按結(jie)構形(xing)式(shi)(shi)和受(shou)力(li)特(te)點(dian)樓梯形(xing)式(shi)(shi)可分為板式(shi)(shi)、梁(liang)式(shi)(shi)、懸挑(剪(jian)刀)式(shi)(shi)和螺旋式(shi)(shi)，前(qian)兩(liang)種屬于(yu)平面受(shou)力(li)體(ti)系，后兩(liang)種則為空間受(shou)力(li)體(ti)系。

板(ban)(ban)式樓(lou)梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)板(ban)(ban)、平臺板(ban)(ban)和平臺梁組成。梯(ti)(ti)段(duan)板(ban)(ban)是(shi)一塊帶踏(ta)步的斜板(ban)(ban)，斜板(ban)(ban)支承于(yu)上(shang)(shang)、下(xia)平臺梁上(shang)(shang)，底層(ceng)下(xia)端支承在地壟墻上(shang)(shang)。板(ban)(ban)式樓(lou)梯(ti)(ti)的優(you)點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)下(xia)表面平整，支模簡單;其缺點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)跨度較(jiao)(jiao)(jiao)(jiao)大(da)時，斜板(ban)(ban)厚度較(jiao)(jiao)(jiao)(jiao)大(da)，結構材(cai)料用量較(jiao)(jiao)(jiao)(jiao)多。因此板(ban)(ban)式樓(lou)梯(ti)(ti)適用于(yu)可變(bian)荷(he)載(zai)較(jiao)(jiao)(jiao)(jiao)小(xiao)、梯(ti)(ti)段(duan)板(ban)(ban)跨度一般不大(da)于(yu)3m的情況。