HLR Section 7.1
Reports & Results
| CONTENTS
7.1 | Review Analysis Results
7.2 | Reports
| 7.2.1 | Summary Report (Minute)
| 7.2.2 | Restricted Bridges Only
| 7.2.3 | All Bridges On Route
| 7.2.4 | Vehicle & Route Details
| 7.2.5 | Blank Summary Report
| 7.2.6 | List all Bridge Numbers on Current Route
| 7.2.7 | Log File
| 7.2.8 | Save Application to Database
7.3 | Moment & Shear Envelopes
| 7.3.1 | Factored Values
| 7.3.2 | Raw Values
| Other Links: | Main Index | Job ID | Vehicle Data | Route Data | Analysis |
7.1 Review Analysis Results
| This tab panel permits all restricted structures to be examined and changes to be made to any restriction suggested by HLR. The dialog window will only appear if HLR finds a restriction in any structure along the route. A typical results review panel is shown below. Sufficient information about the structure is displayed in the dialog box in order that an informed decision can be made about the restriction recommended by HLR and any action that you may wish to take to change it.
| Girder/Section Capacities: This indicates the capacity of either the whole structure or part of the structure in question (e.g. girders). It may show moments (ultimate or working), shears, reactions or the allowable Moment Ratio. Corresponding vehicle effects will be displayed in the lower frame. Note that if two moment capacity sets have been specified for the structure and the second set is used to analyse another girder it will be reported as such. If the second capacity set is used for the 5kph check it will also be reported in an appropriate way. If a Working Stress check has been performed on the structure the Working Overload moment will be shown together with the Working Overload Factor used in the analysis (echoed from the Analysis Options form). Vehicle Effects: These values will either be moments (M1, M2, M3), shears (V1, V2, V3), reactions (R1, R2, R3) or moment ratios (R1, R2, R3), depending on the nature of the check perform. The three values represent the calculated heavy load effects for the three notional travel conditions described in Section 6.2.2. The diagram on the right is a visual representation of these three values and permits easy visual comparison with the section capacity. The labels describing the three effects can be customised via the Options/Default Settings menu items. If a Vehicle Reduction Factor (VRF) was specified for the analysis, the following entry will appear in the Comments field if, for some reason, the factor had not been applied: * Vehicle Reduction Factor excluded from analysis. (Note that no other indication is given as to why the factor was excluded). Previous/Next restriction for current structure: For bridges with multiple restrictions these buttons allow you to navigate forwards and backwards through the restriction list. View M,V Envelopes: This button will only appear for continuous structures. It enables both factored and unfactored moment envelopes to be viewed for the strucutre. It will not be shown on the form if the bridge is simply supported. Refer also to Section 7.3 for details. Change Restriction: This button allows the restriction imposed by HLR to be changed (e.g. a restriction of 5 kph centre flagged by HLR can be changed to 10 kph). <Prev | Next>: Move to the previous / next restricted structure in the list. The small buttons at either end allow you to quickly navigate to either the first restricted structure or the very last.
