X-Braced Bent Analysis for Lateral Loads (2 Story Buildings)
For 2-Story Bent
Assuming Fully Braced, Tension-Only System
Forces and Reactions:
Member Force Sign Convention:
+ = Compression
- = Tension
Vertical Reaction Sign Convention:
Upward = Compression
Downward = Tension (Uplift)
Input Data for Drift Analysis:
|Mod. of Elasticity, E =||ksi|
LC = Left Column Segment
RC = Right Column Segment
HB = Horizontal Beam
DB = Diagonal Brace
Note: Column segments, beams,and braces are numbered from bottom to top, same as stories.
Note: Results are for joints at left side of bent, with all members (segments) assumed pinned at both ends.
|Story||Total Drift||Drift Ratio||Story Drift||Drift Ratio|
|Number||Δt (in.)||(Total)||Δs (in.)||(per Story)|
Ht = total height of bent (base to top story).
Hs = total height from base to story considered.
|Check of Base Reactions:|
|VL =||k||VL = P2+P1+P(bot)|
|RR = -RL =||k||RR = -RL = (P2*Ht+P1*h1)/L|
Disclaimer: This calculator is not intended to be used for the design of actual structures, but only for schematic (preliminary) understanding of structural design principals. For the design of an actual structure, a competent professional should be consulted.
‘Calculations courtesy of Alex Tomanovich, PE ’