CN202248522U - Steel truss roof structure - Google Patents
Steel truss roof structure Download PDFInfo
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- CN202248522U CN202248522U CN2011204125489U CN201120412548U CN202248522U CN 202248522 U CN202248522 U CN 202248522U CN 2011204125489 U CN2011204125489 U CN 2011204125489U CN 201120412548 U CN201120412548 U CN 201120412548U CN 202248522 U CN202248522 U CN 202248522U
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- steel truss
- steel
- truss
- roof
- concrete
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Abstract
The utility model discloses a steel truss roof structure which is characterized by comprising a steel truss structure which is arranged at the bottom layer; a steel plate is fixedly arranged on the steel truss structure; rebar is fixedly arranged at the upper part of the steel plate; a concrete layer is arranged above the rebar; and a protecting layer is arranged on the concrete layer. Compared with the prior art, the steel truss roof structure is convenient to construct, short in time limit for a project , saves construction materials and reduces the cost.
Description
Technical field
The utility model relates to a kind of building structure, is specifically related to a kind of steel truss roof structure.
Background technology
In the last few years; Tell development along with socioeconomic, the builing industry of China is also fast-developing thereupon, in the roof structure of long span building engineering, high level and super highrise building engineering; Traditional way is on the upper chord of steel concrete roof truss or steel roof truss; Place large roof slab, do leveling layer, vapour barrier, insulation layer, doing leveling layer and waterproofing course.The drawback of this way is: at first, thermal transmittance is too big, and the roof system heat-insulating property is poor, does not meet the requirement of building energy conservation; Secondly; The roof truss of this roof system and roof panel are two kinds of independent structures; Roof panel seat load is added on the roof truss, has wasted structural meterials, has increased the roof system load; Being the about 3.80KN/M2 of roof system deadweight of major bearing structures with the steel roof truss, is that the roof system of major bearing structures is conducted oneself with dignity and is about 4.30 KN/M2 with the steel concrete roof truss; Once more, this roof structure is complicated, and moulding is not good enough, and daylighting is irregular, and the roof system operation is many, and amount of high-altitude operation is excessive, the construction trouble, and insulation layer and quality of waterproof layer are difficult to control, and cost is too high.
That generally uses at present from the above, all exists bigger drawback with steel roof truss and steel concrete roof truss as the roof system of primary structure.
Summary of the invention
The goal of the invention of the utility model provides a kind of construction facility, the duration is short and lower-cost steel truss roof structure.
For reaching the foregoing invention purpose; The technical scheme that the utility model adopts is: a kind of steel truss roof structure; Said roof structure comprises the steel truss structure that is arranged at bottom, is fixed with steel plate on the said steel truss structure, and said steel plate top is fixed with reinforcing bar; Said reinforcing bar top is provided with layer of concrete, and said layer of concrete is provided with topping.
Further technical scheme, said steel truss structure comprise main steel truss and time steel truss.
In the technique scheme, said steel truss roof system is when construction: the lifting of ⑴ steel truss: main steel truss is installed with time steel truss difference hoisting and locating, and again that location and installation is good master, inferior steel truss weld, and tie-rod and purlin are installed then; ⑵ steel plate installing and laying: the center line that on main steel truss and time steel truss, ejects steel truss; The center line of main steel truss constitutes the control line of laying the steel plate permanent position; Center line main, inferior steel truss is controlled the permanent position of peg, and steel plate is layed on the steel truss, spot welding steel plate side; The secure both ends head adopts peg to fix at last again; ⑶ after steel plate laying, the fixing completion of peg, steel plate is carried out the reinforcing bar binding construction, colligation is carried out concreting after accomplishing; ⑷ concreting is carried out the laying of waterproofing course, insulation layer, topping after accomplishing, and finally accomplishes the steel truss roof system.
