GIRDER 3.3.7 DOWNLOAD FREE

Therefore, it is use- ful to consider a signed error measure for the bracing component force calculations. The presence, and correct installation of, cross frames in curved or skewed steel I-girder bridge erection is an important issue. Furthermore, it can be observed that the mode of the scores for these bridge types is a B for the major-axis bending stresses and an A for the vertical displacements. Hence, IC is not used for characterization of tub-girder bridges in the table. Raleigh, NC Donald W.

Uploader:	Shaktishakar
Date Added:	17 December 2014
File Size:	54.89 Mb
Operating Systems:	Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads:	72156
Price:	Free* [*Free Regsitration Required]

The erection procedure should be submitted as soon as possible after the Contract award.

If partial-depth end diaphragms are used, the resulting behavior of the sys- tem needs to be carefully investigated and, in many cases, will require a more refined analysis. He got his master degree in computer science at Leiden University and became one of the most popular reverse engineers.

The presence, and correct installation of, cross frames in curved or skewed steel I-girder bridge erection is an important issue.

Download Télécharger Girder

Furthermore, it can be observed that the mode of the scores for these bridge types is a B for the major-axis bending stresses and an A for the vertical displacements. The plan and procedures shall address all requirements for erection of the structural steel into the final designed configuration and satisfy all written Owner comments prior to the start of erection.

Explicitly indicating all details related to rigging and spreader or lifting beams will help to ensure that the appropriate devices are being properly used in the field. Additional calculations may be required to check that individual cross frame members and connections have adequate capacity. In addition, to the above quantitative assessments, the calculation of bracing component forces in tub-girder bridges is assessed separately in Table 3.

For bolted splice connections of primary members, and bolted connections of diaphragms or girddr frames that brace I-girders, fill at least 50 percent of holes in the connection prior to crane release with either erection bolts in a snug tight condition, or full-size erection pins a. Furthermore, there is only a weak correlation between the accuracy of the simplified analysis calculations and the skew index IS for tub-girder bridges.

Calculations may show that a girder or girder system may not be stable at a certain wind velocity, and this needs to be communicated to the Contractor and Steel Erector via the erection plan. Skewed bridges are particularly vulnerable to twisting about the longitudinal axis girver the girder. The table shows that no unconservative errors were encountered in this calculation for the tub-girder bridges studied in NCHRP Project This document provides recommendations regarding the content of construction plans for curved and skewed steel Gireer bridges.

All cracks and keygens are made by enthusiasts and professional reverse engineers 3.37. Click here to buy this book in print or download it as a free PDF, if available.

- girdercracked-tsrh keygen crack instant download

If appropriate, the erection plans should include instructions and details for temporary support or tie-down of partially completed gigder during high wind conditions. Again, just relax and ignore it. There are no viruses or any exploits on this site, you are on a crack server optimized for surfer.

Any calculations related to evaluation of crane capacity and crane stability also shall be included.

Engineering Services (DES)

Appendix B B Wind loads shall be considered in each step of the steel erection analysis and are to be com- puted in accordance with the established design criteria. The second letter grade indicates the mode of the letter grades for that category, i. It should be noted that the forces in the top struts of the internal cross-frames at exterior diaphragm or exterior cross-frame locations can be very sensitive to the interaction of the external diaphragm or cross-frame with the girders. Therefore, a properly pre- pared conventional 2D-grid analysis would be expected to produce major-axis bending stress and vertical deflection results that compare reasonably well with the results of a second-order elastic 3D FEA, such that the normalized mean error would be expected to be less than or equal to 12 percent.

Télécharger Girder 3.3.7

Appendix B B sidered carefully during design. However, one can expect that for most bridges, the errors will be less than or equal to 6 percent, based on the mode score of A for both of these responses. When appropriate in lieu of a 3D analysis, the guidelines also girrer improvements to 1D and 2D analyses that require little additional computational costs.

The error in 3.3. calculation of the input quantities obtained from the 1D line-girder or the 2D-grid analysis, and 2.

It should be noted that if IC is calculated for an intermediate stage of the steel erection in which some of the cross-frames have not yet been placed, the number of intermediate cross-frames ncf in Eq. Therefore, the engineer can assume that the forces for these components, as determined from a 2D-grid analysis plus the bracing component force equa- tions, are highly conservative.

The illustrative plan view shall be accompanied with a written narrative of the procedure to be followed by the steel erector, which shall clearly state items such as structural components to be erected, use of temporary supports, use of temporary bracing, hold cranes, etc.

It is interesting that the Table 3. Appendix B B The connectivity index, IC does not apply to tub-girder bridges, since this index is primarily a measure of the loss of accuracy in I-girder bridges due to the poor modeling of the girder torsion properties.

Girdeer bridges with unequal skew at the bearing lines, q is taken as the angle of girdee bearing line with the largest skew. It is permissible to set limits on maximum wind velocities during steel erection, but these limits must be clearly stated in the erection plan. As a minimum, the erection plan 33.7 procedures shall include the items cited in the sections that follow.