A kind of roof system supports and i iron purlin is connected constructs and assembled connecting method
Technical field
The present invention relates to steel structural roof support arrangement technical field, be specifically related to a kind of roof system and support and be connected construct and assembled connecting method with i iron purlin.
Background technology
Current, in steel house cover supporting structure layout field, roof system support system and roof system i iron purlin are generally arranged respectively, and the gravity load that roof panel transmits born by i iron purlin, wind load and roof ventilator load.Roof system supports the Space-Work that can ensure roof structure, improves its integral rigidity, bears and transmit horizontal force, avoid roof truss depression bar lateral bucking, ensures stable and convenience during structure installment.But arrange roof system support system in some cases respectively and i iron purlin obviously can increase roof system portion of material amount, technical-economic index is not good, is badly in need of a kind of improvement project.
Summary of the invention
In order to improve the problem that in roof structure, roof system support system and roof system i iron purlin are generally arranged respectively, the invention provides a kind of roof system to support and be connected construct and assembled connecting method with i iron purlin, this anatomical connectivity make can make roof system support the service efficiency arranging, improve rod member with i iron purlin combined type, facilitate roof structure to arrange simultaneously, roof system fid doses is made to decline obviously, roof system portion of techniques economic indicator significantly improves, and makes engineering design more rationally also
perfect.
In order to realize foregoing invention object, the present invention adopts following technical scheme:
A kind of roof system supports and i iron purlin is connected constructs, there is some steel roof truss structures and some roof system braced structuress connect and compose netted connecting structure, described steel roof truss structure is winded up by steel roof truss and 1 to be connected with purlin 2 intersecting vertical, the 1 node corner be connected and purlin 2 and steel roof truss wind up, tilts to be connected with roof system support bar 4 by shaped steel part 5, junction plate 6; Described roof system braced structures is connected with purlin 2 intersecting vertical by tie-beam 3, and the node corner that purlin 2 is connected with tie-beam 3, tilt to be connected with roof system support bar 4 by junction plate 6;
Wherein, the shaped steel part 5 of steel roof truss structure is fixed on steel roof truss and winds up on 1, and shaped steel part 5 and steel roof truss wind up 1, and to connect and compose its cross section be rectangular cavities structure;
Wherein, the junction plate 6 of roof system braced structures is fixed on the bottom wing of tie-beam 3.
A kind of roof system supports to be connected with i iron purlin and constructs, and described steel roof truss winds up and 1 to be connected and composed by an angle steel limit of two angle steel, and wherein another angle steel limit in one plane, and its cross section structure is " fourth " font.
A kind of roof system supports and i iron purlin is connected constructs, and described its cross section structure of shaped steel part 5 is " fourth " font.
A kind of roof system supports and i iron purlin is connected constructs, and described purlin 2 is i iron.
Roof system supports and to be connected the assembled connecting method constructed with i iron purlin, and its step is as follows:
1), be by the plan-position of roof system support bar 4, move a segment distance downwards along steel roof truss 1 plane position of winding up, shift length is 8 ~ 10cm, and being connected to by junction plate 6 its cross section of 1 formation of winding up with steel roof truss is on the shaped steel part 5 of rectangular cavities structure;
2), tie-beam 3 is set between purlin 2, this tie-beam both can bear the load of roofing transverse ventilator, the Out-of-plane Effective Length of purlin 2 can be reduced again, make purlin 2 as horizontal depression bar, avoid steel roof truss to wind up 1 as longitudinal depression bar lateral bucking, purlin 2 and tie-beam 3 combine simultaneously, also double as the tie-rod into roof system braced structures, by roof support district lattice, be converted to segmentation and support;
3), the roof system support bar 4 that moves down a segment distance plan-position is connected with tie-beam 3 bottom flange, adopts angle steel to be connected with the mode of the junction plate 6 of node.
Owing to adopting technical scheme as above, the present invention has following superiority:
1, make purlin double as upper chord of roof truss lateral bucking avoided by depression bar, this purlin and tie-beam also can double as the tie-rod into roof system supports simultaneously, and roof support district lattice are divided into economy and the good size of applicability, convenient setting, simple structure.
2, when this anatomical connectivity manufactures, the shaped steel part connecting purlin can weld in advance on steel roof truss winds up angle steel, processes simple and easy, decreases manufacture processing cost.
