按結構(gou)形(xing)式和受力(li)(li)特點樓梯形(xing)式可分為(wei)板式、梁(liang)式、懸挑(剪(jian)刀)式和螺旋式，前兩(liang)種屬于平面受力(li)(li)體系(xi)，后兩(liang)種則為(wei)空間受力(li)(li)體系(xi)。

板(ban)(ban)式樓梯是(shi)由梯段(duan)(duan)(duan)板(ban)(ban)、平(ping)臺板(ban)(ban)和平(ping)臺梁組成。梯段(duan)(duan)(duan)板(ban)(ban)是(shi)一塊帶踏步(bu)的斜板(ban)(ban)，斜板(ban)(ban)支承(cheng)于上、下平(ping)臺梁上，底層下端支承(cheng)在地(di)壟墻上。板(ban)(ban)式樓梯的優點是(shi)梯段(duan)(duan)(duan)板(ban)(ban)下表面平(ping)整(zheng)，支模簡單;其缺(que)點是(shi)梯段(duan)(duan)(duan)板(ban)(ban)跨(kua)度較(jiao)大(da)時，斜板(ban)(ban)厚(hou)度較(jiao)大(da)，結構材(cai)料用量較(jiao)多。因(yin)此板(ban)(ban)式樓梯適(shi)用于可變荷載(zai)較(jiao)小、梯段(duan)(duan)(duan)板(ban)(ban)跨(kua)度一般不大(da)于3m的情況(kuang)。