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  • Users: rubenpezu
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  1. rubenpezu

    Corrosion between SS316 and Duplex 32205

    Dear All, I am trying to find the Galvanic potential of the duplex 32205 respect SS316L. Anyone can help to find it? We need to know if would be corrosion if duplex 32205 and SS316L are in contact and we have to justify. Thanks.
  2. rubenpezu

    Problem creating a steel transmission pole

    Hello, I am modelling a steel transmission pole in solid works to analyze some holes we have to do at grounding level. I try to create de pole from a sketch of 2 octagons and then extrude but I can’t get it. I create doing first and extrude from de octagon and then make a new sketch and make a...
  3. rubenpezu

    Double angle section

    Hello, I am calculating a double-angle sections for a bracing member in a steel lattice tower. My doubt is when I calculate de distance (a) between connections. Acording the formula in AISC Section E6.2 I have read that the distance is equal to effective length divided by the number of spaces...
  4. rubenpezu

    Bolts doubt

    Hello, I have just talking with a costumer about the use of different quality bolts. In Europe case 5.6 Vs 8.8 (according ISO 898-1) and in US case T0 Vs T1 (according ASTM A394) I think with steel S275 and S355 (Europe) or A36 and A572 Grade 50. The question is that he explain me that is not...
  5. rubenpezu

    Design of steel pole ASCE/SEI 48/11

    I hope you could help me. We are thinking in buy PLS-POLE to redesign our steel transmission (octagonal) poles. They are form 90's. But first I want to learn how calculate manually in order to use correctly PLS-POLE. We have bought ASCE /SEI 48-11. And after read it carefully I have some doubts...
  6. rubenpezu

    Modeling an octogonal pole

    Dear All, I am trying to model an octagonal pole for electric distribution. I have made by different ways but I want to know if it is possible make an extrusion with taper. What I want to do is draw the base octagon (inner and outside) and the same in other plane with the top of the pole. And...
  7. rubenpezu

    Pole foundation without concrete

    Hello, I have to prepare the calculation of foundation of a pole but without use concrete. Only embebed in the ground. Usually we calculate this kind of foundation with Sulzberger method. But I am not sure how to calculate without concrete. It is right if in my spreadsheet of Sulzberger change...
  8. rubenpezu

    Steel grillage for steel lattice tower

    Hello, I have never calcualte a steel grillage for a steel lattice tower. I have always calculated stubs angle for concrete pier. Now I am not busy at work and I want to lear how to calculate and design. Can anyone help me? Where can I find information? In ASCE 10-97 there isn't formulas to...
  9. rubenpezu

    Tower with non pivoting vee

    Dear all, I am modeling a TOWER, but I can't find the way to model correctly the tower. As you can see in the attached file there are two kind of towers, one model is with the insulators of left side. This tower is done, I have modeled with a 2-part insulator. I think was right because now we...
  10. rubenpezu

    Hot bending plates

    Dear all, We have to bend a plate with an angle of 15º (more or less) but our costumer only say "not cold bending is allowed". We want to know a standard to know at how many degrees, How much area we have to heat etc. someone can tell me a standard that indicates how you should bend a hot...
  11. rubenpezu

    Wind pressure on octogonal POLE for a transmission line

    Hi, I did a research in internet looking for the wind pressure you have to apply in a transmission line pole. I have found that the formula is qz=0,00256 (psf) * Vw^2. 25,6 psf for 100 mph Is this right? My pole has octogonal shape. Have I apply a coefficient for the shape? Here in Spain we...
  12. rubenpezu

    Number of holes in Double angular

    Hi, When you have a doble angular in X form and you have to calculate the number of holes to put in angle members, you have to consider all posibbilities of holes in the section. I have made this assumption (in the attached file). Could anyone help me is my assumption is right? And like this...
  13. rubenpezu

    Redundant member in lattice towers

    Hi, I have some doubts with the definition of redundant members. The horizontal or the redundant members with less than 15º(or 30º, I'm not sure) sould have define with the load of a worker. Am I right? ASCE 10-97 3.14.8. And the rest of redundant member only according KL/r with L/r<250? Thanks.
  14. rubenpezu

    Loading tests on overhead line structures

    Hello, I have to test a TOWER in the test station (my first time) and I have a doubt. I have to prepare the loads for the test. I try to use the PLS-TOWER to obtain this loads but I'm not sure If it is right. Now I have a maximun puntual loads of the structure in the crossarms wiht my national...
  15. rubenpezu

    Angles welded in TOWER

    Hi, I´m new in the forum. I am new working with software TOWER of powerline. I have to design a small tower, the complete head is welded. I have seen that in the examples of TOWER, in the library of tower, there are a kind of angles SAW (single angle welded) but all of them are really big. Are...

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