Construction method for strengthening concrete floor

A construction method and concrete technology, applied in construction, building maintenance, building construction, etc., can solve problems such as large spacing between distributed reinforcement, unreasonable selection of reinforcement specifications, and minimum reinforcement ratio that cannot meet the demand, so as to ensure the coordinated bearing capacity , Improve the mechanical properties of the structure and reduce the effect of the main tensile stress

Active Publication Date: 2013-09-25
SHANGHAI XIANDAI ARCHITECTURE ENG & CONSULTING CO LTD
View PDF5 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The minimum reinforcement ratio cannot meet the demand, the selection of reinforcement specifications is not reasonable, and the distribution of reinforcement spacing is too large

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Construction method for strengthening concrete floor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] This embodiment includes shotcrete 1, steel steering block 2, embedded iron parts 3, prestressed steel strand 4, guide plate 5, pressure steel plate 6, anchor piece 7, high-strength cement slurry 8, mortar protective layer 9, concrete The steel steering block 2 is set at the lower quarter span of the floor slab 10. The thickness of the steel steering block 2 is 35 mm. The steel steering block 2 is welded to the embedded iron part 3 embedded in the concrete floor 10. The thickness of the embedded iron part 3 is 10 mm. The pre-embedded iron parts 3 are welded to the main reinforcement at the lower part of the concrete floor 11, and the shotcrete 1 is set between the two steel steering blocks 2 under the concrete floor 11. The plate 5 is used to fix the prestressed steel strand 4, the prestressed steel strand 4 passes through the slot hole and is fixed on the pressure-bearing steel plate 6 through the anchor 7, the pressure-bearing steel plate 6 is welded to the main reinfo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a construction method for strengthening a concrete floor. The method is characterized by including the steps of firstly, drilling slots on the concrete floor; secondly, stripping off a main reinforcement protecting layer of the concrete floor, welding embedded iron parts to main reinforcement of the concrete floor, and welding a steel turning block to each embedded iron part; thirdly stripping off a concrete column longitudinal reinforcement protecting layer of a concrete column, and welding bearing steel plates to concrete column longitudinal reinforcement; fourthly, cleaning concrete floor scraps, and spraying concrete between each two steel turning blocks under the concrete floor; fifthly, mounting a guide plate in each slot of the concrete floor; sixthly, tensioning prestress stranded steel wires with an electrothermal method one day after concrete spraying is completed; seventhly using high-pressure grouting to grout high-strength cement paste into holes, penetrated by the prestress stranded steel wires, in the concrete floor; eighthly, setting cement mortar at the bottom of the concrete floor to serve as a protecting layer.

Description

technical field [0001] The invention relates to a concrete floor, in particular to a concrete floor reinforcement construction method. Background technique [0002] In the construction of concrete slabs, quality accidents often occur due to construction and design reasons. The main reasons for the construction are: premature demolition of the formwork; premature loading of the newly poured concrete; untimely maintenance, lack of strict management during pouring, stepped on the surface negative reinforcement, misplaced bearings, and pouring concrete in rainy days. Design reasons are: the effective height of the concrete floor is not enough. Insufficient reinforcement of concrete slabs. The minimum reinforcement ratio cannot meet the demand, the selection of reinforcement specifications is unreasonable, and the distribution of reinforcement spacing is too large. Excessive concentration of pipelines reduces the cross-section of the concrete floor, thereby causing stress conc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
Inventor 罗海军
Owner SHANGHAI XIANDAI ARCHITECTURE ENG & CONSULTING CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap