• Title/Summary/Keyword: underground lots

Search Result 120, Processing Time 0.028 seconds

Daylighting of Underground Parking Lots in Apartment Housings by Field Survey and Performance Evaluation (공동주택 지하주차장의 자연채광 실태 및 채광성능 평가)

  • Chung, Yu-Gun;Kim, Jeong-Tai
    • KIEAE Journal
    • /
    • v.2 no.2
    • /
    • pp.39-44
    • /
    • 2002
  • Recently, underground spaces can be usually applied to the alternative of land use for parking. However, lack of window and natural light are among the most cited drawbacks associated with dark image of underground. If underground parking lots are designed to be positive and safe environment for people, openings for daylighting will play a significant role. The natural light and unobstructed view to outdoor are main elements to create optimal underground parking lots. This paper focuses on investigating the actual day lighting conditions and evaluating the day lighting performance of openings as potential lighting resources. For the study, the field measurements and Questionnaire surveys are conducted. And then, the day lighting performance of underground parking lots based on opening geometry and orientation are evaluated by scaled model experiments. As results, the feelings of safety and orientation of underground parking lots are improved by openings for day lighting regardless of the sizes. The required illuminances (daylight factor 0.5%) for underground parking lots can be satisfied in the skylight opening ratio of 4% or more.

A Study on Inhabitants' Mental Survey for Apartment House's Underground Parking Lots (공동주택 지하주차장 계획을 위한 거주자 의식조사연구)

  • Jeong, Young-Suk;Cho, Sung-Woo;Oh, Se-Gyu
    • Proceeding of Spring/Autumn Annual Conference of KHA
    • /
    • 2009.04a
    • /
    • pp.113-117
    • /
    • 2009
  • By statistics in August, 2007, currently Korean motors registration number broke through 16 million units. The demand of motors is being increased as time goes on and the demand of parking lot within apartment complex is increased together. Therefore, it is inevitable to expand underground parking lots. Underground parking lots have relatively weaker environment than the ground and physical/psychological problems as distance far away from the main building, fear for vehicle damage and crimes, impure air, darkness and closed feeling take place. Underground parking lots also occupy a lot of area ratio within apartment complex and have a lot of effects on other facilities. Therefore, underground parking lots are neglected for all that underground parking lots have deep relations with satisfaction for public space within apartment complex. Accordingly, the purpose of the study is to make reference materials when underground parking lots are planned by grasping satisfaction of underground parking lots through inhabitants'mental survey and surveying preferential location and requirements of parking lots.

  • PDF

A Study on Ventilation Performance driven by Wind Force in Underground Parking Lots of Apartment - Influence of Opening Size and Surrounding Building - (공동주택 지하주차장의 풍력환기 성능에 관한 연구 - 환기구 면적 및 주변건물의 영향 -)

  • Roh, Ji Woong
    • KIEAE Journal
    • /
    • v.12 no.1
    • /
    • pp.29-34
    • /
    • 2012
  • As a series of studies about natural ventilation driven by wind in basement parking lots of apartment, the influence of opening size and surrounding buildings on ventilation rate was analyzed. Natural ventilation in underground parking lots almost rely on wind than temperature difference. To investigate natural ventilation driven by wind, wind tunnel tests by using scale model and tracer gas method were conducted. $CO_2$-gas concentration was measured, natural ventilation rates were calculated. The experimental results showed that the natural ventilation rate is more reliable to wind direction and surrounding building than opening size and distance between buildings. It was verified that surrounding buildings play a principal role in increasing air flow rate by accelerating wind speed, and growing turbulence intensity. And it showed that ventilation performance is able to be increased by oblique wind to entrance ramp than head on wind in underground parking lots with surrounding buildings.

