按結構形式(shi)和受力(li)特點(dian)樓梯形式(shi)可分為板式(shi)、梁(liang)式(shi)、懸挑(剪刀)式(shi)和螺旋式(shi)，前兩(liang)種(zhong)屬(shu)于(yu)平面受力(li)體(ti)系，后(hou)兩(liang)種(zhong)則為空間受力(li)體(ti)系。

板(ban)(ban)(ban)(ban)(ban)(ban)式樓(lou)梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)(ban)(ban)(ban)和平(ping)臺梁組成。梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)(ban)是(shi)一塊帶踏步(bu)的斜板(ban)(ban)(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)(ban)(ban)支(zhi)承于(yu)上、下(xia)(xia)(xia)平(ping)臺梁上，底層下(xia)(xia)(xia)端支(zhi)承在地(di)壟墻上。板(ban)(ban)(ban)(ban)(ban)(ban)式樓(lou)梯(ti)(ti)的優點(dian)是(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)(ban)下(xia)(xia)(xia)表面平(ping)整，支(zhi)模簡單;其(qi)缺點(dian)是(shi)梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)(ban)跨度較(jiao)(jiao)大時，斜板(ban)(ban)(ban)(ban)(ban)(ban)厚度較(jiao)(jiao)大，結(jie)構材料用量較(jiao)(jiao)多。因此(ci)板(ban)(ban)(ban)(ban)(ban)(ban)式樓(lou)梯(ti)(ti)適用于(yu)可變荷載較(jiao)(jiao)小、梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)(ban)(ban)跨度一般(ban)不大于(yu)3m的情況。