按(an)結構形式(shi)和(he)(he)受(shou)力特點樓梯形式(shi)可分為板(ban)式(shi)、梁式(shi)、懸(xuan)挑(剪(jian)刀)式(shi)和(he)(he)螺(luo)旋式(shi)，前兩(liang)種屬于平面受(shou)力體(ti)(ti)系，后(hou)兩(liang)種則為空(kong)間(jian)受(shou)力體(ti)(ti)系。

板(ban)(ban)(ban)式(shi)樓(lou)(lou)梯(ti)是(shi)(shi)(shi)由梯(ti)段(duan)(duan)板(ban)(ban)(ban)、平(ping)臺(tai)(tai)板(ban)(ban)(ban)和(he)平(ping)臺(tai)(tai)梁組成。梯(ti)段(duan)(duan)板(ban)(ban)(ban)是(shi)(shi)(shi)一塊帶踏(ta)步的(de)斜(xie)板(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)支承(cheng)于(yu)上、下(xia)(xia)平(ping)臺(tai)(tai)梁上，底層下(xia)(xia)端支承(cheng)在(zai)地壟(long)墻(qiang)上。板(ban)(ban)(ban)式(shi)樓(lou)(lou)梯(ti)的(de)優點是(shi)(shi)(shi)梯(ti)段(duan)(duan)板(ban)(ban)(ban)下(xia)(xia)表面平(ping)整，支模(mo)簡(jian)單;其缺點是(shi)(shi)(shi)梯(ti)段(duan)(duan)板(ban)(ban)(ban)跨(kua)度(du)(du)較大(da)時(shi)，斜(xie)板(ban)(ban)(ban)厚度(du)(du)較大(da)，結構(gou)材(cai)料用(yong)量較多(duo)。因此(ci)板(ban)(ban)(ban)式(shi)樓(lou)(lou)梯(ti)適用(yong)于(yu)可(ke)變荷載較小、梯(ti)段(duan)(duan)板(ban)(ban)(ban)跨(kua)度(du)(du)一般不大(da)于(yu)3m的(de)情況。