A Study on the Improvement of Indoor Environment in the Underground Parking Lot of Apartments in Jeonju City (전주시 공동주택 지하주차장의 실내환경 개선에 관한 연구)

  • Jung, Jaeyoun;Jeong, Insoo;Bao, Wei
    • Journal of the Korean Institute of Rural Architecture
    • /
    • v.22 no.1
    • /
    • pp.1-12
    • /
    • 2020
  • The main purpose of the research is to prevent residents who are using underground parking lot from being exposed to pollusion, and to allow them to enjoy clean indoor environment. The study subject for the research are underground parking lots in 20 different apartments, 4 of them were constructed before 2000, 10 were constructed from 2000-2010, and the rest were constructed after 2010. By analyzing the air quality in these underground parking lots, we found out that O3, NO2, CO, PM10, Radon in all parking lots were not excessive compared to the standard limit. TVOC rate was measured with the value in between 312 ~ 2,137㎍/m3, with CO2 value in between 193~1,824 ppm, and HCHO with the value in between 0.01~1.52ppm. The lightning system in underground parking lots in apartments constructed before 2000 were using manual light control system, while automatic light control system was used in all apartments constructed after 2000, and the brightness of parking lots in apartments constructed before 2000 was quite low. The apartments constructed after 2000 are performing cleaning and ventilation due to management agreement, while the apartments constructed before 2000 are not performing regular cleaning and there was no mechanical ventilation system installed. The difference of indoor air quality was significant seasonally, daily, and yearly (year of construction), while illuminance was significantly different yearly.

Characteristics of Planting Design according to Parking Lots Type in Multi-family Housing Complex (공동주택단지의 주차장 유형에 따른 식재특성)

  • Hong, Seong-Rae;Jeong, Dae-Young;Shim, Sang-Ryul
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.37 no.1
    • /
    • pp.43-49
    • /
    • 2009
  • The number of registered vehicles increased to one million in 1985 and ten million in 1997, and the parking lots in multi-family housing complex that had been mainly constructed on the ground level began to be constructed in underground levels. Therefore, planting design in such complex were greatly changed. This study classifies the parking lots in multi-family housing complexes located in Cheongju into three categories: above-ground, mixture of above-ground and underground, and underground. The characteristics of planting design in each were then analyzed. The rate of parking per family increased by two or more in the type of mixture when compared to in the type of above-ground. As underground parking lots became dominant, the rate of parking per family increased to one car or more. The green area ratio did not change considerably when above-ground parking was combined with underground parking, but the green area per total floor space was reduced, which indicates the quality of green area became lower. Most of the parking lots in multi-family housing complexes since 2000 have been constructed underground, and the green area became larger. As for the species of trees used in planting design, trees that are vulnerable to damage by blight and harmful insects and may be repugnant have been reduced and replaced by trees whose shapes are beautiful and whose flowers and fruits can be appreciated, such as Chionanthus retusa, Malus floribunda, Styrax japonicus, Prunus mume, Lagerstroemia indica. Pine trees are variously planted with diversified standards, and, in particular, tall pine trees are being utilized as focal points. Herbaceous flowers began to be planted in underground parking lots constructed since 2000, and they are expected to be planted even more due to the appreciation of their flowers and their splendid appearance.

The Effect of Ventilation and Concentration of Indoor Air Quality at Indoor Parking Lots (실내주차장의 실내공기질 농도특성 및 환기에 의한 저감효과)

  • Park, Jeong-Ho
    • Journal of Korean Society of Occupational and Environmental Hygiene
    • /
    • v.20 no.4
    • /
    • pp.241-247
    • /
    • 2010
  • Recently, indoor air quality (IAQ) has been one of the major concerns of people. Indoor parking lots are subject to be exposed to high concentrations of air pollutants emitted from vehicles. This study was performed to investigate indoor air quality (IAQ) at indoor parking lots. Sampling sites were selected 5 indoor parking lots. Target indoor air quality parameters include a number of criteria pollutants such PM$_{10}$, CO, CO$_2$, and HCHO. In addition, a variation of IAQ according to ventilation system operating was measured at C site (underground parking lot). In general, all pollutants were maintained below indoor air quality maintenance standards. The indoor air quality at indoor parking lots was affected by the availability of the ventilation facility and their operation frequency. At the underground parking lot (C site) with ventilation system, TVOC concentration according to ventilation system operating were found to be lower operating (488.2 ${\mu}g/m^3$) than non-operating (1,401.2 ${\mu}g/m^3$).

