按結構形(xing)(xing)式和受(shou)力特(te)點樓(lou)梯形(xing)(xing)式可(ke)分為板式、梁(liang)式、懸挑(tiao)(剪(jian)刀)式和螺旋式，前兩種屬于平面受(shou)力體(ti)系(xi)，后兩種則為空間受(shou)力體(ti)系(xi)。

板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)(ti)是(shi)(shi)由梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)(ban)和平臺(tai)梁(liang)組(zu)成。梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)是(shi)(shi)一(yi)塊帶踏步的斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支承(cheng)于(yu)上、下(xia)平臺(tai)梁(liang)上，底(di)層下(xia)端支承(cheng)在地壟(long)墻上。板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)(ti)的優(you)點是(shi)(shi)梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)下(xia)表(biao)面(mian)平整，支模簡單;其缺點是(shi)(shi)梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨度較(jiao)大(da)時，斜(xie)板(ban)(ban)(ban)(ban)厚度較(jiao)大(da)，結構(gou)材料用量較(jiao)多。因此板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)(ti)適用于(yu)可變荷載(zai)較(jiao)小(xiao)、梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨度一(yi)般不大(da)于(yu)3m的情況。