On using a communication-mapping model for environmental management (CMEM) to improve environmental performance in project development processes

This paper examines the existing environmental management communications practice among project participants in project development processes. There is a growing pressure for all project participants to extend their traditional business objectives of only lowering cost and shortening project duration to improve environmental performance. In achieving better environmental performance, it is essential to collect responses from project participants including project clients, consultants, contractors and various sub-contractors to build up collaboration. As this collaboration is based largely on communications among various parties, the validity and effectiveness of the communications are essential to enable effective collaboration. By investigating practical applications, this paper identifies gaps of communications among project participants, and shows that these gaps present barriers to the improvement of environmental performance in construction. Possible solutions to communication gaps are investigated, leading to the proposal of a communication-mapping model for environmental management (CMEM). The CMEM is proposed as a method aimed at effectively implementing environmental management in construction practice. Data used for this study are collected from six construction projects in Hong Kong. A free-flow mapping approach is also employed to assist the investigations. It is believed that this study can help improving communications among project participants and environmental performance in the construction industry.     

复杂条件下某基坑工程监测方案设计及其应用

以秦皇岛市某滨海深大近邻基坑工程为背景,进行了基坑施工监测方案设计,并应用灰色系统分析方法对该基坑工程的支护变形进行了预测分析,工程实践证明,取得了较好的技术经济效果,对类似工程有借鉴和指导意义。     

谈电气照明安装工程的质量监控要点

针对电气照明安装工程的重要性，深入探讨了电气照明安装工程的质量控制要点，指出在电气照明工程施工中做好关键点的质量监控是确保工程质量、减少照明工程事故的有效手段。     

高速公路建设项目可持续发展指标体系研究

介绍了高速公路建设项目可持续发展的内涵,对高速公路建设项目可持续发展的评价内容进行了分析,并建立起可持续发展评价指标体系的框架,以使高速公路建设项目走真正的可持续发展之路。     

建筑工程项目设计安全评价指标体系设计

在深入分析设计阶段影响施工安全的人、机、管理、环境因素的基础上,筛选出设计人员安全意识素质、建设项目设计安全法律法规、公司安全管理机构、基地气候等相关指标,进而构建出建筑工程项目设计安全评价指标体系。     

How (do) internal capabilities and the geography of business networks shape the performance of contractors in public procurement tenders? Evidence from the construction industry

Public procurement tenders (PPTs) represent one of the largest sources of income for construction companies; the identification of factors that could favour the winning of these projects becomes more and more interesting. Our work aims to explore how firm-specific capabilities (project management, project administration and innovation) and the geography of its business network shape the success of contractors in winning PPTs, measured as the average value of projects won by the firms. We propose an empirical study of contractors involved in public procurement projects in the construction industry in three Italian regions from 2008 to 2012 employing a fuzzy set qualitative comparative analysis. This methodology allows analysing how different combinations of causal conditions contribute to an outcome. Our research highlights that there are three successful strategies for firms attempting to obtain high-value PPT projects: (1) invest in high-level project management capabilities, engage in business networks with distant clients and intensify innovation capacity; (2) invest in high-level project administration capabilities, engage in business networks with local clients and suppliers (within 100 km), report a large number of certifications and show a high innovation capacity; and (3) invest in growth strategies to increase the size of the company.     

广州市水资源在线监测信息系统问题研究

分析了目前广州市水资源监测存在的问题,从水资源在线监测信息系统建设的可行性、布点原则、主要内容、项目意义等方面介绍了建设该系统的必要性。水资源监测信息系统的建立,不仅能够更有效地辅助水质管理和决策,提高管理效率和决策的科学性,还能使水资源统一管理,提高水资源监测信息化、现代化水平和管理能力。     

浅析勘察设计企业项目信息化管理体系的构建

坚持科技创新和信息化建设的导向,突出企业信息化管理体系的构建,始终坚持理论与实践相结合的研究模式,努力推进建筑产业现代化的发展,着力提升企业核心竞争力,促进建筑业持续健康发展。通过本文针对勘察设计企业项目信息化管理的研究成果,希望为建筑企业在进行信息化建设提供参考,如完善企业经营管理、增强企业竞争力、提高经济效益等方面具有较强实践的借鉴意义,为推动建筑业信息化建设奠定一定的理论与实践基础。     

