利用鞍钢半连轧厂老线设备改造设想

在鞍钢半连轧厂的改造中，充分经济合理利用老线设备是一个很重要的课题，通过研究分析，做出三个方案，即ＩＳＰ方案，ＣＳＰ方案和常规热带钢生产工艺方案，比较结果，把ＩＳＰ方案作为利用老线１７００ｍｍ轧机设备，易地再建的推荐方案。     

发电机灭磁技术的应用和研制现状

通过分析发电机灭磁技术的发展过程，介绍几种常用的灭磁保护方案，分析各种灭磁方案的特点，探讨各种灭磁方案存在的问题，推荐一种新型的交流灭磁保护方案。     

金堆城露天矿北部边坡二期综合治理方案研究

通过对露天矿北部边坡的现场勘察，分析了影响北部边坡稳定性因素，提出了三种治理方案，在保证边坡安全的前提下，对三种方案进行了技术经济比较，最后确定了一种方案作为二期综合治理方案。     

论总图方案的覆盖与择优

本文论述了编制工厂总图方案的目的和用意，以及如何编制好总图方案。文章提出，每个总图方案要具有代表性和可靠性，而且在总图方案的总和上要覆盖各种可能的情况，只有在此基础上择优，才会产生最佳的结果。     

某金矿强化开采的研究

本方案针对该金矿体的赋存条件，通过技术经济研究论证，提出了露-地联合开采方案，该方案是矿山形成一定规模、赢得经济效益的最佳方案，是该矿实行强化开采的有效途径，对某些较厚露头金矿脉的开采具有较大的参考价值。     

采矿方案优选的层次分析决策方法

采矿方案的优选是一个典型的多目标决策问题，涉及到矿山的资源效益和经济效益。传统的方法是通过方案初选、技术经济分析与方案的综合比较来选择方案的。但有时从经过综合比较后得到的几个非劣方案中确定最后的开采方案却显得非常困难。本文运用层次分析法，充分利用专家经验，进行定性和定量的综合决策来确定采矿方案。     

碳排放计算在矿山厂址方案比选中的应用

在“双碳”目标背景下，以某钨矿为例，将碳排放计算引入矿山项目的厂址比选设计中，对根据建设条件拟定的4个厂址方案进行比较，梳理不同厂址方案的主要可比基建工程量和可比运营成本，根据碳排放因子，计算不同厂址方案基建工程和生产运营部分的碳排放量，从而得到最优的厂址方案。实践证明，依据可比碳排放比较，得出的最优厂址方案，与根据计算投资和运营费得出的结论一致。     

矿山工业废水综合利用与治理研究

针对武山铜矿工业废水排放特征、生产工艺和矿石性质特点，提出四种综合利用与治理方案。通过方案对比研究，最终推荐厂内废水直接回用方案，该方案不影响选矿指标，废水利用率达65％以上。     

基于层次分析对某铁矿的采矿方法选择

针对安徽龙桥铁矿现有的采矿方式无底柱分段崩落法中崩落层难以形成，存在大量采空区等安全隐患问题.提出采用层次分析法和模糊数学方法对多种采矿方案进行综合评判和优选，在选择较优采矿方案的过程中，针对影响采矿方案的指标建立采矿方案综合评判指标体系，将生产能力、采矿成本、千吨采切比和劳动强度等转换成判断矩阵, 从而建立模糊综合评判模型，最后采用模糊数学方法计算出每个采矿方案的综合优越度，得出龙桥铁矿的备选采矿方案的各优越度为33.8 %, 21.3 %, 26.7 %, 25.2 %，因此第1种采矿方案为较优采矿方案.      

