Common problems the steel structure design

Common problems the steel structure design

First, if there is gutter tied can not design a site close to the top of the column, otherwise may cause can not install downspouts. Another the gutter fell into the water tube and Tied column supporting the position must consider, otherwise either met Tied to or run into the column and brace. stone coated steel roofing tileSecond, the layout of the baskets bolt position on the horizontal support must be reasonable, not too far from the main beam, should be considered to facilitate the installation of the main. Otherwise, workers must be in the installation and leaned over to bolt tightening baskets or use a ladder up, either to climb purlin purlin installation after the end of tightening baskets bolts so very insecure. We would also consider knee bracing layout position, do not fight in the layout of the level of support and knee bracing.Third, do not be one-sided to consider the tension side, compression side "factors such as hit bottom margins ranging from eyelet, because the installation is very easy to install anti results detriment purlin brace holes.Fourth, doors and windows, wrap angle board can not be generalized, because you can not guarantee that the plate is located in the peaks or troughs of the pressure plate construction.Do large projects, deepening Plan No. must take into account the production, delivery, installation convenience."Load data provided by Party must understand its real meaning, because the Party often do not understand too professional stuff. We want to achieve empathy, the preliminary work done, like to carry out the follow-up more.7, the position of the high-strength bolts should be reasonable to consider the construction is broken, and torque wrench space, do not install, because the space is too small, broken, and torque wrench can not be in place, resulting in a high-strength bolts Plum head can not wring or high-strength bolts can not be tightened. Have come across some design and not give the position of the sleeve., High-strength bolts connecting plate if possible, try to use the up and down symmetry bolt arrangement. Once in contact 4 above, the following six shop workers take pretend not to accidentally engage in anti-Sorry to at the scene.IX light steel structure maintenance brick wall, we must advance the construction unit and the civil contractor butt good, as it relates to two aspects of civil engineering and steel structures, civil engineering brick wall is likely to engage in is not straight, the color steel pan of water can not be done suddenly big suddenly small, the result is color steel and brick walls the gap suddenly big and small, and difficult to do a good job when the color plate with the brick wall of the Pan-water treatment, construction units have heart preparation.10, anchor bolts are generally civil engineering unit buried steel structure manufacturers plot, they sometimes can anchor bolts position at 90 degrees, and other review, it was too late; dimensions deviation to offset 50 ~ 100mm no surprise. Before construction must be reminded, best tests, based on the text (self-protection).11, wind resistance column to steel beam connections as a spring board to connect, intermediate cross girder installation Deflection large gable beams if connected with bolts and wind-resistant column, cause roofing uneven.12 detail layout and steel beams of the roof purlins should be carefully checked, often found that the number of substandard roof purlins layout diagram detailing and steel beam purlins.The deformation of the gusset plate 13. Gusset plate without stiffeners, and some designers did not design, leading to follow-up welding.14, beams do Department rod connecting plate, there is no proper hole extended in some places because the Department of the rod connecting plate too long, resulting in too little space, tied too long and will not fit into. Some beam structure often this has happened.Fifth, doing a strip window the purlin plate stiffeners toward the direction of the window, the stripe windows went to the ribs, and leaves past. In addition, as far as possible in the the stripe windows purlin installation countersunk head screws.16, door upper the stripe windows and the door on the box is too close, not awning the position.The 17th, sash up and down the adjacent purlin distance between the brace did a good layout, brace ends with sash conflict.Eighteen types of steel plate and high-strength bolts as little as possible, to consider the cost of material testing. Especially off-site construction, and some on-site supervision does not recognize the factory test. You go to coordinate, right?19th, purlin connection plate designed to try not square, reversed assembly workshop.20, within the gutter without insulation layer, the formation of a "cold bridge" indoor produce dripping condensation phenomenon. Should be in the gutter brushing anti-condensation paint or spray polyurethane insulation layer, and also do other thermal insulation. stone coated steel roofing tile, Roof sandwich tablet, it is estimated that within six months (if the span is slightly larger) is necessary to leaking. A check the roof panels outer layer plate Jidao the off marks, because there is no consideration of it in the sun, repeated thermal expansion and contraction. In fact, after construction (sun) to the indoor listen you know how it is.