CN203008232U - Steel truss strut - Google Patents

Steel truss strut Download PDF

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Publication number
CN203008232U
CN203008232U CN 201220658751 CN201220658751U CN203008232U CN 203008232 U CN203008232 U CN 203008232U CN 201220658751 CN201220658751 CN 201220658751 CN 201220658751 U CN201220658751 U CN 201220658751U CN 203008232 U CN203008232 U CN 203008232U
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CN
China
Prior art keywords
steel truss
leveling
nut
groove
strut
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220658751
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Chinese (zh)
Inventor
武文忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Longyuan Cooling Technology Co Ltd
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Beijing Longyuan Cooling Technology Co Ltd
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Priority to CN 201220658751 priority Critical patent/CN203008232U/en
Application granted granted Critical
Publication of CN203008232U publication Critical patent/CN203008232U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a steel truss strut and in particular relates to a steel truss strut for carrying out leveling operations on steel truss nodes beforehand by adjusting a leveling support. The steel truss strut comprises a strut body and a strut head arranged at the upper end of the strut body, wherein a pouring trough is arranged on the strut head; and the leveling support is arranged in the pouring trough. By utilizing the steel truss strut, the design of the leveling support is adopted, preset adjustment of leveling plates is realized by adjusting leveling nuts, preparation is made for manufacturing a steel truss platform, the structure is simple, the cost of construction is low, the construction difficulty is small, the entire leveling difficulty of the steel truss nodes is reduced, the construction operation is easy, and the construction installation charge is reduced; the entire connectivity of the steel truss platform can be improved due to that the leveling support is adopted, the precision of the steel truss platform is high, and the structure is stable; and the construction process is accelerated, and the work efficiency is improved.

