按結構形式(shi)和(he)受(shou)力特點樓梯形式(shi)可分(fen)為板式(shi)、梁(liang)式(shi)、懸挑(剪刀)式(shi)和(he)螺(luo)旋式(shi)，前兩種(zhong)屬于平面受(shou)力體系，后兩種(zhong)則為空間(jian)受(shou)力體系。

板(ban)(ban)(ban)(ban)(ban)式樓(lou)梯(ti)(ti)(ti)是(shi)(shi)由梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)(ban)(ban)和平(ping)臺梁組成。梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)是(shi)(shi)一塊帶(dai)踏步的(de)斜板(ban)(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)(ban)支(zhi)承(cheng)于(yu)上、下(xia)平(ping)臺梁上，底層下(xia)端支(zhi)承(cheng)在地壟(long)墻上。板(ban)(ban)(ban)(ban)(ban)式樓(lou)梯(ti)(ti)(ti)的(de)優點是(shi)(shi)梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)下(xia)表面平(ping)整，支(zhi)模簡單;其缺點是(shi)(shi)梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)跨度較大時，斜板(ban)(ban)(ban)(ban)(ban)厚度較大，結構材料用量(liang)較多。因此板(ban)(ban)(ban)(ban)(ban)式樓(lou)梯(ti)(ti)(ti)適(shi)用于(yu)可(ke)變荷(he)載較小、梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)跨度一般不大于(yu)3m的(de)情況。