Chapter 10 - Analysis of Statically Indeterminate Structures by the Force Method
Semester Overview
Chapter Topic 1 terminology 2-5 statics review 6 influence lines 8-9 deflections 10-12 indeterminate structures
Quiz 3 Topics
Deflections and Slopes
1. Integration / Superposition (deflection tables) beams 2. Conjugate Beams 3. Virtual Work beams, trusses, frames
Quiz 4 & 5 Topics
Forces and Moments in Indeterminate Structures
1. Integration / Superposition Quiz 4 beams, trusses, frames 2. Conjugate Beams Quiz 4 3. Virtual Work Quiz 4 4. Slope-Deflection Quiz 4 5. Moment-Distribution Quiz 5
Objectives
- Determine ground reactions of statically-indeterminate beams.
- Solve for the redundant reaction(s) using the force method: ΔB + B fBB = 0
- Judge the most efficient technique to obtain the terms in the force-method equation.
- superposition tables (CE 110)
- conjugate beam: M' + B m' = 0 (chapter 8)
- virtual work: ∫(mM/EI)dx + B ∫(mm/EI)dx = 0 (chapter 9)
- Solve for the remaining reactions using equilibrium.
- Draw V&M diagrams.
- Determine ground reactions of statically-indeterminate frames.
- Solve for the redundant reaction(s) using the force method and virtual work: ΔB + B fBB = ∫(mM/EI)dx + B ∫(mm/EI)dx = 0
- Solve for the remaining reactions using equilibrium.
- Draw V&M diagrams.
- Determine member loads of statically-indeterminate trusses.
- Solve for the redundant reaction(s) using the force method and virtual work: ΔB + B fBB = Σ(nNL/AE) + B Σ(nnL/AE) = 0
- Solve for the remaining member loads using equilibrium.
Concepts
Problems
* examples to be discussed in class
7e
Examples7e
Homeworkdegree of
indeterminacysuper-
positionconjugate
beamvirtual
workAutodesk
Robotcomments reactions
beam
10.001 solution*1 -- 1 x solution 10.002 -- -- solution two cross-sections 10.003 -- -- -- 10.004 -- -- -- 10.005 -- solution 1 x solution 10.006 solution*2 -- 1 x solution 10.007 -- solution 1 x -- 10.008 -- -- -- 10.009 -- solution 1 x x solution 10.010 solution*5 -- 1 x x solution 10.011 solution*6 -- 1 x x solution 10.012 -- -- solution spring support 10.013 -- -- -- 10.014 -- -- -- 10.015 -- -- solution 10.016 solution*7 -- 2 x solution 10.017 solution*3 -- 2 x solution 10.018 solution*4 -- 2 x solution frame 10.019 -- -- solution 10.020 -- solution 1 x solution 10.021 solution* -- 1 x solution 10.022 solution* -- 1 x solution 10.023 -- -- -- 10.024 -- -- solution 10.025 -- -- solution truss 10.026 -- solution 1 x solution 10.027 -- -- -- 10.028 solution*2 -- x solution 10.029 -- -- solution 10.030 -- -- -- 10.031 -- solution 1 x -- 10.032 solution*1 -- 1 x -- 10.033 -- -- solution 10.034 -- -- solution combined
structures10.035 -- -- solution 10.036 -- -- -- 10.037 -- -- solution 10.038 -- -- solution 10.039 -- -- solution stacked beams 10.040 -- -- solution influence
linesbeam 10.041 -- -- -- 10.042 -- -- -- 10.043 -- -- -- 10.044 -- -- -- 10.045 -- -- -- 10.046 -- -- -- 10.047 -- -- -- 10.048 -- -- -- frame 10.049 -- -- -- 10.050 -- -- -- 10.051 -- -- -- 10.052 -- -- -- 10.053 -- -- -- 10.054 -- -- --