浅谈玻璃采光顶的设计与施工管理

从承重、保温、防水三方面阐述了玻璃采光顶的设计注意事项,探讨了玻璃采光顶的施工质量管理,提出了玻璃采光顶的施工管理措施,以积累玻璃采光顶施工经验,推广玻璃采光顷的应用。     

太仓图博中心玻璃采光顶防水密封设计

以大型公共建筑工程为例介绍了建筑胶在长方形夹板式点式玻璃采光顶、隐框玻璃采光顶及异型点式玻璃采光顶中的设计与应用,强调了所选用的建筑胶与玻璃采光顶性能要求的匹配性,以保证玻璃采光顶的气密性、水密性等各项功能的实现。     

单元滑移式异形玻璃采光顶施工技术

在某游泳馆屋面异形玻璃采光顶工程施工中,针对大跨空间钢结构异形玻璃采光顶采用传统搭设满堂架及固定支座安装效率低、成本高、安全隐患大的施工难题,通过在大跨空间钢结构与异形玻璃采光顶之间增设可调连接装置,并改进施工工艺,从而实现了异形玻璃采光顶单元滑移施工,达到了安全、高效、经济的目的。     

玻璃采光顶质量通病及防范措施

玻璃采光顶,就是用玻璃材料制作的具有采光功能的建筑物顶部。这样的顶部建筑,能够帮助提升建筑的品位以及格调,因此在市场上受到了广大群众的欢迎。同时部分的玻璃采光顶还具有一定的建筑构造要求,在满足人们审美的基础上,提供防震和高采光的效果。除了美观的效果外,作为建筑物的一部分,人们更加关注的是玻璃采光顶的质量。在玻璃采光顶用于实际生活中时,有一些常见的质量通病,这些问题具有一定的普遍性。本文将对玻璃采光顶的质量通病进行阐述,分析其中的原因,提出一些防范措施,来帮助玻璃采光顶在发挥美观效果时,提高其作为建筑物的一部分应该发挥的作用。     

玻璃采光顶结构体系的研究现状与展望

玻璃采光顶结构是一种新型的空间结构体系,由于自身的结构特点,使得玻璃采光顶结构与其它结构体系相比,有着自己独特的分析和设计方法,为此,就玻璃采光顶结构在国内外的最新发展和应用加以简要介绍,并对玻璃采光顶结构的支承体系进行了总结,对今后的研究方向做出了展望.     

玻璃采光顶的性能要求和结构设计要点

本文对玻璃采光顶的基本性能要求和结构设计作了概述,文中所列表中参数和其它参数可供设计玻璃采光顶时参考。对于在建设中采用的玻璃采光顶,由于其形式和用途日益增多,对其认识也逐渐深入,有的问题需要进一步研究。     

真空玻璃应用于采光顶的结构及力学性能研究

玻璃采光顶成为一种重要的建筑形式。通过采光顶试验,对真空+夹胶三片结构和中空+真空+夹胶四片结构的温度及应力进行测量,同时对三片结构进行了踩踏和冰雹试验,以试验采光顶玻璃的力学性能。针对真空玻璃采光顶在夏季炎热天气下所面临的玻璃表面温度过高,应力过大的问题,给出在产品结构方面的建议。     

玻璃采光顶防水技术浅析

漏水是采光顶使用中最常见的弊病之一,本文从玻璃采光顶的基本特点和分类出发,分析了采光顶表面积水产生的原因及带来的隐患,着重阐述了采光顶防水的措施要点,同时介绍了采光顶发生渗漏后排查漏点的方法。     

采光中庭织物型遮阳改造对室内热环境的影响分析——以山东某高校图书馆为例

玻璃采光顶中庭被广泛应用于高校图书馆设计中.设计师追求通透的空间效果使采光顶玻璃面积越来越大.合理设计玻璃采光顶遮阳设施对提升室内环境舒适度有重要意义.以寒冷地区山东省某高校图书馆的采光顶中庭为研究对象,通过实地测试和现场调研分析中庭室内热环境存在的问题,并建立分析模型,基于DesignBuilder和Ecotect软...     

