混凝土预制底板钢吊箱水中桥墩承台施工技术

通过上海崇明越江通道长江大桥B1标工程水中墩施工事例,详细叙述了采用混凝土预制底板钢吊箱施工桥梁水中墩承台的设计计算和施工方法。     

三门口跨海大桥南门桥深水基础施工技术

介绍了三门口跨海大桥南门桥深水基础的工程概况，针对工程特点，详细阐述了水下钻孔灌注桩、承台施工的要点和保证工程质量的措施，可供类似工程借鉴。     

Bürohochhaus im Palais Quartier — ein besonderes Bauprojekt in der Innenstadt von Frankfurt/Main

Dieser Beitrag geht auf die Planung und die Bauausführung des Bürohochhauses des “Palais Quartier” in der Innenstadt von Frankfurt am Main ein. Beschrieben werden die Konstruktion und der Bauablauf des 5‐geschossigen Kellerkastens und der Abfangung eines 12 m × 15 m großen Gebäudeteils sowie die Planung, im Speziellen die Verformungsuntersuchung für die Stahlbetonstützen. Office Tower in the Palais Quartier — a special construction project in the city of Frankfurt/Main. This article covers the design and the construction of the office tower of the ”Palais Quartier“ in the city center of Frankfurt am Main. In the following, the structural design and the construction work of the 5 basement levels and the overhanging part of the building with dimensions 12 m × 15 m and 28 levels will be described. Finally, an analysis of the deformation of the columns will be presented.     

Solid solubility extension of copper‐tin immiscible system during mechanical alloying

In this paper, copper‐5 wt.%‐tin (Cu‐5wt%Sn) powder mixture was mechanically alloyed in order to study the solid solubility extension during the alloying process. Nanocrystalline supersaturated solid solution has been prepared in this system by high energy ball milling. Based on the thermodynamic model, the Gibbs free energy change in this alloy system during the formation of solid solution is calculated to be positive, which means that there is no driving force to form solid solution in copper‐tin (Cu?Sn) immiscible system. It has been found that a large fraction of grain boundaries and a high density of dislocations play a significant role in the solid solubility extension of immiscible copper and tin.     

门座起重机交替吊运作业中储缆桶的研制

介绍了门座起重机交替吊运煤炭与集装箱作业新工艺中储缆桶的研制与应用,阐述了集装箱作业模式和煤炭作业模式,给出了储缆桶电缆系统的组成及各部分连接。     

外墙外保温挂贴陶土板的施工方法

传统外墙外保温由于面砖本身的重量、高应力及不透气性以及每层材料之间的相互匹配性等问题,经常出现面层开裂、脱落等质量事故。陶土板为天然陶土通过真空高压挤压成型,高温煅烧而成,其具有自重轻、耐久性能好,颜色日久砺新的特点。     

外平开窗摩擦铰链受力分析

外平开窗摩擦铰链使用已久,但对其受力性能的了解一直是基于经验,缺乏理论阐述。本文利用有限元分析对其受力进行分析并总结规律。     

悬挂挡渣塞在宣钢150t转炉生产中的应用

介绍了宣钢150 t转炉悬挂式挡渣装置的性能、主要参数、工作方式、事故处理,对比了挡渣球出钢挡渣和挡渣塞出钢挡渣的使用效果,最终确定了挡渣塞出钢挡渣工艺。生产实践表明,150 t转炉采用挡渣塞挡渣出钢,可有效控制出钢下渣量,减少钢水回磷,提高了钢水质量和合金收得率,实现了降本增效的目的。