预应力无梁空心楼盖技术在大型超长地下车库中的应用

Technology of Prestressed Concrete Hollow Floor without Beam used in Ultra Long Basement Parking

文章主要介绍了在地下车库顶板中采用BDF无机阻燃型复合箱体成孔的无梁空心楼盖技术,以及采取后张法预应力技术解决超长地下室结构的混凝土收缩及温度应力问题。

The paper mainly introduces the technolgy of prestressed concrete hollow floor without beam used in top plate of ultra long basement,the no beam floor was made of hollow BDF inorganic fire-resistant box , the prestress was used to resist concrete shrink and temperature stress of the ultra long basement structure.