Method for providing a wood-based load-bearing panel for use in the assembling of a construction system

Abstract

The present invention relates to a method for providing a wood-based load-bearing panel (113.1. 114.1. 115.1) for use in the assembling of a construction system (100), wherein a position is allocated to the panel. a panel template is provided, at least one variation of the panel template is determined based on a variation of parameters so that the load-bearing capacity of the variation is comprised between 1 and 4 times the required vertical force that the variation must bear at the position of the panel. then a variation is selected, and the panel is manufactured from the selected variation. The invention also relates to a wood-based load-bearing panel (115.1) obtainable with such method, and to a construction system (100) including such panel (115.1).

1 . Method for providing a wood-based load-bearing panel ( 113 . 1 ,  114 . 1 ,  115 . 1 ) for use in the assembling of a construction system ( 100 ), wherein the construction system ( 100 ) includes a set of levels ( 110 ,  120 ,  130 ) which include structural elements ( 111 ,  112 ,  113 ,  114 ,  115 ), wherein the method includes:
 Allocating a position (P 115.1 ) to the wood-based load-bearing panel ( 115 . 1 ) within the construction system ( 100 );   Providing a panel template ( 10 ), which includes a series of at least three superimposed plies ( 11 ,  12 ,  13 ,  14 ,  15 ), at least two plies ( 11 ,  12 ) of which including a series of wood-based strips ( 11 . 1 ,  11 . 2 ,  11 . 3 ,  12 . 1 ,  12 . 2 ,  12 . 3 ,  12 . 4 ,  12 . 5 ) distributed along the ply ( 11 ,  12 ), the wood-based strips ( 11 . 1 ,  11 . 2 ,  11 . 3 ) of at least one ply ( 11 ) being substantially vertically oriented within the construction system ( 100 );   Determining at least one variation ( 70 ,  80 ,  90 ) of the panel template ( 10 ), based on a variation of parameters such as any of the number and section of plies and the number and distribution of wood-based strips in each ply of the panel template ( 10 ), so that the load-bearing capacity (F 2   70 , F 2   51 , F 2   52 , F 2   53  . . . ) of the variation ( 70 ) is comprised between 1 and 4 times the required vertical force (F 1   70 , F 1   51 , F 1   52 , F 1   53  . . . ) that the variation ( 70 ) must bear at the position (P 115.1 ) of the wood-based load-bearing panel ( 115 . 1 ) within the construction system ( 100 );   Selecting one of the at least one variation ( 70 ,  80 ,  90 ); and   Manufacturing the panel ( 115 . 1 ) from the selected variation ( 70 ).   
     
     
         2 . The method of  claim 1 , wherein the method is computer-implemented. 
     
     
         3 . The method of  claim 1 or 2 , comprising determining a required vertical force (F 1   70 ) that the panel must bear at the position (P 115.1 ) of the wood-based load-bearing panel ( 115 . 1 ) within the construction system ( 100 ), wherein the panel template is provided based on the required vertical force and the allocated position. 
     
     
         4 . The method according to  claim 3 , wherein the step of determining at least one variation of the panel template ( 70 ,  80 ,  90 ) includes:
 Starting from the panel template ( 10 );   Varying parameters of the panel template ( 10 ) such as the number and section of plies ( 11 ,  12  . . . ), and the number, width and position of the wood-based strips ( 11 . 1 ,  11 . 2  . . . ) in each ply ( 11 ,  12  . . . );   Determining the at least one variation ( 70 ,  80 ,  90 ) of the panel template ( 10 ) from at least one variation of the parameters of the panel template ( 10 );   Determining the load-bearing capacity of the variation(s) (F 2   70 ); and   Comparing that load-bearing capacity (F 2   70 ) with the required vertical force.   
     
     
         5 . The method according to  claim 4 , comprising determining at least two variations of the panel template from at least two variations of the parameters of the panel template, determining the load-bearing capacities of the at least two variations, and comparing the load-bearing capacities with the required vertical force. 
     
     
         6 . The method according to  any of the preceding claims , wherein the step of determining at least one variation of the panel template ( 70 ,  80 ,  90 ) further includes:
 Gathering substantially vertically oriented wood-based strips ( 11 . 1 ,  11 . 2  . . . ) into a series of stacks ( 51 ,  52 ,  53  . . . );   Determining the local load-bearing capacity (F 2   51 , F 2   52 , F 2   53  . . . ) of each stack ( 51 ,  52 ,  53  . . . ); and   Determining the local required vertical force (F 1   51 , F 1   52 , F 1   53  . . . ) that each stack ( 51 ,  52 ,  53  . . . ) must bear at its position (P 51 , P 52 , P 53  . . . ) in the wood-based load-bearing panel ( 115 . 1 ) within the construction system ( 100 ); and   Comparing, for each stack, the local load-bearing capacity (F 2   51 , F 2   52 , F 2   53  . . . ) and the local required vertical force that the stack must bear (F 1   51 , F 1   52 , F 1   53  . . . ).   
     
     
         7 . The method according to  claim 6 , wherein the at least one variation of the panel template ( 70 ,  80 ,  90 ) is determined so that the local load-bearing capacity of the stacks (F 2   51 , F 2   52 , F 2   53  . . . ) is comprised between 1 and 4 times the local required vertical force that the stacks must bear (F 1   51 , F 1   52 , F 1   53  . . . ) for a majority of stacks ( 51 ,  52 ,  53  . . . ). 
     
     
         8 . The method according to  claim 7 , wherein the at least one variation of the panel template ( 70 ,  80 ,  90 ) is determined so that the local load-bearing capacity of the stacks (F 2   51 , F 2   52 , F 2   53  . . . ) is comprised between  1  and  4  times the local required vertical force that the stacks must bear (F 1   51 , F 1   52 , F 1   53  . . . ) for all stacks ( 51 ,  52 ,  53  . . . ). 
     
     
         9 . The method according to any of  claims 1 to 8 , wherein the step of selecting one of the at least one variation ( 70 ,  80 ,  90 ) further includes:
 Generating for each variation ( 70 ,  80 ,  90 ), an inefficiency function (F) which is indicative of the load-bearing capacity surplus of the variation; and   Selecting the variation with the lowest value of inefficiency function (F).   
     
     
         10 . The method according to  any of the preceding claims , wherein the at least one variation of the panel template ( 70 ,  80 ,  90 ) is determined within a set of pre-determined panel designs ( 20 ,  30 ,  40 ,  50 ), based on a range of parameters such as the number and section of plies ( 11 ,  12  . . . ), and the number, width and position of the wood-based strips ( 11 . 1 ,  11 . 2  . . . ) in each ply ( 11 ,  12  . . . ). 
     
     
         11 . The method according to  any of the preceding claims , wherein the required vertical force (F 1   70 ) that at least one variation of the panel template ( 70 ,  80 ,  90 ) must bear is determined based on a distribution of a set of forces applied on the ceiling ( 112 ) right above the panel ( 115 . 1 ). 
     
     
         12 . The method according to  any of the preceding claims , wherein at least one ply ( 11 ,  12  . . .) of the panel template ( 60 ) also includes a set of insulation elements ( 22 . 1 ,  22 . 2  . . . ,  23 . 1 ,  23 . 2  . . . ) interleaved between at least some of the wood-based strips ( 11 . 1 ,  11 . 2  . . . ,  12 . 1 ,  12 . 2  . . . ). 
     
     
         13 . The method according to  claim 12 , wherein the values of the distances (P 1 , P 2 ) between the substantially vertically oriented wood-based strips ( 11 . 1 ,  11 . 2  . . . ) are multiples of a given length, in particular the nominal width of available insulation elements. 
     
     
         14 . The method according to  any of the preceding claims , wherein the wood-based strips ( 11 . 1 ,  11 . 2  . . . ) of each ply ( 11 ) are parallel to each other, and the wood-based strips ( 11 . 1 ,  11 . 2  . . . ) of each ply ( 11 ) are not parallel to the wood-based strips ( 12 . 1 ,  12 . 2  . . . ) of the neighboring plies ( 12 ). 
     
     
         15 . A wood-based load-bearing panel ( 115 . 1 ) obtainable with the method according to any of  claims 1 to 14 , wherein the panel ( 115 . 1 ) includes a series of at least three superimposed plies ( 11 ,  12 ,  13 ,  14 ,  15 ), at least two plies ( 11 ,  12 ) of which including a series of wood-based strips ( 11 . 1 ,  11 . 2 ,  11 . 3 ,  12 . 1 ,  12 . 2 ,  12 . 3 ,  12 . 4 ,  12 . 5 ) distributed along the ply ( 11 ,  12 ), the wood-based strips ( 11 . 1 ,  11 . 2 ,  11 . 3 ) of at least one ply ( 11 ) being substantially vertically oriented within the construction system ( 100 ). 
     
     
         16 . The wood-based load-bearing panel ( 115 . 1 ) according to  claim 15 , wherein the width (W 10 ) and height (H 10 ) of the panel ( 115 . 1 ) depend on transportation and storage requirements. 
     
     
         17 . The wood-based load-bearing panel according to  claim 15 or 16 , wherein the strips of the stacks are distributed inhomogenously amongst the plies. 
     
     
         18 . The wood-based load-bearing panel according to any of  claims 15 to 17 , wherein the stacks are distributed inhomogenously within the panel. 
     
     
         19 . A construction system ( 100 ), comprising a set of levels ( 110 ,  120 ,  130 ), which include a floor ( 111 ), a ceiling ( 112 ) and load-bearing walls ( 113 ,  114 ,  115 ), wherein at least one of the load-bearing walls ( 115 ) includes a wood-based load-bearing panel ( 115 . 1 ) according to any of  claims 15 to 18 . 
     
     
         20 . The construction system ( 1 ) according to the  claim 19 , wherein all the load-bearing walls ( 113 ,  114 ,  115 ) of one of the levels ( 11 ) include wood-based load-bearing panels ( 115 . 1 ) according to any of  claims 15 to 18 . 
     
     
         21 . A construction system ( 100 ), comprising a set of levels ( 110 ,  120 ,  130 ), which include a floor ( 111 ), a ceiling ( 112 ) and load-bearing walls ( 113 ,  114 ,  115 ), wherein:
 At least one of the load-bearing walls ( 115 ) include(s) a first wood-based load-bearing panel and a second wood-based load-bearing panel,   The first panel is located at a first position in the construction system   The second panel is located at a second position in the construction system   The first position is different from the second position,   The first position is associated with a first required vertical force to be supported by the first panel,   The second position is associated with a second required vertical force to be supported by the second panel,   The first vertical force is different from the second vertical force,   Each of the first and second panels includes at least three superimposed plies, at least two plies of which includes a series of wood-based strips distributed along the ply, the wood-based strips of at least one ply being substantially vertically oriented within the construction system,   The load-bearing capacity of the first panel is comprised between 1 and 4 times the first required vertical force, and   The load-bearing capacity of the second panel is comprised between 1 and 4 times the second required vertical force.