Welding construction method of cement-based material applied to composite concrete structure

A cement-based material and concrete technology, applied in cement production, building construction, construction, etc., can solve the problems of complex connection structure, unreusable components, and unsuitable for large-scale use.

Inactive Publication Date: 2019-08-16
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of the existing precast concrete connection construction method is that a large amount of post-cast concrete needs to be poured when the components are connected, which makes it impossible to reuse the components when they are removed
At the same time, if steel plate bolts are used for connection, the connection structure of the interface between the steel plate and the precast concrete component is too complicated, and it is not suitable for large-scale use

Method used

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  • Welding construction method of cement-based material applied to composite concrete structure
  • Welding construction method of cement-based material applied to composite concrete structure
  • Welding construction method of cement-based material applied to composite concrete structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0198] Production of precast concrete elements at the factory or on site, e.g. image 3 As shown, the first part of precast concrete components (such as figure 1 ) and the second part of precast concrete elements (such as figure 2 ) are precast concrete beam members. Transport and hoist the prefabricated concrete components to the place to be installed, and extend the steel bars passing through the first part of the prefabricated concrete components into the reinforcement channels of the second part of the prefabricated concrete components for fixing. The cement-based material is filled into the gap between the interfaces of adjacent prefabricated concrete components, so that the first part of the prefabricated concrete component and the second part of the prefabricated concrete component are connected and cured. It constitutes concrete beam-beam joint sample 1#.

[0199] Among them, the cross-sectional dimensions of the beams of the first part of the precast concrete memb...

Embodiment 2

[0218] Production of precast concrete elements at the factory or on site, e.g. Figure 5 As shown, the first part of precast concrete components (such as figure 1 ) is the precast concrete column member, the second part of the precast concrete member (such as figure 2 ) is a precast concrete beam member. Among them, the tensile side of the precast concrete beam member protrudes the steel bar, transports and lifts the precast concrete member to the position to be installed, and extends the steel bar passing through the first part of the precast concrete member into the steel bar channel of the second part of the precast concrete member for fixing. The cement-based material is filled into the gap between the interfaces of adjacent prefabricated concrete components, so that the first part of the prefabricated concrete component and the second part of the prefabricated concrete component are connected and cured. It constitutes concrete beam-column joint sample 2#.

[0219] Amo...

Embodiment 3

[0238] Production of precast concrete elements at the factory or on site, e.g. Image 6 As shown, the first part of precast concrete components (such as figure 1 ) and the second part of precast concrete elements (such as figure 2 ) are precast concrete column members. Transport and hoist the prefabricated concrete components to the place to be installed, and extend the steel bars passing through the first part of the prefabricated concrete components into the reinforcement channels of the second part of the prefabricated concrete components for fixing. The cement-based material is filled into the gap between the interfaces of adjacent prefabricated concrete components, so that the first part of the prefabricated concrete component and the second part of the prefabricated concrete component are connected and cured. It constitutes concrete column-column joint sample 3#, which bears axial pressure.

[0239] Among them, the column cross-sectional dimensions of the first part ...

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Abstract

The invention provides a concrete joint structure connected by using a cement-based material, namely a cement-based material welded joint. The structure includes a plurality of precast concrete members, gaps between the interfaces of the adjacent precast concrete members are filled with the cement-based material, and the cement-based material is a fiber cement-based composite material. The invention further provides a construction and control method of the concrete joint structure connected by the cement-based material and use in a composite concrete structure. According to a welding construction method of the cement-based material applied to the composite concrete structure, the operation procedure is simple, the assembly speed of a precast structure on site is increased while the qualityis ensured, the construction period is shortened, the cost is lowered, the advantages of the precast structure are exerted, and the efficiency of building industrialization is improved.

Description

technical field [0001] The invention belongs to the technical field of building construction, and relates to a welding construction method for cement-based materials suitable for combined concrete structures, in particular to a connection construction method for cement-based material prefabricated components suitable for combined concrete structures. Background technique [0002] Concrete material is obtained by using cement as cementitious material, sand and stone as aggregate, mixed with water (additives and admixtures may be included) in a certain proportion, stirred and maintained, and belongs to cement-based materials. Precast concrete components are concrete components that are prefabricated in factories or on-site processing areas using concrete materials. The method of using prefabricated concrete components for concrete structure construction is called prefabricated assembly construction method. This method can shorten the construction time of concrete structures an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/38C04B28/04
CPCE04B1/38C04B28/04C04B2201/50C04B18/08C04B14/068C04B2103/0068C04B24/24C04B16/0625Y02P40/10
Inventor 肖建庄张航华张青天卢昱杰
Owner TONGJI UNIV
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