按結構形式和(he)受力特(te)點樓梯(ti)形式可分為(wei)板式、梁式、懸挑(剪刀(dao))式和(he)螺旋式，前兩(liang)種屬于平面(mian)受力體系，后兩(liang)種則為(wei)空(kong)間(jian)受力體系。

板(ban)(ban)式(shi)樓梯(ti)(ti)是由梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)、平(ping)臺(tai)板(ban)(ban)和平(ping)臺(tai)梁組(zu)成。梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)是一塊帶踏(ta)步的斜板(ban)(ban)，斜板(ban)(ban)支(zhi)承于(yu)(yu)上、下平(ping)臺(tai)梁上，底(di)層下端支(zhi)承在地壟墻上。板(ban)(ban)式(shi)樓梯(ti)(ti)的優(you)點是梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)下表面平(ping)整(zheng)，支(zhi)模簡單;其(qi)缺點是梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)跨(kua)度較大(da)(da)時，斜板(ban)(ban)厚度較大(da)(da)，結(jie)構(gou)材料用量較多。因此板(ban)(ban)式(shi)樓梯(ti)(ti)適(shi)用于(yu)(yu)可變荷(he)載較小、梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)跨(kua)度一般不大(da)(da)于(yu)(yu)3m的情況。