按結(jie)構形式(shi)和受力特點樓梯形式(shi)可分為板(ban)式(shi)、梁式(shi)、懸(xuan)挑(剪刀)式(shi)和螺旋(xuan)式(shi)，前(qian)兩種(zhong)屬(shu)于平面受力體(ti)系，后兩種(zhong)則為空(kong)間受力體(ti)系。

板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)(ti)是(shi)由梯(ti)(ti)(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)(ti)(ti)段板(ban)(ban)(ban)是(shi)一塊帶踏(ta)步的斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承于上(shang)、下(xia)平(ping)臺梁(liang)上(shang)，底(di)層下(xia)端支(zhi)承在地壟墻上(shang)。板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)(ti)的優點是(shi)梯(ti)(ti)(ti)(ti)段板(ban)(ban)(ban)下(xia)表(biao)面平(ping)整(zheng)，支(zhi)模(mo)簡單;其缺點是(shi)梯(ti)(ti)(ti)(ti)段板(ban)(ban)(ban)跨度(du)較(jiao)大(da)時，斜板(ban)(ban)(ban)厚度(du)較(jiao)大(da)，結構(gou)材料用量較(jiao)多(duo)。因此板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)(ti)適用于可變(bian)荷載較(jiao)小(xiao)、梯(ti)(ti)(ti)(ti)段板(ban)(ban)(ban)跨度(du)一般不大(da)于3m的情(qing)況(kuang)。