在美国.S., 2021年国际建筑规范(IBC)包括三种新的建筑类型- 四、型, ivb和iv - c,允许在建筑物中使用大量木材或不燃材料,最高可达18, 12 and nine stories (respectively). 这些建筑类型是基于以前的重型木结构类型(IV型), 在2021年IBC中改为IV-HT),但对耐火等级和不燃保护的使用有额外的要求.
根据2018年或更早版本的规范设计的大型木材项目通常受到5至6层的规定建筑高度限制的限制,具体取决于占用组. “高木材”一词与超过先前楼层数规范限制的建筑物有关, height and in some cases area.
If you’re interested in pursuing a tall timber project in the U.S., see below for commonly asked questions and resources. WoodWorks还为开发人员和设计/施工团队提供免费的技术支持. 如需帮助,请联系 WoodWorks区域总监 本地或电子邮件 help@scyhoa.com.
Notable Tall Timber Buildings
参观 WoodWorks Information Network for a searchable map of mass timber projects in the U.S. (and elsew在这里), and to learn about their project teams. 这是一个 链接到地图 filtered for projects that are seven stories and higher.
值得注意的项目超越了IBC以前版本的规定限制,包括:
建成的或在建的:
1510年韦伯斯特 – Oakland, CA – 19 stories, 16 of which are mass timber.
Carbon12 – Portland, OR – Eight stories of mass timber.
介绍 – Cleveland, OH – Eight stories of mass timber over a concrete podium.
6. 我听说2024年IBC将允许ivb类型的木材天花板100%暴露, 高达12层楼. Is that code language finalized?
是的, the 2024 IBC will include new code changes, which have been approved and will be incorporated, 允许ivb类建筑的木材天花板暴露率高达100%. The new code language as it will read in the 2024 IBC is available 在这里. Several jurisdictions such as the City of Denver, 达拉斯市, 俄勒冈州和华盛顿州已经在将这些新的木材暴露限制纳入其建筑规范的过程中, 一些设计团队正在寻求在与当地建筑官员的具体项目讨论中利用新的限制. Reach out to your local WoodWorks 区域主任 to see how projects in your area can approach these design topics.
技术设计指南 from WoodWorks
解决方案文件
Tall Wood Buildings in the 2021 IBC – Up to 18 Stories of Mass Timber
Inventory of Acoustically-Tested Mass Timber Assemblies
Find an acoustically-tested assembly that’s right for your project. Browse assemblies tested in the U.S., including STC and ICC ratings and test reports.
配备工程师, architects and construction experts, 我们帮助项目团队确定并成功实现最适合其项目的木材解决方案. Watch this short video to learn more and contact us for free project support.