按結構形(xing)式(shi)和(he)(he)受(shou)力(li)特(te)點樓(lou)梯形(xing)式(shi)可分(fen)為(wei)板式(shi)、梁(liang)式(shi)、懸挑(剪刀)式(shi)和(he)(he)螺旋式(shi)，前兩(liang)種屬于平面受(shou)力(li)體系，后兩(liang)種則為(wei)空間受(shou)力(li)體系。

板(ban)(ban)(ban)(ban)(ban)式(shi)樓梯是(shi)(shi)由梯段(duan)板(ban)(ban)(ban)(ban)(ban)、平(ping)臺(tai)板(ban)(ban)(ban)(ban)(ban)和平(ping)臺(tai)梁組成(cheng)。梯段(duan)板(ban)(ban)(ban)(ban)(ban)是(shi)(shi)一塊帶踏步的斜板(ban)(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)(ban)支承(cheng)于(yu)上、下平(ping)臺(tai)梁上，底層下端支承(cheng)在(zai)地壟墻上。板(ban)(ban)(ban)(ban)(ban)式(shi)樓梯的優點是(shi)(shi)梯段(duan)板(ban)(ban)(ban)(ban)(ban)下表(biao)面平(ping)整，支模簡(jian)單;其缺點是(shi)(shi)梯段(duan)板(ban)(ban)(ban)(ban)(ban)跨度(du)較大時，斜板(ban)(ban)(ban)(ban)(ban)厚(hou)度(du)較大，結構材料用(yong)量(liang)較多。因此板(ban)(ban)(ban)(ban)(ban)式(shi)樓梯適(shi)用(yong)于(yu)可(ke)變荷(he)載較小、梯段(duan)板(ban)(ban)(ban)(ban)(ban)跨度(du)一般不大于(yu)3m的情況。