Using the mechanism method, determine the collapse load factor a for the portal frame shown in Figure Mp=855 kNm L=2 m(Steel Material S355) (prove your results with program solution) 0,1P Mp 727 1,131Mp L P/4 L P/4 L Mp 1/2L

Using the mechanism method, determine the collapse load factor a for the portal frame shown in Figure Mp=855 kNm L=2 m(Steel Material S355) (prove your results with program solution) 0,1P Mp 727 1,131Mp L P/4 L P/4 L Mp 1/2L

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

Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.

Question

Using the mechanism method, determine the collapse load factor a for the portal frame shown in
Figure Mp=855 kNm L=2 m(Steel Material S355) (prove your results with program solution)
0,1P
Mp
727
1,131Mp
L
P/4
L
P/4
L
Mp
L
1/2L

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Step 1: Given:

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Step 2: Beam mechanism:

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Step 3: Sway mechanism:

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Step 4: Combined mechanism:

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