按(an)結(jie)構形式(shi)和受(shou)力(li)特點樓梯形式(shi)可分為(wei)板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和螺(luo)旋式(shi)，前兩種屬于平面受(shou)力(li)體(ti)系，后兩種則為(wei)空間受(shou)力(li)體(ti)系。

板(ban)(ban)式樓梯(ti)(ti)(ti)是(shi)由(you)梯(ti)(ti)(ti)段(duan)板(ban)(ban)、平臺(tai)(tai)板(ban)(ban)和平臺(tai)(tai)梁組成(cheng)。梯(ti)(ti)(ti)段(duan)板(ban)(ban)是(shi)一塊帶踏(ta)步的斜板(ban)(ban)，斜板(ban)(ban)支(zhi)承于上(shang)、下平臺(tai)(tai)梁上(shang)，底層下端支(zhi)承在(zai)地(di)壟墻(qiang)上(shang)。板(ban)(ban)式樓梯(ti)(ti)(ti)的優點是(shi)梯(ti)(ti)(ti)段(duan)板(ban)(ban)下表面平整，支(zhi)模簡單;其缺點是(shi)梯(ti)(ti)(ti)段(duan)板(ban)(ban)跨度較(jiao)(jiao)大(da)時，斜板(ban)(ban)厚度較(jiao)(jiao)大(da)，結構材料用(yong)量較(jiao)(jiao)多。因此板(ban)(ban)式樓梯(ti)(ti)(ti)適用(yong)于可(ke)變(bian)荷載較(jiao)(jiao)小、梯(ti)(ti)(ti)段(duan)板(ban)(ban)跨度一般不(bu)大(da)于3m的情況。