Current condition and future directions for lean construction in highways projects: A small and medium-sized enterprises (SMEs) perspective

The aim of this study is to identify the parameters defining how Lean Construction (LC) is being implemented (current condition) and how LC can be further promoted (future direction) from a Small-Medium Sized Enterprises (SMEs) perspective. Although SMEs constitute the largest group in construction supply chains, LC, as an emerging phenomenon in civil construction project management, has been rarely investigated from an SMEs perspective. Also, overlooking the more macro factors like project governance and supply chain management, LC deployments have been mainly discussed from a production process perspective to date. After a review of the extant literature and 20 interviews with managers from the highways sector, a list of 31 current condition and 40 future direction statements were produced, classified under the delivery, process, training, project governance and supply chain related headings and used in a questionnaire survey with 110 responses. The current condition highlights problems like a short-term relations structure, competitive tendering mechanisms, fragmentation, problems in engaging with SMEs for LC, unstandardised LC techniques, and issues with convincing SMEs to deploy LC by demonstrating the business case on mutual benefits. Action items relating to the current project delivery structure were given the highest importance by the supply chain, alongside the LC training and project governance issues for the future of LC at highways SMEs. Additionally, a statistically significant correlation was identified among many future action items.     

民用建筑能耗的统计方案及数据库软件在建筑节能中的应用研究

介绍了国内外建筑能耗统计的发展状况,着重阐述了民用建筑能耗统计方案及其数据库软件在建筑节能领域的应用研究过程。     

Life cycle performance goals for civil infrastructure: intergenerational risk-informed decisions

Civil infrastructure facilities play a central role in the economic, social and political health of modern society. Such facilities are susceptible to ageing, which is stochastic in nature and makes their reliabilities time dependent. Life-cycle engineering analysis and risk-informed decision tools have advanced in recent years for managing public investments in performance assurance and risk mitigation of civil infrastructure. However, certain civil infrastructure projects may be designed for service periods that are substantially longer than what has been typically expected of buildings, bridges and similar facilities, extending the potential consequences of life-cycle engineering decisions far beyond the limits for which there is practical experience. Current assessment procedures will require modification to evaluate performance of civil infrastructure facilities over extended time frames and to support sustainable and equitable decisions affecting long-term public safety. This paper considers a number of key issues that must be addressed in life-cycle reliability assessment of civil infrastructure facilities that must remain functional for service periods of several generations, and introduces perspectives on risk that are germane to ensure sustainability and intergenerational equity in risk-informed decision-making.     

多层民用建筑钢结构的设计

结合二项工程设计实例,经多方案的分析比较,探讨了多层民用建筑钢结构的结构体系,为类似建筑物结构方案的确定提供了可靠的设计依据。     

构建大土木专业平台课程体系——土木工程、建筑环境与设备工程专业平台课程体系的构建与教学实践

对土木工程、建筑环境与设备工程两专业的培养方案进行了对比与分析 ,发现两者在面向的工程对象、专业的课程设置方面有许多共同之处 :都以房屋、地下等建筑工程为实施对象 ;公共基础课程完全相同 ,占本科教学总课程学分的 5 0 % ;专业基础方面有一半课程内容基本重合 ,占总课程学分的 2 0 %。在对比、分析的基础上 ,提出了拉通两者专业平台课程体系的设想 ,并进行了教学实践。     

中国牛形古村落--安徽黟县宏村

安徽省黟县东北部的宏村，融自然景观和人文景观为一体，恰似山水长卷，被誉为“中国画里的乡村”。其将整个村子构建成“牛”型结构布局的理水艺术，更是被誉为当今世界历史文化遗产的一大奇迹。2000年11月30日被联合国教科文组织世界遗产委员会列入世界文化遗产名录。     

湿热地区的建筑热环境控制——以住宅设计为例

在总结湿热地区传统民居气候设计经验的基础上,对该地区现代建筑的设计原则和设计风格做了较详细的探讨,最后以住宅设计为例,叙述湿热地区应采取的建筑技术措施.     

常州市城市人防工程规划编制技术探讨

以常州市城市人防工程规划的编制为例,探讨了城市人防工程规划的编制必须改变以往单纯的人口防护或依靠单个工程实施防护的模式,需按"城市防护体系-人防工程控制体系-人防工程规划"的技术路线和框架进行,从实际出发合理确定有关技术数据和规划期间人防工程规划建设量,遵循与城市地下空间开发利用相结合的方针.     

Prediction models for sewer infrastructure utilizing rule-based simulation

Management of infrastructure projects is becoming increasingly challenging due to inherent uncertainties. The most effeective way to deal with uncertainty is to collect supplementary information and knowledge. When expensive or infeasible, quantification of uncertainty may be performed using analytical or simulation techniques. The City of Edmonton, Canada has approximately 4600 km of sewer pipes in the combined, sanitary, and storm sewer local systems with uncertainty issues related to deterioration. The City has taken a proactive approach with respect to sewer rehabilitation, as it is more cost-effeective to repair a defective pipe prior to failure rather than after a collapse. This article demonstrates an approach for predicting the condition of a sewer pipe and the related cost of rehabilitation, given the limited data. Three models are described in this article that are developed to assist the City of Edmonton to effeectively plan maintenance expenditure. Each model uses a combination of rule-based simulation and probability analysis to assist in the planning of future expenditures for sewer maintenance, thereby producing an invaluable planning tool.     

民用建筑给排水系统噪音治理的研究与实践

针对民用建筑给排水系统中的噪音扰民问题,从增压设备、给水管道、卫生器具、排水管道四个方面进行了噪声来源剖析,并针对性地给出治理方案,在重点问题上通过实践案例阐述了解决方案的思路和实施效果。