按(an)結(jie)構形式(shi)(shi)和(he)受力(li)(li)特(te)點樓梯(ti)形式(shi)(shi)可分(fen)為板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪刀)式(shi)(shi)和(he)螺旋式(shi)(shi)，前兩(liang)種屬于平面受力(li)(li)體(ti)系，后兩(liang)種則為空(kong)間受力(li)(li)體(ti)系。

板(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)是由(you)梯(ti)(ti)段(duan)板(ban)(ban)、平臺(tai)板(ban)(ban)和平臺(tai)梁組成。梯(ti)(ti)段(duan)板(ban)(ban)是一塊(kuai)帶踏步的(de)斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承(cheng)于上、下平臺(tai)梁上，底層下端支承(cheng)在地壟墻上。板(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)的(de)優點(dian)是梯(ti)(ti)段(duan)板(ban)(ban)下表(biao)面平整，支模簡單;其缺點(dian)是梯(ti)(ti)段(duan)板(ban)(ban)跨度(du)較大(da)時，斜(xie)板(ban)(ban)厚度(du)較大(da)，結構材料用量較多(duo)。因(yin)此板(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)適(shi)用于可變荷載較小、梯(ti)(ti)段(duan)板(ban)(ban)跨度(du)一般不大(da)于3m的(de)情況。