Anti-seismic reinforcement method

Abstract

The anti-seismic reinforcement method for a construction element of a building includes providing a reinforcement material comprising polyurea and a priming material; applying the priming material on each of the facades (2, 3) of the construction element to obtain, on each of the facades (2, 3), a respective priming layer (5); applying the reinforcement material on the priming layer (5) by hot-spray spreading to obtain a respective reinforcement layer (4).

1 . An anti-seismic reinforcement method for a construction element of a building, wherein said construction element ( 1 ) has two facades ( 2 ,  3 ), comprising the following steps:
 providing a reinforcement material comprising polyurea;   providing a priming material;   applying said priming material on each of said facades ( 2 ,  3 ) to obtain, on each of said facades ( 2 ,  3 ), a respective priming layer ( 5 );   applying said reinforcement material on said priming layer ( 5 ) of each of said facades ( 2 ,  3 ) by hot-spray application to obtain, on each of said facades ( 2 ,  3 ), a respective reinforcement layer ( 4 ).   
     
     
         2 . The method according to  claim 1 , wherein each of said reinforcement layers ( 4 ) has a thickness greater than or equal to 2 mm. 
     
     
         3 . The method according to  claim 1 , further including a step of determining the thickness of said reinforcement layers ( 4 ) which comprises the sub-steps of:
 detecting the conformation of said construction element ( 1 );   providing, based on said detection, a digital model ( 6 ) of said construction element ( 1 ) with said reinforcement layers ( 4 ) applied thereon, wherein said reinforcement layers ( 4 ) have a predefined thickness;   performing on said digital model ( 6 ) a simulation in which there is simulated the application of one or more static or dynamic loads;   analysing the results of said simulation to determine whether said predefined thickness is suitable;   should said predefined thickness be unsuitable, change the value of said predefined thickness and repeat said simulation and said analysis.   
     
     
         4 . The method according to  claim 1 , wherein said step of providing said reinforcement material envisages:
 supplying to a mixing device a first and a second basic component for obtaining said polyurea of said reinforcement material;   mixing, through said mixing device, said basic components, said mixing device being configured to maintain said polyurea at a temperature comprised between 60° C. and 80° C.   
     
     
         5 . The method according to  claim 1 , wherein said reinforcement material is applied directly on said priming layer. 
     
     
         6 . The method according to  claim 1 , wherein said priming material is based on epoxy resins. 
     
     
         7 . The method according to  claim 1 , wherein said application step is carried out by means of a spray apparatus connected to the mixing device to receive said reinforcement material, said spray apparatus being configured to carry out a hot spraying of said reinforcement material at a temperature comprised between 60° C. and 80° C. 
     
     
         8 . The method according to  claim 1 , further including a step for applying in proximity of an end of said construction element ( 1 ) a constraint structure ( 7 ) adapted to reinforce said construction element ( 1 ). 
     
     
         9 . A construction element ( 1 ) reinforced by the method according to  claim 1 . 
     
     
         10 . A building comprising at least one construction element ( 1 ) according to  claim 9 .