按結構形式(shi)(shi)(shi)和(he)受(shou)力特(te)點(dian)樓(lou)梯(ti)形式(shi)(shi)(shi)可分為板式(shi)(shi)(shi)、梁式(shi)(shi)(shi)、懸挑(剪刀)式(shi)(shi)(shi)和(he)螺旋(xuan)式(shi)(shi)(shi)，前兩種屬于平(ping)面受(shou)力體系，后兩種則為空(kong)間受(shou)力體系。

板(ban)式樓梯(ti)是(shi)(shi)(shi)由梯(ti)段(duan)板(ban)、平(ping)臺板(ban)和平(ping)臺梁(liang)組成。梯(ti)段(duan)板(ban)是(shi)(shi)(shi)一塊帶(dai)踏步的斜板(ban)，斜板(ban)支(zhi)承于上、下平(ping)臺梁(liang)上，底層下端(duan)支(zhi)承在地壟墻(qiang)上。板(ban)式樓梯(ti)的優點是(shi)(shi)(shi)梯(ti)段(duan)板(ban)下表(biao)面(mian)平(ping)整，支(zhi)模簡(jian)單(dan);其缺點是(shi)(shi)(shi)梯(ti)段(duan)板(ban)跨度(du)(du)較大(da)(da)時，斜板(ban)厚度(du)(du)較大(da)(da)，結構(gou)材料用(yong)量較多(duo)。因(yin)此(ci)板(ban)式樓梯(ti)適用(yong)于可(ke)變荷載(zai)較小、梯(ti)段(duan)板(ban)跨度(du)(du)一般(ban)不大(da)(da)于3m的情況。