按(an)結(jie)構形式(shi)(shi)和受(shou)力特點樓梯(ti)形式(shi)(shi)可分為板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪(jian)刀)式(shi)(shi)和螺旋式(shi)(shi)，前兩種(zhong)屬于平面受(shou)力體系，后兩種(zhong)則為空間(jian)受(shou)力體系。

板(ban)(ban)(ban)式樓梯(ti)(ti)(ti)是由梯(ti)(ti)(ti)段板(ban)(ban)(ban)、平臺(tai)板(ban)(ban)(ban)和平臺(tai)梁組成。梯(ti)(ti)(ti)段板(ban)(ban)(ban)是一塊帶踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支承于上、下平臺(tai)梁上，底層下端(duan)支承在地壟墻上。板(ban)(ban)(ban)式樓梯(ti)(ti)(ti)的(de)優(you)點(dian)是梯(ti)(ti)(ti)段板(ban)(ban)(ban)下表(biao)面(mian)平整，支模簡(jian)單;其缺點(dian)是梯(ti)(ti)(ti)段板(ban)(ban)(ban)跨(kua)度較(jiao)大(da)(da)時，斜板(ban)(ban)(ban)厚度較(jiao)大(da)(da)，結構材料用(yong)量較(jiao)多(duo)。因此板(ban)(ban)(ban)式樓梯(ti)(ti)(ti)適用(yong)于可變荷(he)載較(jiao)小(xiao)、梯(ti)(ti)(ti)段板(ban)(ban)(ban)跨(kua)度一般不大(da)(da)于3m的(de)情況(kuang)。