04 release notes 3.0.7
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The release notes describe modifications made to the detailing of reinforcement in various types of tanks in ESRGSR 3.0.7, including bottom ring beams, Intze tanks, conical tanks, cylindrical and rectangular ESR tanks, cylindrical and rectangular GSR tanks, and slab beam tanks. The release also includes demo examples in a new Examples folder on the accompanying CD.
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03 release notes 3.0.6
The release notes describe modifications made to the design and reinforcement detailing of various tank components in ESRGSR 3.0.6, including the bottom ring beam, Intze tanks, conical tanks, cylindrical and rectangular ESR tanks, and cylindrical and rectangular GSR tanks. The update also includes demo examples on the CD in a new Examples folder.
02 release notes 3.0.5
The release notes summarize new features for ESRGSR 3.0.5, including introducing flat slab designs for cylindrical tanks, reformatted flat slab reports, rectangular or circular columns for flat slabs, inclusion of hydrodynamic pressures in conical tanks, updated earthquake loads, addition of catwalks, grid line setting options, shaft supports for cylindrical tanks, upward seismic forces in uplift checks for GSR, fixes to errors in GSR reports, and inclusion of demo examples.
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The document discusses options for reducing recoil in the Barrett Model 82A1/XM107 and XM109 rifles. It identifies four main options: reducing muzzle velocity, increasing recoiling mass, improving muzzle brakes, and modifying the weapon mechanism. Firing from an open bolt is proposed to reduce recoil energy by generating forward momentum, though it may reduce accuracy. Prototype testing will quantify the tradeoff between open and closed bolt firing. The conclusion is that the rifle design allows flexibility to modify performance through simple changes.
05 release notes 3.0.8
New pile foundation types have been added including bored and driven cast-in-situ and precast piles, and piles can now be designed as friction, end bearing, or both. Different concrete grades can be assigned for column design, modifications were made to staircases in cylindrical ESRs, predefined capacity calculation was added for Intze tanks, and several bugs were fixed regarding column properties, floor name display, BRB depth in Intze tanks, and adding a wall as beam feature for cylindrical tanks.
Composite Leaf Spring
This document discusses the design and analysis of a composite leaf spring to replace a conventional steel leaf spring. It begins with an abstract that outlines the motivation to replace steel with composite materials for leaf springs due to composites' high strength to weight ratio, corrosion resistance, and tailorable properties. The document then reviews the working principles of multi-leaf steel springs and the potential benefits of using composite materials. It discusses previous studies on composite leaf spring design and analysis. The remainder of the document outlines the applications of leaf springs, provides a brief history of leaf spring varieties, and describes the manufacturing process of leaf springs.
STATIC AND MODAL ANALYSIS OF LEAF SPRING USING FEA
STATIC AND MODAL ANALYSIS OF LEAF SPRING USING FEAInternational Journal of Technical Research & Application
The objective of this present work is to estimate
the deflection, stress and mode frequency induced in the leaf
spring of an army jeep design by the ordinance factory. The
emphasis in this project is on the application of computer aided
analysis using finite element concept.
The leaf spring, which we are analyzing, is a specially
designed leaf spring used in military jeeps. This spring is
intended to bare heavy jerks and vibrations reduced during
military operations. A model of such jeep has been shown in this
project report.
In analysis part the finite element of leaf spring is created
using solid tetrahedron elements, appropriate boundary
conditions are applied, material properties are given and loads
are applied as per its design, the resultant deformation, mode
frequencies and stresses obtained are reported and discussed03 release notes 3.0.6
The release notes describe modifications made to the design and reinforcement detailing of various tank components in ESRGSR 3.0.6, including the bottom ring beam, Intze tanks, conical tanks, cylindrical and rectangular ESR tanks, and cylindrical and rectangular GSR tanks. The update also includes demo examples on the CD in a new Examples folder.
08 release notes struds 2007
Major enhancements were made to 3D modeling, rendering, loads, structural design, and file interoperability in STAAD.Pro. Key updates include selection and editing in 3D view, improved 3D rendering, displaying loads in 3D, notional wind load generation, floor loading commands, modifying shear walls, and column orientation to any angle. Beam design was improved to modify beams when minimum stirrup spacing is not met.
