大连东北特钢旋流井逆作法施工

在东北特钢厂旋流井施工中,分析了沉井下沉施工的弊端,结合施工现场实际情况进行了施工方案比较,采用了旋流井逆作法的施工技术。针对施工中存在的问题,成功地解决了在沿海地区、厂房内和岩石爆破施工,容易造成已有建筑物出现下沉的技术难题,确保了施工质量。     

3 200 m3高炉工程出铁场耐热混凝土施工

概述了出铁场耐热混凝土的施工技术.针对施工中出现的问题,采取了相关的施工技术,解决了耐热混凝土浇筑及与普通混凝土接缝处理等施工难题,确保了施工质量.     

冷轧油膜轴承静压系统配管施工

在八钢冷轧项目中对油膜轴承静压润滑系统的安装和施工都是首次,没有施工经验,通过在施工和建设单位的共同努力,完成了配管施工任务。文章介绍了配管施工组织及施工方法。     

天铁热轧板卷轧机基础施工技术

天铁热轧板卷主轧线轧机基础在施工中综合运用＂后浇带＂施工法、多层纤维板大模板技术、大体积砼温度控制施工技术。有效地控制了超大型箱体基础有害裂缝的发生,提高了混凝土基础外观质量,缩短了施工周期,在432m的主轧线基础施工中,创造了国内同类型基础施工的最短记录,达到施工质量又快又好的效果。     

高层建筑结构转换层的施工

带转换层的高层建筑施工的关键在于确定转换层的施工方案,它直接影响到转换层的施工质量和施工效益,而在施工方案中,模板工程的质量控制又是重点。文章分析了高层建筑结构中设置转换层的必要性,并对转换层的常用结构形式进行了对比分析,进而对高层建筑结构转换层的施工进行了论述,最后提出了高层建筑转换层施工技术的现实意义。     

电气安装工程与土建工程的施工配合

主要介绍了在建筑工程施工中,土建施工与电气施工配合的重要性,论述了在施工各阶段相互配合的方法以及技术要求。     

高层建筑施工管理存在的问题与应对策略

随着城市化进程的发展,高层建筑越来越多.高层建筑技术复杂,施工难度大.合理的施工管理方法对提高建筑质量缩短建设工期以及控制施工成本都有至关重要作用.本文结合高层建筑的施工特点,分析了高层建筑施工过程中的常见问题,提出了高层建筑施工管理方法.     

建筑工程雨季施工与安全管理措施分析

每年我国大部分地区都会在夏季的一段时间里迎来雨季,大范围的强降雨对于建筑工程的施工建设会产生一定的影响,建筑工程雨季施工需要充分考虑到多种因素,积极采取安全管理措施,防范雨季施工的各种突发性和不确定性事件,加强建筑工程施工质量控制,保障建筑工程的顺利施工建设。作者分析了建筑工程雨季施工的总体要求和建筑工程雨季施工存在的问题,阐述了建筑工程雨季施工技术和建筑工程雨季施工的安全管理措施。     

沥青公路面层施工质量监理要点

面层施工是沥青公路施工质量控制的重点,文章从施工监理的角度出发,简要分析了沥青公路面层施工质量控制要点,包括准备阶段的质量控制工作,面层施工阶段的施工质量监理以及施工后的质量检测与评定.     

谈谈建筑工程施工中如何安全管理

在建筑工程施工过程中,进度落后可以通过增加施工技术人员、增加平行施工作业等措施来加快,质量不合格可以加固甚或重建,但是发生施工安全事故却是无法弥补的.本文针对我国建筑工程施工安全管理存在的问题,提出了建筑工程施工-体化安全管理模式,并探讨了其架构建立,原则和特点,最后指出了一体化安全管理在建筑工程施工中的重要作用.     

步进梁式加热炉水冷梁柱浇注包扎施工技术改进

步进梁式加热炉水冷梁柱浇注包扎施工是筑炉重点和难点。从浇注包扎施工的模具着手改进施工技术，以提高浇注包扎施工的质量，降低施工难度，并降低施工成本。     

Measuring Quality of Writing of Construction Specifications

The quality of writing of construction specifications is one of the greatest challenges facing construction contractors or their representatives in today’s business environment. Writers of construction specifications have been criticized for their contribution toward construction disputes. Although the construction business environment has moved toward modernization of some of its business processes, claims arising from construction specifications continue to rise. Equally, a written exposition of a quantitative instrument that measures the quality of writing of construction specifications is not available in the literature. Thus the construction industry needs to develop methodologies for measuring the quality of writing of construction specifications that should overcome their current underperformance in this area. This paper presents the procedures that underlie the quality of writing of construction specifications, gives a management tool for facilitating its measurement, and also presents the results of construction contractors’ practices regarding the quality of said writing. The results show that the surveyed Malawian construction contractors were in the process of putting in place principles to govern the quality of writing of construction specifications.     

浅谈工程项目建设质量控制应把握的重点

"百年大计,质量第一"的方针,对保障我国工程项目建设的施工质量,促进建筑行业的健康、稳定发展起了重要作用。工程项目建设质量的优劣,不但关系到工程项目建设建筑产品的适用性,而且还关系到人民生命财产的安全和社会安定,直接影响国家经济建设的速度,质量低劣带来的直接和间接经济损失大的无法估量。所以,在工程项目建设中,想要取得良好的建筑施工质量,应严格执行项目质量控制的原则,加强建筑施工质量控制和管理,把控建筑施工各个阶段的质量,实现建筑工程项目的有序开展和优质完成。尤其施工阶段的质量控制是工程项目建设质量控制的重点。     

大模板施工中飘窗板浇筑方法改造探讨

由于现阶段大模板工程施工中对不同标高结构施工采取二次浇筑的方法,既不经济,又存在质量隐患。本文以飘窗板施工为例,通过模板改造从而改变施工方法的角度,从技术质量、经济、施工进度等方面对新旧方法进行了对比讨论。     

加强铁路既有线施工组织减小工运矛盾

文章从铁路既有线施工组织的特点着手,从施工组织五个方面进行分析,提出做好铁路既有线施工组织,是最大限度确保施工安全和进度,减小工运矛盾的主要途径。     

Scheduling∕Cost Optimization and Neural Dynamics Model for Construction

A general mathematical formulation is presented for the scheduling of construction projects and is applied to the problem of highway construction scheduling. Repetitive and nonrepetitive tasks, work continuity constraints, multiple-crew strategies, and the effects of varying job conditions on the performance of a crew can be modeled. An optimization formulation is presented for the construction project scheduling problem, with the goal of minimizing the direct construction cost. The nonlinear optimization is then solved by the neural dynamics model developed recently by Adeli and Park. For any given construction duration, the model yields the optimum construction schedule for minimum construction cost automatically. By varying the construction duration, one can solve the cost-duration trade-off problem and obtain the global optimum schedule and the corresponding minimum construction cost. The new construction scheduling model provides the capabilities of both the critical path method (CPM) and linear scheduling method (LSM) approaches. In addition, it provides features desirable for repetitive projects, such as highway construction, and allows schedulers greater flexibility. It is particularly suitable for studying the effects of change order on the construction cost. This research provides the mathematical foundation for development of a new generation of more general, flexible, and accurate construction scheduling systems.     

Linkages between Construction Engineering Education and Research

The needs of the construction industry require that an appropriate balance be provided between construction engineering topics and management topics in both education and research. Because construction is less mature as a research area compared to other areas in civil engineering, limitations on research funding have made the investigation of construction management topics more feasible in comparison to construction engineering topics. Because faculty members are drawn from the pool of Ph.D. students who have primarily researched management topics, there has been a tendency for them to continue emphasis on management topics in both education and research. Other civil engineering disciplines form their research programs around the needs of design codes and standards’ development, and academic participation is high. Similar efforts exist within construction engineering; however, there is less academic participation. It is suggested that greater effort be invested in the improvement of construction process standards and specifications so that construction engineering research efforts can advance construction process standards and stimulate increased engineering educational exposure. It is also suggested that academics who are interested in construction engineering research should consider participating in the specification improvement processes that occur at the national and state levels. A process for wider participation in construction engineering research and standards development is recommended.     

Ubiquitous Sensor Network for Construction Material Monitoring

Timely acquisition of construction resource information is an essential task for construction engineers and managers. Due to the harsh and dynamic construction environment, it is not easy to acquire construction information in real time. This paper presents a radio frequency identification (RFID) and ZigBee (IEEE 802.15.4)-based system to manage materials on a busy construction site where a data communications system is not in place. RFID tags are attached to and used to identify various kinds of construction materials, and the ZigBee communication technology is used to wirelessly transfer this information. To confirm the viability of our system, the RFID and ZigBee technologies were assessed using an indoor experiment. Following this, a field experiment was then conducted. On a building construction site, a range of construction materials was identified using RFID tags and this information was transferred to an end user with the help of ZigBee multihop networking. The results of the field experiment showed an acceptable reading range and rate for the proposed system. Therefore, the integrated system with RFID and ZigBee modules demonstrated great potential for improving the existing management processes for construction resources on large and complex construction sites.     

Tailoring Competitive Advantages Derived from Innovation to the Needs of Construction Firms

Innovation is often classified as a cost intensive investment in the construction industry with indefinite returns. Due to the clients’ tendency to award projects based on the lowest costs, innovation is often seen as an unfeasible strategy toward the competitiveness that construction firms are seeking. This study questions whether it is indeed ineffective for construction firms to develop their competitive advantage through innovation. By the application of statistical data across 18 Organization for Economic Cooperation and Development (OECD) countries and expert interviews in Singapore, innovation systems models are developed for both manufacturing and construction firms, respectively. Through comparison of both models, the results suggest that the peculiarities of the construction industry deem innovation as a poor competitive instrument for direct profits. Instead, construction firms can develop their competitive advantage through manipulating innovations that consumers are willing to pay for and innovations that would reduce construction costs. It is recommended that construction firms first utilize quality improvements to exploit consumers’ willingness to pay for innovative products. This initiative would enable construction firms to improve their finances for innovation and develop their “brand” in construction products. Sustainable competitive advantage could then be firmly established when construction firms engage in productivity improvements that lead to lower construction costs and/or faster completion times. This study concludes that innovation can be a useful competitive tool if construction firms aptly strategize it in according to its competitive environment.