按結構形式(shi)(shi)(shi)和受(shou)力特點樓梯形式(shi)(shi)(shi)可(ke)分為(wei)板式(shi)(shi)(shi)、梁式(shi)(shi)(shi)、懸挑(剪(jian)刀(dao))式(shi)(shi)(shi)和螺旋式(shi)(shi)(shi)，前兩種(zhong)屬(shu)于平面受(shou)力體(ti)系，后兩種(zhong)則為(wei)空間受(shou)力體(ti)系。

板(ban)(ban)(ban)式(shi)樓梯是由梯段板(ban)(ban)(ban)、平(ping)臺(tai)(tai)板(ban)(ban)(ban)和平(ping)臺(tai)(tai)梁組成。梯段板(ban)(ban)(ban)是一塊帶踏步的(de)(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支承于上、下(xia)(xia)平(ping)臺(tai)(tai)梁上，底層(ceng)下(xia)(xia)端支承在地(di)壟墻上。板(ban)(ban)(ban)式(shi)樓梯的(de)(de)優點(dian)是梯段板(ban)(ban)(ban)下(xia)(xia)表面平(ping)整，支模簡單(dan);其缺點(dian)是梯段板(ban)(ban)(ban)跨度(du)較大(da)時，斜板(ban)(ban)(ban)厚度(du)較大(da)，結構(gou)材料用量較多(duo)。因此(ci)板(ban)(ban)(ban)式(shi)樓梯適用于可變(bian)荷載較小、梯段板(ban)(ban)(ban)跨度(du)一般不(bu)大(da)于3m的(de)(de)情況。