建筑产品世界中,工程师、承包商或其他行业方面总是讨论不同产品的强度问题。对许多人来说,不偏向负载的产品最强。当我们被要求列强建构元素时,我们想到加固混凝土墙或重钢梁
工人用掩埋结构可能表示混凝土墙和钢梁能增加掩埋结构的大量僵硬性,但不一定令掩埋结构最强
从工程师的角度来看,僵硬性定义为产品阻抗偏转能力。毫无疑问,厚墙矩形盒有很多僵硬性。你可以直接停靠卡车顶部,它不会显示负载的视觉效果。对比之下,如果你取比薄墙状钢管同尺寸并停靠卡车顶部,你就会扭曲并破坏管道。它没有混凝土盒结构的僵硬性近似不及混凝土盒结构
但是,如果你用紧凑结构填充并比较土壤覆盖量,你可以对每个结构下沉,你可能会发现掩埋的浮带金属管比矩形水泥库能带更多土覆盖量。通过这个尺度,压带金属管比混凝土库强
弹性结构与硬盒结构相比表面强度源出二大源:几何学能力
几何学方面,人们完全理解大桥结构提供非常有效工具载大统一负载。这是因为大桥将重置大部份转换成压缩负载,这些负载贯穿大桥墙,而不是波束必须弯曲负载。压缩负载允许全深度结构墙连接。波束背负负负波主要连接波束外边缘,使波束中心大都未得到利用。
The other source of strength for the corrugated pipe is that it engages the strength and stiffness of the backfill around it. It was mentioned earlier that an unsupported corrugated steel pipe may be damaged by a vehicular load if it were parked directly on top of it. However, by burying the pipe with a competent backfill, when the same vehicular load is placed over the pipe it deforms slightly – thereby engaging the stiffness available from the backfill material around it. The combined stiffness of the metal pipe and backfill material is enough to support the load while utilizing a smaller, more efficient wall profile. That's the basis behind all buried flexible structures, whether they are 6" diameter round pipes or 60' span buried arches.
At Contech, we design our products to perform for the specific applications in which they are intended to be used. Some of the applications in which our products are used require a lot of stiffness in order to carry loads and perform properly. Conversely, where efficiencies are available by utilizing the strength of the backfill support around a structure, our products take full advantage of that as well. By offering a wide variety of engineered solutions – from reinforced concrete and tubular steel sections to corrugated metal, PVC or reinforced polyethylene pipes – Contech can always offer our customers a variety of cost effective solutions to meet their project needs.