It is approved that external prestressing technology is effective,convenient and cost-saving for reinforcement of caisson floor and can realize high strength of steel strand.
结合加固工程,探讨体外预应力技术在混凝土井式楼盖加固工程中的应用,提出预应力加固方案和相应的设计计算方法。
If the good effect of steps is considered,the design of plate stairs will be more beautiful and economical.
根据截面抗弯刚度相等和应变能相等两个原则 ,将有踏步的变截面梯段板转化为等截面板 ,从理论上分析了踏步对梯段板抗弯刚度和变形的有利影响 ,并与试验结果进行了对比 结果表明 ,踏步对梯段板的抗弯刚度有较大影响 ,如能考虑这一影响 ,将使板式楼梯的设计更为轻巧、经
If good effect of steps and the restriction of platform beams and platform on the stiffness and deformation of plate stairs is considered, the thickness of plate can be decreased to 1/35～1/40 of the diagonal length of the plate, resulting more economica.
现浇钢筋混凝土板式楼梯的梯段板是有踏步的变截面板 ,设计时为简便起见 ,通常不考虑踏步的作用 ,板厚取值约为其斜长的 1 / 2 5～ 1 / 30。
Economic Analysis of Structural Scheme Used in Large-Span Cross Beam Floor;
混凝土大跨度井式楼盖结构方案的技术经济比较
The Comparision of Several Large-span Cross-beam Floor Slab Laying Formats
大空间井字楼盖几种布置形式的比较分析
The design and analysis of the reinforced concrete phreatic beam floor
钢筋混凝土井字梁楼盖的分析和设计
Application Analysis of Reinforcement Concrete Grillage-shaped Beam in Construction
钢筋混凝土井字梁楼盖在某建筑中应用分析
Technical and Economic Analysis on Integral Assembly of Prefabricated Monolithic Floor
预制装配整体式楼盖的技术经济分析
On the crack cause of integral cast-in-site floor and its prevention and control
现浇整体式楼盖板裂缝的产生与防控
Theoretic Study on the Large-span Cast-in-situ Concrete Cellular Voided Floor;
大跨度蜂窝式现浇混凝土空心楼盖的理论分析
The Research on Whole Capability of Concrete Filled Steel Tube Frame Structure with Fabricated Floor;
装配式楼盖钢管砼框架体系的整体性能研究
Economic and Technical Analysis of Multi-storey Basement Floor Structural Systems
多层地下室楼盖结构形式经济技术综合分析
CONSTRUCTION AND ACCEPTANCE CHECK OF OVERHANGING LEAN-TO PRESTRESSED CAISSON BEAM SLAB ROOF
悬挑单坡预应力井式梁板屋盖结构施工及验收
Theoretical and Experimental Research on the Waffle Hollow-core Composited Floor
双向密肋装配整体式空心楼盖的试验和理论研究
Study of Load-bearing Properties of the Concrete Fabricated Hollow-ribbed Floor
混凝土双向密肋装配整体式空心楼盖的受力特性研究
In-plane deformation analysis of new-type precast assembly diaphragms in RC frame structures
RC框架结构中新型预制装配式楼盖面内变形分析
Construction Technology and Quality Control of Concrete Hollow Beamless Floor in Slab Conversion Layer
板式转换层现浇混凝土空心无梁楼盖施工技术与质量控制
Integral Cast in Place Method Used in Hollow-Core and Non-Beam Slab Construction
整体式现浇混凝土空心无梁楼盖在工程中的应用
Study on the Hydraulic Characteristics of Vertical Pipe Intake with Plate of the Pumped Storage Plant;
抽水蓄能电站盖板竖井式进/出水口水力特性研究
The lift is fitted in the centre of the stairwell .
楼梯井中安装了电梯。
down the steps to the well.
下楼梯，走到水井边，