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{live-template:Test Problem}

h1. Overview

This simple two span model simulates a structure that is simply supported for dead loads and continuous for live load. A [staged construction|kb:staged construction] [load case|kb:load case] with 5 stages was defined as follows to simulate this condition:

* Stage 1: Add 2 frame elements, one element for each span.
* Stage 2: Assign moment end releases to start joint of the frame element representing the second span. (the frame end releases must be first defined via "Define > Named Property Sets > Frame Releases"; see [staged construction tips|kb:Staged construction tips] and [staged construction operations|kb:Staged-construction operations])
* Stage 3: Apply loads, the response will be as for a simply supported structure.
* Stage 4: Fix the moment end releases applied in Stage 2.
* Stage 5: Apply loads, the response for these additional loads will be as for a continuous structure.

h1. Model Screenshot

!2-span_girder_simply_supported_for_DL_and_continuous_for_LL.png!

h1. Attachments

* [SAP2000 V12.0.1 model |Two-span girder simply-supported for DL and continuous for LL^SAP2000 V12.0.1 model.zip] (Zippedzipped .SDB file, 5 kB)