table of contents :
1- Roof Decks
2- Form Decks
3- Composite Floor Decks
4- General Deck Information
5- SDI Specifications for Roof Deck
6- SDI Specifications for Non-Composite Floor Deck
7- SDI Specifications for Composite Floor Deck
8- Roof Deck Diaphragm Shear
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Seismic Design of Reinforced Concrete Mat Foundations
Author: Ron Klemencic, Ian S. McFarlane, Neil M. Hawkins, Sissy Nikolaou | Size: 2.01 MB | Format:PDF | Quality:Original preprint | Publisher: NEHRP Consultants Joint Venture, Applied Technology Council (ATC) and the Consortium of Universities for Research in Earthquake Engineering (CUREE) | Year: 2012 | pages: 33
Seismic design of reinforced concrete mat foundations has advanced significantly in the last twenty years. As analytical capabilities have improved, primarily in the form of finite element analysis, the mathematical modeling of these continuous structural elements has led to seemingly more precise designs. Yet, fundamental questions still remain regarding the seismic performance of these thick foundation
systems.
This Technical Brief attempts to address what is known and what is unknown about this subject, so that a structural engineer can proceed with a seismic design in an informed manner. Because many of the parameters associated with a mat foundation design can be highly variable, designs that consider this variability are encouraged.
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SOIL NAILING FIELD INSPECTORS MANUAL -- SOIL NAIL WALLS
Author: Porterfield, J A Cotton, D M Byrne, R J | Size: 5.92 MB | Format:PDF | Quality:Original preprint | Publisher: Golden Associates, Incorporated | Year: 1994 | pages: 115
The purpose of this manual is to provide field inspectors with the knowledge necessary to effectively monitor and document the construction of soil nail retaining walls. The manual provides information useful to both the experienced and inexperienced soil nail inspector. The manual is organized into two main parts: Preconstruction Preparation and Construction Inspection. Checklists are provided throughout the Construction Inspection sections of the manual which summarize key items discussed in the text. The inspector is encouraged to copy the checklists for use during construction. Appendix A contains blank forms that can be used for proper documentation and testing during soil nail wall construction. Appendix B contains examples of completed forms. Construction inspectors and engineers from California, Oregon, Texas, and Washington State departments of transportation contributed to this manual. The International Association of Foundation Drilling also provided input from the industry perspective.
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Geotechnical Engineering Circular No. 3:
Design Guidance: Geotechnical Earthquake Engineering for Highways,
Volume II - Design Examples
Author: Kavazanjian Jr, E Matasovic, N Hadj-Hamou, T Sabatini, P J | Size: 7.82 MB | Format:PDF | Quality:Original preprint | Publisher: GeoSyntec Consultants | Year: 1997 | pages: 182
This document presents a series of five design examples illustrating the principles and methods of geotechnical earthquake engineering and seismic design for highway facilities. These principles and methods are described in Volume I - Design Principles, FHWA-SA-97-076. The examples presented in this volume cover a wide range of problems encountered in geotechnical earthquake engineering practice. The design examples presented in this document include: seismic design of a shallow bridge foundation; seismic design of a driven pile bridge foundation; seismic design of a gravity retaining wall based on results of a detailed seismic hazard analysis; seismic slope stability analysis of a cut slope in soft rock; and liquefaction potential analysis.
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SEISMIC ANALYSIS AND DESIGN OF BRIDGE ABUTMENTS CONSIDERING SLIDING AND ROTATION
Author: Fishman, K Richards, R | Size: 3.69 MB | Format:PDF | Quality:Original preprint | Publisher: National Center for Earthquake Engineering Research | Year: 1997 | pages: 88
In this report, the authors update and extend the coupled equations of motions that appear in the literature. A newly developed fundamental theory on seismic bearing capacity of soils was ued to compute the seismic resistance of bridge abutments and the resisting moment offered by the foundation soil. Also, the equations presented have been extended to consider the case of bridge abutments and load transfer from the bridge decks. Algorithms for predicting permanent deformations were applied to a number of test cases that were modeled in the laboratory. Model bridge abutments were constructed within a seismic testing chamber, and seismic loading was applied to the models via a shaking table. Compared to previous studies described in the literature, the models were unique in the sense that they were not constrained to a particular mode of failure. Failure was possible by sliding, tilting or a combination of both. The mode of failure could be accurately predicted and depended on model parameters and properties of the backfill and foundation soil.
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CENTRIFUGE MODELING OF LATERALLY LOADED BATTERED PILE GROUPS IN SAND
Author: McVay, M C University of Florida, Gainesville Gardner, R ZHANG, L | Size: 6.68 MB | Format:PDF | Quality:Original preprint | Publisher: University of Florida, Gainesville | Year: 1997 | pages: 258
This research is part of an on-going study of the effects of ship impact loads on waterway structures underlain by pile foundations. The objectives of this research are: (1) To modify the existing pile driver and make it capable of driving 3 by 3 and 4 by 4 battered pile groups in flight onto a base plate and achieve fixed head conditions at the pile cap; (2) To instrument each of the piles in both groups to measure shear and axial force and bending moment; (3) To conduct the lateral load tests in samples with relative densities of 36% and 55% and also to test with dead loads equivalent to 20%, 50%, and 80% of the vertical capacity of the model pile group; (4) To analyze the effect of dead load on the lateral capacity at different relative densities; (5) To gather data about the internal force distribution of the pile groups and to investigate the pattern of pile group rotation; and (6) To use measured test data to validate a coupled bridge superstructure-foundation finite-element-code (FLORIDA-PIER).
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