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+---
+type: concept
+title: "Midas Civil PSC and Prestress Loss Analysis"
+created: 2026-06-02
+updated: 2026-06-02
+address: c-000169
+aliases:
+  - MIDAS Civil PSC analysis
+  - midas Civil prestress loss analysis
+tags:
+  - concept
+  - finite-element-method
+  - midas-civil
+  - prestress
+  - bridge-analysis
+status: current
+related:
+  - "[[Midas-Civil-Analysis-Reference|Midas Civil Analysis Reference]]"
+  - "[[midas Civil]]"
+  - "[[Beam and Frame Finite Elements]]"
+  - "[[Midas FEA Embedded Reinforcement Modeling]]"
+  - "[[Midas Civil Construction Stage and Time-Dependent Analysis]]"
+sources:
+  - "[[Midas-Civil-Analysis-Reference|Midas Civil Analysis Reference]]"
+---
+
+# Midas Civil PSC and Prestress Loss Analysis
+
+## Definition
+
+Midas Civil PSC and prestress loss analysis is the prestressed concrete workflow for tendon force application and loss evaluation in bridge/civil member models.
+
+## How It Works
+
+The manual covers prestress loading and losses from anchorage slip, tendon-sheath friction, elastic deformation of concrete, relaxation, and time-dependent concrete behavior. Relaxation models include Magura and CEB-FIP style references. The PSC workflow is tightly coupled to construction stages because tendon stressing, section age, creep, shrinkage, and prestress losses evolve over time.
+
+## Solver Development Notes
+
+- Tendon geometry and eccentricity must be converted to equivalent nodal/member actions consistently.
+- Loss calculations need staged state: jack force, anchorage conditions, friction path, concrete elastic shortening, creep, shrinkage, and relaxation.
+- Result comparison should include tendon force, member force, stress, camber/deflection, and reaction histories.
+- PSC tests should isolate immediate losses before combining them with long-term losses.
+
+## Connections
+
+- [[Beam and Frame Finite Elements]] supplies the member-analysis base.
+- [[Midas Civil Construction Stage and Time-Dependent Analysis]] supplies the stage/time dependence.
+- [[Midas FEA Embedded Reinforcement Modeling]] provides a detail-FE prestress modeling counterpart.