CN202227482U - Connection structure for roof truss and concrete column - Google Patents
Connection structure for roof truss and concrete column Download PDFInfo
- Publication number
- CN202227482U CN202227482U CN2011203455458U CN201120345545U CN202227482U CN 202227482 U CN202227482 U CN 202227482U CN 2011203455458 U CN2011203455458 U CN 2011203455458U CN 201120345545 U CN201120345545 U CN 201120345545U CN 202227482 U CN202227482 U CN 202227482U
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- roof truss
- concrete column
- bolt
- crab
- montant
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Abstract
The utility model discloses a connection structure for a roof truss and a concrete column. The connection structure comprises the roof truss and the concrete column, wherein the roof truss comprises vertical end rods; an end plate is arranged on the lower end surface of each vertical end rod; buried iron is arranged on a corbel-piece of the concrete column; at least one anchor bolt is arranged on the central line of each vertical end rod; and the end plates are fixedly connected with the buried iron through the anchor bolts. The connection structure has the advantages that the bending moment at the joint of the roof truss and the concrete column is smaller; the performance is approximate to hinging; the technical problem of larger bending moment between the roof truss and the concrete column of a large-span structure can be solved; the structure is simple; the construction is convenient; and the economical efficiency is higher.
Description
Technical field
The utility model relates to a kind of syndeton, refers in particular to the syndeton of a kind of roof truss and concrete column.
Background technology
Existing nuclear power station conventional island steam turbine building roof structure belongs to longspan structure; In a plurality of nuclear power conventional island structures such as mountain range Australia second phase nuclear power, Ningde nuclear power; Agent structure adopts concrete frame structure, and the steam turbine building span reaches 44m, and roofing adopts the steel roof truss bearing system.Like Fig. 1 and shown in Figure 2, steel roof truss end montant adopts H shaped steel cross section, and end montant lower end is welded with end plate, and end plate is connected with the concrete column bracket through four stone bolt.
When install the steel roof truss job site, become two complete article roof trusses at installation on ground earlier, adjacent two article roof trusses are formed the stool form and are lifted.Roof truss is fallen concrete column bracket pre-embedded bolt top; The ditch that slowly falls after aligning is put roof truss gripper shoe (promptly holding the end plate of montant lower end) into pre-embedded bolt, and the roof truss gripper shoe is with after embedded part contacts fully, crane fine motion pine hook; Up to carrying tight nut, loosen suspension hook then fully.Under above-mentioned sequence of construction, smaller by roof truss rod member and bearing internal force that installation causes, but because its span is big, bearing still receives the additional internal force that is caused by roofing support system, purlin, roof panel and roofing live load, wind load etc.
Conventional island factory building agent structure and roof truss are connected structural analysis and design by hinged consideration, but owing to adopted four bolts to fix in the hinged place, steel roof truss bearing place actual forced status is hinged not exclusively.After bolt is carried tightly; The additional internal force that roofing support system, purlin, roof panel and roofing live load, wind load etc. cause can cause the bearing place to produce sizable moment of flexure; Thereby make weld seam and bolt receive big pulling force, consider to misfit by hinged model, therefore can bring potential safety hazard with design.This potential safety hazard is more serious in being connected of wide span steel roof frame and reinforced concrete post.
In existing syndeton
,Steel roof truss can produce big moment of flexure under vertical and horizontal loads, thereby makes weld seam and bolt receive big pulling force.Be head it off, it is fixing that prior art adopts large diameter crab-bolt to connect, but large diameter crab-bolt makes the performance of node be tending towards more rigidly connecting, thereby under vertical and horizontal loading, can produce bigger moment of flexure, so just formed a kind of awkward situation.
Summary of the invention
The purpose of the utility model provides a kind of defective that can overcome prior art, solves the syndeton of roof truss and rigidly connected steel roof truss of concrete column and concrete column.
The utility model is achieved in that
The syndeton of a kind of roof truss and concrete column; It comprises roof truss and concrete column; Said roof truss comprises the end montant, and the lower surface of said end montant is provided with end plate, and the post bracket of said concrete column is provided with and buries iron; The center line of said end montant is provided with at least one crab-bolt, and said end plate and said buries Tie Tong and crosses said crab-bolt and connect fixing.
When the load of said roof truss was excessive, said roof truss can serve as that axle rotates with said crab-bolt, thereby alleviates the heavy burden of said roof truss, reduces the moment of flexure of holding montant to produce.
Preferably, said crab-bolt is located on the center line of strong axle or weak axle of said end montant.
Preferably, the cross section of said end montant is the H type, and said end montant has two recesses, is respectively equipped with at least one crab-bolt in two said recesses.
Preferably; In order to strengthen the soundness of said end montant; Be respectively equipped with at least one pair of stiffening rib in two recesses of said end montant; And this is symmetricly set in the both sides of said crab-bolt to stiffening rib, and is located at the bottom of said end montant, and the lower end of said stiffening rib is mutually neat with the lower end of said end montant.
Preferably, said end plate has been established the crab-bolt fixing hole.
The utility model compared with prior art has following beneficial effect:
(1) under same vertical and horizontal loading; The moment of flexure that the syndeton of the utility model roof truss and concrete column produces in the junction is littler; The performance of syndeton is also more near hinged, solved longspan structure can produce bigger moment of flexure at roof truss and concrete column technical problem.
