Stadium roof - Aluminum bearing grid specification requirements: 157-259-55558 as manager 1, using aluminum and aluminum roof supporting fixed support model for the L50-type with heat pad holder. Fixing screws using ST5.5 × 30 self-tapping screw fixation. 2, note that T code in the installation process to protect high-ribbed floor; 3, the power cord must be connected to the 220V leakage protection; 4, the limb should be prepared security measures before construction; 5, anchor installation straightness deviation of not more than 2mm. 6, the horizontal and vertical angle mounts deviation of not more than one degree. 7, the holder shall not exceed the height of the deviation span 5 / 1000L. 2. Specific installation method 8, panel mounts are roofing panel supports, fixed on a few font 30 * 70 * 60 * 2 lining purlins, it is passed to the roof load force component purlins, its installation quality a direct impact on the performance of the roof of the wind, the panel mounts installation error also affects the aluminum roof and roof longitudinal free expansion appearance, so the panel mounts installation is the key process of this project. Holder and panel installation form as shown on the right: 9, when the construction of critical control panel mounts bearing horizontal position deviation, tilt angle, and the angle of the plane. If the bearing deviation of more than 5 mm horizontal position (ie, the holder is not in a straight line vertical with the other seat), will inevitably affect the board in vertical free expansion, thermal expansion when the board may be too large role in the resistance of the bearing deviation Under the bulge, or plate rib-term damage caused by leaks in the frictional force. When the bearing in the horizontal plane is a common problem generated torsion angle of the stand is easy to produce, its causes are mainly playing the fixing screws, bearing no compression or ruler gap is too large, a rotating seat in the torsional force, while construction workers also irresponsible, not added after the correct result, the deviation also cause friction plate of ribs causing leaks. Furthermore, when the stand is found elevation error, will still be lining purlins be adjusted to achieve the installation requirements to ensure that seat. 10, with a visual way to check whether each column panel mounts in a straight line, if there is a large variation in panel mounts, the installation must be corrected before the roof until it meets the requirements of the installation plate. Panel mounts as larger deviation, roof installation undercut, it will affect the roof of the free expansion, severe rib plate will wear out at a temperature repeated the role so that the roof leaks.