開口(kou)樓(lou)(lou)承(cheng)板(ban)(ban)的(de)(de)厚度(du)與板(ban)(ban)型的(de)(de)選(xuan)擇(ze)是(shi)基(ji)于施工(gong)避免臨時支(zhi)(zhi)撐為原則的(de)(de)樓(lou)(lou)承(cheng)板(ban)(ban)在澆筑鋼(gang)筋(jin)混凝土時作為施工(gong)用(yong)鋼(gang)承(cheng)模板(ban)(ban)，用(yong)圓術頭焊釘穿透樓(lou)(lou)承(cheng)板(ban)(ban)焊接(jie)在鋼(gang)梁上翼緣后，并可對鋼(gang)梁起側向支(zhi)(zhi)承(cheng)作用(yong)。 在使用(yong)階(jie)段樓(lou)(lou)承(cheng)板(ban)(ban)作為混凝土樓(lou)(lou)板(ban)(ban)的(de)(de)受(shou)拉鋼(gang)筋(jin)，也提高了樓(lou)(lou)板(ban)(ban)的(de)(de)剛度(du)，節省了鋼(gang)盤和混凝土的(de)(de)用(yong)量。