天津钢铁有限公司续建工程原料场地基处理方案的优化

介绍了天钢原料场地基处理技术及方法，针对天钢原料场特殊的地质条件，设计了三种地基处理方案并进行方案比较。选择方案三，采用特殊的处理技术，对其优化。生产实践证明，优化方案是成功的，节省了资金302万元，缩短工期3个月。     

Collaborative Planning and Scheduling of Interrelated Design Changes

During the detailed design stage of a building project, a vast amount of mostly interrelated design information is generated and communicated among specialists from several disciplines. Changes in some design information are inevitable due to the iterative nature of the design process. In many cases, when the design of a building component is modified by one discipline, this change affects the design of many related building components that are the responsibility of several other design disciplines. Commitment and resources are needed to accommodate such design changes to maintain compatibility among all the design information. Otherwise, incompatibility errors become embedded in the design information leading to numerous problems during the construction of the project. This paper presents a computer-assisted methodology that helps design managers in planning and scheduling changes with interrelated effects on the design information.     

Sources of Changes in Design–Build Contracts for a Governmental Owner

In recent years, many U.S. federal, state, and local governments have been authorized to use the design–build method of project delivery instead of the traditional design–bid–build method. Recent studies have not been definitive on the cost advantage of design–build for governmental owners. There are fewer change orders in design–build due to design errors because the designer (architect/engineer) and contractor are one entity, but there are other causes of change orders. Some literature suggests that changes requested by the owner of the facility are greater with the design–build method. This research examines the causes for construction-phase changes in 14 design–build and 20 design–bid–build projects. Total changes, expressed as number per contract, cost per contract, or percentage of original contract, were significantly lower in design–build. Fewer design errors in design–build accounted for this advantage. The number of owner-requested changes was significantly greater in design–build. The cost of owner-requested changes, averaged over all the projects, was significantly less for design–bid–build. The differences in changes due to differing site conditions were not significant. The concept that there are more owner-requested changes in design–build projects is supported by this research.     

Identifying a Design Management Package to Support Concurrent Design in Building Wafer Fabrication Facilities

Concurrent design is commonly used in building a semiconductor wafer fabrication facilities to shorten projects. Current practice in managing a design schedule involves preset milestones that represent percentages of completion. Such a simple control scheme does not provide sufficient information to support concurrent design. This study presents an analytical model that applies a cluster identification algorithm to separate the work of designing a multisystem project into management packages that support concurrent design. Tasks within a package have strong informational dependency relationships on each other, and are not suited for concurrent design. Tasks of different packages have weak dependency relationships on each other, and are suited for concurrent design. Tendering design work based on these packages may reduce the number of design interfaces between participating design firms. Possible application of the model includes the management of design schedule, design contract tendering, and design information flow.     

MC/ServiceGuard与Oracle RAC方案的设计

在不锈钢分公司的产销系统成功运用MC/ServiceGuard集群实现了高可用性系统设计的基础上,着重从产销系统的特点、系统的硬件环境的设计、网络环境的设计、共享存储的设计、Oracle RAC卷组的设计、MC/SC-Oracle集群的设计和集群文件生成与配置等方面,介绍了MC/ServiceGuard集群系统的设计方法和系统文件配置.     

箱形盖板的优化设计

优化设计在解决复杂机械产品设计中 ,能从大量方案中找出可行方案 ,再从可行性方案中找出最优设计方案 ,从而大大提高设计质量和设计效率。利用优化设计方法 ,论述了箱形盖板在满足设计要求条件下达到重量最轻的优化过程。     

浅谈结构设计中的质量管理

本文通过对建筑结构设计前期质量管理,设计过程质量管理,设计后期质量管理的阐述,分析了建筑结构设计全面质量管理的过程,简洁透明、便于掌握。有效地执行建筑结构设计全面质量管理是设计单位在同行业竞争中的关键因素。     

Preliminary Design System for Concrete Box Girder Bridges

A neural network-based design system is presented in this paper for preliminary design of concrete box girder bridges. The system is based on a loose coupling model that integrates the artificial neural network and the fuzzy network to perform the task of noisy data filtering, knowledge extraction, and candidate synthesis. After a comparative study, the radial basis function neural network is chosen in the design knowledge generation instead of the commonly used back-propagation neural network. The fuzzy network is employed to determine the integer types of design parameters. The developed system provides a few feasible design configurations, and enables the user to overwrite some of the design parameters, so that that user can have a wide choice in his preliminary design. The accuracy of the neural network testing and the influence of the size of the design cases on the neural network prediction are discussed. A design example is included to illustrate the design procedure.     

