HI, Can anyone clear my following queries from RAM Concept
1) The Centroid stress plots under the Rule Set design reflects the Precompression forces in the slab ?
2) We have noticed that the precompression value reduces if we put an additional short tendon and stop midway in the slab rather than putting it till the end. When we remove this short tendon, it regains back its precompression values. This shouldn't happen in reality as any additional tendon should help the slab to attain more precompression force. We believe it is because the slab elements are meshed as nodal points and when the short tendon ends, due to difference is displacement between two nodal plates( one with the tendon and one without the tendon), it takes the average of two location and displays the precompression force at that point. Is it true?
1) The centroid stress is the axial stress at the centroid of the cross section that make up the cross section. It is calculated from the resultant axial force and bending moment in the strip and the cross sectional area. Both precompression from tendons and restraint of supports which effectively reduce precompression are reflected in the stress.
2) Please share your model with the short tendon for review. You can use the Secure File Upload link at the bottom of the page to send us the model. Please post back here after the file is uploaded.