按結構形式(shi)(shi)和(he)受力特點樓(lou)梯(ti)形式(shi)(shi)可分為板(ban)式(shi)(shi)、梁式(shi)(shi)、懸挑(剪刀)式(shi)(shi)和(he)螺旋式(shi)(shi)，前兩(liang)種屬(shu)于(yu)平面受力體系，后兩(liang)種則(ze)為空間受力體系。

板(ban)(ban)(ban)(ban)式樓(lou)梯是(shi)由梯段(duan)板(ban)(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)(ban)和平臺(tai)梁組成。梯段(duan)板(ban)(ban)(ban)(ban)是(shi)一塊帶踏步(bu)的(de)斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支承于上(shang)(shang)、下(xia)(xia)平臺(tai)梁上(shang)(shang)，底層下(xia)(xia)端支承在地壟墻上(shang)(shang)。板(ban)(ban)(ban)(ban)式樓(lou)梯的(de)優點是(shi)梯段(duan)板(ban)(ban)(ban)(ban)下(xia)(xia)表面(mian)平整，支模簡(jian)單;其缺點是(shi)梯段(duan)板(ban)(ban)(ban)(ban)跨度較(jiao)大(da)時，斜(xie)板(ban)(ban)(ban)(ban)厚度較(jiao)大(da)，結構材料用量較(jiao)多。因此板(ban)(ban)(ban)(ban)式樓(lou)梯適用于可變荷(he)載較(jiao)小、梯段(duan)板(ban)(ban)(ban)(ban)跨度一般不大(da)于3m的(de)情況(kuang)。