按結構形式(shi)和受(shou)力特點樓梯形式(shi)可分為(wei)板式(shi)、梁式(shi)、懸挑(剪(jian)刀)式(shi)和螺旋式(shi)，前兩種屬于平(ping)面受(shou)力體系(xi)，后(hou)兩種則為(wei)空(kong)間受(shou)力體系(xi)。

板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)是(shi)由梯(ti)(ti)段板(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)和平(ping)臺梁(liang)組成。梯(ti)(ti)段板(ban)(ban)(ban)是(shi)一塊帶(dai)踏(ta)步的斜(xie)板(ban)(ban)(ban)，斜(xie)板(ban)(ban)(ban)支承(cheng)于上(shang)、下平(ping)臺梁(liang)上(shang)，底層(ceng)下端支承(cheng)在(zai)地壟墻上(shang)。板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)的優點(dian)是(shi)梯(ti)(ti)段板(ban)(ban)(ban)下表面平(ping)整，支模簡單;其缺點(dian)是(shi)梯(ti)(ti)段板(ban)(ban)(ban)跨度較(jiao)大(da)時，斜(xie)板(ban)(ban)(ban)厚度較(jiao)大(da)，結構材(cai)料用量較(jiao)多(duo)。因此板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)適用于可變荷載(zai)較(jiao)小、梯(ti)(ti)段板(ban)(ban)(ban)跨度一般不(bu)大(da)于3m的情(qing)況。