按(an)結(jie)構形式(shi)(shi)和(he)受(shou)力特(te)點樓梯形式(shi)(shi)可分為板式(shi)(shi)、梁式(shi)(shi)、懸挑(tiao)(剪(jian)刀)式(shi)(shi)和(he)螺旋(xuan)式(shi)(shi)，前兩種屬(shu)于平面受(shou)力體(ti)(ti)系，后兩種則為空間受(shou)力體(ti)(ti)系。

板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)(ti)(ti)是(shi)(shi)由梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)和平(ping)臺梁組成。梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)是(shi)(shi)一塊帶踏步的斜(xie)(xie)板(ban)(ban)(ban)，斜(xie)(xie)板(ban)(ban)(ban)支(zhi)承(cheng)于(yu)上(shang)、下(xia)平(ping)臺梁上(shang)，底層下(xia)端支(zhi)承(cheng)在地(di)壟墻(qiang)上(shang)。板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)(ti)(ti)的優點是(shi)(shi)梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)下(xia)表(biao)面平(ping)整(zheng)，支(zhi)模簡(jian)單(dan);其(qi)缺點是(shi)(shi)梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)跨(kua)度較(jiao)(jiao)大時，斜(xie)(xie)板(ban)(ban)(ban)厚度較(jiao)(jiao)大，結構材料用量較(jiao)(jiao)多(duo)。因此板(ban)(ban)(ban)式樓(lou)梯(ti)(ti)(ti)(ti)適用于(yu)可(ke)變荷載較(jiao)(jiao)小、梯(ti)(ti)(ti)(ti)段(duan)板(ban)(ban)(ban)跨(kua)度一般不大于(yu)3m的情況。