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03 release notes 3.0.6
The release notes describe modifications made to the design and reinforcement detailing of various tank components in ESRGSR 3.0.6, including the bottom ring beam, Intze tanks, conical tanks, cylindrical and rectangular ESR tanks, and cylindrical and rectangular GSR tanks. The update also includes demo examples on the CD in a new Examples folder.
02 release notes 3.0.5
The release notes summarize new features for ESRGSR 3.0.5, including introducing flat slab designs for cylindrical tanks, reformatted flat slab reports, rectangular or circular columns for flat slabs, inclusion of hydrodynamic pressures in conical tanks, updated earthquake loads, addition of catwalks, grid line setting options, shaft supports for cylindrical tanks, upward seismic forces in uplift checks for GSR, fixes to errors in GSR reports, and inclusion of demo examples.
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The document discusses options for reducing recoil in the Barrett Model 82A1/XM107 and XM109 rifles. It identifies four main options: reducing muzzle velocity, increasing recoiling mass, improving muzzle brakes, and modifying the weapon mechanism. Firing from an open bolt is proposed to reduce recoil energy by generating forward momentum, though it may reduce accuracy. Prototype testing will quantify the tradeoff between open and closed bolt firing. The conclusion is that the rifle design allows flexibility to modify performance through simple changes.
05 release notes 3.0.8
New pile foundation types have been added including bored and driven cast-in-situ and precast piles, and piles can now be designed as friction, end bearing, or both. Different concrete grades can be assigned for column design, modifications were made to staircases in cylindrical ESRs, predefined capacity calculation was added for Intze tanks, and several bugs were fixed regarding column properties, floor name display, BRB depth in Intze tanks, and adding a wall as beam feature for cylindrical tanks.
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This document discusses the design and analysis of a composite leaf spring to replace a conventional steel leaf spring. It begins with an abstract that outlines the motivation to replace steel with composite materials for leaf springs due to composites' high strength to weight ratio, corrosion resistance, and tailorable properties. The document then reviews the working principles of multi-leaf steel springs and the potential benefits of using composite materials. It discusses previous studies on composite leaf spring design and analysis. The remainder of the document outlines the applications of leaf springs, provides a brief history of leaf spring varieties, and describes the manufacturing process of leaf springs.
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STATIC AND MODAL ANALYSIS OF LEAF SPRING USING FEAInternational Journal of Technical Research & Application
The objective of this present work is to estimate
the deflection, stress and mode frequency induced in the leaf
spring of an army jeep design by the ordinance factory. The
emphasis in this project is on the application of computer aided
analysis using finite element concept.
The leaf spring, which we are analyzing, is a specially
designed leaf spring used in military jeeps. This spring is
intended to bare heavy jerks and vibrations reduced during
military operations. A model of such jeep has been shown in this
project report.
In analysis part the finite element of leaf spring is created
using solid tetrahedron elements, appropriate boundary
conditions are applied, material properties are given and loads
are applied as per its design, the resultant deformation, mode
frequencies and stresses obtained are reported and discussed03 release notes 3.0.6
The release notes describe modifications made to the design and reinforcement detailing of various tank components in ESRGSR 3.0.6, including the bottom ring beam, Intze tanks, conical tanks, cylindrical and rectangular ESR tanks, and cylindrical and rectangular GSR tanks. The update also includes demo examples on the CD in a new Examples folder.
08 release notes struds 2007
Major enhancements were made to 3D modeling, rendering, loads, structural design, and file interoperability in STAAD.Pro. Key updates include selection and editing in 3D view, improved 3D rendering, displaying loads in 3D, notional wind load generation, floor loading commands, modifying shear walls, and column orientation to any angle. Beam design was improved to modify beams when minimum stirrup spacing is not met.
08 release notes esrgsr 3.3
The document introduces a new type of tank with a dome center and slab beam periphery. It provides DXF output files for different tank designs that can now be opened in AutoCAD without loading additional files, including Intze, conical, cylindrical, rectangular, cylindrical GSR and rectangular GSR tank designs. Modifications were also made to allow user-defined pile design capacity and fix issues with editing seismic and wind load parameters.
