Clarifying the intended combination of this document with the provisions of ACI 318 for composite construction systems
Establishing a new chapter on analysis requirements that applies to all systems
Adding terms to clearly identify the level of ductile response capable of various members in the seismic force resisting system (SFRS)
Adding language to clarify the design of members and connections that are not part of the SFRS for deformation compatibility
Including a discussion of the "Basis of Design" that explains the intended seismic response characteristics of each structural system
Improving the consistency, clarity and completeness of how each structural system treats all aspects of the seismic design and detailing
Adding requirements for two cantilever column systems to be consistent with other systems in these Provisions and the seismic design parameters ASCE/SEI 7-10
Adding analysis requirements to address the inelastic response of special concentrically braced frames
Modifying the connection requirements for braced frame systems to ensure that the expected deformation demands can be accommodated
Adding requirements for the use of box-shaped link beams in eccentrically braced frames
Adding requirements for the use of perforated plates in special plate shear walls
Significantly increasing the detail for the design requirements of composite systems, such that they are consistent with structural steel systems
Incorporating AWS D1.8/D1.8M by reference for welding related issues
By The AISC Committee on Specifications, Task Committee 9
Clarifying the intended combination of this document with the provisions of ACI 318 for composite construction systems
Establishing a new chapter on analysis requirements that applies to all systems
Adding terms to clearly identify the level of ductile response capable of various members in the seismic force resisting system (SFRS)
Adding language to clarify the design of members and connections that are not part of the SFRS for deformation compatibility
Including a discussion of the "Basis of Design" that explains the intended seismic response characteristics of each structural system
Improving the consistency, clarity and completeness of how each structural system treats all aspects of the seismic design and detailing
Adding requirements for two cantilever column systems to be consistent with other systems in these Provisions and the seismic design parameters ASCE/SEI 7-10
Adding analysis requirements to address the inelastic response of special concentrically braced frames
Modifying the connection requirements for braced frame systems to ensure that the expected deformation demands can be accommodated
Adding requirements for the use of box-shaped link beams in eccentrically braced frames
Adding requirements for the use of perforated plates in special plate shear walls
Significantly increasing the detail for the design requirements of composite systems, such that they are consistent with structural steel systems
Incorporating AWS D1.8/D1.8M by reference for welding related issues
By The AISC Committee on Specifications, Task Committee 9