云南省第二安装工程公司

云南省第二安装工程公司是云南安装工程事业的开拓者和领先者。是专业从事工业生产装置安装工程和机电安装工程的公司。公司在机电安装工程、化工安装工程、冶炼安装工程、建材安装工程等领域有骄人的施工业绩。在这些领域的安装施工水平居云南省的领先水平。经过近五十年几代安装人管理、技术的积累,     

测量地运动加速度传感器安装方法探索

为探索地表加速度测量时传感器的安装方法,利用TNT爆炸试验模拟震源,采用角铁安装件、混凝土立方体安装件和铝合金板安装件,按三维方向安装加速度传感器进行了试验.试验结果表明:3种安装方式测试的加速度波形一致；安装传感器时,需在安装件对称方向上安装传感器配重块,保证安装件平衡运动,否则会造成测试波形失真.     

刍议建筑电气安装中的质量控制与监理

建筑电气安装是建筑工程施工的一部分,在进行建筑电气工程安装施工中,电气工程安装的质量是整个建筑电气安装的关键,现实中很多建筑电气安装中安全事故发生,都与建筑电气安装质量有一定的作用关系.因此,在进行电气安装中要注意对安装质量的控制,以保障电气安装工程施工运行和建筑电气工程的应用.     

机电工程安装施工技术的要点

文章概述了机电工程安装施工,包括工程范围覆盖较广、施工要求高;说明了机电工程安装施工技术的要点,包括设备部件和组件安装技术、消防系统安装技术、空调通风系统安装技术、低压配电箱安装技术、变压器安装技术.     

中央空调安装工程技术探讨

中央空调在高层建筑以及家庭中的日益广泛应用,鉴于其具有较强的应用性,探讨中央空调的安装技术具有一定的重要性.本文紧密结合某建筑的中央空调安装工程,探讨安装中央空调的安装方法,同时提出在中央空调安装过程中应注意的安装技术以及质量控制要点,工程实践证明,本文所采取的安装技术可有效确保工程安装质量,可为中央空调的安装提供一定参考.     

建筑机电设备安装质量通病及控制对策

在建筑工程的施工中,建筑机电设备的安装是其中的重要环节,尤其是建筑机电设备在安装的过程中由于安装环节较为复杂,在安装的过程中如果不对其安装进行管控,容易出现安装质量问题这时通过对建筑机电设备安装质量通病以及建筑机电设备安装质量通病控制对策等方面进行简要的分析和研究,从而对建筑机电设备安装进行管控,保障建筑机电设备的安装质量。     

PS0816破碎机设备安装

针对破碎机设备安装过程中设备量超载、超高,无法直接采用行车安装的情况,采用了设备整体移位安装,设计专用安装工装,确保了设备安装精度并一次安装到位。     

电梯安装工艺的变迁

现在电梯行业给用户的随机文件中,包含：装箱单、电梯安装说明、电梯维护保养说明与线路图册。安装说明是通用文件,并不能代表每种梯型的安装工艺。因为人们对安装工艺缺乏正确的认识,厂家没有给出真正的安装工艺,为此给现场安装带来很多弹性,往往安装人员根据经验安装电梯,最终影响产品质量与成本。下面就电梯安装工艺做一些商讨。     

电力变压器的安装调试技术

变压器的安装关系着电力系统运行的安全和稳定,随着电力工业的发展,变压器安装技术得到改进完善,安装技术也逐渐成熟。严格按照安装规范操作,严格管控安装质量,保障变压器有序安装,保证电力系统安全稳定运行。     

装配式建筑ALC板机械安装技术研究

ALC轻质隔墙板使用专业安装机械进行安装,适用于住宅工程、高空间的厂房、商场、办公等建设项目,本文阐述了智能安装机械的安装工艺,介绍了安装机械的构造组成,说明了ALC板机械安装的安全性、可操作性,总结了机械安装的优势,具有可推广意义。     

