按結構形(xing)式(shi)(shi)(shi)和(he)受(shou)力(li)特(te)點(dian)樓梯形(xing)式(shi)(shi)(shi)可(ke)分(fen)為板式(shi)(shi)(shi)、梁式(shi)(shi)(shi)、懸挑(tiao)(剪刀)式(shi)(shi)(shi)和(he)螺旋(xuan)式(shi)(shi)(shi)，前兩(liang)種(zhong)屬于平(ping)面受(shou)力(li)體(ti)系，后兩(liang)種(zhong)則(ze)為空間受(shou)力(li)體(ti)系。

板(ban)(ban)(ban)式(shi)樓梯(ti)(ti)是(shi)由梯(ti)(ti)段板(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)和平臺(tai)梁組(zu)成。梯(ti)(ti)段板(ban)(ban)(ban)是(shi)一塊帶踏步的(de)(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)(zhi)承(cheng)于上、下(xia)平臺(tai)梁上，底(di)層下(xia)端支(zhi)(zhi)承(cheng)在地壟墻(qiang)上。板(ban)(ban)(ban)式(shi)樓梯(ti)(ti)的(de)(de)優點(dian)是(shi)梯(ti)(ti)段板(ban)(ban)(ban)下(xia)表面(mian)平整，支(zhi)(zhi)模簡單(dan);其(qi)缺點(dian)是(shi)梯(ti)(ti)段板(ban)(ban)(ban)跨度較(jiao)大時，斜板(ban)(ban)(ban)厚度較(jiao)大，結構材料用量較(jiao)多。因此板(ban)(ban)(ban)式(shi)樓梯(ti)(ti)適(shi)用于可變(bian)荷(he)載較(jiao)小、梯(ti)(ti)段板(ban)(ban)(ban)跨度一般不大于3m的(de)(de)情況。