按(an)結(jie)構形式(shi)(shi)和受(shou)(shou)力特點樓梯形式(shi)(shi)可分為板(ban)式(shi)(shi)、梁式(shi)(shi)、懸(xuan)挑(剪刀)式(shi)(shi)和螺旋(xuan)式(shi)(shi)，前兩種屬于平面受(shou)(shou)力體系，后兩種則為空間受(shou)(shou)力體系。

板(ban)(ban)(ban)(ban)式(shi)樓梯是由(you)梯段板(ban)(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)(ban)和平(ping)臺梁組成(cheng)。梯段板(ban)(ban)(ban)(ban)是一(yi)塊帶(dai)踏步的(de)(de)斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支(zhi)承于(yu)上(shang)、下平(ping)臺梁上(shang)，底層下端支(zhi)承在(zai)地(di)壟(long)墻上(shang)。板(ban)(ban)(ban)(ban)式(shi)樓梯的(de)(de)優點(dian)是梯段板(ban)(ban)(ban)(ban)下表面平(ping)整，支(zhi)模簡(jian)單;其缺點(dian)是梯段板(ban)(ban)(ban)(ban)跨(kua)度(du)較(jiao)(jiao)大(da)時，斜(xie)板(ban)(ban)(ban)(ban)厚度(du)較(jiao)(jiao)大(da)，結(jie)構(gou)材(cai)料(liao)用(yong)(yong)量較(jiao)(jiao)多。因此板(ban)(ban)(ban)(ban)式(shi)樓梯適(shi)用(yong)(yong)于(yu)可變荷載較(jiao)(jiao)小(xiao)、梯段板(ban)(ban)(ban)(ban)跨(kua)度(du)一(yi)般(ban)不大(da)于(yu)3m的(de)(de)情況。