A survey study on the parking preference according to the types of parking lots - Focused on apartment complexes in Daegu city - (주차장유형에 따른 선호도에 관한 조사연구 - 대구지역 아파트 단지를 중심으로 -)

  • Park, Chan-Don
    • Journal of the Korean Society of Industry Convergence
    • /
    • v.6 no.1
    • /
    • pp.57-64
    • /
    • 2003
  • Nowadays, there are many problems of traffic and parking in residential areas. This study begins analysis the parking situations in apartment complex. It originated from understanding of the parking preference of users about underground and ground parking lots. The method of this study is based on field survey of parking demand and thoughts of users of underground parking lot. There are so many parking problems in apartment complex that is due to the absence of parking demand data. So the goal of this study is to provide a solution of parking problems in apartment complex through understanding of the actual condition of parking problems, the preference and the reason of users about underground parking lot in apartment complex.

  • PDF

Waterproofing and Root Barrier Construction Design for Artificial Green Roof System of Residential Apartment Underground Parking Lots (공동주택 지하주차장 상부 인공지반녹화층 방수 및 방근 설계 방안)

  • Lee, Jung-Hun;Kim, Bum-Soo;Song, Je-Young;Kim, Soo-Yeon;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2018.05a
    • /
    • pp.337-338
    • /
    • 2018
  • In recent years, residential apartment building parking lots are built in underground spaces, and with conjunction to improve the environment of the urban area, artificial greeen roof systems are installed on the upper slabs. However, early plant growth are resulting in root penetration into concrete cracks and in turn into the waterproofing membranes, leading to degradation and damaging of the waterproofing system and structural durability. This issue highlights a problem of conventional maintenance system of concrete structures, and proposals for amendments follow. In this study, a waterproofing and root barrier construction design for the upper slabs of residential building underground parking lots is proposed, and motioned to be added into future construction specifications.

  • PDF

Study on the Performance Improvement of Ventilation Fan Installed in Walls of Underground Parking Lots (벽체 매립형 환기용 팬 성능개선에 관한 연구)

  • Kwon, Yong-Il
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
    • /
    • v.26 no.5
    • /
    • pp.206-211
    • /
    • 2014
  • The objective of the present study was to identify ventilation problems, and also to suggest new axial fan systems for the improvement of IAQ in the underground parking lots. Numerical results for air mean-velocity, local mean age, and sound power level are presented along with some of fan angles. The results showed the influence of airflow patterns on the fan performances installed in the underground parking lots. Discharge air volume is increased with the angle of the blade. And also, the main factors affecting the noise of the ventilation fan was found to be a rotational speed.

The Characteristics of Indoor Air Quality Variation in Underground Parking Lots of Apartments located in Northern Gyeonggi Province (경기도 북부지역 아파트의 지하주차장 실내공기질 변동 특성)

  • Park, Hyun-Ku;Jung, Yeon-Hoon;Kim, Byeong-Lok;Kim, Jin-gil;Shin, Hyung-Soon;Lee, Sang-Soo;Oh, Jo-Kyo
    • Journal of Environmental Health Sciences
    • /
    • v.44 no.3
    • /
    • pp.250-258
    • /
    • 2018
  • Objectives: The study examined indoor air quality during daytime and commute times in underground parking lots in five apartments located in northern Gyeonggi province. Methods: This study examined the temporal characteristics of $PM_{10}$, $CO_2$, CO, HCHO and VOCs in the indoor air quality of the underground parking lots in five apartments. Results: $PM_{10}$ concentration in daytime were ranged from 37.4 to $69.9{\mu}g/m^3$ which complied with the indoor air quality maintenance standard ($200{\mu}g/m^3$) and Gyeonggi province ordinance standard ($180{\mu}g/m^3$). However $PM_{10}$ concentrations in commuting time were in range of $447.3{\sim}944.0{\mu}g/m^3$ that exceeded for both criteria. The $CO_2$, CO and HCHO concentrations complied with the standard. The VOCs indicated high tendency in the order of toluene, xylene, ethylbenzene and benzene. This tendency was more apparent in commuting time than daytime. Conclusion: All indoor parking lots of five apartments were equipped with ventilators. However the most apartment residents did not operate blowers to save electricity and the lack of interest for indoor air quality. In order to improve the indoor air quality of underground parking lots in apartment, operating ventilation system during commuting time is recommended.