按結(jie)構形式(shi)和受力特(te)點樓梯形式(shi)可(ke)分為(wei)板式(shi)、梁式(shi)、懸挑(tiao)(剪刀(dao))式(shi)和螺旋式(shi)，前兩(liang)種屬于平面受力體(ti)系(xi)，后兩(liang)種則為(wei)空間(jian)受力體(ti)系(xi)。

板(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)是由梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)和(he)平(ping)臺梁組成。梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)是一塊(kuai)帶(dai)踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支承(cheng)于(yu)上(shang)、下(xia)平(ping)臺梁上(shang)，底層(ceng)下(xia)端支承(cheng)在地壟墻上(shang)。板(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)的(de)優點是梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)下(xia)表(biao)面平(ping)整，支模簡(jian)單;其缺點是梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨度(du)較(jiao)大(da)(da)時，斜板(ban)(ban)(ban)厚度(du)較(jiao)大(da)(da)，結構材料用量較(jiao)多(duo)。因此板(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)適用于(yu)可變荷載較(jiao)小、梯(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨度(du)一般不(bu)大(da)(da)于(yu)3m的(de)情(qing)況。