Among the step ⑴, unitary piece of steel truss repetition measurement physical dimension, strict its camber of control, lateral bending etc.; Suspension centre is selected to want rationally during lifting, and sling will be selected suitably during lifting, makes the discrepancy in elevation at two ends, main steel truss lifting back identical with the design discrepancy in elevation basically; So that installation in position will divide both direction with cable rope after first section steel truss installation in position is fixing, each direction two point symmetry is held; Crane returns hook again, and second section, the 3rd section main steel truss is installed, and uses the same method and holds steel truss with cable rope.Simultaneously in place during the lifting of roofing steel truss safety device such as safety ropes; When lifting, installs by inferior steel truss with two cranes symmetries; To divide each direction two point symmetry of both direction to hold with cable rope after the one Pin steel truss installation in position is fixing; Crane returns hook again, the 2nd Pin steel truss is installed is used the same method and fix steel truss.First element of construction that structure install to form, be after the block construction basis of installing, so should improve its installation quality standard and precision, play the effect of controlling whole roof structure installation accuracy effectively.Roofing time steel truss is in installation process, and roofing time steel truss is connected and will at first locatees with main steel truss, carries out the welding of primary and secondary steel truss again, and tie-rod and purlin are installed at last.The installation requirement of inferior steel truss horizontal support, purlin conscientiously connects and is fastening, supports and installs and should carry out in the beam bilateral symmetry, and want free counterpoint, avoids causing primary and secondary steel truss verticality to exceed standard.The stability in reinforcement when lifting, primary and secondary steel truss are provided with the dilatory rope per two of semipermanent and stride and be no less than 2 points, help stable between the structure installation period and are convenient to adjustment.
Among the step ⑵, eject the center line of steel truss earlier in the bed board district, the center line of main steel truss is a control line of laying the steel plate permanent position; Overlap the lap width of steel truss by the center line control steel plate of main steel truss; Center line main, inferior steel truss will determine the welding position of peg, be difficult to observe the particular location on time steel truss edge of a wing after the invar plate is laid, so the center line and time steel truss flange width of inferior steel truss returned bullet on the center line of main steel truss; Fixedly should the center line and time steel truss flange width of inferior steel truss be returned on the steel plate that is bound on time steel truss face again during peg; Steel plate is connected the pressing of employing force saddle tongs with the steel plate side sheet room, make to be linked to be whole plate between single steel plate first spot welding steel plate side; The secure both ends head adopts peg to fix at last again.
Among the step ⑶; After steel plate laying, peg are accomplished; Just can carry out reinforcing bar binding construction, the every rib paddy of steel plate reinforcing bar, negative muscle, distribution bar as requested, floor bar, hole additional bar colligation are all according to conventional reinforced bar engineering construction; The roof system concrete strength generally is designed to C35, adopts commercial concrete, concrete transfer pump to build.Do not have vertical support though but steel plate can bear the working load steel plate bottom on top,, in time share and vibrate so concrete should not be too concentrated during concreting.Because steel plate does not absorb water, so have many ponding, in time ponding is discharged through the back concrete surface that vibrates, be convenient to the concrete surface compaction treatment.Unsuitable unified allocation of materials to lower units during concreting, and should not fling reinforcing bar, avoid reinforcing bar, steel plate to receive and impact generation displacement, distortion.Carry out building of floorslab concrete along time steel truss direction, every section concrete is built and is not established constuction joint, continuous placing moulding in the process.Concrete virtual resurfacing thickness is larger than thickness of slab, vibrates back and forth with the vertical concreting direction of vibrator, vibrates to finish the back with the darby strickling, with wood float levelling compacting, and answers backguy inspection plate face absolute altitude, strict control planeness.
Among the step ⑷; Concreting finishes; Cast-in-place parapet construction around the roof is carried out in maintenance after a couple of days; The parapet construction finishes, and carries out coil waterproof layer, warming plate and the construction of pea gravel concreten topping after the roof-base cleaning more respectively, and waterproofing course, insulation layer and topping can be constructed according to conventional job practices.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
1. the utility model is through the fixing steel plate of laying on steel truss structure, and steel plate top assembling reinforcement is provided with layer of concrete on the reinforcing bar; Thereby constitute the steel truss roof structure, whole roof structure is constructed more convenient as compared with the past, and the duration is short; And practiced thrift construction material, reduced cost.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is a local enlarged diagram among Fig. 1;
Fig. 3 is the process chart of the utility model embodiment one.
Wherein: 1, steel truss structure; 2, steel plate; 3, reinforcing bar; 4, layer of concrete.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment one: referring to shown in Figure 1; A kind of steel truss roof structure, said roof structure comprise the steel truss structure 1 that is arranged at bottom, and said steel truss structure 1 is made up of master, inferior steel truss; Be fixed with steel plate 2 on the said steel truss structure 1; Said steel plate 2 tops are fixed with reinforcing bar 3, and said reinforcing bar 3 tops are provided with layer of concrete 4, and said layer of concrete is provided with topping.
