observed mean concentrations of N and P for each event were analyzed. Distribution of EMCs for N and P showed a wide range of variations. Representative EMCs of T-N and $NO_{3}-N$ tended to be higher than those reported for other agricultural watersheds. This study confirmed that site-specific EMC information for various agricultural practices is required for better assessment of non-point source pollution using EMC method.

A Study on the Business Plan Changes of Housing Complex evaluated by the "Housing Performance Grading Indication System" (주택성능등급표시제도의 개선을 위한 인정 단지의 사업계획변경 현황에 대한 실태조사 연구)

  • Lee, Sung-Ok;Bae, Cheol-Hak
    • KIEAE Journal
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    • v.11 no.6
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    • pp.43-51
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    • 2011
  • This study aims to analyze on the change status in the project plan of the housing complex as evaluated through the Housing Performance Grading Indication System. This a a system for assessing quantitatively the comprehensive, unified performance of housing by an objective standard from the design stage since January 9, 2006. As housing is a composite with various performances, it is required necessary to objectively assess the various performances from the design stage for building better housing. Thus, this study analyzed the change status and objectively described objectively it centering on the construction and structure drawings for 12 items posted in the Facility Management System_(FMS) out of examples recognized by 2011 since the implementation of the system. The changes were analyzed though observing each performance item-specific characteristics and confirming the books approved for use. In various parts, such as the site area, landscape plan, plane plan for unit, supplementary welfare facility plan, finishing materials, window size and location, the project plan was changed. These changes may result in a grading change in of the performance items of the system. This study purpose is for it to be used as a basic resource required for future system development by supplementing the limitation of the design phase and then through playing a basic role for the assessment after completion.

Acquisition of Evidential Information to Control Total Volume of Road Density per Tributary Watershed (도로밀도에 대한 소하천 유역 기반의 총량규제 기초자료 확보 방안)

  • Um, Jung-Sup
    • Journal of Environmental Impact Assessment
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    • v.14 no.5
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    • pp.317-335
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    • 2005
  • This paper is primarily intended to propose a new concept of "aggregate control of road density" which is defined as the area-wide road surface per watershed area. An empirical study for experimental sites was conducted to confirm how a standard GIS technology can be used to assist in estimating the road density in terms of total volume threshold control. Guidelines for a replicable methodology are presented to provide a strong theoretical basis for the standardization of factors involved in the estimation of the road space threshold; the meaningful classification of road types, delination of watershed boundary, interpretation for distribution trends of road density etc. A variety of visual maps using overlay analysis can be generated over large areas quickly and easily to show the fact that some degree of road space already exists in the experimental sites. They could be used as an evidence to limit further construction of road network in comparison with other tributary watershed. It is anticipated that this research output could be used as a valuable reference to confirm the potential of introducing the new concept of "site specific road density" to support more scientific and objective decision-making in the process of road construction project.

Comparative Evaluation of Indoor Temperature in Spring according to Sitting Orientation of Tower-Type Apartments (탑상형 아파트의 배치방향별 봄철 실내온도 비교평가)

  • Kim, Jun Hyun;Um, Jung-Sup
    • Journal of Environmental Impact Assessment
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    • v.20 no.2
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    • pp.175-185
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    • 2011
  • It is usual for energy consumption in accordance with facing and sitting direction of tower-type apartments to be calculated by the official statistics or computer simulation. Previous studies for energy consumption appear to be very limited due to the dependence on flat type of apartment. Acknowledging these constraints, an empirical study for a tower type apartment was conducted to demonstrate how a on-site indoor temperature measurement in spring can be used to assist in estimating the total energy consumption in terms of facing and sitting orientation specific settings. The results indicate that maximum temperature difference in spring was identified as $1.16^{\circ}C$ between south and eastern direction. It is known that raising $1^{\circ}C$ indoor temperature require 7% more energy consumption than normal. The $1.16^{\circ}C$ difference means that sitting direction of tower type apartment is a crucial explanatory variable as unit of analysis for energy consumption. It was demonstrated that the indoor temperature could be used effectively as an indicator to estimate energy consumption among various sitting direction of tower type apartments. It is anticipated that this research output could be used as a valuable reference to support more scientific and objective decision-making for facing and sitting orientation of tower type apartments.

Evidence-Based Nursing Practice Guideline: Ostomy Care (근거기반 임상실무지침: 장루간호)

  • Lee, Yun Jin;Park, Hyun Suk;Kim, Min Kyung;Seo, Hui Won;Lee, Mi Ju;Won, Eun Ae;Jo, Gha Na
    • Journal of Korean Clinical Nursing Research
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    • v.26 no.2
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    • pp.154-163
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    • 2020
  • Purpose: The aim of this study was to develop an evidence-based guideline for stoma management providing institutional policy, assessment, complications and follow-up care. Methods: The guideline adaptation manual consisting of 23 steps developed by the National Evidence-Based Healthcare Collaborating Agency was used for this study. It presents an overview of the process used to develop the guideline and lists specific recommendations from the guideline. Results: It provides 55 recommendations that include the following 8 topics: 1) Organization and policy recommendations, 2) Preoperative nursing; Ostomy education, stoma site marking, 3) Ostomy formation, 4) Postpoperative nursing; education, assessment, high output stoma management, 5) Selection of ostomy products, 6) Colostomy irrigation, 7) Stomal and peristomal complications, 8) Follow-up care after discharge. Conclusion: The guideline can be used to address stoma management in hospital settings. The intent of the guideline is to provide information that will assist healthcare providers to manage adult patients with ostomies, prevent or decrease complications, and improve patients' outcomes.

Radiographic evaluation of the symphysis menti as a donor site for an autologous bone graft in pre-implant surgery

  • Bari, Roberto Di;Coronelli, Roberto;Cicconetti, Andrea
    • Imaging Science in Dentistry
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    • v.43 no.3
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    • pp.135-143
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    • 2013
  • Purpose: This study was performed to obtain a quantitative evaluation of the cortical and cancellous bone graft harvestable from the mental and canine regions, and to evaluate the cortical vestibular thickness. Materials and Methods: This study collected cone-beam computed tomographic (CBCT) images of 100 Italian patients. The limits of the mental region were established: 5 mm in front of the medial margin of each mental foramen, 5 mm under the apex of each tooth present, and above the inferior mandibular cortex. Cortical and cancellous bone volumes were evaluated using SimPlant software (SimPlant 3-D Pro, Materialize, Leuven, Belgium) tools. In addition, the cortical vestibular thickness (minimal and maximal values) was evaluated in 3 cross-sections corresponding to the right canine tooth (3R), the median section (M), and the left canine tooth (3L). Results: The cortical volume was $0.71{\pm}0.23mL$ (0.27-1.96 mL) and the cancellous volume was $2.16{\pm}0.76mL$ (0.86-6.28 mL). The minimal cortical vestibular thickness was $1.54{\pm}0.41mm$ (0.61-3.25 mm), and the maximal cortical vestibular thickness was $3.14{\pm}0.75mm$ (1.01-5.83 mm). Conclusion: The use of the imaging software allowed a patient-specific assessment of mental and canine region bone availability. The proposed evaluation method might help the surgeon in the selection of the donor site by the comparison between bone availability in the donor site and the reconstructive exigency of the recipient site.

Offsite Consequence Analysis and safety management system process integration plan of safety management system (장외영향평가 및 공정안전관리제도의 통합 안전환경관리방안에 관한 연구)

  • Kim, Dong-Jun;Lee, In-Bok;Moon, Jin-Young;Chun, Young-Woo
    • Journal of the Korea Safety Management & Science
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    • v.18 no.3
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    • pp.63-70
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    • 2016
  • The main point of this study is to find out duplicates and differences among various regulations from different organizations. Also, it focuses on creating a reasonably unified regulation system to standardize safety & environment management. In this study, I analyzed the commonalities and the differences of two systems which are typical korean Process Safety Management System and off-site Consequence Analysis. It is confirmed that there are 25 species of overlapped material of those two systems and assessment like handling material information, facilities lists, hazardous substances and list of machine power. Process safety report focuses on onsite workers and facility protect. On the other hand, off-site Consequence Analysis focuses on design, arrangement and management of handling facility from off-site influence. I found difference two system of Enforcement purposes and way. Contradiction of Harmful information of Chemicals Control Act and occupation safety and health acts from same material. To be specific, There are no unit rule of occupation safety and health acts. so it permit inch, psi etc. But Chemicals Control Act provides that m, Mpa units. Therefore, Each regulatory duplication of items for chemicals management, standardization is writing so that you can coordinate overlapping items in the measures the need to be presented.