Tus kheej qhov hnyav hais txog rau tus kheej qhov hnyav ntawm lub cev, vim yog qhov loj hauv nws. Lub load exerted vim qhov hnyav ntawm tus kheej yog qhov ruaj khov ntawm cov qauv. Nws tsis hloov lossis hloov mus txog thaum muaj kev hloov kho, ua rau lub cev zoo li hloov pauv hauv nws cov ntu ntu lossis hloov cov khoom siv.
Dab tsi yog qhov hnyav ntawm tus kheej?
Tus kheej-load, lossis tus kheej qhov hnyav, vim cov ntaub ntawv no feem ntau qhia tias yog ib chav ntsuas qhov hnyav ntawm kN / m 3 lossis lbs /ft3. Daim ntawv ceeb toom tias cov units no tau muab los ntawm lub zog, tsis yog pawg.
Yuav ntsuas tus kheej li cas?
Tus kheej qhov hnyav ntawm kab
=[ 2500kg / cum. × (4m. × 0.23m. × 0.45m.)
Tus kheej qhov hnyav ntawm lub truss yog dab tsi?
Tus kheej qhov hnyav ntawm lub ru tsev yog xam los ntawm formula: ((span/3) +5)10 N/m2. Qhov hnyav ntawm daim ntawv vov tsev (AC, GI ntawv) yog noj 131 N / sq m. (raws li IS – 875 (part 1): 1987.
Yuav ua li cas xam qhov hnyav ntawm lub truss?
txiav txim siab qhov hnyav ntawm koj lub truss, faib los ntawm qhov ntev, thiab qhov ntawd yuav muab koj qhov hnyav ntawm lub truss hauv phaus-ib-ko taw (PLF). Faib tus lej ntawd los ntawm truss spacing=PSF.