This steel truss roof system comprises the following steps: the lifting of ⑴ steel truss when construction: main steel truss is installed with time steel truss difference hoisting and locating, and again that location and installation is good master, inferior steel truss weld, and tie-rod and purlin are installed then; ⑵ steel plate installing and laying: the center line that on main steel truss and time steel truss, ejects steel truss; The center line of main steel truss constitutes the control line of laying the steel plate permanent position; Center line main, inferior steel truss is controlled the permanent position of peg, and steel plate is layed on the steel truss, spot welding steel plate side; The secure both ends head adopts peg to fix at last again; ⑶ after steel plate laying, the fixing completion of peg, steel plate is carried out the reinforcing bar binding construction, colligation is carried out concreting after accomplishing; ⑷ concreting is carried out the laying of waterproofing course, insulation layer, topping after accomplishing, and finally accomplishes the steel truss roof system.
20 layers of main buildings; Steel truss steel reinforced concrete combination roof system is adopted in the 4 layers of circular Conference Hall roof structure design in crowd C district, room; Circular Conference Hall design radial is 20.850m, and the Conference Hall structure adopts the roof system of Reinforced Concrete Circular Cylinder+truss pressure ball hinged-support+steel truss structure+steel plate concrete composite roof slab.It is the reinforced concrete post of 600mm, 800mm, 1000mm that the pillar of this system adopts diameter; What the bearing of roof truss adopted is pressure ball pivot aseismatic bearing; The length of a maximum truss structure is 41.70m, and the bearing span is 36.5m, and depth of truss is 2.5m; Truss lower edge and web member all adopt steel pipe to support; Composite roof slab adopts the 0.8mm steel plate, and concrete slab thickness is 150mm.Steel reinforced concrete combination roof system architectural design way: steel truss beam → steel plate → roofing concrete → cement mortar screeding layer → macromolecule coil waterproof layer → insulation layer → C20 pea gravel concreten topping.
Embodiment two: structure is similar with embodiment one.
Steel reinforced concrete combination roof system is adopted in one civic culture activity centre, left side crowd's room multi function hall and feather arena roofing, and axis (A)～(P) distance is 80.8m, 101 of inferior steel trusss; Axis (1)～(4) distance is 22.5m, and main steel truss amounts to 10, and the flooring floor height is 10.9m.Adopt combination floor support plate FE-3W type; Thickness of slab 0.9mm; Concrete slab thickness is 150mm, steel truss combination roof system architectural design way: steel truss → steel plate → roofing concrete → cement mortar screeding layer → macromolecule coil waterproof layer → insulation layer → C20 pea gravel concreten topping.
Embodiment three: structure is similar with embodiment one.
One Industrial Plant adopts steel work, steel truss combination building roof system, and axis (A)～(N) distance is 111.200m, 920 of inferior steel trusss; Axis (1)～(24) distance is 207.200m, and main steel truss amounts to 450, and flooring floor height, one deck are 5.53m, and two or three layers is 7.200m.Main steel truss mainly adopts H800x250x12x14～H1100X450X18X24 welded H section steel, adopts the combination floor support plate, and floor adopts reinforcement bar truss mould plate; The floor support plate model is TDB3-90; Roofing floor support plate model is TDB2-90, and thickness of slab is 120mm, and the floorslab concrete strength grade is C30.
Claims (2)
1. steel truss roof structure; It is characterized in that: said roof structure comprises the steel truss structure (1) that is arranged at bottom; Be fixed with steel plate (2) on the said steel truss structure (1); Said steel plate (2) top is fixed with reinforcing bar (3), and said reinforcing bar (3) top is provided with layer of concrete (4), and said layer of concrete (4) is provided with topping.
2. a kind of steel truss roof structure according to claim 1 is characterized in that: said steel truss structure comprises main steel truss and time steel truss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204125489U CN202248522U (en) | 2011-10-26 | 2011-10-26 | Steel truss roof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204125489U CN202248522U (en) | 2011-10-26 | 2011-10-26 | Steel truss roof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202248522U true CN202248522U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204125489U Expired - Lifetime CN202248522U (en) | 2011-10-26 | 2011-10-26 | Steel truss roof structure |
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| Country | Link |
|---|---|
| CN (1) | CN202248522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999349A (en) * | 2018-08-06 | 2018-12-14 | 中国恩菲工程技术有限公司 | Discharge structure |
-
2011
- 2011-10-26 CN CN2011204125489U patent/CN202248522U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999349A (en) * | 2018-08-06 | 2018-12-14 | 中国恩菲工程技术有限公司 | Discharge structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215008, No. 380 Tong Jing North Road, Suzhou District, Jiangsu, Suzhou Patentee after: ZHONGYIFENG CONSTRUCTION GROUP CO., LTD. Address before: 215131 Xiangcheng District, Jiangsu Province, Yang Cheng Road, No. 88, No. Patentee before: Suzhou Erjian Construction Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |