演绎都市--关于"2002上海双年展策展方案"的几点注解

本文以2002上海双年展主策展人的独特视角,分析了这次双年展以个体思考与群体讨论相结合的策展模式:并从全球化和都市化背景下对都市生活和都市文化的关注,介绍了策展对象、策展内容以及策展主题的确定。最后还分析了在“都市营造”的主题下引发的关于“都市性的审视,都市的文化身份,跨文化的空间,新艺术的家园”等学术问题的探讨。     

我国城市综合防灾规划编制方法研究

针对我国目前城市防灾规划编制中存在的灾种偏少、手段单一、缺乏评估内容、缺乏协调机制的问题,城市综合防灾规划应实现统一部署、相互协调、综合评估、定期反馈、及时更新,其编制内容应包括现状研究、总体目标系统、支持系统、风险评估系统和各单灾种规划,其编制流程为"现状研究-风险评估-规划对策-实施更新".     

城市人行地道现状及设计对策分析

对城市人行地道的优缺点进行了分析,提出了一些设计对策,指出人行地道的设计应作为城市空间节点的组成部分来考虑.     

高层住宅底部空间与城市空间关系的探讨

由于土地资源日趋减少,以高层住宅为主要居住模式的现象必然产生,其对城市空间的影响也不可避免。本文借鉴了香港地区高层建筑与城市共建和谐关系的处理手法,细致地分析了高层住宅底层空间的优缺点,提出相应的改善措施。     

基于河流保护的设计——老河口五龙公园案例研究

以人为本是城市景观设计中最通常的原则,但运用在人与自然高度对立的城市滨水却未必正确.遵循河流保护原则进行设计探索展现出的结果是全新的而又不同的.     

Stormwater runoff quality and quantity from asphalt, paver, and crushed stone driveways in Connecticut

This study compared the quality and quantity of stormwater runoff from replicated asphalt, permeable paver, and crushed-stone driveways. Rainfall was measured on-site and runoff was recorded using tipping buckets. Flow-weighted composite runoff samples were analyzed weekly for total suspended solids, total Kjeldahl nitrogen, nitrate-nitrogen, ammonia-nitrogen, total phosphorus (TP), zinc, lead, and copper. Infiltration rate was determined on each driveway annually. Repeated measures analysis of variance indicated that stormwater runoff was significantly different among each driveway type; the order of decreasing runoff was asphalt> paver> stone. Average infiltration rates were 0, 11.2 and 9.0 cm/h for asphalt, paver, and crushed stone driveways, respectively. Both paver and crushed stone driveways reduced stormwater runoff as compared to asphalt driveways. Runoff from paver driveways contained significantly lower concentrations of all pollutants measured than runoff from asphalt driveways. However, runoff from crushed stone driveways was similar in concentrations to runoff from asphalt driveways, except for TP concentrations, which were lower in runoff from crushed stone driveways than runoff from asphalt driveways. The mass export of measured pollutants followed the relative differences in stormwater runoff, rather than differences in concentrations.     

The impact of urban street layout on local atmospheric environment

The investigation was carried out to reveal the impact of urban street layout on local atmospheric environment through computational fluid dynamics (CFD) numerical simulations using standard k$k$–ε$\epsilon$ turbulence model. Different street canyon configurations are considered and the flow regimes summarized according to the aspect ratio of the leeward building height and the street width H1/W$H1/W$ and the aspect ratio of the leeward building height and the windward building height H1/H2$H1/H2$. Three regimes are defined to denote the vortices and characteristics of pollutant dispersion in street canyons according to the parameters H1/W$H1/W$ and H1/H2$H1/H2$. It is found that the pollutant transport and diffusion is strongly dependent upon the type of flow regime inside the canyon and exchange between canyon and the above roof air. The study indicated that there is a strong influence of the street layout on the wind field and the pollutant dispersion in the street canyon mainly depends on the vortex structure in the canyon. The results are validated against an extensive wind tunnel experimental (Meroney and Rafailidis) [Journal of Wind Engineering and Industrial Aerodynamics, 1996;62:37–56; http://www.mi.uni-hamburg.de] and the simulated results concluded by Sini [Atmospheric Environment 1996;30:2659–77] and Sang [Atmospheric Environment 2002;36:1137–45].     

城市空间发展的科学与技术维度

科学的发展与技术的进步是城市空间演变过程中最为活跃的影响因素。科学的发展，在改变着人们对世界的认识同时，引发了规划设计观念的更新。技术的进步，在促使城市化水平提高的过程中，促使了城市空间的重组。在科学的新观念和技术的新方法的共同作用下，城市形态进行着持续的演化。     

CCTV媒体公园的项目实践

中央电视台是中国国家电视台,其新台址工程坐落于最具活力的北京中央商务区,是建国以来国家建设的单体最大的公共文化设施。作为央视新台址工程的重要组成部分,“媒体公园”的规划设计方案强调了央视作为媒体先锋的五个本质意义——“时代、时尚、时下、时段、时机”,在研究人的行为模式的基础上,融合皮拉内西的景观风格,力图建成北京城新的地标景观和城市名片。     

Urban landscape networks: an ecological planning framework

This paper presents a framework for the planning of urban landscape networks in an attempt to have nature areas integrated into traditional urban land-use planning. The biophysical and socio-economic benefits of such a network are discussed to provide justification for this incorporation. A framework is described, building upon ecological planning processes and incorporating theory and methodology from landscape ecology. The framework includes an assessment of natural and cultural resources, formulating the spatial structure of the network and examination of network components. Implementation strategies are discussed within the context of traditional urban land-use planning practice.