按結構形式和受力特點樓(lou)梯形式可分為板式、梁式、懸挑(tiao)(剪(jian)刀)式和螺(luo)旋式，前兩種(zhong)屬于平(ping)面受力體(ti)系，后兩種(zhong)則為空間受力體(ti)系。

板(ban)(ban)(ban)式樓(lou)(lou)梯(ti)是(shi)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(shi)一(yi)塊帶踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承于上(shang)、下(xia)平(ping)臺(tai)梁上(shang)，底層下(xia)端支(zhi)承在地壟墻(qiang)上(shang)。板(ban)(ban)(ban)式樓(lou)(lou)梯(ti)的(de)優點是(shi)梯(ti)段(duan)板(ban)(ban)(ban)下(xia)表面平(ping)整，支(zhi)模簡單;其缺(que)點是(shi)梯(ti)段(duan)板(ban)(ban)(ban)跨度較大時，斜板(ban)(ban)(ban)厚度較大，結(jie)構(gou)材料用量(liang)較多。因此板(ban)(ban)(ban)式樓(lou)(lou)梯(ti)適(shi)用于可變荷載(zai)較小(xiao)、梯(ti)段(duan)板(ban)(ban)(ban)跨度一(yi)般不大于3m的(de)情(qing)況。