ASTM Standard I-beams ua tau raws li qhov yuav tsum tau muaj ntawm American Society for Testing and Materials (ASTM) International, uas yog ib qho kev lees paub thoob ntiaj teb - teeb tsa lub koom haum rau cov khoom, khoom, tshuab, thiab kev pabcuam.
Qhov luaj li cas ntawm ASTM Standard I-beams yog tus qauv, txhais tau tias lawv qhov ntev yog tswj hwm thiab zoo ib yam thoob plaws hauv kev lag luam. Cov kab teeb no feem ntau yog tsim los ntawm carbon steel, uas muab kev sib xyaw ua ke ntawm lub zog thiab kev pheej yig. Cov flanges ntawm I-beam muab lub zog thiab rigidity, ua rau nws haum rau siv nyob rau hauv load- bearing daim ntaub ntawv.
ASTM Standard I-beams yog dav siv nyob rau hauv kev tsim kho tej yaam num, nrog rau cov choj thiab lub tsev tsim kho. Lawv yog ib qho tseem ceeb ntawm cov qauv steel, muab kev txhawb nqa thiab kev ruaj ntseg. Tsis tas li ntawd, lawv tuaj yeem siv rau lwm yam kev siv, xws li hauv kev tsim khoom thiab kev thauj mus los.
Zuag qhia tag nrho, ASTM Standard I-beams muaj ntau yam zoo, nrog rau lub zog, ntau yam, thiab siv tau yooj yim. Lawv muaj nyob rau hauv ntau qhov ntau thiab tsawg, ua rau lawv haum rau ntau yam kev siv. Txawm hais tias koj tab tom tsim cov qauv tshiab lossis rov kho dua ib qho uas twb muaj lawm, ASTM Standard I-beams yog qhov kev xaiv zoo tshaj rau koj cov kev xav tau kev tsim kho.