按結構形式(shi)(shi)和(he)受(shou)力特點樓梯形式(shi)(shi)可分為板式(shi)(shi)、梁(liang)式(shi)(shi)、懸挑(剪刀)式(shi)(shi)和(he)螺旋式(shi)(shi)，前兩種屬于平面受(shou)力體(ti)(ti)系(xi)，后(hou)兩種則為空間受(shou)力體(ti)(ti)系(xi)。

板(ban)(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)(ti)(ti)是由梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)(ban)和(he)平臺(tai)梁(liang)組成。梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)是一塊帶踏步(bu)的(de)斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支(zhi)(zhi)承于上(shang)、下(xia)平臺(tai)梁(liang)上(shang)，底層下(xia)端支(zhi)(zhi)承在(zai)地壟墻(qiang)上(shang)。板(ban)(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)(ti)(ti)的(de)優點是梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)下(xia)表面(mian)平整，支(zhi)(zhi)模簡單;其缺點是梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨(kua)度(du)較(jiao)(jiao)大時，斜(xie)板(ban)(ban)(ban)(ban)厚(hou)度(du)較(jiao)(jiao)大，結構(gou)材料用量較(jiao)(jiao)多。因(yin)此(ci)板(ban)(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)(ti)(ti)適用于可變荷載較(jiao)(jiao)小、梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨(kua)度(du)一般不大于3m的(de)情況(kuang)。