按結構形式(shi)(shi)和受力特點(dian)樓梯(ti)形式(shi)(shi)可分(fen)為(wei)板式(shi)(shi)、梁式(shi)(shi)、懸(xuan)挑(剪刀)式(shi)(shi)和螺旋(xuan)式(shi)(shi)，前兩種屬于平面受力體系，后兩種則為(wei)空間受力體系。

板(ban)(ban)(ban)式樓(lou)梯(ti)是由梯(ti)段(duan)板(ban)(ban)(ban)、平(ping)臺(tai)板(ban)(ban)(ban)和平(ping)臺(tai)梁組成。梯(ti)段(duan)板(ban)(ban)(ban)是一塊(kuai)帶踏步的斜(xie)板(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)支(zhi)(zhi)承(cheng)于上、下(xia)平(ping)臺(tai)梁上，底層下(xia)端支(zhi)(zhi)承(cheng)在地壟(long)墻(qiang)上。板(ban)(ban)(ban)式樓(lou)梯(ti)的優點(dian)是梯(ti)段(duan)板(ban)(ban)(ban)下(xia)表面(mian)平(ping)整，支(zhi)(zhi)模(mo)簡單;其缺點(dian)是梯(ti)段(duan)板(ban)(ban)(ban)跨度(du)較(jiao)大(da)時，斜(xie)板(ban)(ban)(ban)厚度(du)較(jiao)大(da)，結構(gou)材料用量較(jiao)多。因此板(ban)(ban)(ban)式樓(lou)梯(ti)適(shi)用于可變荷(he)載較(jiao)小、梯(ti)段(duan)板(ban)(ban)(ban)跨度(du)一般(ban)不(bu)大(da)于3m的情況。