按結構(gou)形(xing)(xing)式(shi)和受力(li)特點樓梯形(xing)(xing)式(shi)可分(fen)為(wei)板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和螺旋(xuan)式(shi)，前兩種(zhong)屬(shu)于平(ping)面受力(li)體系，后兩種(zhong)則為(wei)空間(jian)受力(li)體系。

板(ban)(ban)式樓梯(ti)(ti)(ti)是由梯(ti)(ti)(ti)段(duan)板(ban)(ban)、平臺板(ban)(ban)和平臺梁(liang)組成。梯(ti)(ti)(ti)段(duan)板(ban)(ban)是一(yi)塊帶(dai)踏步的斜板(ban)(ban)，斜板(ban)(ban)支(zhi)(zhi)承(cheng)于(yu)上(shang)(shang)、下(xia)平臺梁(liang)上(shang)(shang)，底(di)層下(xia)端支(zhi)(zhi)承(cheng)在地壟墻上(shang)(shang)。板(ban)(ban)式樓梯(ti)(ti)(ti)的優點(dian)是梯(ti)(ti)(ti)段(duan)板(ban)(ban)下(xia)表面(mian)平整，支(zhi)(zhi)模簡單;其缺點(dian)是梯(ti)(ti)(ti)段(duan)板(ban)(ban)跨度(du)較(jiao)大(da)時，斜板(ban)(ban)厚度(du)較(jiao)大(da)，結構材料用(yong)量較(jiao)多(duo)。因此(ci)板(ban)(ban)式樓梯(ti)(ti)(ti)適(shi)用(yong)于(yu)可變(bian)荷載較(jiao)小、梯(ti)(ti)(ti)段(duan)板(ban)(ban)跨度(du)一(yi)般不大(da)于(yu)3m的情況。