按結構形式(shi)(shi)和受力(li)特點(dian)樓梯形式(shi)(shi)可分為板(ban)式(shi)(shi)、梁式(shi)(shi)、懸挑(剪(jian)刀)式(shi)(shi)和螺旋式(shi)(shi)，前兩(liang)(liang)種屬(shu)于平面受力(li)體系(xi)，后兩(liang)(liang)種則(ze)為空間(jian)受力(li)體系(xi)。

板(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)是由梯(ti)(ti)段(duan)板(ban)(ban)、平臺(tai)(tai)板(ban)(ban)和(he)平臺(tai)(tai)梁組成。梯(ti)(ti)段(duan)板(ban)(ban)是一塊帶踏(ta)步的(de)斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承(cheng)于(yu)上(shang)(shang)(shang)、下(xia)平臺(tai)(tai)梁上(shang)(shang)(shang)，底層下(xia)端支承(cheng)在(zai)地壟墻上(shang)(shang)(shang)。板(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)的(de)優點(dian)是梯(ti)(ti)段(duan)板(ban)(ban)下(xia)表(biao)面(mian)平整(zheng)，支模(mo)簡單(dan);其缺(que)點(dian)是梯(ti)(ti)段(duan)板(ban)(ban)跨度(du)(du)較大(da)(da)(da)時(shi)，斜(xie)板(ban)(ban)厚度(du)(du)較大(da)(da)(da)，結構材料用量較多。因此板(ban)(ban)式(shi)(shi)樓(lou)梯(ti)(ti)適(shi)用于(yu)可變荷載較小、梯(ti)(ti)段(duan)板(ban)(ban)跨度(du)(du)一般不(bu)大(da)(da)(da)于(yu)3m的(de)情況(kuang)。