GIVEN: A W 10 x ID0 steel “very short column (A = 11.1 in?) on a concrete pedestal and footing60 kipsLstelEsteel = 30 x 10° ksiAsteel = 6.5 x 106 in/in/°FColumn– W 10 x loDL= 6'Econcrete = 3 x 10° ksiaconcrete = 5.5 x 10“ in/in/ºF18-in.-diameter pedestalSquare footing – 5'x5'q"Concretet.REQ’D: A) Bearing stress on surface between column and pedestal due to the axial load, PB) Total axial shortening of the column, pedestal and footing due to the axial load, P

load on column P=60 kipsand area of W10×100 cross section column Ac=11.1 in2area of pedestral…

GIVEN; A W 10 × 100 steel “very short" column (A = 11.1 in?) on a concrete pedestal and footing 60 kips Esteel = 30 x 10° ksi astel = 6.5 x 106 in/in/°F Column– W 10 x 100 L= 6' steel 19 in.-diameter pedestal Square footing- 5'x5' Econcrete = 3 x 10° ksi aconcrete = 5.5 x 10“ in/in/°F Concrete

GIVEN; A W 10 × 100 steel “very short" column (A = 11.1 in?) on a concrete pedestal and footing 60 kips Esteel = 30 x 10° ksi astel = 6.5 x 106 in/in/°F Column– W 10 x 100 L= 6' steel 19 in.-diameter pedestal Square footing- 5'x5' Econcrete = 3 x 10° ksi aconcrete = 5.5 x 10“ in/in/°F Concrete

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.

Question

GIVEN: A W 10 x ID0 steel “very short column (A = 11.1 in?) on a concrete pedestal and footing
60 kips
Lstel
Esteel = 30 x 10° ksi
Asteel = 6.5 x 106 in/in/°F
Column– W 10 x loD
L= 6'
Econcrete = 3 x 10° ksi
aconcrete = 5.5 x 10“ in/in/ºF
18-in.-diameter pedestal
Square footing – 5'x5'
q"
Concrete
t.
REQ’D: A) Bearing stress on surface between column and pedestal due to the axial load, P
B) Total axial shortening of the column, pedestal and footing due to the axial load, P

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