浅议由传统建筑观引发的中西宗教建筑差异

指出中西方传统建筑观有着本质的不同,从而导致中西方宗教建筑在造型、审美、尺度等方面有明显的区别,通过从中西方对建筑的物质性与精神性的不同认识出发,分析了由此引发的中西方宗教建筑的差异。     

玻璃钢锚杆托盘及螺母极限应力和位移分析

为了研究支护用锚杆在极限应力作用下力学特性,建立了锚杆托盘及螺母的有限元模型,采用ANSYS程序对螺母及托盘的应力、位移进行了数值仿真分析。研究了托盘及螺母在极限应力下的接触特征;绘制了托盘及螺母的应力云图,得到了托盘及螺母内部的应力、位移分布情况。结果表明,托盘边缘及托盘内部大小圆盘连接位置较为危险;螺母中间位置由于受托盘的挤压容易发生破坏;加肋可以提高锚杆的极限承载力,为结构的优化提供借鉴。     

堆土加卸载与基坑开挖叠加对既有隧道变形的影响研究

针对堆土加卸载与基坑开挖叠加效应导致既有地铁隧道变形较大的问题,建立考虑加卸载叠加效应影响的三维空间分析模型,研究不同堆土加卸载叠加基坑开挖卸载模式对邻近地铁隧道变形规律的影响,探讨隧道在堆土加载、移土卸载再叠加基坑开挖下的变形规律。结果表明:正上方堆土加卸载对隧道的竖向位移影响较大,是侧向堆土加卸载的3倍～5倍; 在经历堆土加卸载后,隧道会残留不可忽视的变形,其残留竖向位移约为加载后位移的62%; 堆土加卸载叠加侧方基坑开挖时,隧道变形受基坑开挖深度的影响较大,大于隧道埋深的开挖阶段会加剧隧道变形; 4种叠加模式中,正上方堆土加卸载-侧方基坑开挖卸载隧道最终竖向位移最大,约17 mm,侧方堆土加卸载-异侧基坑开挖卸载隧道最终水平位移最大,约8 mm,邻近隧道施工时应充分考虑叠加效应的影响,尽量避免这两种情况。     

Environmental affordances and children’s needs: Insights from child-friendly community streets in China

With rapid urbanization in China, an increasing building density has squeezed the urban public space. Community streets are occupied by motor vehicles or other functions, and can no longer sufficiently support children to carry out safe and independent activities. As an important space for children’s daily natural contact and social activities, the lack of the spatial function of streets results in a decline in children’s subjective initiative and social abilities. The United Nations has stressed the importance of community as the basic unit of space for children’s daily activities in building child friendly cities. It is urgent to reshape child-friendly community streets and support children’s healthy growth. Integrating previous research results on affordance theory and design, children’s growth and environment, and street-game spaces, this study focuses on investigating 23 community streets in four residential communities in Nanjing through questionnaires, interviews, observations, and other methods. Then, from the perspective of cognitive affordance, functional affordance, and social affordance, it analyzes the behavioral possibilities provided by the environment and the needs of the children-user group. Finally, from the perspectives of openness and security, preference and diversity, positive and negative, and reality and potential, it proposes a method to assess the existing environment. This study aims to extract the significant characteristics of the built environment that effectively support and promote children’s outdoors activities, and explore the design strategy of improving street space sharing through optimizing space elements and structure at the medium and micro levels, so as to respond to multiple goals including livable city development from the perspective of child friendliness. This study also tries to change the logical way of design thinking and provide an eco-psychological perspective on how to build a child-friendly community.     

故宫古建筑石勾栏的安装工艺技术

本文以石勾栏为研究对象,阐明了石勾栏的构成与榫卯连接特点,对石勾栏的地栿、望柱、栏板安装工艺做法进行论述,并对石勾栏安装中的灌浆、砌筑以及勾缝所用材料和工艺做法做了调查分析。     

Magnetoelastische Spannkraftmessung in Bauwerken

Magnetoelastic Measurement of Prestressing Force in Civil Structures The knowledge of the tensile force of prestressing steel elements and its reliable and non‐destructive determination are of essential importance for the assessment of the structural health condition of prestressed concrete structures and tie‐back systems in terms of structural safety, serviceability and durability. For the evaluation of the prestressing force in steel tension members, the measurement technique presented in this contribution is using the magneto‐elastic effect (ME‐effect) of ferromagnetic materials. This effect describes the reverse‐proportional correlation between the mechanical stress and the magnetic properties of ferromagnetic materials. The cylindrical coiled sensors pushed over the tendon and the measuring device developed and practically optimized at the iBMB/MPA of the TU Braunschweig enable a fast and reliable measurement of the prestressing steel force after an initial calibration. In this contribution first the state of the art of prestress measurement techniques for steel tension members is presented. Afterwards, the ME‐measuring method with the basics and merits of magneto‐elastic prestressing force identification is shown. Further recent research results as well as several building applications will be discussed.     

Abbeystead Outfall Works: Background to Repairs and Modifications – and Lessons Learned

The explosion at the Abbeystead valve house in May 1984, with its attendant loss of life and injury, forcibly drew the attention of the public to the dangers of methane and other natural gases. It also reaffirmed to the water industry and engineering professions the pervasive nature of the gas and the need to take appropriate measures in the construction, design and operation of any scheme which involves a possible methane presence. The investigations into the source and mechanism of the methane gas ingress, and the design of the permanent repairs and modifications to the scheme, have illustrated many of the risks and problems associated with methane and the measures for dealing with them.
The paper describes the essential repairs and modifications which had to be carried out, the main lessons learned, and the recommendations which are felt to be applicable to new and existing water schemes where methane may be present.     

案例分析在建筑设计教学中的运用

案例分析与解读是模仿在设计教学中的应用和深化。就案例分析与解读的作用、本质以及在设计教学中的应用进行了论述,旨在探讨案例分析在教学运用中的合理模式和正确途径。     

基于点云的钢筋数量和间距自动检查算法

为改进钢筋骨架质量自动检查方法,提出了基于点云的钢筋骨架中钢筋数量和钢筋间距的自动检查算法。该算法在获取钢筋骨架实际点云和设计点云的基础上,首先对这两片点云分别进行降采样,以得到空间密集程度相同的钢筋骨架实际点云和设计点云; 其次,对降采样后的钢筋骨架实际点云和设计点云使用基于主成分分析(PCA)的方法进行粗配准。由于粗配准后的钢筋骨架实际点云和设计点云的配准精度较低,无法直接用于钢筋数量和钢筋间距的检查,对粗配准后的钢筋骨架实际点云和设计点云进行精配准。最后,基于精配准得到的钢筋骨架实际点云和设计点云,依次对钢筋骨架中的钢筋数量和钢筋间距进行检查。结果表明:精配准后的钢筋骨架实际点云和设计点云的配准精度较高,可以用于钢筋数量和钢筋间距的检查; 该算法对钢筋数量检查的准确率为100%,对钢筋间距检查的准确率为80%; 应用该算法可以有效提高复杂钢筋骨架中钢筋数量和钢筋间距检查的效率,降低人工成本。     

Eutrophication: Assessment, Research and Management with Special Reference to Scotland's Freshwaters

In response to the extraordinarily high profile currently maintained by algae, this paper discusses aspects of pure and applied research on eutrophication. In addition to restating a number of issues which were raised decades ago when the importance of this environmental problem was first recognized, the following aspects are explored using data collected mainly over the last 20 years and referring primarily to Scottish studies: (i) algal-nutrient relations and the contrasting manner in which nitrogen and phosphorus enter freshwaters and are sequestered by planktonic organisms; (ii) estimates of the loadings of phosphorus to freshwaters from various sources; (iii) the effects on our perception of algal problems and the use to which the waters are intended; (iv) the extent and limitations of existing scientific knowledge about eutrophication, and its application to the formulation and execution of eutrophication control strategies; and (v) the arguments for maintaining in-depth limnological surveillance programmes.