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)、梁式(shi)(shi)、懸挑(剪刀(dao))式(shi)(shi)和螺旋式(shi)(shi)，前兩(liang)種屬于平面受力(li)體系(xi)，后兩(liang)種則為空間受力(li)體系(xi)。

板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)(ti)是由梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)、平臺板(ban)(ban)(ban)(ban)和平臺梁組(zu)成。梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)是一塊帶踏步的斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支(zhi)承于(yu)上(shang)、下(xia)平臺梁上(shang)，底(di)層下(xia)端支(zhi)承在地壟墻上(shang)。板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)(ti)的優點是梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)下(xia)表面平整，支(zhi)模簡單;其缺(que)點是梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)跨度(du)較(jiao)大(da)時，斜(xie)板(ban)(ban)(ban)(ban)厚度(du)較(jiao)大(da)，結構材料用量較(jiao)多。因(yin)此板(ban)(ban)(ban)(ban)式樓梯(ti)(ti)(ti)適(shi)用于(yu)可(ke)變荷載較(jiao)小(xiao)、梯(ti)(ti)(ti)段板(ban)(ban)(ban)(ban)跨度(du)一般不(bu)大(da)于(yu)3m的情況(kuang)。