玻璃采光顶破坏形式及加强措施分析

玻璃采光顶兼有围护、采光和装饰功能,广泛应用于城市公共建筑。通过对玻璃采光顶的破坏形式和安全影响因素进行系统分析,从结构、构造、选材、施工、围护等方面总结玻璃采光顶安全设计要素和针对性的安全加强措施,强调了及时消除安全隐患的重要性。     

The use of DOE-2 to determine the relative energy performance of daylighted retail stores covered with tension supported fabric roofs

With increasing interest amongst the architectural and engineering community in daylighted buildings, there is a need to evaluate the relative energy performance of those buildings. One means of daylighting a building is to use a coated glass fiber fabric roof. With such a roof, it has been found that sufficient daylight is admitted to allow most artificial lighting to be turned off during the daytime hours. However, solar cooling loads and conductive loads may be greater than for conventionally roofed commercial buildings. With the fabric roofed buildings capable of using considerably less energy for artificial lighting, yet possibly requiring greater use of energy for space heating and cooling, the relative energy performance is a matter of trade-offs.To determine this relative energy performance of fabric roofed and conventionally roofed retail stores, a modified version of DOE-2.1A was used with weather data from 19 cities located within the United States. In the analyses, both single-layer and double-layer roofs were studied as were stores with different levels of electric power for artificial lighting. In general, the results suggest that a fabric roofed store will use less total energy than a conventional roofed store in a geographic area with a mild climate but that it will use more energy in a cold climate area.     

Impact of electric lighting efficiency on the energy saving potential of daylighting from roof monitors

A developmental version of the building energy analysis computer program BLAST was used to perform simulations of a prototypical, single-story office building. Total annual energy consumption was computed using Typical Meteorological Year (TMY) [1] weather data from three locations in the United States. For each location, two electric lighting designs were tested on the baseline building (no roof monitors) to compare the energy requirements of current-practice and more efficient electric lighting designs. Then roof monitors were added to evaluate their energy saving potential for each of the electric lighting designs. The roof monitors had highly diffusing, vertical glazings facing southeast and southwest.The results show that improving electric lighting system efficiency and adding roof monitors for daylighting both have the potential for substantially reducing lighting electricity and the energy cost of operating the building. The potential benefits of daylighting are substantially lower for a building outfitted with a more efficient electric lighting system, although still significant. To determine the limits of validity of the simulations, a number of sensitives studies were performed. Among the issues investigated were: dirt deposits, snow accumulation, glazing optical properties, interior design, luminous efficacy of admitted sunlight, and thermostatic controls.     

Daylighting design for the Pacific Museum of flight: Energy impacts

The daylighting performance of the Pacific Museum of Flight in Seathle, WA, has been analyzed using the DOE-2.1C building energy simulation program. The main exhibit areas of this museum are enclosed on three sides by glass walls and the 4500-m² roof is completely glazed. Because of the large glass areas, a detailed thermal simulation of the building was carried out during its design phase in order to select glazing parameters that would avoid excessive summer solar heat gain, reduce winter heat loss and, at the same time, provide enough natural light of significantly reduce electric lighting loads. Glazing choices considered included conventional glass, heat mirror, and glass with a low-emissivity coating. On/off, stepped and continuous dimming lighting control systems were analyzed. Daylighting was found to be very effective in reducing annual electric lighting load, peak electrical demand, and the overall annual energy consumption.     

