按結構形式(shi)(shi)和(he)受(shou)力特點樓梯形式(shi)(shi)可分為(wei)板式(shi)(shi)、梁式(shi)(shi)、懸(xuan)挑(剪(jian)刀(dao))式(shi)(shi)和(he)螺旋式(shi)(shi)，前兩(liang)種屬(shu)于(yu)平面(mian)受(shou)力體系(xi)，后兩(liang)種則(ze)為(wei)空間受(shou)力體系(xi)。

板(ban)(ban)(ban)(ban)(ban)式(shi)(shi)樓(lou)梯是(shi)由梯段板(ban)(ban)(ban)(ban)(ban)、平臺板(ban)(ban)(ban)(ban)(ban)和平臺梁組(zu)成。梯段板(ban)(ban)(ban)(ban)(ban)是(shi)一塊帶踏步(bu)的斜(xie)板(ban)(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)(ban)支承(cheng)于上(shang)、下平臺梁上(shang)，底(di)層下端支承(cheng)在地壟(long)墻上(shang)。板(ban)(ban)(ban)(ban)(ban)式(shi)(shi)樓(lou)梯的優點是(shi)梯段板(ban)(ban)(ban)(ban)(ban)下表面平整(zheng)，支模簡單(dan);其缺(que)點是(shi)梯段板(ban)(ban)(ban)(ban)(ban)跨(kua)度較(jiao)大時，斜(xie)板(ban)(ban)(ban)(ban)(ban)厚度較(jiao)大，結構材料用量較(jiao)多。因此板(ban)(ban)(ban)(ban)(ban)式(shi)(shi)樓(lou)梯適用于可變(bian)荷(he)載(zai)較(jiao)小、梯段板(ban)(ban)(ban)(ban)(ban)跨(kua)度一般不(bu)大于3m的情況。