按結構形式和受(shou)力(li)特點樓梯形式可(ke)分為板式、梁式、懸(xuan)挑(tiao)(剪刀)式和螺旋式，前(qian)兩種(zhong)屬于(yu)平面(mian)受(shou)力(li)體系，后(hou)兩種(zhong)則(ze)為空(kong)間受(shou)力(li)體系。

板(ban)(ban)式樓梯(ti)是(shi)由梯(ti)段板(ban)(ban)、平(ping)臺(tai)(tai)板(ban)(ban)和平(ping)臺(tai)(tai)梁組成。梯(ti)段板(ban)(ban)是(shi)一塊(kuai)帶踏步的(de)斜板(ban)(ban)，斜板(ban)(ban)支(zhi)承(cheng)于上(shang)(shang)、下(xia)平(ping)臺(tai)(tai)梁上(shang)(shang)，底層(ceng)下(xia)端支(zhi)承(cheng)在(zai)地(di)壟墻上(shang)(shang)。板(ban)(ban)式樓梯(ti)的(de)優點是(shi)梯(ti)段板(ban)(ban)下(xia)表面平(ping)整(zheng)，支(zhi)模(mo)簡單;其(qi)缺點是(shi)梯(ti)段板(ban)(ban)跨度(du)(du)較(jiao)(jiao)大(da)(da)時，斜板(ban)(ban)厚(hou)度(du)(du)較(jiao)(jiao)大(da)(da)，結構材料用量較(jiao)(jiao)多。因此(ci)板(ban)(ban)式樓梯(ti)適用于可變(bian)荷載較(jiao)(jiao)小、梯(ti)段板(ban)(ban)跨度(du)(du)一般不(bu)大(da)(da)于3m的(de)情況。