Aesthetics and Philosophy in Bridge Design in Japan

This paper investigates the background of current trends in bridge design in Japan in the context of common design practice, which distinguishes architecturally, industrially, and structurally led designs. Because the philosophy of engineering design has not been recognized outside the rational philosophies of structural mechanics, this paper introduces a method of design and evaluation that is based on the application of architectural philosophies for bridge design. While current criticism is basically devoted to the evaluation of structural and visual qualities of bridges, the method illustrated by the case study of Japan Bridge, includes the aesthetic and ideological analysis of bridge design, which, like the analysis of building design, draws on subjective design concepts. Unlike in the conventional critical apraisal of bridge design, this method allows for the reintegration and evaluation of the structural and architectural values of bridges. Considering the complexity of comtemporary Japanese bridge design, landscape-oriented, structure-oriented, preservation-oriented, thematic, and symbolic trends in bridge design have been distinguished. Rediscovering philosophy in bridge design can be an effective way to invoke a wider response to the creativity of bridge designers.     

Design Structure Matrix Implementation on a Seismic Retrofit

A void exists in development of design theory methodology within the structural engineering community. This void hampers efforts to resolve performance deficiencies including cost over-runs, unplanned rework, and suboptimal design. In manufacturing, product design and production improvements have resulted from implementation of the design structure matrix (DSM) methodology. DSM offers a means to represent, analyze, and decompose complex systems in order to improve their performance. DSM use within the architecture engineering construction (AEC) industry has been sporadic and focused primarily in the U.K. Where applied, DSM has proven effective at helping AEC design teams streamline processes to address nonlinearity (nonsequential information flows) introduced by iteration and complexity in design. When a DSM reveals iteration and highly dependent work, group brainstorming, collocated design sessions, rapid feedback, set-based design, and collaborative design aids can be used to increase overall team effectiveness. This paper examines a case study where DSM-based planning software was used on a seismic retrofit project to drive process improvement in design management. DSM correctly identified iterative activities central to design and provided the following; (1) a common vocabulary to discuss rework in the context of a multidisciplinary design team; (2) a rational method to schedule team collocation and brainstorming efforts to maximize their benefit; and (3) a means to consider iterative activities (and associated hand-offs) in design work structuring.     

Concept for Type-Local Instance–Global Instance Object Modeling and Application to Structural Design of Buildings

Rational data modeling is prerequisite to the computerization of design, and the use of design information in the subsequent work, in areas such as cost estimation and construction. In particular, the structural design of buildings consists of a long series of unit steps and is nonprocedural and data intensive compared with structural analysis problems that are procedural and computation intensive. Hence, there is a need to investigate the characteristics of the problem and to structure design information properly to effectively manage it in the structural design process. This paper discusses modeling concepts for managing design information efficiently and supporting the design process effectively. Type-local instance–global instance object modeling is the conceptual backbone of the model in this study and provides consistent modeling of structural components including not only primitive members such as beams and columns, but also composite elements such as floors, frames, and even whole buildings. This paper also provides core and extended object concepts for classifying structural design information into an overall design and for processing dependent temporary stages in the design. Foundational and application object concepts are introduced for extending the model to various types of structures. An integrated structural design system for buildings is developed based on these modeling concepts, and finally a brief discussion of the application of the object model throughout the entire structural design process in the integrated structural design system is given. It is expected that the modeling concepts proposed in this research can be applied to a range of other engineering applications.