按結構形式(shi)(shi)和(he)受(shou)力(li)特點(dian)樓梯形式(shi)(shi)可(ke)分(fen)為板式(shi)(shi)、梁式(shi)(shi)、懸(xuan)挑(剪刀)式(shi)(shi)和(he)螺旋式(shi)(shi)，前兩種屬(shu)于平面受(shou)力(li)體(ti)系，后兩種則為空間受(shou)力(li)體(ti)系。

板(ban)(ban)(ban)(ban)式(shi)(shi)樓梯(ti)(ti)是由梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)(ban)和平臺(tai)梁組成。梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)是一塊帶踏步(bu)的(de)斜板(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)支(zhi)承于上、下平臺(tai)梁上，底(di)層下端支(zhi)承在地壟墻上。板(ban)(ban)(ban)(ban)式(shi)(shi)樓梯(ti)(ti)的(de)優(you)點是梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)下表面(mian)平整，支(zhi)模簡單;其缺點是梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)跨(kua)度較(jiao)大(da)時，斜板(ban)(ban)(ban)(ban)厚度較(jiao)大(da)，結構材料用(yong)量較(jiao)多。因(yin)此(ci)板(ban)(ban)(ban)(ban)式(shi)(shi)樓梯(ti)(ti)適用(yong)于可變荷載較(jiao)小(xiao)、梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)(ban)跨(kua)度一般不(bu)大(da)于3m的(de)情況。