Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Node structure for reducing shrinkage stress of super-long structure concrete and construction method
The invention discloses a node structure for reducing the shrinkage stress of super-long structural concrete and a construction method. At least one piece of supporting profile steel is arranged in a slow pouring section, and an upper structural body and a lower structural body are fixedly connected to the upper end and the lower end of the supporting profile steel in an inserted mode before the slow pouring section is poured; and the part, inserted into the upper structural body and the lower structural body, of the supporting profile steel is vertically and fixedly connected with a plurality of studs. The lower end of the supporting profile steel is vertically and fixedly inserted into the lower structural body, then the upper structural body is poured, the supporting profile steel bears vertical loads, and after early-stage main shrinkage deformation is completed, micro-expansion concrete with the strength grade not lower than the original design strength grade is used for filling reserved spaces of the frame columns and the shear wall, and a slow pouring section is formed. And the construction safety can be guaranteed, and the actual construction process can be better matched.
本发明公开了一种减小超长结构混凝土收缩应力的节点结构及施工方法，在缓浇区段内至少设有一根支撑型钢，在缓浇区段浇筑之前支撑型钢上下端分别固定插接上结构体、下结构体，且支撑型钢的插入上结构体和下结构体的部分垂直固定连接有若干栓钉。先将支撑型钢下端竖直固定插入下结构体，再浇筑上结构体，由支撑型钢承担竖向载荷，完成早期主要收缩变形后，用不低于原设计强度等级的微膨胀混凝土填实框架柱、剪力墙预留的空间，形成缓浇区段。使得施工的安全性能够得到保障，更好地匹配实际施工的过程。
Node structure for reducing shrinkage stress of super-long structure concrete and construction method
The invention discloses a node structure for reducing the shrinkage stress of super-long structural concrete and a construction method. At least one piece of supporting profile steel is arranged in a slow pouring section, and an upper structural body and a lower structural body are fixedly connected to the upper end and the lower end of the supporting profile steel in an inserted mode before the slow pouring section is poured; and the part, inserted into the upper structural body and the lower structural body, of the supporting profile steel is vertically and fixedly connected with a plurality of studs. The lower end of the supporting profile steel is vertically and fixedly inserted into the lower structural body, then the upper structural body is poured, the supporting profile steel bears vertical loads, and after early-stage main shrinkage deformation is completed, micro-expansion concrete with the strength grade not lower than the original design strength grade is used for filling reserved spaces of the frame columns and the shear wall, and a slow pouring section is formed. And the construction safety can be guaranteed, and the actual construction process can be better matched.
本发明公开了一种减小超长结构混凝土收缩应力的节点结构及施工方法，在缓浇区段内至少设有一根支撑型钢，在缓浇区段浇筑之前支撑型钢上下端分别固定插接上结构体、下结构体，且支撑型钢的插入上结构体和下结构体的部分垂直固定连接有若干栓钉。先将支撑型钢下端竖直固定插入下结构体，再浇筑上结构体，由支撑型钢承担竖向载荷，完成早期主要收缩变形后，用不低于原设计强度等级的微膨胀混凝土填实框架柱、剪力墙预留的空间，形成缓浇区段。使得施工的安全性能够得到保障，更好地匹配实际施工的过程。
Node structure for reducing shrinkage stress of super-long structure concrete and construction method
一种减小超长结构混凝土收缩应力的节点结构及施工方法
LENG QIAN (Autor:in) / SUN HAIDONG (Autor:in)
18.08.2023
Patent
Elektronische Ressource
Chinesisch
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