按結構形式(shi)(shi)和受力特點樓(lou)梯形式(shi)(shi)可分為板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪刀)式(shi)(shi)和螺旋式(shi)(shi)，前兩(liang)種屬(shu)于平面受力體系(xi)，后兩(liang)種則為空間受力體系(xi)。

板(ban)(ban)(ban)(ban)式樓(lou)梯是(shi)由梯段(duan)板(ban)(ban)(ban)(ban)、平(ping)(ping)臺板(ban)(ban)(ban)(ban)和平(ping)(ping)臺梁(liang)(liang)組成。梯段(duan)板(ban)(ban)(ban)(ban)是(shi)一(yi)塊帶(dai)踏步的斜板(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)支承于上(shang)(shang)、下(xia)平(ping)(ping)臺梁(liang)(liang)上(shang)(shang)，底層下(xia)端支承在(zai)地(di)壟墻上(shang)(shang)。板(ban)(ban)(ban)(ban)式樓(lou)梯的優點是(shi)梯段(duan)板(ban)(ban)(ban)(ban)下(xia)表面(mian)平(ping)(ping)整，支模(mo)簡(jian)單;其缺點是(shi)梯段(duan)板(ban)(ban)(ban)(ban)跨度較(jiao)大時(shi)，斜板(ban)(ban)(ban)(ban)厚度較(jiao)大，結構(gou)材料用量較(jiao)多(duo)。因(yin)此(ci)板(ban)(ban)(ban)(ban)式樓(lou)梯適用于可(ke)變荷載(zai)較(jiao)小、梯段(duan)板(ban)(ban)(ban)(ban)跨度一(yi)般不大于3m的情況。