按結構形式(shi)和受(shou)(shou)力(li)特(te)點樓梯形式(shi)可分(fen)為板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和螺(luo)旋式(shi)，前兩種(zhong)屬于平(ping)面受(shou)(shou)力(li)體系，后兩種(zhong)則為空(kong)間(jian)受(shou)(shou)力(li)體系。

板(ban)(ban)(ban)式樓梯(ti)(ti)(ti)是由梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)、平(ping)臺(tai)(tai)板(ban)(ban)(ban)和平(ping)臺(tai)(tai)梁(liang)組成。梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)是一塊帶踏(ta)步的斜(xie)(xie)板(ban)(ban)(ban)，斜(xie)(xie)板(ban)(ban)(ban)支承(cheng)于(yu)(yu)上(shang)、下(xia)(xia)平(ping)臺(tai)(tai)梁(liang)上(shang)，底層(ceng)下(xia)(xia)端支承(cheng)在地壟(long)墻上(shang)。板(ban)(ban)(ban)式樓梯(ti)(ti)(ti)的優點(dian)是梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)下(xia)(xia)表面(mian)平(ping)整，支模簡單;其缺點(dian)是梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)跨度較大(da)時，斜(xie)(xie)板(ban)(ban)(ban)厚度較大(da)，結(jie)構(gou)材料用量(liang)較多(duo)。因此板(ban)(ban)(ban)式樓梯(ti)(ti)(ti)適用于(yu)(yu)可變荷載較小、梯(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)跨度一般不大(da)于(yu)(yu)3m的情況。