Summary of Task Order Projects : 21 - 25
Task Order 21 – Analysis of Seismic Performance of Reinforced Concrete Buildings in the 2010 Chile Earthquake, Including Effects of Non-Seismic-Force-Resisting Building Structural Elements
The primary objective of this task is to:
(1) Conduct an evaluation of critical issues in the design of reinforced concrete walls and development of improved wall design requirements;
(2) Conduct research on the effects of non-seismic-force-resisting building structural elements on building performance;
(3) Engage a Project Review Panel to provide technical support for the NIST BFRL research project, Evaluation of Reinforced Concrete Wall Models for Seismic Response; and
(4) Engage a Project Review Panel to provide technical support for the NIST BFRL research project, Observations from the 2010 Chilean Earthquake and their effects on U.S. Building Code Seismic Provisions for Structural Irregularities and Vertical Design Lateral Force Distribution for Mid- to High-Rise Buildings. [more]
Task Order 22 – Development of a Collapse Indicator Methodology for Existing Reinforced Concrete Buildings
The primary objective of Task Order 22 is to initiate the first phase of work related to the development of a collapse indicator methodology, which is a key outcome of the recommended program. Work to be carried out under this task order includes: (1) project management and oversight, including the selection and confirmation of key project personnel; (2) preparation of a Project Work Plan; (3) update of a NIST project description; (4) identification of critical concrete building deficiencies and mitigation strategies; (5) selection of building prototypes; (6) identification of ground motions and component models for collapse simulation; (7) preparation of a project report; and (8) presentation of in-person progress reviews with NIST representatives. [more]
Task Order 23 - Analysis, Modeling, and Simulation for Performance-Based Seismic Engineering
The primary objective of this task is to develop a comprehensive, concise, long-range Nonlinear Analysis Study and Development Program to establish best-practice guidelines for practitioners to conduct nonlinear analysis, structural modeling, and computer simulation for seismic applications and to support the on-going the development and implementation of PBSE. The plan will focus on analysis software tools that are amenable to use in engineering practice, including both commercial and research software that is currently available or likely to become available for practice in the near future. The project will also explore important needs to help establish a road map to analysis capabilities that may require longer term efforts to achieve. [more]
Task Order 24 - Development of Technical Brief on Structural Design Issues – Seismic Design of Reinforced Concrete Mat Foundations
The primary objective of Task Order 24 is to produce a new techbrief addressing Reinforced Concrete Mat Foundations (RCMF) for structures that must resist lateral forces resulting from inertial effects in earthquakes. This techbrief will be a synthesis of model building code requirements and leading practitioner-recognized techniques, resulting in clear and concise analysis, design, and construction guidance for use by practicing structural engineers. [more]
Task Order 25 - Use of High-Strength Flexural Reinforcement in Reinforced Concrete Seismic Design
The primary objective of this task is to perform the work required to study and make recommendations concerning the utilization of high-strength steel reinforcing bars in concrete structures subjected to earthquake ground motion. Work will investigate the potential savings in construction costs and time, and will review available information in the literature regarding potential difference in behavior. [more]
