按結構形(xing)式(shi)和受力(li)特點(dian)樓梯形(xing)式(shi)可分(fen)為板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和螺旋式(shi)，前兩(liang)種屬(shu)于平面受力(li)體(ti)系(xi)，后兩(liang)種則為空間受力(li)體(ti)系(xi)。

板(ban)(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)(ban)(ban)和(he)平(ping)臺梁組成。梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)是(shi)一(yi)塊(kuai)帶踏步的斜板(ban)(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)(ban)支承于上、下(xia)平(ping)臺梁上，底層下(xia)端支承在地(di)壟(long)墻上。板(ban)(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)的優(you)點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)下(xia)表面(mian)平(ping)整，支模簡單;其缺(que)點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)跨度較(jiao)大時，斜板(ban)(ban)(ban)(ban)(ban)厚度較(jiao)大，結構材料用(yong)(yong)量(liang)較(jiao)多。因此(ci)板(ban)(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)適用(yong)(yong)于可變荷(he)載較(jiao)小(xiao)、梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)跨度一(yi)般(ban)不大于3m的情況。