建筑屋顶的节能设计

从屋顶采光、屋顶通风、表皮屋顶和屋顶环境设计、屋顶保温隔热等方面对建筑屋顶的节能设计进行了探讨以充分利用自然气候资源，削弱外界气候对室内热舒适环境的不利影响。     

北京某商业步行街采光顶光热性能分析

为了对商业广场风雨步行街采光顶的光热性能进行整体评价,提出兼顾舒适、经济、节能三者的优化设计方案,现以北京某商业广场风雨步行街为实例,运用模拟计算软件对其步行街采光顶在无遮阳、采用内遮阳(实际采用的遮阳方式)、采用外遮阳这3种情况下分别进行模拟计算,分析其3种情况下步行街室内的采光效果、透入太阳辐射热程度,最后提出优化建议。     

电加温玻璃的电学性能设计

电加温玻璃通常用于对透明窗口除霜、除雾,该文讨论了电加温玻璃的电学性能设计。对于矩形或接近矩形的加热区域,用透明导电薄膜加热可获得均匀的加热效果,对于非矩形的加热区域,通常会在玻璃表面产生不均匀加热,将会在玻璃表面出现冷区和热区,可通过分区并联的方法解决此问题,即应尽量增大每个加温区的电极间长度与加温区宽度的比值,以获得均匀的加热。     

从奥运场馆看建筑技术对其自然采光的影响

结合奥运场馆,分析了大空间体育建筑自然采光的特点及其必要性,详细介绍了奥运场馆在自然采光方面的探索,包括屋盖侧向采光、屋盖中心采光、活动屋盖采光、建筑整体采光等,从而唤起人们对自然采光的利用和重视。     

The predicted impact of roof aperture design on the energy performance of office buildings

An investigation has been made of potential lighting electricity reductions and associated thermal impacts of replacing electric light with sunlight admitted through rooftop glazing on a single-story, prototypical office building. Experimental scale models have been used to determine the fraction of the solar radiation entering the aperture which reaches the work plane as useful illumination. This information is used in a developmental version of the building energy analysis computer program BLAST-3.0 to predict reductions in lighting electricity and the impacts on energy consumption for heating and cooling the building. The results indicate that a large fraction of the electricity consumed for lighting a single-story office building can be displaced using modest amounts of glazing in the roof. Also, both heating and cooling energy consumption reductions are possible from a daylighting system, but they are substantially smaller than the potential lighting electricity reductions. The design implications of the results are discussed and future directions for the work are outlined.     

基于规范对比的女儿墙屋面雪荷载实测分析

在女儿墙屋面雪荷载计算时，日本、美国及欧洲规范中充分考虑了风场对完全暴露屋面雪荷载的侵蚀作用、风力对积雪的搬运作用、上游积雪宽度对下游阻碍物处堆雪量的补充作用和降雪量对堆雪的补充作用。除此之外，也引入了室内采暖、雨雪联合等因素来更真实地实现对屋面雪荷载的估算。相较之下，我国规范仅考虑女儿墙高度的影响。故基于对带女儿墙屋面积雪分布的多年实测结果，参考国外规范中的影响因素，对哈尔滨地区女儿墙屋面积雪分布特征进行了分析。结果显示：风场作用下，积雪会更多地堆积于迎风向女儿墙处；随着上游屋面宽度增加，下游迎风向女儿墙处漂移积雪的峰值深度存在递增趋势，且随着风速增加，搬移堆积作用会增强；上游屋面宽度和地面降雪量对女儿墙处峰值雪深有较大影响，风速对于峰值雪深的影响依赖于地面降雪量，降雪越大，风速的影响越大，反之减小；女儿墙处堆雪长度与女儿墙高度比值多维持在3.75左右，建议我国规范中堆雪长度与女儿墙高度比值取4.0。     

某工程玻璃采光顶结构分析

在讨论各种玻璃采光顶支承结构的基础上,首先对由桁架和系杆组成的玻璃采光顶支承结构在各种荷载工况下的结构进行分析,具体分析结构的内力、挠度以及材料的使用效率,并讨论此类结构构件截面的选用;其次,考虑玻璃与支承结构的共同工作,对结构进行整体的分析和比较;最后利用规范公式以及考虑几何非线性的有限元分析两种方法,对带孔采光顶玻璃进行应力和挠度计算,并分析孔边距对于玻璃应力分布的影响,可为结构设计提供依据。