按結構(gou)形式和受力(li)特點樓梯(ti)形式可分為板式、梁式、懸挑(剪刀)式和螺(luo)旋式，前兩種(zhong)屬于平面受力(li)體(ti)系，后兩種(zhong)則為空(kong)間受力(li)體(ti)系。

板(ban)(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)是(shi)由(you)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)、平臺(tai)(tai)板(ban)(ban)(ban)(ban)和平臺(tai)(tai)梁組成。梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)是(shi)一塊帶踏步的(de)斜板(ban)(ban)(ban)(ban)，斜板(ban)(ban)(ban)(ban)支承(cheng)于上(shang)、下(xia)平臺(tai)(tai)梁上(shang)，底(di)層(ceng)下(xia)端支承(cheng)在地(di)壟墻上(shang)。板(ban)(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)的(de)優(you)點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)下(xia)表面平整，支模簡單(dan);其缺點(dian)是(shi)梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨度(du)較大(da)時，斜板(ban)(ban)(ban)(ban)厚度(du)較大(da)，結(jie)構材料用量較多。因此(ci)板(ban)(ban)(ban)(ban)式樓(lou)(lou)梯(ti)(ti)適用于可變荷(he)載較小(xiao)、梯(ti)(ti)段(duan)板(ban)(ban)(ban)(ban)跨度(du)一般不大(da)于3m的(de)情(qing)況(kuang)。