按結構(gou)形(xing)式(shi)(shi)和(he)受力(li)特點樓(lou)梯(ti)形(xing)式(shi)(shi)可(ke)分為板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪刀)式(shi)(shi)和(he)螺(luo)旋式(shi)(shi)，前兩(liang)種屬于平面(mian)受力(li)體系(xi)，后兩(liang)種則(ze)為空間受力(li)體系(xi)。

板(ban)(ban)式(shi)樓梯(ti)(ti)是(shi)(shi)由梯(ti)(ti)段(duan)板(ban)(ban)、平(ping)臺(tai)板(ban)(ban)和平(ping)臺(tai)梁(liang)組成。梯(ti)(ti)段(duan)板(ban)(ban)是(shi)(shi)一塊帶踏(ta)步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于(yu)上(shang)、下(xia)平(ping)臺(tai)梁(liang)上(shang)，底層(ceng)下(xia)端支承在地(di)壟墻上(shang)。板(ban)(ban)式(shi)樓梯(ti)(ti)的優點(dian)是(shi)(shi)梯(ti)(ti)段(duan)板(ban)(ban)下(xia)表面平(ping)整，支模簡單;其缺點(dian)是(shi)(shi)梯(ti)(ti)段(duan)板(ban)(ban)跨度較(jiao)大時(shi)，斜(xie)板(ban)(ban)厚度較(jiao)大，結構材(cai)料用量(liang)較(jiao)多。因此板(ban)(ban)式(shi)樓梯(ti)(ti)適用于(yu)可變荷載較(jiao)小、梯(ti)(ti)段(duan)板(ban)(ban)跨度一般不大于(yu)3m的情況。