按結構形(xing)式(shi)和受力特點(dian)樓梯(ti)形(xing)式(shi)可分為(wei)板式(shi)、梁(liang)式(shi)、懸挑(剪刀)式(shi)和螺(luo)旋(xuan)式(shi)，前兩種屬于平面受力體系(xi)，后兩種則為(wei)空間受力體系(xi)。

板(ban)(ban)式樓(lou)梯(ti)(ti)(ti)是(shi)由梯(ti)(ti)(ti)段板(ban)(ban)、平(ping)臺板(ban)(ban)和平(ping)臺梁組成(cheng)。梯(ti)(ti)(ti)段板(ban)(ban)是(shi)一塊(kuai)帶踏步的斜(xie)(xie)(xie)板(ban)(ban)，斜(xie)(xie)(xie)板(ban)(ban)支(zhi)承于上(shang)、下(xia)平(ping)臺梁上(shang)，底層下(xia)端支(zhi)承在地壟(long)墻上(shang)。板(ban)(ban)式樓(lou)梯(ti)(ti)(ti)的優點是(shi)梯(ti)(ti)(ti)段板(ban)(ban)下(xia)表面平(ping)整，支(zhi)模簡(jian)單;其缺點是(shi)梯(ti)(ti)(ti)段板(ban)(ban)跨度(du)較大時，斜(xie)(xie)(xie)板(ban)(ban)厚度(du)較大，結(jie)構(gou)材料(liao)用量較多。因此(ci)板(ban)(ban)式樓(lou)梯(ti)(ti)(ti)適(shi)用于可變(bian)荷載較小(xiao)、梯(ti)(ti)(ti)段板(ban)(ban)跨度(du)一般不大于3m的情況。