For 2-Story Bent

Assuming Fully Braced, Tension-Only System

#### Forces and Reactions:

ft | |||||||||||

k | |||||||||||

ft | Brace | L2 = | |||||||||

k | |||||||||||

ft | Brace | L1 = | |||||||||

k | |||||||||||

**Member Force Sign Convention:**

+ = Compression

- = Tension

**Vertical Reaction Sign Convention:**

Upward = Compression

Downward = Tension (Uplift)

#### Input Data for Drift Analysis:

Member Data | |||
---|---|---|---|

Designation | Length | Area | |

(ft.) | (in.^2) | ||

Left Column | LC1 | ||

LC2 | |||

Right Column | RC1 | ||

RC2 | |||

Beams | HB1 | ||

HB2 | |||

Braces | DB1 | ||

DB2 | |||

Mod. of Elasticity, E = | ksi |

Nomenclature:

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.

#### Results:

Note: Results are for joints at left side of bent, with all members (segments) assumed pinned at both ends.

Drift Analysis | ||||
---|---|---|---|---|

Story | Total Drift | Drift Ratio | Story Drift | Drift Ratio |

Number | Δt (in.) | (Total) | Δs (in.) | (per Story) |

Story 1 | ||||

Story 2 |

Note:
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 |

Shape | Size | Area (in.^2) |

W Shape | ||

C Shape | ||

Single-Angle | ||

Double-Angle | ||

WT Shape | ||

Rect. HSS | ||

Round HSS | ||

Pipe | ||

Rod |

**Disclaimer: **This calculator are 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'