(2) use the quantity of crab-bolt few, and the pulling force that each crab-bolt is born still less.
(3) simple in structure, easy construction, and have higher economical efficiency.
Description of drawings
Fig. 1 is the structural representation of prior art roof truss and concrete syndeton;
Fig. 2 is the A-A line sectional view of Fig. 1;
Fig. 3 is the structural representation of the utility model roof truss and concrete syndeton;
Fig. 4 is the B-B line sectional view of Fig. 3.
The specific embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing:
Like Fig. 3 and shown in Figure 4, the syndeton of the utility model roof truss and concrete column, it comprises roof truss and concrete column.Said roof truss comprises end montant 1 and lower chord 2; The lower surface of said end montant 1 is provided with end plate 3; The post bracket 4 of said concrete column is provided with and buries iron 5, and the center line of said end montant 1 is provided with at least one crab-bolt 6, and said end plate 3 and the said iron 5 that buries connect fixing through said crab-bolt 6.
When the load of said roof truss was excessive, said roof truss can be that axle rotates with said crab-bolt 6, thereby alleviates the heavy burden of said roof truss, reduced the moment of flexure that said end montant 1 produces.
Wherein, preferred said crab-bolt 6 is located on the center line of strong axle or weak axle of said end montant 1.
Preferably, the cross section of said end montant 1 is the H type, and said end montant 1 has in 7, two said recesses 7 of two recesses and is respectively equipped with at least one crab-bolt 6, make said end montant 1 can with said post bracket 4 on bury iron 5 fixations.Be respectively equipped with a crab-bolt 6 in the said recess 7 of this preferred embodiment.
In order to strengthen the soundness of said end montant 1; Be respectively equipped with at least one pair of stiffening rib 8 in two recesses 7 of said end montant 1; This is symmetricly set in the both sides of said crab-bolt 6 to stiffening rib 8; And said stiffening rib 8 is located at the bottom of said end montant 1, and the lower end of said stiffening rib 8 is mutually neat with the lower end of said end montant 1.
When fixing said roof truss and said concrete column; Earlier with roof truss lift by crane in place after; Make the anchor hole (scheming not shown) of the end plate 3 of roof truss end montant 1 aim at the cast-in fixing bolt 6 on the said post bracket 4, installation personnel is held up steady roof truss, slowly off the hook in the both sides at roof truss two ends respectively; Make crab-bolt 6 insert in the anchor hole of roof truss the crab-bolt of screwing on nut.Align with the center line of instruments such as crowbar, iron hammer adjustment roof truss end montant 1 and the axis on the post bracket 4, the end plate 3 of roof truss is dropped on bury iron 5 places.The end plate 3 that it should be noted that roof truss can only just contact with burying iron 5, and crane can not complete loose hook, up to tightening the crab-bolt nut, after welding weld seam and installing shear key, can loosen suspension hook fully, removes rigging.
More than be merely the specific embodiment of the utility model, do not limit the protection domain of the utility model with this; Do not violate any replacement and the improvement of being done on the basis of the utility model design, all belonging to the protection domain of the utility model.
Claims (5)
1. the syndeton of roof truss and concrete column; It comprises roof truss and concrete column, and said roof truss comprises the end montant, and the lower surface of said end montant is provided with end plate; The post bracket of said concrete column is provided with and buries iron; It is characterized in that the center line of said end montant is provided with at least one crab-bolt, said end plate and said buries Tie Tong and crosses said crab-bolt and connect fixing.
2. the syndeton of roof truss as claimed in claim 1 and concrete column is characterized in that, said crab-bolt is located on the center line of strong axle or weak axle of said end montant.
3. the syndeton of roof truss as claimed in claim 1 and concrete column is characterized in that, the cross section of said end montant is the H type, and said end montant has two recesses, is respectively equipped with at least one crab-bolt in two said recesses.
4. the syndeton of roof truss as claimed in claim 3 and concrete column; It is characterized in that; Be respectively equipped with at least one pair of stiffening rib in two recesses of said end montant; And this is symmetricly set in the both sides of said crab-bolt to stiffening rib, and is located at the bottom of said end montant, and the lower end of said stiffening rib is mutually neat with the lower end of said end montant.
5. the syndeton of roof truss as claimed in claim 1 and concrete column is characterized in that said end plate has been established the crab-bolt fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203455458U CN202227482U (en) | 2011-09-15 | 2011-09-15 | Connection structure for roof truss and concrete column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203455458U CN202227482U (en) | 2011-09-15 | 2011-09-15 | Connection structure for roof truss and concrete column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202227482U true CN202227482U (en) | 2012-05-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203455458U Expired - Fee Related CN202227482U (en) | 2011-09-15 | 2011-09-15 | Connection structure for roof truss and concrete column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202227482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213638A (en) * | 2014-09-16 | 2014-12-17 | 武汉一冶钢结构有限责任公司 | Detachable assembled-type node |
-
2011
- 2011-09-15 CN CN2011203455458U patent/CN202227482U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213638A (en) * | 2014-09-16 | 2014-12-17 | 武汉一冶钢结构有限责任公司 | Detachable assembled-type node |
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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 |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20180915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |