按結(jie)構形式(shi)(shi)(shi)和受(shou)力特點樓梯(ti)形式(shi)(shi)(shi)可分為(wei)板式(shi)(shi)(shi)、梁式(shi)(shi)(shi)、懸挑(剪刀)式(shi)(shi)(shi)和螺旋式(shi)(shi)(shi)，前兩(liang)種屬于平面受(shou)力體系，后(hou)兩(liang)種則為(wei)空間受(shou)力體系。

板(ban)(ban)式(shi)樓(lou)(lou)梯是由(you)梯段(duan)板(ban)(ban)、平(ping)(ping)臺板(ban)(ban)和平(ping)(ping)臺梁(liang)組成。梯段(duan)板(ban)(ban)是一塊(kuai)帶踏步(bu)的(de)斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支(zhi)承于(yu)上、下(xia)平(ping)(ping)臺梁(liang)上，底(di)層下(xia)端支(zhi)承在地壟墻上。板(ban)(ban)式(shi)樓(lou)(lou)梯的(de)優點(dian)是梯段(duan)板(ban)(ban)下(xia)表面(mian)平(ping)(ping)整，支(zhi)模(mo)簡單(dan);其缺點(dian)是梯段(duan)板(ban)(ban)跨(kua)(kua)度(du)較大(da)(da)時，斜(xie)板(ban)(ban)厚度(du)較大(da)(da)，結(jie)構(gou)材(cai)料用量較多。因此(ci)板(ban)(ban)式(shi)樓(lou)(lou)梯適用于(yu)可變荷載較小、梯段(duan)板(ban)(ban)跨(kua)(kua)度(du)一般(ban)不大(da)(da)于(yu)3m的(de)情況。