按結構形式和受力(li)特點樓(lou)梯(ti)形式可分為(wei)板(ban)式、梁式、懸挑(剪刀)式和螺旋式，前兩種(zhong)屬(shu)于(yu)平面受力(li)體系，后兩種(zhong)則為(wei)空間受力(li)體系。

板(ban)(ban)(ban)(ban)(ban)式樓(lou)梯(ti)(ti)是(shi)由梯(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)(ban)(ban)和(he)平(ping)臺梁組成(cheng)。梯(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)是(shi)一(yi)塊帶踏步的斜板(ban)(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)(ban)支(zhi)(zhi)承于(yu)上(shang)、下(xia)平(ping)臺梁上(shang)，底(di)層下(xia)端支(zhi)(zhi)承在地壟墻上(shang)。板(ban)(ban)(ban)(ban)(ban)式樓(lou)梯(ti)(ti)的優點是(shi)梯(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)下(xia)表(biao)面平(ping)整，支(zhi)(zhi)模簡(jian)單;其缺(que)點是(shi)梯(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)跨度(du)較(jiao)大(da)(da)時，斜板(ban)(ban)(ban)(ban)(ban)厚度(du)較(jiao)大(da)(da)，結構材料用量較(jiao)多。因(yin)此板(ban)(ban)(ban)(ban)(ban)式樓(lou)梯(ti)(ti)適用于(yu)可變荷(he)載較(jiao)小(xiao)、梯(ti)(ti)段板(ban)(ban)(ban)(ban)(ban)跨度(du)一(yi)般不大(da)(da)于(yu)3m的情況。