按結(jie)構形式(shi)和受(shou)力(li)特點樓梯形式(shi)可(ke)分為(wei)板(ban)式(shi)、梁式(shi)、懸挑(剪(jian)刀(dao))式(shi)和螺旋式(shi)，前(qian)兩(liang)種屬(shu)于平面(mian)受(shou)力(li)體(ti)系(xi)，后兩(liang)種則為(wei)空間受(shou)力(li)體(ti)系(xi)。

板(ban)(ban)(ban)(ban)(ban)式(shi)樓梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)、平(ping)(ping)臺(tai)板(ban)(ban)(ban)(ban)(ban)和平(ping)(ping)臺(tai)梁組(zu)成。梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)是(shi)一(yi)塊帶踏步的(de)(de)斜板(ban)(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)(ban)支(zhi)承于(yu)上(shang)、下平(ping)(ping)臺(tai)梁上(shang)，底層下端(duan)支(zhi)承在地(di)壟墻上(shang)。板(ban)(ban)(ban)(ban)(ban)式(shi)樓梯(ti)(ti)的(de)(de)優點(dian)(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)下表面平(ping)(ping)整，支(zhi)模簡單;其缺點(dian)(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)跨(kua)度較大時，斜板(ban)(ban)(ban)(ban)(ban)厚度較大，結構材(cai)料用(yong)量較多(duo)。因(yin)此(ci)板(ban)(ban)(ban)(ban)(ban)式(shi)樓梯(ti)(ti)適用(yong)于(yu)可變(bian)荷載較小、梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)(ban)跨(kua)度一(yi)般(ban)不大于(yu)3m的(de)(de)情況。