07 release notes for esrgsr 3.2
The release notes for ESRGSR 3.2 include: 1) Implementation of a new standard for calculating the total weight, lateral forces, impulsive and convective masses of liquid retaining structures for both empty and full tank conditions. 2) Changes made to grid values for slab beam type tanks. 3) Changes made to column editing for cylindrical type tanks. 4) Modification to the minimum steel requirements for flat slab detailing.
05 release notes 3.0.8
New pile foundation types have been added including bored and driven cast-in-situ and precast piles, and piles can now be designed as friction, end bearing, or both. Different concrete grades can be assigned for column design, modifications were made to staircases in cylindrical ESRs, predefined capacity calculation was added for Intze tanks, and several bugs were fixed regarding column properties, floor name display, BRB depth in Intze tanks, and a wall as beam feature for cylindrical tanks.
02 release notes 3.0.5
The release notes summarize new features for ESRGSR 3.0.5, including introducing flat slab designs for cylindrical tanks, adding rectangular or circular column options for flat slabs, including hydrodynamic pressures for conical tanks, incorporating earthquake loads per IS 1893:2002, allowing for catwalks along tank perimeters, and fixing various bugs in reports and calculations.
01 release note 3.1.0
This release note describes updates made in version 3.1.0, including fixing issues with initializing data generation, saving dead storage values, including wall load in bottom beam calculations, completing dynamic analysis reports, and solving problems with abnormal program termination when opening or reopening files in different modules, showing improper reinforcement parameters, performing foundation design, and applying wind load after dynamic analysis.
06 release notes 3.0.9
This release notes document summarizes updates made in version 3.0.9 of the ESRGSR software. The updates include: fixing a bug in wall thickness design for rectangular tanks with flat slabs; resolving an issue where cylindrical tank height was incorrectly replaced by design height in container properties; and solving an error that occurred in cylindrical tanks with top slab beams due to a small grid size.
14 struds 2010 (Aug release)
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13 struds 2010 (Jan. release)
The document describes several new features and enhancements in the software related to modeling, analysis, and design of structural elements. Key features include the ability to design column connections at beam ends, add extra steel to beams, edit beams grid-wise, import DXF files layer-wise, set default paths for AutoCAD and Excel, save load combinations, create slabs by selecting regions, enhance 3D viewing and editing, add predefined trusses, and view all floors and levels by default in the postprocessor.
12 release notes struds 2009 (Aug. release)
This document describes several new features and improvements in the latest version of STRUDS software. Some key points include:
1) A new graphical interface with unlimited redo-undo options for geometry creation.
2) The ability to move slabs, elements, and nodes during modeling.
3) Using the Complete Quadratic Combination method for modal combinations in generation of earthquake loads.
4) Consideration of column offset and wide column effects in the design of beams and calculation of moments and shear forces.
11 release notes struds 2009 (Jan release)
The document describes several new features and improvements to the STRUDS software. Some key additions include the ability to import and export files with ETABS, new options for perpendicular snapping and window selection in column modeling, and the implementation of Fe550 grade steel in structural designs. Improvements were also made to DXF drawings for beams, slabs, columns, shear walls, and footings.
09 struds 2008 Jan release
Animation has been added to visualize structural behavior under earthquake loads. Users can identify weak elements by viewing the animation and strengthen elements by increasing their stiffness. Modal mass and participation factors are introduced as per IS 1893 to calculate effective seismic weight and contribution of each mode. Distribution of earthquake loads on columns and walls is reported floor-wise and for the whole structure. Beam, column and footing detailing and quantity reports are now available in HTML format, and DXF outputs are improved with no overlapping text. User interaction is added for DXF layer and dimension specifications.
07 release notes 2005
The document provides release notes for STRUDS 2005 software. Major updates include:
1) Complete integration of all modules (pre/post-processing, analysis, design) allowing toggling between modes within a single file.
2) Introduction of L-shaped and T-shaped column design and analysis as well as shear wall design/analysis.
