<span><span style、" font-family: 宋体;">承载力高、刚度大</span></span>
<span><span style、" font-family: 宋体;">耐火耐久性好</span></span>
<span><span style、" font-family: 宋体;">施工周期短</span></span>
<span><span style、" font-family: 宋体;">施工周期长</span></span>
<span><span style、" font-family: 宋体;">自重大、构件断面大</span></span>