Accompanying drawing explanation
Fig. 1 is the layout schematic diagram of roof system braced structures of the present invention and steel roof truss structure;
Fig. 2 is that steel roof truss winds up the structural representation be connected with purlin;
Fig. 3 is the structural representation that tie-beam is connected with purlin;
Fig. 4 is that steel roof truss winds up the syndeton generalized section supported with roof system;
Fig. 5 is the syndeton generalized section of purlin and tie-beam;
In figure: GWJ21-1, GWJ21-1a are steel roof truss structure; SC-1, SC-1a are roof system braced structures;
1, steel roof truss winds up, and 2, purlin, 3, tie-beam, 4, roof system support bar, 5, shaped steel part, 6, junction plate;
Detailed description of the invention
Composition graphs 1, Fig. 2, Fig. 3, shown in Fig. 4, Fig. 5, a kind of roof system supports and i iron purlin is connected constructs, there is some steel roof truss structures and some roof system braced structuress connect and compose netted connecting structure, described steel roof truss structure is winded up by steel roof truss and 1 to be connected with purlin 2 intersecting vertical, the 1 node corner be connected and purlin 2 and steel roof truss wind up, tilts to be connected with roof system support bar 4 by shaped steel part 5, junction plate 6; Described roof system braced structures is connected with purlin 2 intersecting vertical by tie-beam 3, and the node corner that purlin 2 is connected with tie-beam 3, tilt to be connected with roof system support bar 4 by junction plate 6;
Wherein, the shaped steel part 5 of steel roof truss structure is fixed on steel roof truss and winds up on 1, and shaped steel part 5 and steel roof truss wind up 1, and to connect and compose its cross section be rectangular cavities structure;
Wherein, the junction plate 6 of roof system braced structures is fixed on the bottom wing of tie-beam 3.
Described steel roof truss winds up and 1 to be connected and composed by an angle steel limit of two angle steel, and wherein another angle steel limit in one plane, and its cross section structure is " fourth " font.Described its cross section structure of shaped steel part 5 is " fourth " font.Described purlin 2 is i iron.
Roof system supports and to be connected the assembled connecting method constructed with i iron purlin, and its step is as follows:
1), be by the plan-position of roof system support bar 4, move a segment distance downwards along steel roof truss 1 plane position of winding up, shift length is 8 ~ 10cm, and being connected to by junction plate 6 its cross section of 1 formation of winding up with steel roof truss is on the shaped steel part 5 of rectangular cavities structure;
2), tie-beam 3 is set between purlin 2, this tie-beam both can bear the load of roofing transverse ventilator, the Out-of-plane Effective Length of purlin 2 can be reduced again, make purlin 2 as horizontal depression bar, avoid steel roof truss to wind up 1 as longitudinal depression bar lateral bucking, purlin 2 and tie-beam 3 combine simultaneously, also double as the tie-rod into roof system braced structures, by roof support district lattice, be converted to segmentation and support;
3), the roof system support bar 4 that moves down a segment distance plan-position is connected with tie-beam 3 bottom flange, adopts angle steel to be connected with the mode of the junction plate 6 of node.
Described roof system supports the anatomical connectivity make with i iron purlin, roof system is supported arrange plan-position and move down a segment distance from the roof truss common position that arranges of plane of winding up, combine the roofing transverse ventilator usually arranged simultaneously, between purlin, tie-beam is set, this tie-beam both can bear the load of roofing transverse ventilator, the Out-of-plane Effective Length of purlin can be reduced again, make purlin avoid roof truss to wind up depression bar lateral bucking as depression bar, this purlin and tie-beam also can double as the tie-rod into roof system supports simultaneously.Roof support district lattice are divided into economy and the good size of applicability, convenient setting.
For better implementing the invention, roof system support arranges plan-position and moves down a segment distance 8 ~ 10cm.Wherein, the connected mode that the connection that roof system supporting rod and roof truss wind up angle steel adopts shaped steel part excessive, easy construction, power transmission is reliable.
For better implementing the invention, roof system supporting rod is connected with tie-beam bottom flange the connected mode adopting angle steel and gusset plate, easy construction, and power transmission is direct.