element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Members
    Members
    • Benefits of Membership
    • Achievement Levels
    • Members Area
    • Personal Blogs
    • Feedback and Support
    • What's New on element14
  • Learn
    Learn
    • Learning Center
    • eBooks
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • Experts & Guidance
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Dev Tools
    • Manufacturers
    • Raspberry Pi
    • RoadTests & Reviews
    • Avnet Boards Community
    • Product Groups
  • Store
    Store
    • Visit Your Store
    • 'Choose another store...'
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
Wireless
  • Technologies
  • More
Wireless
Documents 通信角钢塔抖振响应分析
  • Blog
  • Forum
  • Documents
  • Events
  • Polls
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Wireless requires membership for participation - click to join
Actions
  • Share
  • More
  • Cancel
Engagement
  • Author Author: sophie0love
  • Date Created: 14 Nov 2010 5:57 AM Date Created
  • Last Updated Last Updated: 9 Nov 2021 4:47 PM
  • Views 172 views
  • Likes 0 likes
  • Comments 0 comments
Related
Recommended

通信角钢塔抖振响应分析

高耸结构由于高度较高,刚度较柔,在风荷载作用下容易产生较大的振动,对风荷载的作用比较敏感,高耸结构的风振响应随着结构高度的增加变得越来越剧烈,而且无论是结构还是风荷载都存在大量的不确定性,因而结构的抗风分析变得尤为重要。 本文针对作用于通信角钢塔的风荷载特点,将风荷载中脉动风视为平稳的高斯随机过程。从随机理论出发,考虑空间相关性,采用谐波合成法用Matlab语言模拟出脉动风荷载的时程曲线,实现了脉动风荷载的计算机仿真。所采用的人工模拟风速时程曲线的·理论及程序可应用于一般高耸结构的脉动风荷载模拟,符合风速随机过程的一般统计特征且具有很好的随机性。与实际风荷载记录相比,人造脉动风可以按照当地的气候条件、频谱特性及建筑物的特点等条件任意产生,并且可以考虑脉动风的空间相关性,因而更适合作为结构风振时域分析的输入。本文以通信角钢塔为工程背景,建立精确的有限元模型,采用ANSYS的瞬态动力学分析模块计算了通信角钢塔结构的动力特性和风振响应,并根据计算结果研究了通信角钢塔结构风振系数的取值。 从本文的风振系数对照图可以看出,根据《高耸结构设计规范》与《建筑结构荷载规范》计算得到的风振系数比较接近,但是在平台位置规范都却不能够体现由于平台的存在而引起的风振系数的增大;从时域分析得到的风振系数可以发现,在通信塔平台以下风振系数的变化是比较均匀的,取值都不大,但是在平台位置却存在很明显的突变,体现了通信角钢塔平台集中质量的影响;从风振系数的对比还可以看到时域分析所得到的结果均小于根据规范计算得到的风振系数,所以从本文的算例可以认为规范的取值是偏于保守的。

Attachments:
image通信角钢塔抖振响应分析.pdf
  • Design Resources
  • Share
  • History
  • More
  • Cancel
  • Sign in to reply
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2023 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube