Garages Made From Steel - Key Points To Consider
I would like to tell about garages made from steel.
Safety coverings (a first coat and the top layer) are applied for protection of open steel elements against atmospheric corrosion or zinc coating, which is better to cover with top and finish coat. Instead of zinc coating with finish coat (a duplex method) for building of garages it is possible to recommend corrosion-proof steel with a protective layer.
At modern methods of protection of surfaces of steel designs there are no technical problems. Application of automatic jet installations for processing of a surface in fraction allows preparing the basis well for first coat drawing that provides long term of its service. In comparison with the economy received because of prolongation of service of a design, an expense for coverings are insignificant. Substantial increase of quality and reduction in price of designs at the expense of decrease in expenses for a wages and the device of woods is reached at drawing of coverings industrially, especially if installation of designs is conducted by the qualified experts restoring damaged sites of coverings.
The condition of coverings should be supervised annually and at necessities to repair the damaged places (for example, scratches). As shows experiment of federal road management, service life of coverings reaches 15-20 and more years. Drawing of new coverings gives the chance to reverse color of a construction every 15-20 years.
Steel designs allow override the big bays easily and economically. Thus columns are usually established on facades. Proceeding from the demanded sizes of places of storage and thoroughfares, accept bays from 17 to 34 m, which exclude necessity of installation of columns on the area of thoroughfares or at parking lots. The free area is expediently used. In a longitudinal direction can be any step of columns and more often it is within 2,5—14 m. Here bays of overlapping and minor beams serve as a criterion.
Other way of placing of columns is such. If beams of overlapping are located across a building they lean directly against columns. Some the big expenses demand system, at which beams of coverings lean against the runs laid on columns, which are constructed with big step. Thus, as a rule, are applied columns of T beam, sometimes with step strengthening, and also columns of box-shaped and round section.
Combining steel of various marks, it is possible to sustain the identical external sizes on all height of columns; at very high buildings of a column in ground floors strengthen, for example, by the device of the box-shaped sections consisting of several beams. Application of corresponding constructive methods allows keeping the identical external sizes on all height of box-shaped and round columns at the expense of increase in the area of metal in section or a thickening of walls.
To runs and beams apply mainly T and sometimes С-shaped beams, and not often frame beams. Restriction of building height reduces a bias of stages and reduces number of turns at entrance and departure that improves system of movement and promotes economy of operational expenses. Constructive connection of concrete plates and beams or application of inclined racks and props allows blocking the big bays without intermediate support.
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