Standard Practice For Direct Design Of Precast Concrete Box Sections For Jacking In Trenchless Construction Asce 28 00 General Part 2 Direct Design Method For Jacked Precast Concrete Box Section Installations Appendix A Manufacturing Specification For Precast Concrete Box Sections For Jacking In Trenchless Construction Appendix B Guidelines For Jacking Operations Appendix C Guidelines For Estimating Required Jacking Force Appendix D Si Units For Notation And Equations Commentary
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Standard Practice for Direct Design of Precast Concrete Box Sections for Jacking in Trenchless Construction (ASCE 28-00).: General; Part 2 Direct Design Method for Jacked Precast Concrete Box Section Installations; Appendix A Manufacturing Specification for Precast Concrete Box Sections for Jacking in Trenchless Construction; Appendix B Guidelines for Jacking Operations; Appendix C Guidelines for Estimating Required Jacking Force; Appendix D SI Units for Notation and Equations; Commentary
Standard Practice for Direct Design of Precast Concrete Box Sections for Jacking in Trenchless Construction provides the latest in design and recommended installation procedures for precast concrete box sections for jacking in trenchless construction intended for the conveyance of sewage, industrial wastes, storm water and drainage, as well as for utilities and access ways. The Direct Design method accounts for the interaction between the box section and soil or grout envelope in determining loads and distribution of earth pressure on buried box sections, in addition to longitudinal loads due to jacking. The loads and pressure distributions are used to calculate circumferential moment, thrust, and shear in the wall/slab to determine required reinforcement. The design criteria include: structural aspects, such as circumferential flexure, thrust, and shear strengths; crack width control; longitudinal thrust produced by jacking; and handling and installation.
Standard Practice for Direct Design of Precast Concrete Box Sections for Jacking in Trenchless Construction
Author: American Society of Civil Engineers
language: en
Publisher: Amer Society of Civil Engineers
Release Date: 2001
This Standard provides the latest in design and recommended installation procedures for precast concrete box sections for jacking in trenchless construction intended for the conveyance of sewage, industrial wastes, storm water and drainage, and for utilities and access ways. The Direct Design Method accounts for the interaction between the box section and soil or grout envelope in determining loads and distribution of earth pressure on buried box sections in additions to longitudinal loads due to jacking. The loads and pressure distributions are used to calculate circumferential moment, thrust, and shear in the wall/slab to determine required reinforcement. The design criteria include: structural aspects, such as circumferential flexure, thrust, and shear strengths; crack width control; longitudinal thrust produced by jacking; and handling and installation.
Standard Practice for Direct Design of Buried Precast Concrete Box Sections (ASCE 26-97).: General; Part 2 Direct Design Methods; Part 3 Construction of Precast Concrete Box Section Systems; Appendix A SI Units for Notation and Equations; Commentary
Standard Practice for Direct Design of Buried Precast Concrete Box Sections covers the direct design of buried one-cell precast reinforced concrete box sections to convey sewage, industrial wastes, storm water and drainage, as well as to serve as tunnels. The design and analysis method accounts for the interaction between the box sections and soil envelope in calculating loads, pressure distributions, moment, thrust and shear in the box section, as well as a procedure for calculating the required reinforcement. Load effects are determined separately for each loading. The design criteria include: structural aspects, such as flexure, thrust, and shear strengths; handling and installation; fatigue limits; and crack width control. The design of a one-cell precast reinforced concrete box section is based on the assumption that specified design bedding and installation requirements will be achieved during construction of the installation. The structural design of one-cell precast reinforced concrete box sections is based on a limits state design procedure that accounts for strength and serviceability criteria and is consistent with the procedures outlined in Section 17 of the AASHTO Standard Specification for Highway Bridges. Owners and owners' engineers will find this Standard useful in preparing contract documents based on the direct design method.