7.2 Reports
| A comprehensive series of reports have been provided with which to view and print results at the conclusion of the analysis. They are accessed via the Reports tab form shown below:
| 7.2.1 Summary Report (Minute) This report lists, in summary form, all structures along the route for which a restriction has been flagged together with the type of restriction found. The report is formatted as a "Minute" and is intended to inform the client of the official results of the assessment. It is fully editable and can be printed to any attached device. If you require the total number of assessed structures to be included in the report, tick the check box at left. Note that structures for which there is incomplete or insufficient geometry, capacity or loading data will not appear in this report. Nor will structures that have been by-passed in the analysis. To view these excluded structures refer to the Restricted Bridges Only or All Bridges on Route options described below. Structures that have been added to the end of the route for ad-hoc analysis will also not be shown in this report. Any restrictions associated with these structures can only be viewed through the View Results tab (Section 7.1 above). For travel in both directions, the Summary Report will show results for both the outward and return trips separately. Although the same structure may appear twice in the report the text can easily be edited to suit your requirements (since it's a WORD document). A copy of the final report is saved to the ..\Database\Reports folder. It is saved as an HTML (browser) file in the form: "HLxxxxx.html" where "xxxxx" is the HL Number entered in the Job ID tab. The file will be read by any version of WORD that supports this file format. 7.2.2 Restricted Bridges Only This button lists, in report form, only those structures along the route for which a restriction was detected. The report can be viewed and printed but not edited. The restriction labels describing the two low-speed effects can be customised via the Options/Default Settings menu item. Any restrictions that were changed in the Review Analysis tab will be displayed in this report in a blue colour and bracketed by asterisks (except for the overload condition which will still be shown in red). e.g. * OK * or *OVERLOADED* or *10kph* Continuous Structures: In the case of continuous structures for which moment capacities are not available, HLR will compare the moment envelopes produced by both the heavy load vehicle and the original design vehicle and insert the words "No capacities" in the right-hand comments field. (In effect the moments produced by the original design vehicle constitute a notional "capacity" for the structure). Ad-Hoc Structures at End of Route: Structures that have been added to the end of the route for ad-hoc analysis will appear under a dummy link called "Additional Structures at the End of the HL Route". For travel in the forward direction this link will be at the end of the report; for travel in the reverse direction the link will appear at the start of the report. Bi-Directional Travel: For travel in both directions, results of the analysis will be included in all reports. To distinguish between structures in each of the two separate directions, the report is divided by a highlighted REVERSE DIRECTION label and the top-hat symbol (^) is appended to structure numbers analysed in the reverse direction. Structure-Specific DFs : If structure-specific distribution factors for a structure are used in the analysis (instead of the default values) they will be displayed in the output report. Vehicle Reduction Factors: If the vehicle reduction factor has been switched on in the Analysis Options form the VRF value will appear in the main report header block. If the factor was not applied to a structure because the necessary criteria were not met the note VRF=1 will be displayed for the given structure together with one of the following words: (Narrow) Indicates that the structure was too narrow for the relationship to apply (Dbase) Indicates that the factor was to be excluded for that structure (Width=0) Indicates that the structure width does not exist or is zero In effect, a Vehicle Reduction Factor of 1 is applied to all structures that do not satisfy the relevant criteria (refer to Section 6.1.7 for a description of this factor and when it is applied). Report Legend If the check box 'Show explanatory notes on bridge reports' is ticked, HLR will display a number of notes at the bottom of the report that define key parameters and explain some of the limitations and restrictions embodied in the report. They include the following: 1. Ratio - This indicates that a ratio check was performed on the structure 2. WSF - Indicates the Working Overload Factor applicable to the displayed moment capacities 3. The second capacity shown in the report represents the value used for the M3/V3/R3 check 4. Restrictions changed in the Preview window are enclosed in asterisks and shown in blue 5. Girder DF's are only shown if extracted from a structure-specific DF table. 