按結構形(xing)(xing)式(shi)和受(shou)(shou)力特(te)點樓梯形(xing)(xing)式(shi)可分(fen)為板式(shi)、梁式(shi)、懸(xuan)挑(tiao)(剪刀)式(shi)和螺旋式(shi)，前兩(liang)種(zhong)屬(shu)于(yu)平面受(shou)(shou)力體系，后兩(liang)種(zhong)則為空間(jian)受(shou)(shou)力體系。

板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯是(shi)(shi)(shi)由(you)梯段(duan)板(ban)(ban)(ban)(ban)、平(ping)(ping)臺(tai)(tai)(tai)板(ban)(ban)(ban)(ban)和平(ping)(ping)臺(tai)(tai)(tai)梁組成。梯段(duan)板(ban)(ban)(ban)(ban)是(shi)(shi)(shi)一(yi)塊帶踏步(bu)的斜(xie)(xie)板(ban)(ban)(ban)(ban)，斜(xie)(xie)板(ban)(ban)(ban)(ban)支承于(yu)(yu)上(shang)、下(xia)平(ping)(ping)臺(tai)(tai)(tai)梁上(shang)，底層下(xia)端支承在地壟墻上(shang)。板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯的優點(dian)是(shi)(shi)(shi)梯段(duan)板(ban)(ban)(ban)(ban)下(xia)表面平(ping)(ping)整(zheng)，支模簡單;其缺點(dian)是(shi)(shi)(shi)梯段(duan)板(ban)(ban)(ban)(ban)跨度(du)較大時(shi)，斜(xie)(xie)板(ban)(ban)(ban)(ban)厚度(du)較大，結構材料用(yong)量(liang)較多(duo)。因此板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯適用(yong)于(yu)(yu)可變荷載(zai)較小、梯段(duan)板(ban)(ban)(ban)(ban)跨度(du)一(yi)般不大于(yu)(yu)3m的情況(kuang)。