按結構形式(shi)(shi)(shi)和(he)受力(li)(li)特點(dian)樓梯形式(shi)(shi)(shi)可分為板式(shi)(shi)(shi)、梁(liang)式(shi)(shi)(shi)、懸(xuan)挑(剪刀)式(shi)(shi)(shi)和(he)螺旋式(shi)(shi)(shi)，前兩種屬于平面受力(li)(li)體(ti)系(xi)，后兩種則為空間受力(li)(li)體(ti)系(xi)。

板(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)(ti)是(shi)由梯(ti)(ti)(ti)段板(ban)(ban)(ban)、平臺板(ban)(ban)(ban)和平臺梁組(zu)成。梯(ti)(ti)(ti)段板(ban)(ban)(ban)是(shi)一塊帶踏步的(de)斜(xie)板(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)支(zhi)承于(yu)上(shang)、下平臺梁上(shang)，底層(ceng)下端(duan)支(zhi)承在地壟墻上(shang)。板(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)(ti)的(de)優(you)點是(shi)梯(ti)(ti)(ti)段板(ban)(ban)(ban)下表面平整(zheng)，支(zhi)模簡單;其缺點是(shi)梯(ti)(ti)(ti)段板(ban)(ban)(ban)跨(kua)(kua)度(du)較大(da)(da)時(shi)，斜(xie)板(ban)(ban)(ban)厚度(du)較大(da)(da)，結構(gou)材料(liao)用量(liang)較多。因(yin)此(ci)板(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)(ti)適用于(yu)可變荷(he)載較小、梯(ti)(ti)(ti)段板(ban)(ban)(ban)跨(kua)(kua)度(du)一般不大(da)(da)于(yu)3m的(de)情況。