3) Enhancements to the preprocessor including load definition and a collapsible tree menu for entity creation/editing.
06 release document_8.9.2
The 8.9.2 release notes summarize updates made to the preprocessor, postprocessor, RCC design modules. Key changes include modifications to section property dialogs in preprocessing, corrections to trapezoidal slab design and deflection check reporting in slabs, updated unit conversions in beam and column design reports, and modified footing area calculations in footing design reports.
05 release document_8.9.1
The release notes summarize updates to the version 8.9.1 modeling and design software. In the preprocessor, front end optimizations for master-slave modeling were implemented along with other modeling enhancements. For R.C.C. design, slab design calculations now better account for provided steel ratios and trapezoidal footings can now be designed with eccentricity. Truss element numbering bugs were also addressed.
04 release document_8.9
1. The STRIDS 8.9 release notes summarize updates to the preprocessor, including adding consideration of rigid floor diaphragm action, compatibility with seismic standards, and options for importing/exporting DXF files.
2. Updates to the post-processor include improved slab design for partially continuous edges and corrected steel schedules. Beam design was updated with options for bar diameter selection and added HTML reports.
3. Updates in footing design include combined effects of pressures considered for moment and shear calculations in combined footings, and steel calculated for shear. Drafting changes allow DXF output of footing plans and sections.
03 release document_8.8.1
1. Version 8.8.1 of the STRUDS software includes several new options and enhancements for preprocessors, postprocessors, RCC design modules, and drafting.
2. New preprocessor options allow renumbering of inclined elements, releasing column elements below a level, and defining soft storeys and vertical earthquake forces on selected elements.
3. Postprocessor enhancements include displaying the current load combination in the status bar and adding unit display and scrolling to element charts.
02 release document_8.8
The 8.8 version release notes provide updates across multiple modules of the software. Key changes include: 1) Unique IDs will now be displayed for all elements and can be toggled on/off; 2) Users can modify unique IDs and renumber elements. Additional changes were made to the preprocessor, postprocessor, truss define, RCC design, slab design, beam design, column design, and footing design modules. Various bugs were fixed and new options were added to improve the user experience.
01 release document_8.7.1
This release note summarizes new features and fixes for version 8.7.1 of the structural analysis and design software. Key changes include:
1) Improved load generation and handling for slabs, wind loads, and member releases.
2) Enhancements to beam, column, and footing design reports including dynamic report generation and selection of report details.
3) Fixes to load combinations, ductile detailing options, analysis and design modules, file backups, and drafting outputs.
4) New options added for trapezoidal loads, flexural moments, torsional moments on elements while others have been temporarily removed.
10 release notes struds 2008 August release
- Grid lines can now be generated uniformly or at an incline with various options to aid modeling geometry in STRUDS. Grid lines can also be edited as required.
- ETABS files and analysis files can now be imported into and exported from STRUDS.
- Slab design parameters now allow factors to be set for top and bottom steel detailing.
- Pattern loading is implemented, applying live loads on alternate and adjoining spans, and beam design considers worst load combinations.
- Maximum bar length and layers can now be set in beam design parameters to aid reinforcement detailing.
07 release notes for esrgsr 3.2
The release notes for ESRGSR 3.2 include: 1) Implementation of a new standard for calculating the total weight, lateral forces, impulsive and convective masses of liquid retaining structures for both empty and full tank conditions. 2) Changes made to grid values for slab beam type tanks. 3) Changes to column editing for cylindrical tanks. 4) Modification to the minimum steel requirements for flat slab detailing.
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The document introduces a new type of tank with a dome center and slab beam periphery. It provides DXF output files for different tank designs that can now be opened in AutoCAD without loading additional files, including Intze, conical, cylindrical, rectangular, cylindrical GSR and rectangular GSR tank designs. Modifications were also made to allow user-defined pile design capacity and fix issues with editing seismic and wind load parameters.
07 release notes for esrgsr 3.2
The release notes for ESRGSR 3.2 include: 1) Implementation of a new standard for calculating the total weight, lateral forces, impulsive and convective masses of liquid retaining structures for both empty and full tank conditions. 2) Changes made to grid values for slab beam type tanks. 3) Changes made to column editing for cylindrical type tanks. 4) Modification to the minimum steel requirements for flat slab detailing.
05 release notes 3.0.8
New pile foundation types have been added including bored and driven cast-in-situ and precast piles, and piles can now be designed as friction, end bearing, or both. Different concrete grades can be assigned for column design, modifications were made to staircases in cylindrical ESRs, predefined capacity calculation was added for Intze tanks, and several bugs were fixed regarding column properties, floor name display, BRB depth in Intze tanks, and a wall as beam feature for cylindrical tanks.
02 release notes 3.0.5
The release notes summarize new features for ESRGSR 3.0.5, including introducing flat slab designs for cylindrical tanks, adding rectangular or circular column options for flat slabs, including hydrodynamic pressures for conical tanks, incorporating earthquake loads per IS 1893:2002, allowing for catwalks along tank perimeters, and fixing various bugs in reports and calculations.
01 release note 3.1.0
This release note describes updates made in version 3.1.0, including fixing issues with initializing data generation, saving dead storage values, including wall load in bottom beam calculations, completing dynamic analysis reports, and solving problems with abnormal program termination when opening or reopening files in different modules, showing improper reinforcement parameters, performing foundation design, and applying wind load after dynamic analysis.
06 release notes 3.0.9
This release notes document summarizes updates made in version 3.0.9 of the ESRGSR software. The updates include: fixing a bug in wall thickness design for rectangular tanks with flat slabs; resolving an issue where cylindrical tank height was incorrectly replaced by design height in container properties; and solving an error that occurred in cylindrical tanks with top slab beams due to a small grid size.
14 struds 2010 (Aug release)
This document summarizes new features and enhancements in the STRUDS structural analysis and design software, including improved 3D visualization, direct import of CAD plans, automatic mesh generation, stress contour visualization, modeling of industrial structures, improved seismic and slab design, minor bug fixes, and more.
13 struds 2010 (Jan. release)
The document describes several new features and enhancements in the software related to modeling, analysis, and design of structural elements. Key features include the ability to design column connections at beam ends, add extra steel to beams, edit beams grid-wise, import DXF files layer-wise, set default paths for AutoCAD and Excel, save load combinations, create slabs by selecting regions, enhance 3D viewing and editing, add predefined trusses, and view all floors and levels by default in the postprocessor.
12 release notes struds 2009 (Aug. release)
This document describes several new features and improvements in the latest version of STRUDS software. Some key points include:
1) A new graphical interface with unlimited redo-undo options for geometry creation.
2) The ability to move slabs, elements, and nodes during modeling.
3) Using the Complete Quadratic Combination method for modal combinations in generation of earthquake loads.
4) Consideration of column offset and wide column effects in the design of beams and calculation of moments and shear forces.
11 release notes struds 2009 (Jan release)
The document describes several new features and improvements to the STRUDS software. Some key additions include the ability to import and export files with ETABS, new options for perpendicular snapping and window selection in column modeling, and the implementation of Fe550 grade steel in structural designs. Improvements were also made to DXF drawings for beams, slabs, columns, shear walls, and footings.
09 struds 2008 Jan release
Animation has been added to visualize structural behavior under earthquake loads. Users can identify weak elements by viewing the animation and strengthen elements by increasing their stiffness. Modal mass and participation factors are introduced as per IS 1893 to calculate effective seismic weight and contribution of each mode. Distribution of earthquake loads on columns and walls is reported floor-wise and for the whole structure. Beam, column and footing detailing and quantity reports are now available in HTML format, and DXF outputs are improved with no overlapping text. User interaction is added for DXF layer and dimension specifications.
07 release notes 2005
The document provides release notes for STRUDS 2005 software. Major updates include:
1) Complete integration of all modules (pre/post-processing, analysis, design) allowing toggling between modes within a single file.
2) Introduction of L-shaped and T-shaped column design and analysis as well as shear wall design/analysis.
3) Enhancements to the preprocessor including load definition and a collapsible tree menu for entity creation/editing.
