High strain rate effects on post-installed mechanical anchors

高应变率对安装后机械锚栓的影响

基本信息

批准号：
514597-2017
负责人：
Braimah, Abass
金额：
$ 1.82万
依托单位：
Carleton University
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2017
资助国家：
加拿大
起止时间：
2017-01-01 至 2018-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639829
关键词：
strain rate effects post installed

项目摘要

The increase in global terrorism in the past several decades has resulted in the retrofit of window glass toincrease its blast resistance. Most windows in high profile buildings are often retrofitted with anti-shatter filmto mitigate injuries and fatalities due to glass shards. When the anti-shatter film is, however, anchored towindow frames, blast loading is transferred to the window frames and ultimately to the structure of the façade.Conventional windows often lack adequate strength to resist the imposed blast loading, resulting indislodgement of retrofitted windows accompanied by their projection into the interior of buildings with a highcapacity to cause injury and fatality. Post-installed anchors are recommended for upgrading anchorage ofwindow frames to the structure of the façade. However, limited information is available for design of anchorssubjected high strain rates such as blast and impact loading.The proposed project will test post-installed mechanical anchors subjected to high strain rate loading generatedin a drop-mass test frame as a first step to understanding behaviour of post-installed mechanical anchors underblast loading. The results from the tests will provide much needed information for the design of blast resistantwindow systems. Information that will also assist Federal Government departments such as Global AffairsCanada and Public Works and Government Services of Canada to design blast resistant structures in Canadaand abroad. This is particularly important for the safety and security of Canadian Embassies abroad and highprofile government buildings in Canada requiring blast protective design.

在过去的几十年中，全球恐怖主义的增加导致了窗玻璃的改造，以增加其爆炸性。备受瞩目的建筑物中的大多数窗户通常都经过反击膜的改装，以减轻因玻璃碎片而导致的伤害。然而，当反震动的电影是锚定的拖尾框架时，爆炸载荷被转移到窗框上，并最终转移到立面的结构上。规定的窗户通常缺乏足够的强度来抵抗强加的爆炸装载，从而导致窗户的不投射窗口会导致其对高高和伤害性的内部造成的建筑物的投射，从而实现了改造的窗户。建议使用后安装的锚将窗框的固定升级到立面的结构。但是，有限的信息可用于设计锚定的高应变率（例如爆炸和冲击负荷）。拟议的项目将测试在滴水质量测试框架中产生的高应变率负载后安装后的机械锚固，这是理解负载下载后机械锚定后机械锚的行为的第一步。测试的结果将为抗爆炸窗口系统的设计提供急需的信息。还将有助于联邦政府部门（例如全球事务加拿大人，公共工程和加拿大政府服务）在国外设计抗强化结构的信息。这对于加拿大大使馆在国外的安全和保障尤其重要，加拿大需要受到爆炸保护的设计。