按(an)結構形式和受力(li)(li)特(te)點樓梯(ti)形式可(ke)分為板式、梁式、懸(xuan)挑(剪刀)式和螺旋(xuan)式，前兩種屬于(yu)平面(mian)受力(li)(li)體系(xi)，后兩種則為空(kong)間受力(li)(li)體系(xi)。

板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)是(shi)由梯(ti)(ti)(ti)段(duan)板(ban)(ban)、平(ping)臺板(ban)(ban)和平(ping)臺梁組成。梯(ti)(ti)(ti)段(duan)板(ban)(ban)是(shi)一塊帶踏步的斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支承于上(shang)(shang)、下(xia)平(ping)臺梁上(shang)(shang)，底層(ceng)下(xia)端支承在地壟墻上(shang)(shang)。板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)的優(you)點是(shi)梯(ti)(ti)(ti)段(duan)板(ban)(ban)下(xia)表面平(ping)整，支模(mo)簡單;其缺點是(shi)梯(ti)(ti)(ti)段(duan)板(ban)(ban)跨(kua)度較(jiao)大(da)時(shi)，斜(xie)板(ban)(ban)厚度較(jiao)大(da)，結構材料用量(liang)較(jiao)多。因(yin)此板(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)適(shi)用于可(ke)變荷載較(jiao)小、梯(ti)(ti)(ti)段(duan)板(ban)(ban)跨(kua)度一般(ban)不大(da)于3m的情況。