按結構(gou)形(xing)式(shi)和(he)受力(li)特點樓梯形(xing)式(shi)可分為(wei)板式(shi)、梁(liang)式(shi)、懸挑(剪刀)式(shi)和(he)螺旋式(shi)，前兩種屬于平(ping)面受力(li)體(ti)系，后兩種則為(wei)空(kong)間受力(li)體(ti)系。

板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)(ti)是由(you)梯(ti)(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)、平(ping)臺板(ban)(ban)(ban)和平(ping)臺梁組成。梯(ti)(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)是一(yi)塊帶踏步的(de)斜板(ban)(ban)(ban)，斜板(ban)(ban)(ban)支(zhi)承于(yu)上、下(xia)平(ping)臺梁上，底層(ceng)下(xia)端(duan)支(zhi)承在地壟(long)墻(qiang)上。板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)(ti)的(de)優點是梯(ti)(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)下(xia)表面(mian)平(ping)整，支(zhi)模簡單;其缺點是梯(ti)(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨度較大(da)時，斜板(ban)(ban)(ban)厚(hou)度較大(da)，結構材料用(yong)量較多。因此板(ban)(ban)(ban)式(shi)樓(lou)梯(ti)(ti)(ti)(ti)適(shi)用(yong)于(yu)可變荷載較小、梯(ti)(ti)(ti)(ti)段(duan)(duan)板(ban)(ban)(ban)跨度一(yi)般不大(da)于(yu)3m的(de)情況。