1．4．4：Steel doses of board carry on one’s shoulder or back both ends of flat-rolled steel must be supported on steel fine grain or other supporting shelves , every end joins the length and is no less than 25mm.
1．1．5：Two steel doses of board interval lOmm usually, is it require according to drawing and on-the-spot actual conditions make proper to change to need when the installation, guarantee 1.4.4 prerequisites, the interval of minimum installation should meet the following demand : The interval between one dose of boards of steel is 3mm, steel a dose of boards and intervals of adjoint structure are 10mm.
1．5　The steel case board is installed
Please read the drawing and packing list carefully first before installing , then dismantle the packaging with the packing list according to the picture, if does not read pictures and packing list in advance , open packing wantonly , cause confusion or cut wantonly at the scene, responsibility its in the supplier.
Steel doses of board is it install to go on by dull and stereotyped component according to steel construction, can’t horizontal to move or break away from and support the shelf after installing, is it is it install with is it install two method to insert by special-purpose installationing to weld to have mainly, steel one dose of boards does not take to dismantle and move after being installed, is it is it weld method regular steel one dose of boards to use to propose.
1．5．1：Weld and install
Weld at supporting roof beam by doses of board steel, in order to form firm permanence join.
Weld the demand:
①Must remove and support girder steel and steel a dose of board zinc layer,paint , iron rust , greasy dirt and water on the surface ,etc. clean before welding .
②Adopt and weld by stage, the length of welding seam is not smaller than 25mm . Weld horn height smaller than 5mm , weld on steel bearing the weight of flat-rolled steel one side by doses of board , welding seam it is following for quantity to pay respects to the install the quantity of inserting.
③After welding , get rid of and weld dregs and splash , apply two lines of rich zinc paint by hand.
1．5．2：Installation inserting and installing
1．5．2．1：Is it fasten at supporting fine grain to insert steel with installation by doses of board, each steel doses of board (about 1 count) in principle no less than 4 install and insert, install it at four angles of one dose of boards in steel, see Fig. 2.
But if steel doses of board relatively long, and board is it support situation of roof beam to have, is it is it can dispose according to the following quantity to insert to install.
size 　　　　　　　　　 Number
500～1500mm 　　　　　　　　 4
1500～3000mm 　　　　　　　　6
3000～4000mm　　　　　　　　 8
4000～5000mm 　　　　　　　　10
5000～6000mm 　　　　　　　　12
1．5．2．2：Is it insert every part to install (it includes to be as follows, on insert, not make not inserting, bolt , nut , spring washer) erection site not concrete last 1 figures.
1．5．2．3：Install the installation step inserted
Is it insert for example to install with Ⅲ type, this kind is it is it can fasten by latitude card all steel one dose of boards of type in supporting the roof beam safely and reliably to insert to install, only using screwdrivers, on platform, a person can finish independently , it is swift to operate, safe.
①First to insert installation and assemble if Fig. A shows in figures 1.
②It put it insert it wear since steel doses of board flat-rolled steel ,on insert not wearing in steel doses of board flat-rolled steel still.
③Use screwdrivers , will put and insert laying aside under supporting the roof beam flange.
④Insert on mentioning , use nut it makes a reservation to be to insert several type trough , make protruding shoulder joint that insert (to series 3 steel one dose of boards in flat-rolled steel office, only inlay a flat-rolled steel on the protruding shoulder. )
⑤Tighten bolt until is it fasten with screwdriver steel one dose of boards in supporting the fine grain reliably to insert from head to foot, whether tighten moment. 17-20N·M. If use " T " type screwdriver to tighten the clip, the result is better, as Fig. B and Fig. C in figures 1 shows.
1．5．3：Steel once doses of board is it at roof beam , should fasten their at once to lay aside (weld or install and insert), in order to avoid steel one dose of boards displacement, cause the incident.
Note: Where kind of installation methods are used, choose the decision according to the need live by the customer, can be offered to insert by the supplier to install.
1．6 After steel one dose of boards installed, the user should pay attention to maintaining and safeguarding, if find installation is inserted and become flexible, should fasten in time .
2．Mark time and install stiffly
2．1 Guarantee steel ladder oblique roof beam dimensional tolerance,installation,
etc. accord with the design specification demand .
2．2 It mark time by board last height official from and distance not horizontal must make a reservation according to designing requirement accurately.
2．3 Whether mark time board fasten method have the following two.
2．3．1：The bolt, the nut is fastenned, see Fig. 3.
2．3．2：Weld and fasten.
Weld the demand :
①Must remove the oblique fine grain of clean steel ladder and mark time on board zinc storey , paint , iron rust , greasy dirt and water on the surface etc. before welding.
②Install and mark time board T1. At the T3 , mark time board and steel relatively heavy interval under ladder , is it pack with the steel sheet to want, weld symmetrically in both ends sequentially. The welding seam winds the continuous welding seam of flat-rolled steel by the bag , it is not smaller than 5ram to weld the height of angle , see Fig. 4.
⑧After welding , get rid of and weld dregs and splash , apply two lines of rich zinc paint by hand.
3．It explains to add:
①Steel doses of board make, packaging carry out according to YB/T4001-1998,sector
standard of the People’s Republic of China , (steel doses of cupboard board ).
②User receive prove , drawing , packing list ,etc. after the relevant materials , must read , is it get a thorough understanding above-mentioned materials after the content to confirm conscientiously originally, could devan to install , if have any doubt to the content of the materials , must contact supplier in time , in order to get essential help.
③Users must install according to the drawing that originally prove and relevant strictly . Otherwise, to the consequences caused, the supplier is not responsible without exception.