Nā papahana

1. ʻO nā purlins a pau ma luna nei he mau puʻupuʻu kila rectangular galvanized,ʻo ka nui o ka galvanizing he 250 ~ 275g / m, aʻo ka mea Q235B.

2. Pono e nānā ʻia ka nui o ka pūnaewele ma mua o ke kūkulu ʻia ʻana o ka hale.

3. ʻO nā mea ʻē aʻe i hōʻike ʻole ʻia e hoʻokō me nā kūlana aupuni o kēia manawa.

4. ʻO ke kaʻina o ka hoʻokomo ʻana: ʻo ka lawe ʻana i ka pōleʻa - ke kaula kaula lalo, ke koʻokoʻo - ke koʻokoʻo ʻōpū - ka pōlele kaula luna, ke koʻokoʻo.

Ke kila: Inā ʻaʻole i kuhikuhi ʻia, ua hana ʻia nā paipu kila a pau me ke kila Q235B.E ho'okō 'ia kona haku mele 'ana a me nā waiwai me nā 'ōlelo o ka "Carbon Structural Steel" (GB/T700-2006) i kēia manawa.ʻO ka ikaika tensile, elongation, yield point, cold bending test and impact toughness of the material e pono e hōʻoia ʻia e kūpono, a ʻo ka ʻike o ka sulfur, phosphorus a me ke kalapona e pono e hoʻokō i nā koi.ʻO ka ʻae ʻana o ka mānoanoa o ka pā kila e hoʻokō i nā koi no ka hana seismic o ke kila ma "Dimensions, Shapes, Weights and Tolerances of Hot-Rolled Steel Plates and Strips":

1) ʻAʻole pono eʻoi aku ka nui o ka waiwai i anaʻia o ka ikaika o ke kila i ka waiwai i anaʻia o ka ikaika tensile ma mua o 0.85;

2) Pono e loaʻa i ke kila nā ʻanuʻu hua, a ʻaʻole e emi ka elongation ma lalo o 20%;

3) Pono ke kila i ka weldability maikaʻi a me ka paʻakikī hopena kūpono.