What is truss tube?

What is truss tube?

The trussed tube with interior columns, which can also be executed in both steel and concrete, introduces diagonal bracing on all sides of the building’s perimeter. The bracing also carries gravity loads and further raises the lateral rigidity, making this a low-premium structure for the region…

How do truss telescopes work?

When flexing, the “top” truss resists tension and the “bottom” truss resists compression. This has the effect of keeping the optical elements parallel to each other. The net result is all of the optical elements stay in collimation regardless of the orientation of the telescope.

What is the trussed tube structure?

The trussed tube, also termed braced tube, is similar to the simple tube but with comparatively fewer and farther-spaced exterior columns. Steel bracings or concrete shear walls are introduced along the exterior walls to compensate for the fewer columns by tying them together.

What is bundle tube?

Definition of ‘tube bundle’ A tube bundle is a set of tubes in a shell-and-tube heat exchanger. A set of tubes is called the tube bundle and can be made up of several types of tubes. In a shell-and tube-exchanger the tube bundle is enclosed in a cylindrical shell, through which the second fluid flows.

Are Dobsonian telescopes good for viewing planets?

The Dobsonian design is a pure reflector and there are no issues with color fringing. As a good telescope for viewing planets, low cost Dobsonian telescopes will give great views of the planets in our Solar System, as well as star clusters, nebula, and deep sky objects.

How does a Ritchey Chretien telescope work?

RC telescopes use hyperbolic mirrors to eliminate optical errors like coma and chromatic aberrations off-axis while producing the flattest focal plane possible without lenses.

What is the truss span?

The span of a truss is only the length of the bottom chord. Any overhang by the top chord beyond the bottom is not considered part of a truss’ span.

What is braced tube structure?

The braced tube, developed in the late twentieth century for tall buildings, is a very efficient structural system because it carries lateral loads primarily by axial actions of the perimeter columns and bracings, and still prevalently used for contemporary tall buildings.