STRUCTURAL REPAIR BY EXTERNAL PRESTRESSED CABLES TECHNOLOGY, IN ADDITION TO COMPOSITE CFRP

Sunday - 25/07/2021 11:43
STRUCTURAL REPAIR BY  EXTERNAL PRESTRESSED CABLES TECHNOLOGY, IN ADDITION TO COMPOSITE CFRP
PROJECT: STRUCTURAL REINFORCEMENT WITH EXTERNAL PRESTRESSED CABLES AND CFRP.
INVESTOR: PHU TAI JOINT STOCK COMPANY
EXECUTING UNIT: BKG JOINT STOCK COMPANY



Structural reinforcement by external prestressed cables technology combined with CFRP composite material is effective in lifting the floor load from 250 Kg/m2 up to 600 Kg/m2. During the tensioning process, the structural monitoring system is used to monitor the construction process to achieve the highest safety and efficiency.
 
Mô hình thí nghiệm DUL ngoài
Experimental model in the room about the external prestressed cables

Mô hình tính toán Sap2000 bản quyền
Copyrighted SAP2000 calculation model
 
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Drill holes to create holes in beams, floors
 
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Install the bearing to the design position
 
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Insert the external prestressed cables into the tension position
 
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Carrying out tensioning of external prestressed cables 
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Structural monitoring system during tensioning external prestressed cables
 
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Underfloor CFRP reinforcement
 
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CFRP reinforcement on the floor

After the structural reinforcement repair was completed, the testing unit of the Center for Science, Technology & Investment Consulting, Da Nang University of Science and Technology performed the load test to re-evaluate the load carrying capacity of the structure.
 
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Use water to pump into the load test cell
 
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Load to design
 
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Installation of stress equipment
 
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Install displacement LVDT device
 
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Connect the device to the control center
 
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Conduct data collection
 
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Automatic data collection
After carrying out the load test within 24 hours, the load test results were obtained with the design requirements for reinforcement from 250Kg/m2 up to 600 Kg/m2.





 

Author: LƯƠNG NGUYỄN THẢO VÂN

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