房屋建筑工业灰渣混凝土空心隔墙条板内隔墙的施工技术

系统阐述了房屋建筑工业灰渣混凝土空心隔墙条板内隔墙安装技术和施工操作方法,提出了条板隔墙抗震加固、竖向接板安装、门窗框板安装、板缝补强和条板固定等技术措施,使安装后的条板内隔墙做到牢固、垂直平整、无裂缝.     

Benchmarking System for Evaluating Management Practices in the Construction Industry

This paper presents the results obtained for the initial application of a management evaluation system whose objective is to provide a continuous improvement tool for construction companies through benchmarking management practices. The outlined system seeks to support a benchmarking system that has been recently established in the Chilean construction industry by incorporating qualitative management aspects in addition to performance indicators. Different analyses were made to determine trends in the sector and to establish correlations between qualitative aspects coming from surveys and quantitative aspects coming from performance indicators. Thirteen construction companies participated in the initial application of the benchmarking system. A correlation analysis found that safety performance was strongly related to companies having superior planning and control, quality management, cost control, and subcontractor management policies. A factor analysis found that central office priorities focus on strategic management policies having longer-term competitive impact, while site management emphasizes tactical management dimensions having short-term impact. There is scope to elevate the profile of continuous improvement initiatives to strategic significance at the central office level.     

环境工程专业创新课程体系建设的研究与实践

随着科学技术的不断发展与高等教育改革的进一步深化,环境工程专业显现出的知识陈旧与学生就业的矛盾日益突出,因此创新课程体系建设已迫在眉睫.以此分析环境工程专业创新课程体系建设的目的及意义,介绍了临沂师范学院环境工程专业创新课程体系的建设背景、具体做法及其特点,以期对环境工程专业的建设提供一定的指导和借鉴意义.     

冶金工业建筑中火灾自动报警系统的设计

从系统形式的选择,火灾探测器和报警控制器的选配,报警区域和探测区域的划分,消防控制设备的功能和联动控制要求,以及系统布线等方面系统阐述了冶金工业建筑中火灾自动报警系统的设计方法和设计要点。     

Informatization Index for the Construction Industry

It is normally recognized that information systems (IS) in the construction industry have not been sufficiently used in the era of information. However, so far no serious comprehensive effort has been made to measure the degree of informatization at the industry level. In order to address this problem, in this paper we propose an informatization assessment methodology for the construction industry. An informatization index for the construction industry (IICI) is developed based on specifics of the construction industry. A survey using IICI was conducted among general contractors in Korea, and the results are analyzed in terms of the measure of assessment, IS phases, construction business functions, and size of the firm. It is found that the proposed methodology can provide meaningful indicators that can be used in quantitative comparative assessment from many different perspectives. Details and implications of the case study are briefly presented.     

奥钢联钢铁技术创新实例

总结了一些对钢铁生产链有重大影响的技术发展情况,包括150万t/a产能的FINEX炼铁厂、FINMET直接还原技术的现状、产能达180万t/a的奥钢联福克斯新型ULTIMATE电弧炉、EUROSTRIP带钢生产技术、小方坯高速连铸和高效长材轧制技术等.     

Innovative Central Opening Strut System for Foundation Excavation

A central opening strut system is used to support a diaphragm wall for foundation excavation. This system contains at least one regular polygon module and a number of straight strut members. These strut members connect the diaphragm wall and the regular polygon module together, so that the earth pressure acting on the diaphragm wall in one direction can be transmitted to the diaphragm wall in the other directions by the arch action of this polygon module. In this research, the basic structural behavior of the central opening strut system is examined. A full-scale structural testing of the joint subassemblage is also performed to examine the ultimate strength of the joint. A construction site with five excavation stages and four layers of strut systems is chosen as the case study. The ABAQUS finite-element program is employed in the study of the behavior of this system during various construction stages. From these studies, it is found that the proposed central opening strut system is able to provide a large working space and greatly increases the efficiency of the construction work. Through proper design of the member and the joints, this system provides a better safety factor as compared with the traditional strut system.     

Construction Industry Institute

The Construction Industry Institute has provided research opportunities to many and helped to establish the idea that construction research can have a real impact on the industry. Built on the Business Roundtable’s Construction Industry Cost Effectiveness Project, it has proven the effectiveness of industry–university cooperation in solving real problems.     

浅谈地下连续墙施工问题的处理

文章主要论述地下连续墙施工过程中所遇到问题的处理方法,并采用水泥搅拌桩复合处理塌方事故。     

Innovative ANN Technique for Predicting Failure/Cracking Load of Masonry Wall Panel under Lateral Load

This paper introduces an artificial intelligent technique for predicting the failure/cracking loads of laterally loaded masonry wall panels based on their corresponding failure/cracking patterns derived from the laboratory experiments. First, a lattice is made on a wall panel based on the dimension of the wall panel. Then, the numerical values, 0 or 1, are assigned to the cells in the lattice in order to describe the failure/cracking pattern. Thus, a numerical matrix is formed to show the failure/cracking pattern of the wall panel. Since the matrices for the wall panels with various sizes have different dimensions, the gray level cooccurrence matrix is innovatively used to transfer these matrices into the matrices whose dimensions are the same. Next, the numerical modes of failure/cracking patterns of experimental wall panels and the corresponding normalized failure/cracking loads can be used as the input and output of the artificial neural network (ANN) training data, respectively. Finally, three types of ANN models for predicting the failure/cracking load of the unseen wall panel are achieved by repeatedly training and adjusting so as to optimize its parameters. In a wide significance, this study opens a novel way to establish the relationship between the failure/cracking pattern and the failure/cracking load of the wall panel.     

浅谈冶金企业信息化平台建设

信息自动化在冶金行业中的应用非常广阔,能够为企业节约成本、提高工作效率;利用网络把生产资源有机结合起来,信息自动化利用网络把原是信息孤岛的各部门连接起来.结合目前冶金行业自动化发展,以信息平台为基础开发更多应用.     

建筑幕墙检测双供风波动系统

以现行国家标准<建筑幕墙气密、水密、抗风压性能检测方法)GWr 15227-2007为依据,对建筑幕墙水密性能波动加压法检测中存在的一些问题进行了研究.通过对目前检测市场上采用的几种检测系统进行比较,分析了各自的优点和不足,并在借鉴几种检测系统优点的基础上,提出了双供风波动系统的设计方案,为建筑幕墙检测系统的设计提供参考.     

外墙饰面砖技术施工实践

着重阐述了外墙饰面砖的施工技术及质量预控措施,详细介绍了外墙饰面砖从施工准备到具体流程,再到基层贴面处理的施工全过程,并有针对性的分析了外墙饰面砖起壳、脱落的种种原因和行之有效的预防措施。逐一阐明了外墙饰面砖的允许偏差和质量检查方法,进而保证了外墙饰面砖镶贴的施工质量,提高了建筑物的使用质量和使用寿命,达到了装饰美化的效果。     

Integrated Electronic Commerce Model for the Construction Industry

The construction industry has been relentlessly searching for technology solutions to enhance its productivity and efficiency. This paper presents an investigation that was conducted to obtain an overview of the current situation of electronic commerce applications using Internet and web-based technologies for the construction industry. A conceptual model named Integrated Electronic Commerce Model for the construction industry is proposed in this paper. Based on this model, construction project scheduling process and its related business activities at the industry and enterprise levels are analyzed to compare the interaction and integration of construction processes, in the electronic commerce environment versus those in the traditional environment.     

Survey of Construction Metrology Options for AEC Industry

Techniques for measuring distances, relative heights, and angles have improved significantly during the last decades. Some of these techniques can be used in the Architecture, Engineering, and Construction industry to improve the precision of measurements being made currently using traditional equipment. Other techniques can be used to record information that could not be obtained practically using the traditional equipment. Cost comparisons are made for different scenarios to show that the substantial initial cost of the new hardware can be compensated for by lower labor cost and shorter duration. This paper also points out some of the salient features of the new metrology options. For example, locating the three-dimensional coordinates of a point is necessary for robotic control. In this case, new equipment must be used if the traditional equipment cannot obtain the coordinates at a rate that is useful to control the movement of the robot.     

基于创新价值链的我国林产品创新体系研究

文章总结了我国现有的林产品创新体系并提出其存在的问题,基于创新价值链视角为我国林产品创新体系提出优化方案,并构建了基于创新价值链的林产品创新体系模型.     

Simulation-Based Schedule Estimation Model for ACS-Based Core Wall Construction of High-Rise Building

Many existing studies about construction schedule management focus on the planning phase of a project, particularly on schedule estimation based on the labor resources involved in the project. However, equipment resources, which are another crucial factor in the productivity of a construction project, have not been considered in existing research. Therefore, this study aimed to develop a schedule estimation model considering both labor and equipment resources. For the purpose of this study, core wall construction was selected because it is a very important construction activity in terms of schedule estimation for high-rise building construction. To develop a schedule estimation model for core wall construction, an in-depth case study was conducted. On the basis of the results of the case study, a simulation model was developed using the CYCLONE method. Finally, by using the results of the simulation, a schedule estimation model for core wall construction was developed by conducting multiple-regression analysis. By using the developed model, a project manager can easily, quickly, and accurately perform schedule estimation when there are problems that may cause construction schedule delays during the construction phase.     

Developing ERP Systems Success Model for the Construction Industry

Recently, a significant number of major construction companies embarked on the implementation of integrated information technology solutions such as enterprise resource planning (ERP) systems to better integrate various business functions. However, these integrated systems in the construction sector present a set of unique challenges, different from those in the manufacturing or other service sectors. There have been many cases of failure in implementing ERP systems in the past, so it is critical to identify and understand the factors that largely determine the success or failure of ERP implementation in the construction industry. This paper presents the process of developing an ERP systems success model to guide a successful ERP implementation project and to identify success factors for ERP systems implementation. The paper identifies factors associated with the success and failure of ERP systems, and develops a success model to analyze the relationships between key factors and the success of such systems. The proposed ERP systems success model adapts the technology acceptance model and DeLone and McLean’s information systems success model and integrates those with key project management principles. The goal of the ERP systems success model is to better evaluate, plan, and implement ERP projects and help senior managers make better decisions when considering ERP systems in their organization.     

Innovative System for Off-the-Ground Rotation of Long Objects Using Mobile Cranes

Managing heavy-pressure vessel lifts on construction sites requires planning, arranging adequate crane support, and preparing collision-free rotation (from a horizontal position to a vertical position) of the vessel. Generally, selecting mobile cranes and developing engineered lift studies for vessels are done using two cranes and analyzing the lift for each crane individually on the basis of the selected cranes’ lift-capacity specifications provided by crane manufactures. This practice is relatively costly and time-consuming. Optimizing the mobile cranes’ use and location is also difficult. To assist in the field operation of mobile cranes and to provide engineers with a planning tool, this paper presents a methodology to carry out such a lift utilizing only one crane. Using the developed methodology and mechanism, heavy vessels can be rotated off the ground (in the air) with one crane. The proposed mechanism is supported with a mathematical model that has been developed into a computer system and has been integrated with a previously developed crane selection and ground pressure calculation system and crane database. The developed system provides users with a lift study analysis for a given configuration as well as simulation results with interactive graphics to assist in the selection of an optimum configuration. This research is important as projects involving heavy lifts need to reduce the cost and time associated with construction operations.