He aha ka ʻokoʻa ma waena o HEA a me HEB?

Hōʻike ʻia ka moʻo HEA e nā flanges haiki a me kahi ʻāpana keʻa kiʻekiʻe, e hāʻawi ana i ka hana kulou maikaʻi loa. Lawe anaHea 200 Beame like me ka laʻana, he kiʻekiʻe o 200mm, he flange laula o 100mm, he pūnaewele mānoanoa o 5.5mm, he flange mānoanoa o 8.5mm, a me ka māhele modulus (Wx) o 292cm³. He kūpono ia no nā kaola papahele ma nā hale he nui me nā palena kiʻekiʻe, e like me nā hale keʻena e hoʻohana ana i kēia hiʻohiʻona no nā ʻōnaehana papahele, hiki ke hōʻoia i ke kiʻekiʻe o ka papahele i ka wā e puʻunaue pono ai i nā ukana.

  

ʻO kaHeb Beamhoʻonui nui ka moʻo i ka hiki ke amo ma ka hoʻonui ʻana i ka laula flange a me ka mānoanoa pūnaewele. HEB200 he flange laula o 150mm, he pūnaewele mānoanoa o 6.5mm, he flange mānoanoa o 10mm, a me ka pauku modulus (Wx) o 497cm³, hoʻohana maʻamau no ka ukana-kaumaha kolamu i loko o nā mea kanu ʻoihana nui. I loko o nā mea kanu mīkini kaumaha, hiki i ka HEB series framework ke kākoʻo paʻa i nā mea hana kaumaha.

 

ʻO ka moʻo HEM, e hōʻike ana i nā ʻāpana medium-flange, loaʻa ke kaulike ma waena o ka hana kulou a me ka torsional. He 120mm ka laula flange o ka HEM200, he 7.4mm ka mānoanoa pūnaewele, he 12.5mm ka mānoanoa o ka flange, a he manawa torsional o ka inertia (It) o 142cm⁴, e pāʻani ana i kahi kuleana koʻikoʻi i nā noi e koi ana i ke kūpaʻa kiʻekiʻe, e like me nā pilina pili uwapo a me nā kumu lako nui. ʻO nā mea kōkua o nā alahaka keʻa o ke kai e hoʻohana ana i ka moʻo HEM e kū pono i ka hopena o ke kai a me nā koʻikoʻi paʻakikī. Hoʻonui kēia mau pūʻulu ʻekolu i ka hana hana a hoʻemi i nā kumukūʻai ma o ka hoʻolālā maʻamau, e hoʻokau i ka hoʻomohala mau ʻana o nā hale kūkulu kila.