A Stability Detection Method of Adjustable Independent Steel Support
A detection method and steel support technology, applied in the testing of mechanical components, the testing of machine/structural components, measuring devices, etc., can solve the problems of difficulty in finding, difficult to apply, and cumbersome for stability detection methods.
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Embodiment 1
[0043] Such as Picture 1-1 , Figure 1-2 , Figure 1-3 , diagram 2-1 , Figure 2-2 As shown, a stability detection method of a single-stage variable stiffness axial compression rod with adjustable two-end hinges includes the following steps: taking an adjustable single-stage variable stiffness axial compression rod, the upper , The lower tube is connected by a pin; the outer diameter D of the upper tube of the steel support is measured S , tube wall thickness t S , variable height H S , Upper tube hole spacing@, hole diameter d; Lower tube outer diameter D X , tube wall thickness t X , constant height H X , the range value of height H is 1.71~3.0m;
[0044] Measure the cross-section characteristic value of the upper pipe and lower pipe hair cross-section: the cross-sectional area of the upper pipe A S , moment of inertia I S , section die W S , radius of gyration i S ;Cross-sectional area of lower tube A X , moment of inertia I X , Section modulus W X , ra...
Embodiment 2
[0075] Such as Picture 1-1 , Figure 1-2 , Figure 1-3 , Figure 3-1 , Figure 3-2 As shown, a method for detecting the stability of a single-stage variable stiffness axial compression rod with a fixed lower end and a freely adjustable upper end includes the following steps: taking an adjustable single-stage variable stiffness axial compression rod, the upper , The lower tube is connected by a pin; the outer diameter D of the upper tube of the steel support is measured S , tube wall thickness t S , variable height H S , Upper tube hole spacing@, hole diameter d; Lower tube outer diameter D X , tube wall thickness t X , constant height H X , the range value of height H is 1.71~3.0m;
[0076] Measure the cross-section characteristic value of the upper pipe and lower pipe hair cross-section: the cross-sectional area of the upper pipe A S , moment of inertia I S , section die W S , radius of gyration i S ;Cross-sectional area of lower tube A X , moment of inertia...
Embodiment 2 or 3
[0104] Embodiment 2 or 3 Practical application of a stability detection method for adjustable independent steel supports: DLZ-1, DLZ-2, DLZ-3 three specifications of adjustable independent steel supports produced by Beijing Aoyu Formwork Group in 2007 All the steel supports can be tested for stability in the embodiment, and the stability test for DLZ-1 is now carried out specifically.
[0105] Figure 4 As shown, measure the outer diameter of the upper pipe D s =48mm, pipe wall thickness t s = 3.0mm, height H S It is 1.07m (variable), the opening distance of the upper tube @=150mm, and the hole diameter d=17mm. Down tube outer diameter D x =60mm, tube wall thickness t x = 3.0mm, height H x is unchanged at 1.448m. Available height H = 1.71 ~ 3.0m. The upper and lower pipes are connected with φ=16mm pins. The section characteristics of the upper tube φ48×3 and the lower tube φ60×3: the section parameters of the upper tube: the cross-sectional area A s =424mm 2 , momen...
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