CE 152- CHAPTER 1

19問 • 2年前

問題一覧

the support reactions and internal forces can be determined from the equations of equilibrium (including equations of condition, if any)

Statically Determinate Structures

have more support reactions and/or members than required for static stability

Statically Indeterminate Structures

the equilibrium equations alone are not sufficient for determining the reactions and internal forces, and must be supplemented by additional relationships based on the geometry of deformation of structures

Statically Indeterminate Structures

additional relationships needed in the analysis of indeterminate structures that ensure that continuity of the displacements is maintained throughout the structure and that the structure’s various parts fit together

Compatibility Conditions

the advantages of statically indeterminate structures over determinate structures include the following:

Smaller Stresses, Greater Stiffness, Redundancies

statically indeterminate structures have the capacity for redistributing loads when certain structural portions become overstressed or collapse in cases of overloads due to earthquakes, tornadoes, impact, and other such events

Redundancies

the main disadvantages of statically indeterminate structures, over determinate structures, are the following:

Stresses Due To Support Settlements, Stresses Due To Temperature Changes And Fabrication Errors

a structure that maintains its shape and remains a rigid body when detached from the supports.

Internally Stable

a structure that can’t maintain its shape and may undergo displacements under small disturbances when not supported externally.

Internally Unstable

supported by exactly three reactions

Statically Determinate Externally

supported by more than three reactions

Statically Indeterminate Externally

the reactions can’t be determined from the three equations of equilibrium

Statically Indeterminate Externally

excess reactions necessary for equilibrium

External Redundants

the number of external redundants

Degree Of External Indeterminacy

if a structure is supported by fewer than three support reactions

Statically Unstable Externally

the reactions are not sufficient to prevent all possible movements of the structure in its plane

Statically Unstable Externally

unstable due to improper arrangement of supports

Geometrically Unstable Externally

Connecting two members or portions of a structure provide one independent equation of condition

Internal Hinge

Connecting two members or portions of a structure provide two independent equations of condition

Internal Roller

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70問 • 2年前

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45問 • 2年前

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60問 • 2年前

Mharvie Pailano

問題一覧

the support reactions and internal forces can be determined from the equations of equilibrium (including equations of condition, if any)

Statically Determinate Structures

have more support reactions and/or members than required for static stability

Statically Indeterminate Structures

Compatibility Conditions

the advantages of statically indeterminate structures over determinate structures include the following:

Smaller Stresses, Greater Stiffness, Redundancies

Redundancies

the main disadvantages of statically indeterminate structures, over determinate structures, are the following:

Stresses Due To Support Settlements, Stresses Due To Temperature Changes And Fabrication Errors

a structure that maintains its shape and remains a rigid body when detached from the supports.

Internally Stable

a structure that can’t maintain its shape and may undergo displacements under small disturbances when not supported externally.

Internally Unstable

supported by exactly three reactions

Statically Determinate Externally

supported by more than three reactions

Statically Indeterminate Externally

the reactions can’t be determined from the three equations of equilibrium

Statically Indeterminate Externally

excess reactions necessary for equilibrium

External Redundants

the number of external redundants

Degree Of External Indeterminacy

if a structure is supported by fewer than three support reactions

Statically Unstable Externally

the reactions are not sufficient to prevent all possible movements of the structure in its plane

Statically Unstable Externally

unstable due to improper arrangement of supports

Geometrically Unstable Externally

Connecting two members or portions of a structure provide one independent equation of condition

Internal Hinge

Connecting two members or portions of a structure provide two independent equations of condition

Internal Roller