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What is pseudo coupled winkler method in MAT FOUNDATIONS ?
- Thread starter emrebagdu
- Start date
Re: MATTE BASE? Matte foundation: beamless raft foundation In the new version, 2 changes were made regarding raft foundations: 1. The method referred to as pseudo coupled winkler method in the literature. 2. Making raft foundation design using pavement interactive solution results. To briefly explain these changes: 1. As you know, we used the "winkler springs" method in the calculation of raft foundations resting on elastic ground before. In this method, fixed value distributed springs (area springs) were defined and solutions were made under the raft foundation in proportion to the soil bearing coefficient. However, in this method, arc conjugation between adjacent areas was not taken into account. (Actually, the settlement/pressure at one point of the ground changes the bearing coefficient in the areas adjacent there) and this complex interaction can basically lead to different settlements in total. This limitation of the Winkler method can be solved in 2 ways: a) To ensure conjugateness by defining cross arcs between neighboring arc points b) By dividing the raft area into zones with the pseudo-cpupled method, increasing the spring stiffness towards the outer contour of the raft while decreasing it inward. This interaction is taken into account with the pseudo coupled method we have applied in this version. For more detailed information and a sample solution, you can review the document in the link. (From page 15)
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Interactive in version 2. 0012 When the solution was chosen, the effect of the raft on the superstructure was taken into account as a whole, the influences on the lower points of the column were found, then these influences were applied to the raft system from the outside as a load with the classical method and the raft system was also resolved within itself. In this method, while the effect of the raft foundation on the superstructure (bedding) was modeled, the effect of the superstructure on the raft behavior was not modeled. The change we made in the new version is to make the reinforced concrete design of the raft using the shell effects that emerged in the first stage (whole structure solution). As a result, the raft system behaves together with the rigidity of the structure on it. This effect also creates more economical results in the design of the raft itself. The program divides the raft base area into 3 parts, and calculates with springs of increasing stiffness from the inside out. The parameters it receives from you are the ratios of these areas and the relative stiffness of the springs to be defined in each area. The values that come by default in the program are suitable values, you can analyze in this way. Good work...Re: MATTE FOUNDATION?
Isn't there a Turkish version of the explanations in the link you gave?"Admin":3ijgrose" said:Matte foundation: beamless raft foundation In the new version, 2 changes were made regarding raft foundations: 1. The method referred to as pseudo coupled winkler method in the literature. The raft foundation design is also made by using the pavement interactive solution results.To briefly explain these changes: 1.As you know, we used the "winkler springs" method in the calculation of the raft foundation resting on the elastic ground before. In this method, a constant value spread under the raft foundation in proportion to the soil bearing coefficient. The area springs were defined and solved, but in this method, the spring conjugate between adjacent areas was not taken into account (in reality, settlement/pressure at one point of the ground changes the bearing coefficient in the areas adjacent there), and this mutually complex interaction can lead to fundamentally different settlements. This limitation of the method can be solved in 2 ways: a) Match by defining cross arcs between adjacent arc points To provide stiffness b) By dividing the raft area into zones with the pseudo-cpupled method, increasing the spring stiffness towards the outer contour of the raft and decreasing it towards the inside. This interaction is taken into account with the pseudo coupled method we have applied in this version. For more detailed information and a sample solution, you can review the document in the link. (From page 15)You do not have permission to view link Log in or register now.Interactive in version 2. 0012 When the solution was chosen, the effect of the raft on the superstructure was taken into account as a whole, the influences on the lower points of the column were found, then these influences were applied to the raft system from the outside as a load with the classical method and the raft system was also resolved within itself. In this method, while the effect of the raft foundation on the superstructure (bedding) was modeled, the effect of the superstructure on the raft behavior was not modeled. The change we made in the new version is to make the reinforced concrete design of the raft using the shell effects that emerged in the first stage (whole structure solution). As a result, the raft system behaves together with the rigidity of the structure on it. This effect also creates more economical results in the design of the raft itself. The program divides the raft base area into 3 parts, and calculates with springs of increasing stiffness from the inside out. The parameters it receives from you are the ratios of these areas and the relative stiffness of the springs to be defined in each area. The values that come by default in the program are suitable values, you can analyze in this way. Good work...
Re: MAT BASIC?
training videos about the changes in the latest version Is there?"Admin":2gqo81q3" said:In another attached document, the same method is referred to as the "zoning method" (page 220).