查询词典 span roof

Coal lane sheet crack hierarchical structure of the roof span stability analysis.

煤巷板裂结构顶板分层稳定跨距分析。

But that's not all -- green roofs are a great way to handle water management in urban areas with overwhelmed sewerage systems (green roofs soak up excess precipitation), provide sanctuaries for urban wildlife, and actually extend the life span of the roof itself.

但还远不止这些优点——绿色屋顶以其强大的排水系统，能有效管理城市排水问题（绿色屋顶吸收大量突然降水）。绿色屋顶为城市种的野生动物提供避难所，同时也延长了屋顶绿化本身的寿命。

The structure design process of Macao Dome is introduced, and important analysis results and technical measures are presented. Key problems such as deep foundation in earth fill seashore, extra long prestressed concrete flat slab on the ground floor, large span ellipsoidal steel roof structure and its overall stability are discussed emphatically.

介绍了该项目的结构设计情况和主要的结构分析结果和重要的技术措施，着重讨论了填海地区的深基础、首层超长预应力钢筋混凝土大板、超大跨度椭球面钢屋盖体系及其整体稳定等结构设计中的关键技术。

Comparisons between the results from the wind tunnel tests, numerical simulations and the field tests were performed to verify the accuracy of the CFD method. Then the advanced k-ε turbulence model was used to compute the mean pressures on a long span curve shaped roof with the front door open or not open.

在核实了数值模拟精度的基础上，运用改进的k-ε湍流模型对某曲面大跨网壳在大门开启和大门关闭两种不同工况下内、外表面的平均风压进行数值模拟研究，并考察了来流风向角和背景建筑对其风压分布的影响。

The application of the prior three-dimensional composite shock-proof bearing into the large span mesh roof structure has the following problems:(1) the level shock-proof bearing is series-connected with the vertical shock-proof device, the height of the bearing is large, so it is lack of stability ;(2) the horizontal displacement of the structure under earthquake is large,(3) it is lack of vertical pulling-proof ability, the bearing rotational capacity is insufficient.

现有的三维复合隔震支座要将其应用于大跨网格屋盖结构存在以下问题：(1)水平隔震支座与竖向隔震装置串连，支座的高度大，缺乏稳定性；(2)在地震作用下结构的水平位移较大；(3)缺乏竖向抗拔能力，支座转动能力不足。

The influence of parameters such as high order mode shapes,horizontal and vertical power spectrum density,basic wind pressure, span and weight of the roof,damping ratio,terrain categories and support restraints, which are usually critical to the wind-induced vibration responses,are discussed.

尽管这些大跨屋盖结构的形式不尽相同，但它们都具有一些共同特点，即质量轻、柔度大、固有频率低、阻尼小等特点，它们都属于风敏感结构，因而风荷载就成为设计这些屋盖结构的主要控制荷载之一。

Furthermore,the influence of parameters such as the horizontal power spectrum density, basic wind pressure,span and weight of the roof,damping ratio,terrain categories and support restraints,which are usually critical to the wind vibration factor,are also discussed.

本文基于随机振动理论利用有限元程序ANSYS对大跨度实腹式钢梁在频域内进行了风振分析，讨论了高阶振型、脉动风速谱、基本风压、屋盖重量、地貌种别、阻尼比和支座约束等相关参数对屋盖结构风振响应和风振系数的影响。

The company occupies 35,000 square meters, the assets of 12 million yuan, plant area of 8000 square meters, 1000 square meters of office space, five million yuan to introduce advanced equipment, the existing cadres, employees 180 people, the company is a steel structure building design, scientific research construction in one of the high-tech enterprises, with a group of experienced senior and intermediate-level technical management talents, learn from the United States color plate arched roof technical standards, research and development of a set of complete and reliable theoretical basis for the high-level, high-speed construction span, non-support of the construction provides a new concept.

公司占地35000平方米，资产1200万元，厂房面积8000平方米，办公用房1000平方米，引进先进设备500万元，现有干部、职工180人，公司是一家集钢结构建材设计、科研、施工于一体的高新技术企业，拥有一批经验丰富的高、中级技术管理人才，借鉴美国彩板拱形屋面技术标准，研究开发了全套完整可靠的理论依据，为高水平、高速度建造跨度、无支撑建筑提供了一个全新概念。

The effects of shading and roof sprinkling based on natural ventilation were experimentally studied in a Venlo type multi span greenhouse.

该文对荷兰 Venlo型连栋温室夏季采用自然通风并结合遮阳网、室外屋顶喷淋的降温效果进行了实验研究。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。