按結構(gou)形式(shi)和(he)受(shou)(shou)力(li)特(te)點樓梯形式(shi)可分為板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和(he)螺旋式(shi)，前兩(liang)種屬于平(ping)面(mian)受(shou)(shou)力(li)體系，后兩(liang)種則為空間受(shou)(shou)力(li)體系。

板(ban)(ban)式(shi)樓梯是(shi)由梯段板(ban)(ban)、平臺(tai)板(ban)(ban)和平臺(tai)梁組成。梯段板(ban)(ban)是(shi)一(yi)塊(kuai)帶(dai)踏步(bu)的斜板(ban)(ban)，斜板(ban)(ban)支承于(yu)上、下(xia)平臺(tai)梁上，底層下(xia)端支承在(zai)地(di)壟墻上。板(ban)(ban)式(shi)樓梯的優點(dian)是(shi)梯段板(ban)(ban)下(xia)表(biao)面平整，支模簡單(dan);其缺點(dian)是(shi)梯段板(ban)(ban)跨(kua)度(du)較(jiao)(jiao)大時，斜板(ban)(ban)厚度(du)較(jiao)(jiao)大，結構材料用量較(jiao)(jiao)多。因(yin)此板(ban)(ban)式(shi)樓梯適用于(yu)可變荷(he)載較(jiao)(jiao)小、梯段板(ban)(ban)跨(kua)度(du)一(yi)般不(bu)大于(yu)3m的情(qing)況。