6. The ^ symbol indicates that for bi-directional travel the structure was analysed in the reverse direction 7.2.3 All Bridges on Route: This button lists all structures found on the route, including those for which no restrictions were encountered. The report can be viewed and printed but not edited. Simply Supported Structures: If no restrictions are found for multi-span simply supported structures then results for only the first span will be reported (this includes the moment ratio check). If multiple checks are performed on a simply supported structure (both moment and shear, for example) and both checks were found to be OK then only moment capacity results will be reported. If a moment capacity restriction is found but shear is OK then only moment capacity results will be reported - not shear. Continuous Structures: If no restrictions are found HLR will report "All spans OK". For continuous structures for which moment capacities are not available, HLR will compare the moment envelopes produced by both the heavy load vehicle and the original design vehicle. The notional "capacity" becomes, in effect, the moments produced by the original design vehicle. The words "No capacities" are shown in the right-hand comments field to warn you of this situation. Bi-Directional Travel: For travel in both directions, results of the analysis will be included in all reports. To distinguish between structures in each of the two separate directions, the report is divided by a highlighted REVERSE DIRECTION label and the top-hat symbol (^) is appended to structure numbers analysed in the reverse direction. Restricted Structures & DF Factors: Refer also to Section 7.2.2 above for information relating to restricted structures (they will be displayed in the same fashion as described there-in). If structure-specific distribution factors for a structure were used in the analysis (instead of the default values) they will be displayed in the output. Vehicle Reduction Factors: If the vehicle reduction factor has been switched on in the Analysis Options form the VRF value will appear in the main report header block. If the factor was not applied to a structure because the necessary criteria were not met the note VRF=1 will be displayed for the given structure together with one of the following words: (Narrow) Indicates that the structure was too narrow for the relationship to apply (Dbase) Indicates that the factor was to be excluded for that structure (Width=0) Indicates that the structure width does not exist or is zero In effect, a Vehicle Reduction Factor of 1 is applied to all structures that do not satisfy the relevant criteria (refer to Section 6.1.7 for a description of this factor and when it is applied). Report Legend If the check box 'Show explanatory notes on bridge reports' is ticked, HLR will display a number of notes at the bottom of the report that define key parameters and explain some of the limitations and restrictions embodied in the report. They include the following: 1. Ratio - This indicates that a ratio check was performed on the structure 2. WSF - Indicates the Working Overload Factor applicable to the displayed moment capacities 3. The second capacity shown in the report represents the value used for the M3/V3/R3 check 4. Restrictions changed in the Preview window are enclosed in asterisks and shown in blue 5. Girder DF's are only shown if extracted from a structure-specific DF table. 6. The ^ symbol indicates that for bi-directional travel the structure was analysed in the reverse direction 7. For simply supported structures with NO restrictions values are only shown for Span 1 8. For continuous structures with NO restrictions, capacity and results values are not shown 7.2.4 Vehicle & Route Details Current Vehicle Details Displays curent vehicle details in report form, ready for printing. It can not be edited. Current Route Details Displays current route details in report form, ready for printing. It can not be edited. In addition to start and end link numbers and full and abbreviated link names the report includes the total number of structures on each link in the route. This allows links with no structures to be quickly and easily identified. 7.2.5 Blank Summary Report This report is only accessible from the Reports option on the top menu bar. Click this option then select Create a blank summary report (Minute) from the drop-down submenu. A "blank" report will be created that only contains the standard header and footer information together with any Job ID data entered by the user. 7.2.6 List all Bridge Numbers on Current Route: This option is only accessible from the Route menu item. It allows all links and their associated bridge numbers to be displayed in an HTML-formatted report (i.e. the report is viewable and printable but not editable). 7.2.7 Log File Lists the results of the entire analysis in a highly codified way. It is generally only used when developing and debugging the system and not in a production mode (unless you suspect that other reports are not showing correct answers). The report can be edited and printed. 7.2.8 Save Application to Database Applications can be saved to the database for subsequent viewing, perusing and reloading. All job identification, route, vehicle and analysis data associated with the application is saved and can be recovered and re-analysed at a future date. Refer also to Section 6.1 for further details.
7.3 Moment & Shear Envelopes
| Two different envelope types may be viewed and printed for all continuous structures along the route: Factored maximum and minimum moments with corresponding capacity values; or Raw values of both maximum and minimum moments, shears and reactions. 7.3.1 Factored Values This report lists factored maximum and minimum moments (M 1, M 2, M 3) with corresponding moment capacity values at 10th points along each span. 7.3.2 Raw Values This option displays maximum and minimum values of moments at each 10th section along the continuous beam model. Shears and/or reactions will also be shown if the data file contains a shear or reaction check specification (refer to Section 6.2 - 6.4 for details) i.e., the full envelope of each result vector as calculated by the analysis module will be tabulated. Calculations are based on the reduced vehicle axle loads and with the vehicle travelling in the correct relative direction across the structure. Distribution factors and Dynamic Load Allowance are not included in the analysis. The vehicle is moved in increments of 1/20th span length across the structure and a default value of E based on the material type is used in the analysis (e.g. 35,000 for PSC bridges and 200,000 for steel).