Characterization of antibacterial polyethersulfone membranes using the respiration activity monitoring system (RAMOS)

Membranes with antibacterial properties were developed using surface modification of polyethersulfone ultrafiltration membranes. Three different modification strategies using polyelectrolyte layer-by-layer (LbL) technique are described. The first strategy relying on the intrinsic antibacterial properties of poly(diallyldimethylammonium chloride) (PDADMAC) and poly(ethylenimine) (PEI) exhibits only little antibacterial effects. The other two strategies contain silver in both ionic (Ag⁺) and metallic (Ag⁰) form. Ag⁺ embedded into negatively charged poly(sodium 4-styrene sulfonate) (PSS) layers totally inhibits bacterial growth. Ag⁰ nanoparticles were introduced to the membrane surface by LbL deposition of chitosan- and poly(methacrylic acid) - sodium salt (PMA)-capped silver nanoparticles and subsequent UV or heat treatment. Antibacterial properties of the modified membranes were quantified by a new method based on the Respiration Activity Monitoring System (RAMOS), whereby the oxygen transfer rates (OTR) of E. coli K12 cultures on the membranes were monitored online. As opposed to colony forming counting method RAMOS yields more quantitative and reliable data on the antibacterial effect of membrane modification. Ag-imprinted polyelectrolyte film composed of chitosan (Ag⁰)/PMA(Ag⁰)/chitosan(Ag⁰) was found to be the most promising among the tested membranes. Further investigation revealed that the concentration and equal distribution of silver in the membrane surface plays an important role in bacterial growth inhibition.     

浅谈建设工程监理工作的控制任务

阐述了建设项目施工阶段监理工作中"五控制"的内涵,探讨了监理控制工作在工程建设中取得的成绩与存在的问题,提出了做好监理工作"五控制"的方法和措施,以使建设工程监理工作更上一个新的台阶.     

Improved visualization of infrastructure monitoring data using building information modeling

Abstract

With growing complex infrastructure, autonomous condition assessment of large-scale structures has garnered significant attention over the past few decades. Data-driven structural health monitoring (SHM) techniques offer valuable information of existing health of the structures, maintain the safety and their uninterrupted use under varied operational conditions by undertaking timely risk and hazard mitigation. Traditional approaches, however, are not enough to monitor a large amount of SHM data and conduct systematic decision making for future maintenance. In this article, building information modeling (BIM) is utilised as a promising computing environment and integrated digital representation platform of SHM that can organize and visualise a considerable amount of sensor data and subsequent structural health information over a prolonged period. A BIM-enabled platform is utilised to develop the proposed visualisation tool for a long-span bridge and enable automated sensor data inventory into the BIM environment. Such automated tool facilitates systematic maintenance and risk management, while avoiding manual errors resulting from visual inspection of the structures. The proposed method can be considered as a user-friendly and economic framework for condition assessment and disaster mitigation of structures from long-term monitored data.     

Real-time performance monitoring of tuned mass damper system for a 183 m reinforced concrete chimney

A 183 m reinforced concrete chimney for a coal-fired power station was instrumented in the latter part of its life during the construction of a replacement chimney. Because of concerns about large-amplitude response induced by interference effects from the new chimney in the prevailing upwind direction, a response monitoring system was installed, quickly followed by a tuned mass damper (TMD) system. As well as providing live display of the chimney response, the monitoring system was also used to check the functioning of the TMD. The monitoring system featured a direct implementation of the stochastic subspace identification procedure in the ‘virtual instrument’ controlling the system, so that modal damping values for the system were displayed automatically, in real-time. The system thus provided an immediate visual indication of increased damping levels during strong winds, showing the correct functioning of the TMD. The paper describes the chimney, the monitoring system and its installation, the data processing and system identification procedure, together with performance data before, during and after installation of the TMD.     

Health monitoring system of a self-anchored suspension bridge (planning,design and installation/operation)

Recent advances in sensing technologies make it feasible and practic al to install sensors on expensive civil infrastructures, such as bridges, for safety monitoring during construction and long-term assessment of the structures condition. This paper presents a case study of a structural health monitoring (SHM) and bridge management system (BMS) installed in Yeongjong Bridge in South Korea. This is a self-anchored suspension bridge on the expressway that links Seoul to Incheon International Airport. Experimental data have been collected from the bridge for two years, since its completion in 2000. This paper presents a list of examples where the structural health monitoring system can be applied and provides general guidelines and recommendations for deploying a monitoring system in terms of (1) sensing and instrumentation, (2) data collection and signal processing, and (3) information processing.     

暖通空调系统的计算机控制管理──第4讲 建筑设备自动化系统

介绍商业建筑中的建筑设备自动化系统（ＢＡＳ），先简单列出ＢＡＳ可能包括的各个子系统应具有的功能，接着讨论了为实现这些功能所要求的系统配置，其中包括通讯网络、综合布线以及中央管理机，最后着重讨论了ＢＡＳ的各种管理功能及实现方法。     

大型石化建设工程（福建LNG）项目管理信息系统建设实战剖析

1 项目概况 福建LNG(Liquefied Natural Gas)项目是对外合作的国家能源发展战略项目,由接收站和输气干线项目,运输项目,莆田、晋江和厦门三个燃气电厂以及福州、莆田、泉州、漳州、厦门五个城市燃气利用工程共10个分项目组成.工程分两期建设,一期工程规模为260万吨LNG/年,总投资约240亿元,2007年底建成投产.     

计算机机房工程系统集成管理方法

首先介绍了计算机机房工程所包含的系统,应用系统集成的观点,从分工界面、实施步骤、输入输出、参照标准、异常处理五个维度对项目实施阶段进行了说明,总结了在计算机机房工程集成实施过程中所采用的管理流程和方法。     

基于3D GIS的建筑变形自动化监测与管理系统的研究与开发

本文针对大型和高层建筑物的变形监测问题,阐述了研究并开发建筑物变形信息自动化采集和管理系统的原理和方法,并通过实例论证了系统构建方案的可行性和实用性.     

Structural health monitoring system of the long-span bridges in Turkey

Abstract

This study presents the general features of the structural health monitoring (SHM) system of the long-span cable-supported bridges in Turkey, namely the First Bosphorus Bridge, the Second Bosphorus Bridge (Fatih Sultan Mehmet Bridge), the newly constructed the Third Bosphorus Bridge (Yavuz Sultan Selim) and the Osman Gazi Bridge (Izmit Bay Bridge). Due to the critical function of the bridges in the transportation networks of Istanbul, structural health under extreme and operational load cases without interruption of their operation is essential. The SHM systems are already available and in use for the First and Second Bosphorus Bridges; however, the Yavuz Sultan Selim and the Osman Gazi Bridges, only have the preliminary SHM systems established. General preferences of the current and planned SHM systems of the bridges are given based on the monitoring objectives and requirements. Data collected from the SHM systems are also exhibited as an illustration for structural modal identification of the First Bosphorus Bridge. Based on the experiences from the current SHM systems, future works and planning are recommended to effectively design new SHM system and to efficiently update the current ones.     

建设工程项目代建制模式下竣工验收备案管理

通过对代建制模式下的竣工验收管理进行研究和分析,结合现行法律法规和工作实际对代建制模式下工程竣工验收的前提条件、准备工作、组织管理、竣工备案等作了阐述,同时提出了完善代建制的建议,以供借鉴。     

消防远程监控系统发展方式的建议

基于中国在消防远程监控技术方面现有标准规范,从控制器、传输网络、监控中心及用户接入意愿等方面分析消防远程监控系统推进过程中出现的问题。针对消防行业生态圈的政策环境和基本构成提出建议,建立生态圈模型,并对消防行业生态圈进行互动分析。提出政府宏观政策支持建议。