按結構(gou)形式(shi)和受(shou)(shou)力特點樓(lou)梯(ti)形式(shi)可分為(wei)板式(shi)、梁式(shi)、懸挑(tiao)(剪(jian)刀)式(shi)和螺旋(xuan)式(shi)，前兩種屬于平面受(shou)(shou)力體(ti)系(xi)(xi)，后(hou)兩種則為(wei)空間(jian)受(shou)(shou)力體(ti)系(xi)(xi)。

板(ban)(ban)式樓梯(ti)是由梯(ti)段(duan)板(ban)(ban)、平(ping)臺(tai)板(ban)(ban)和平(ping)臺(tai)梁(liang)組成(cheng)。梯(ti)段(duan)板(ban)(ban)是一塊帶踏步的(de)斜板(ban)(ban)，斜板(ban)(ban)支承于(yu)(yu)上、下平(ping)臺(tai)梁(liang)上，底(di)層(ceng)下端支承在地壟墻(qiang)上。板(ban)(ban)式樓梯(ti)的(de)優(you)點是梯(ti)段(duan)板(ban)(ban)下表面平(ping)整(zheng)，支模(mo)簡單;其缺點是梯(ti)段(duan)板(ban)(ban)跨度較(jiao)大(da)(da)(da)時(shi)，斜板(ban)(ban)厚度較(jiao)大(da)(da)(da)，結構材料用(yong)量較(jiao)多。因此板(ban)(ban)式樓梯(ti)適用(yong)于(yu)(yu)可變荷載較(jiao)小、梯(ti)段(duan)板(ban)(ban)跨度一般(ban)不大(da)(da)(da)于(yu)(yu)3m的(de)情況。