按結構形式和(he)受(shou)力特點樓梯(ti)形式可分(fen)為板(ban)式、梁式、懸挑(tiao)(剪刀)式和(he)螺旋式，前兩種(zhong)屬于平面受(shou)力體系(xi)，后兩種(zhong)則為空間(jian)受(shou)力體系(xi)。

板(ban)(ban)(ban)(ban)式樓梯(ti)是(shi)由梯(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)、平臺板(ban)(ban)(ban)(ban)和平臺梁組成。梯(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)是(shi)一(yi)塊(kuai)帶踏步的斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支承(cheng)于上、下平臺梁上，底(di)層下端支承(cheng)在地壟墻上。板(ban)(ban)(ban)(ban)式樓梯(ti)的優點是(shi)梯(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)下表面(mian)平整(zheng)，支模(mo)簡單;其缺點是(shi)梯(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)跨度(du)較大(da)(da)時，斜(xie)板(ban)(ban)(ban)(ban)厚度(du)較大(da)(da)，結(jie)構材料用量(liang)較多。因此板(ban)(ban)(ban)(ban)式樓梯(ti)適用于可變荷載較小(xiao)、梯(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)跨度(du)一(yi)般不大(da)(da)于3m的情(qing)況。