按結(jie)構形式(shi)和(he)受力(li)特點樓梯形式(shi)可分(fen)為板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和(he)螺旋式(shi)，前兩(liang)種(zhong)屬于平面受力(li)體系(xi)，后兩(liang)種(zhong)則為空間受力(li)體系(xi)。

板(ban)(ban)式樓梯(ti)是(shi)(shi)由(you)梯(ti)段板(ban)(ban)、平臺板(ban)(ban)和(he)平臺梁組成。梯(ti)段板(ban)(ban)是(shi)(shi)一塊帶踏步的斜板(ban)(ban)，斜板(ban)(ban)支(zhi)承于上、下(xia)平臺梁上，底層下(xia)端支(zhi)承在(zai)地壟墻上。板(ban)(ban)式樓梯(ti)的優點是(shi)(shi)梯(ti)段板(ban)(ban)下(xia)表面平整，支(zhi)模簡單;其缺點是(shi)(shi)梯(ti)段板(ban)(ban)跨度(du)較大(da)時，斜板(ban)(ban)厚度(du)較大(da)，結構(gou)材料用量較多。因此板(ban)(ban)式樓梯(ti)適用于可變荷載較小(xiao)、梯(ti)段板(ban)(ban)跨度(du)一般不大(da)于3m的情況(kuang)。