按結構形式(shi)(shi)和受力特(te)點樓(lou)梯(ti)形式(shi)(shi)可分為(wei)(wei)板式(shi)(shi)、梁式(shi)(shi)、懸挑(剪(jian)刀(dao))式(shi)(shi)和螺旋式(shi)(shi)，前兩種屬于平面受力體(ti)系，后兩種則(ze)為(wei)(wei)空(kong)間受力體(ti)系。

板(ban)(ban)式樓(lou)梯(ti)(ti)是由梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)、平(ping)臺板(ban)(ban)和(he)平(ping)臺梁(liang)(liang)組成(cheng)。梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)是一(yi)塊帶踏步的(de)斜(xie)板(ban)(ban)，斜(xie)板(ban)(ban)支(zhi)(zhi)承于上(shang)、下平(ping)臺梁(liang)(liang)上(shang)，底(di)層下端支(zhi)(zhi)承在(zai)地壟墻上(shang)。板(ban)(ban)式樓(lou)梯(ti)(ti)的(de)優點(dian)(dian)是梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)下表面平(ping)整，支(zhi)(zhi)模簡單;其缺點(dian)(dian)是梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)跨度較(jiao)(jiao)(jiao)大(da)時(shi)，斜(xie)板(ban)(ban)厚(hou)度較(jiao)(jiao)(jiao)大(da)，結(jie)構材料用(yong)量較(jiao)(jiao)(jiao)多。因此板(ban)(ban)式樓(lou)梯(ti)(ti)適(shi)用(yong)于可變(bian)荷載較(jiao)(jiao)(jiao)小、梯(ti)(ti)段(duan)(duan)(duan)板(ban)(ban)跨度一(yi)般不大(da)于3m的(de)情況(kuang)。