# V. Support Reactions for a Simple Frame

Find support reactions due to a load at the free end of a cantilever bent plate with an intermediate support.

## Reference

Timoshenko, S., Strength of Materials, Part 1, D. Van Nostrand Co., Inc., 3rd edition, 1956, page 346, problem 2.

## Problem

Determine the reaction of the system as shown in the figure.

 P = 1 kip

 L = 10 in

## Comparison

Table 1. Comparison of results
Result Type Theory STAAD.Pro Difference
Rx (kips) 1.5 1.5 none

The file C:\Users\Public\Public Documents\STAAD.Pro CONNECT Edition\Samples\ Verification Models\03 Frames\Support Reactions for a Simple Frame.STD is typically installed with the program.

``````STAAD PLANE : SUPPORT REACTIONS FOR A SIMPLE FRAME
START JOB INFORMATION
ENGINEER DATE 17-Sep-18
END JOB INFORMATION
*
*  REFERENCE 'STRENGTH OF MATERIALS' PART-1 BY S. TIMOSHENKO
*  PAGE 346 PROBLEM NO. 2. THE ANSWER IN THE BOOK AFTER
*  RECALCULATION = 1.5
*
UNIT INCHES KIP
JOINT COORDINATES
1 0 0 0; 2 0 10 0; 3 0 20 0; 4 10 20 0;
MEMBER INCIDENCES
1 1 2; 2 2 3; 3 3 4;
MEMBER PROPERTY AMERICAN
1 TO 3 PRIS AX 10 IZ 100
DEFINE MATERIAL START
ISOTROPIC MATERIAL1
E 3000
POISSON 0.17
END DEFINE MATERIAL
CONSTANTS
MATERIAL MATERIAL1 ALL
SUPPORTS
1 FIXED
2 FIXED BUT FY MZ
4 FY -1
PERFORM ANALYSIS
PRINT SUPPORT REACTION
FINISH
``````

```   SUPPORT REACTIONS -UNIT KIP  INCH    STRUCTURE TYPE = PLANE