按結構形式(shi)(shi)(shi)和(he)受力(li)特點(dian)樓梯形式(shi)(shi)(shi)可分(fen)為板式(shi)(shi)(shi)、梁(liang)式(shi)(shi)(shi)、懸挑(剪(jian)刀(dao))式(shi)(shi)(shi)和(he)螺(luo)旋式(shi)(shi)(shi)，前兩種屬于平面受力(li)體(ti)系(xi)，后兩種則為空間受力(li)體(ti)系(xi)。

板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)是(shi)(shi)由梯(ti)(ti)段板(ban)(ban)(ban)(ban)、平(ping)臺(tai)(tai)板(ban)(ban)(ban)(ban)和平(ping)臺(tai)(tai)梁(liang)組成。梯(ti)(ti)段板(ban)(ban)(ban)(ban)是(shi)(shi)一塊帶(dai)踏步的(de)斜(xie)板(ban)(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)(ban)支承(cheng)于(yu)(yu)上(shang)、下平(ping)臺(tai)(tai)梁(liang)上(shang)，底層(ceng)下端(duan)支承(cheng)在(zai)地壟墻上(shang)。板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)的(de)優點(dian)是(shi)(shi)梯(ti)(ti)段板(ban)(ban)(ban)(ban)下表(biao)面平(ping)整(zheng)，支模簡(jian)單;其缺點(dian)是(shi)(shi)梯(ti)(ti)段板(ban)(ban)(ban)(ban)跨度較(jiao)(jiao)大時，斜(xie)板(ban)(ban)(ban)(ban)厚度較(jiao)(jiao)大，結構材料(liao)用量較(jiao)(jiao)多。因此板(ban)(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)適用于(yu)(yu)可(ke)變荷載(zai)較(jiao)(jiao)小(xiao)、梯(ti)(ti)段板(ban)(ban)(ban)(ban)跨度一般不大于(yu)(yu)3m的(de)情況。