按結構形式(shi)和受(shou)力特(te)點樓梯形式(shi)可分為(wei)板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和螺旋式(shi)，前兩種屬(shu)于平面(mian)受(shou)力體(ti)系，后(hou)兩種則為(wei)空間受(shou)力體(ti)系。

板(ban)(ban)式(shi)(shi)樓梯(ti)(ti)是(shi)(shi)由(you)梯(ti)(ti)段(duan)板(ban)(ban)、平(ping)臺板(ban)(ban)和平(ping)臺梁(liang)組成(cheng)。梯(ti)(ti)段(duan)板(ban)(ban)是(shi)(shi)一(yi)塊帶(dai)踏步的(de)斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于上(shang)、下平(ping)臺梁(liang)上(shang)，底層(ceng)下端支承在地壟墻上(shang)。板(ban)(ban)式(shi)(shi)樓梯(ti)(ti)的(de)優點是(shi)(shi)梯(ti)(ti)段(duan)板(ban)(ban)下表面平(ping)整(zheng)，支模(mo)簡單(dan);其缺點是(shi)(shi)梯(ti)(ti)段(duan)板(ban)(ban)跨度較(jiao)大(da)時，斜(xie)板(ban)(ban)厚度較(jiao)大(da)，結構材料用(yong)(yong)量較(jiao)多。因此板(ban)(ban)式(shi)(shi)樓梯(ti)(ti)適用(yong)(yong)于可變荷(he)載(zai)較(jiao)小(xiao)、梯(ti)(ti)段(duan)板(ban)(ban)跨度一(yi)般不大(da)于3m的(de)情況。