按結構形式(shi)(shi)和受力(li)特點樓梯形式(shi)(shi)可分為板式(shi)(shi)、梁(liang)式(shi)(shi)、懸挑(剪刀(dao))式(shi)(shi)和螺旋(xuan)式(shi)(shi)，前兩種屬于平面受力(li)體系，后兩種則為空間受力(li)體系。

板(ban)(ban)(ban)式(shi)樓梯(ti)(ti)是由梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)、平臺(tai)(tai)板(ban)(ban)(ban)和平臺(tai)(tai)梁組成。梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)是一(yi)(yi)塊(kuai)帶踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承(cheng)于上、下平臺(tai)(tai)梁上，底層下端支(zhi)承(cheng)在地壟墻上。板(ban)(ban)(ban)式(shi)樓梯(ti)(ti)的(de)優(you)點(dian)是梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)下表面平整，支(zhi)模簡單;其缺點(dian)是梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨(kua)度(du)較大(da)時(shi)，斜板(ban)(ban)(ban)厚度(du)較大(da)，結構材料用(yong)量(liang)較多(duo)。因此板(ban)(ban)(ban)式(shi)樓梯(ti)(ti)適(shi)用(yong)于可變荷載較小、梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨(kua)度(du)一(yi)(yi)般(ban)不(bu)大(da)于3m的(de)情(qing)況。