按結構(gou)形式(shi)和受(shou)(shou)力(li)特點(dian)樓梯形式(shi)可(ke)分為板式(shi)、梁式(shi)、懸挑(剪刀)式(shi)和螺(luo)旋式(shi)，前(qian)兩種屬(shu)于平面受(shou)(shou)力(li)體(ti)系，后兩種則為空間受(shou)(shou)力(li)體(ti)系。

板(ban)(ban)式(shi)樓梯(ti)是(shi)由梯(ti)段板(ban)(ban)、平(ping)臺板(ban)(ban)和平(ping)臺梁(liang)組成。梯(ti)段板(ban)(ban)是(shi)一塊帶踏步(bu)的斜板(ban)(ban)，斜板(ban)(ban)支承(cheng)于(yu)上、下平(ping)臺梁(liang)上，底層下端支承(cheng)在地壟(long)墻(qiang)上。板(ban)(ban)式(shi)樓梯(ti)的優點是(shi)梯(ti)段板(ban)(ban)下表面平(ping)整，支模簡單(dan);其缺點是(shi)梯(ti)段板(ban)(ban)跨(kua)度較(jiao)大(da)時，斜板(ban)(ban)厚(hou)度較(jiao)大(da)，結(jie)構(gou)材料(liao)用量較(jiao)多。因(yin)此板(ban)(ban)式(shi)樓梯(ti)適用于(yu)可變(bian)荷載(zai)較(jiao)小、梯(ti)段板(ban)(ban)跨(kua)度一般不大(da)于(yu)3m的情況(kuang)。