按結構(gou)形(xing)式和(he)受力特點樓梯形(xing)式可分為(wei)板式、梁式、懸挑(剪刀)式和(he)螺旋式，前兩種屬于(yu)平(ping)面受力體系，后(hou)兩種則為(wei)空間受力體系。

板(ban)(ban)(ban)式樓梯(ti)(ti)是(shi)由梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)和平(ping)臺梁組成。梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)(ban)是(shi)一塊(kuai)帶踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支承(cheng)于(yu)(yu)上、下平(ping)臺梁上，底層下端支承(cheng)在地壟(long)墻(qiang)上。板(ban)(ban)(ban)式樓梯(ti)(ti)的(de)優點(dian)是(shi)梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)(ban)下表(biao)面平(ping)整(zheng)，支模簡單;其缺(que)點(dian)是(shi)梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)(ban)跨度(du)較大(da)時(shi)，斜板(ban)(ban)(ban)厚度(du)較大(da)，結構材(cai)料(liao)用(yong)量較多。因此板(ban)(ban)(ban)式樓梯(ti)(ti)適用(yong)于(yu)(yu)可變荷載(zai)較小(xiao)、梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)(ban)跨度(du)一般(ban)不(bu)大(da)于(yu)(yu)3m的(de)情況。