06 release document_8.9.2
The 8.9.2 release notes summarize updates made to the preprocessor, postprocessor, RCC design modules. Key changes include modifications to section property dialogs in preprocessing, corrections to trapezoidal slab design and deflection check reporting in slabs, updated unit conversions in beam and column design reports, and modified footing area calculations in footing design reports.
05 release document_8.9.1
The release notes summarize updates to the version 8.9.1 modeling and design software. In the preprocessor, front end optimizations for master-slave modeling were implemented along with other modeling enhancements. For R.C.C. design, slab design calculations now better account for provided steel ratios and trapezoidal footings can now be designed with eccentricity. Truss element numbering bugs were also addressed.
04 release document_8.9
1. The STRIDS 8.9 release notes summarize updates to the preprocessor, including adding consideration of rigid floor diaphragm action, compatibility with seismic standards, and options for importing/exporting DXF files.
2. Updates to the post-processor include improved slab design for partially continuous edges and corrected steel schedules. Beam design was updated with options for bar diameter selection and added HTML reports.
3. Updates in footing design include combined effects of pressures considered for moment and shear calculations in combined footings, and steel calculated for shear. Drafting changes allow DXF output of footing plans and sections.
03 release document_8.8.1
1. Version 8.8.1 of the STRUDS software includes several new options and enhancements for preprocessors, postprocessors, RCC design modules, and drafting.
2. New preprocessor options allow renumbering of inclined elements, releasing column elements below a level, and defining soft storeys and vertical earthquake forces on selected elements.
3. Postprocessor enhancements include displaying the current load combination in the status bar and adding unit display and scrolling to element charts.
02 release document_8.8
The 8.8 version release notes provide updates across multiple modules of the software. Key changes include: 1) Unique IDs will now be displayed for all elements and can be toggled on/off; 2) Users can modify unique IDs and renumber elements. Additional changes were made to the preprocessor, postprocessor, truss define, RCC design, slab design, beam design, column design, and footing design modules. Various bugs were fixed and new options were added to improve the user experience.
01 release document_8.7.1
This release note summarizes new features and fixes for version 8.7.1 of the structural analysis and design software. Key changes include:
1) Improved load generation and handling for slabs, wind loads, and member releases.
2) Enhancements to beam, column, and footing design reports including dynamic report generation and selection of report details.
3) Fixes to load combinations, ductile detailing options, analysis and design modules, file backups, and drafting outputs.
4) New options added for trapezoidal loads, flexural moments, torsional moments on elements while others have been temporarily removed.
10 release notes struds 2008 August release
- Grid lines can now be generated uniformly or at an incline with various options to aid modeling geometry in STRUDS. Grid lines can also be edited as required.
- ETABS files and analysis files can now be imported into and exported from STRUDS.
- Slab design parameters now allow factors to be set for top and bottom steel detailing.
- Pattern loading is implemented, applying live loads on alternate and adjoining spans, and beam design considers worst load combinations.
- Maximum bar length and layers can now be set in beam design parameters to aid reinforcement detailing.
07 release notes for esrgsr 3.2
The release notes for ESRGSR 3.2 include: 1) Implementation of a new standard for calculating the total weight, lateral forces, impulsive and convective masses of liquid retaining structures for both empty and full tank conditions. 2) Changes made to grid values for slab beam type tanks. 3) Changes to column editing for cylindrical tanks. 4) Modification to the minimum steel requirements for flat slab detailing.
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04 release notes 3.0.7
- 1. Release Notes 3.0.7.txt Release notes for ESRGSR 3.0.7 1. Design of bottom ring beam is modified. 2. Detailing of reinforcement in Intze tanks is modified. 3. Detailing of reinforcement in Conical tanks is modified. 4. Detailing of reinforcement in Cylindrical ESR tanks is modified. 5. Detailing of reinforcement in Rectangular ESR tanks is modified. 6. Detailing of reinforcement in Cylindrical GSR tanks is modified. 7. Detailing of reinforcement in Rectangular GSR tanks is modified. 8. Grid value related changes in Slab Beam type of tank are made. 9. Demo Examples are included in the CD with folder named as "ESRGSRExamples" Page 1