Description

The steel truss pillar
Technical field
The utility model relates to a kind of steel truss pillar, relates in particular to a kind ofly can realize in advance Truss Joint is carried out by adjusting leveling support the steel truss pillar of leveling operation.
Background technology
Mostly present power station direct air-cooling system support platform used is to adopt the Reinforced Concrete Ring Section post and supports with the Reinforced Concrete Ring Section post to be the steel girder platform that steel truss that orthogonal space arranges consists of; For the direct air cooling system of domestic 300MW, 600MW unit, at present, be used for the following dual mode of the most employing of bearing (being the column cap of ferroconcrete prop) structure that each node of ferroconcrete prop and steel truss is connected:
Steel truss support structure one: this column cap structure is that ferroconcrete prop and steel truss are hinged and the form of the spacing steelframe of gate-type is set; The spacing steelframe of gate-type at each lower-chord panel point place, angle of steel truss is mainly to play when the building project location to meet with when setting up defences earthquake and rarely occurred earthquake, guarantees that steel truss does not break away from the concrete column cap, the effect of the large deformation of restriction column cap.This joints and force path are all comparatively complicated, and design of node is difficulty comparatively, and structure steel fabrication and installation be difficulty comparatively.Complete when the steel truss integral installation, realize the leveling work of bearing each point, very difficult, if assist leveling with large-scale lifting appliance, will produce the expense of the construction and installation of great number.
Steel truss support structure two: this column cap structure is the form that reinforced concrete post and steel truss rigidly connect.The steel truss lower edge is strengthened a plurality of shearing resistance H shaped steel of bottom support bracket plate bottom welding of Nodes as shear key, and the shear key upper end plate is connected with stone bolt on being embedded in column cap, and concrete secondary is poured into steel truss lower edge support plate bottom.Transmit horizontal force by shear key.This node susceptor design is calculated very complicated, and the steel work requirement on machining accuracy is strict, and processing and manufacturing difficulty is very large.After the steel truss integral installation, can't realize the leveling work of bearing each point, to the later stage, tube bundle support A type framework and windbreak etc. are installed and are brought very large difficulty.
For above deficiency, the utility model is badly in need of providing a kind of new steel truss pillar.
Summary of the invention
The purpose of this utility model is to provide a kind of steel truss pillar, and this steel truss pillar can realize Truss Joint is carried out by adjusting leveling support the purpose of leveling operation in advance.
The purpose of this utility model is achieved through the following technical solutions: a kind of steel truss pillar, this pillar include cylinder and are located at the column cap of this cylinder upper end, and described column cap is provided with builds groove, is provided with leveling support in this builds groove.
Described leveling support comprises a plurality of leveling connector of building in groove and levelling plates that are arranged on this leveling connector of being arranged on.
Described leveling connector comprises and is arranged on the leveling nut of building the stone bolt in groove and being arranged on this stone bolt top.
Described stone bolt upper end and described levelling plate install, and described leveling nut is arranged on levelling plate bottom.
Described levelling plate is provided with the shearing resistance hole.
The described groove of building is cone tank.
Described leveling nut comprises nut sleeve and is arranged on the supporting plate of nut sleeve bottom, described supporting plate is used for support levelling plate, described nut sleeve is sleeved on described stone bolt and with described levelling plate and installs, and the upper end that passes the levelling plate in this nut sleeve is provided be used to the nut that screws.
The utility model compared with prior art has advantages of following:
1, the utility model adopts the design of leveling support, realizes the pre-adjustment of levelling plate by adjusting the leveling nut; Ready for better making steel girder platform; Its low cost simple in structure, difficulty of construction is little, and Truss Joint Integral levelling difficulty is reduced, and is easy to constructing operation, has reduced the construction and installation expense; Adopt this leveling support can improve the steel girder platform integrated connection, and the platform precision is higher, structure is more stable; Accelerate construction speed, improved operating efficiency.
2, leveling nut of the present utility model adopts the design of nut sleeve, can make the constructor needn't stretch into to build in groove constantly and screw regulating the levelling plate, and the nut that only needs to screw in levelling plate upper end the nut sleeve upper end can be realized; In the process of screwing, the supporting plate of nut sleeve plays to the levelling plate effect that support advances; Make the leveling operation convenient, saved construction speed, improved operating efficiency.
3, the utility model adopts the design build groove, and this builds groove is that the cell wall of cone tank is provided with the chute of building for grouting; The area of described notch is greater than the levelling plate area that covers thereon, in order to be in the milk to building in groove when secondary is built; When carrying out secondary when building, the concrete grouting material is injected along chute build in groove, under Action of Gravity Field, the concrete grouting material automatically will be built groove and be filled, and it be built more even, closely knit; Improved the quality that secondary is built, with fast construction speed, the column cap structure after secondary is built is more firm, has improved construction quality.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation (partial sectional view) of steel truss pillar in the utility model;
Fig. 2 is the structural representation (top view) of leveling support in the utility model;
Fig. 3 is the structural representation (partial sectional view) of leveling nut in the utility model;
Fig. 4 is the step block diagram of steel girder platform manufacture method in the utility model.
The specific embodiment
Referring to Fig. 1, shown in Figure 2, steel truss pillar in the present embodiment, this pillar includes the column cap 2 that steel concrete is built the cylinder 1 that forms and is located at this cylinder upper end, described column cap is provided with builds groove 3 for what secondary was built, is provided with in this builds groove for the leveling support that each node 4 of steel truss is installed.
Leveling support described in the present embodiment comprises a plurality of leveling connector 5 of building in groove and levelling plates 6 that are arranged on this leveling connector of being arranged on; Described levelling plate with build the corresponding setting of groove; Described levelling plate is used for the corresponding installation of node base 7 with each node of steel truss.
The connector of leveling described in the present embodiment comprises by the concrete casting building technology and is embedded in the stone bolt 8 of building in groove and is arranged on the leveling nut 9 on this stone bolt top; Stone bolt described in the present embodiment bottom is arranged in described column cap of building the bottom land end, and this stone bolt upper end and described levelling plate install, and described leveling nut is arranged on levelling plate bottom and support levelling plate; Be provided with four stone bolt in the present embodiment, the plug-in mounting position of each stone bolt is corresponding with described levelling plate corner location respectively, and described stone bolt supports described levelling slab integral by the leveling nut; By screwing the leveling nut, regulate horizontal level and the levelling slab integral height at each angle of levelling plate.
The utility model adopts the design of leveling support, realizes the pre-adjustment of levelling plate by adjusting the leveling nut; Ready for better making steel girder platform; Its low cost simple in structure, difficulty of construction is little, and Truss Joint Integral levelling difficulty is reduced, and is easy to constructing operation, has reduced the construction and installation expense; Adopt this leveling support can improve the steel girder platform integrated connection, and the platform precision is higher, structure is more stable; Accelerate construction speed, improved operating efficiency.
The plate of levelling described in the present embodiment is provided be used to the shearing resistance hole 10 that installs shear key; Be provided with the keyway 11 corresponding with this shearing resistance hole at the described bottom land end of building.Vertically be coated with the shear key 12 for anti-horizontal shear in described shearing resistance hole.Shear key described in the present embodiment is vertically set on each node base of steel truss, also can be according to the practice of construction needs, and it is installed be arranged on the levelling plate.
Building groove described in the present embodiment is cone tank, and its notch is rectangle; On building the cell wall of groove, this is provided with the chute 13 of building for grouting.The area of described notch is greater than the levelling plate area that covers thereon, in order to be in the milk to building in groove when secondary is built.The utility model adopts the design build groove, when carrying out secondary when building, the concrete grouting material is injected along chute build in groove, and under Action of Gravity Field, the concrete grouting material automatically will be built groove and be filled, and it be built more even, closely knit; Improved the quality that secondary is built, with fast construction speed, the column cap structure after secondary is built is more firm, has improved construction quality.
Shown in Figure 3, more convenient for making the constructor screw the leveling nut in the present embodiment, the described leveling nut of the present embodiment adopts the design of nut sleeve, this leveling nut comprises nut sleeve 14 and is arranged on the supporting plate 15 of nut sleeve bottom, described supporting plate is used for support levelling plate, described nut sleeve is sleeved on described stone bolt and with described levelling plate and installs, and the upper end that passes the levelling plate in this nut sleeve is provided be used to the nut 16 that screws; Adopt the design of this kind leveling nut, can make the constructor needn't stretch into to build in groove constantly and screw regulating the levelling plate, the nut that only needs to screw in levelling plate upper end the nut sleeve upper end can be realized; In the process of screwing, the supporting plate of nut sleeve plays to the levelling plate effect that support advances.
The pillar of steel truss described in the present embodiment is used for supporting steel truss, and described steel truss and steel truss pillar have consisted of steel girder platform, the corresponding setting of node base on described steel truss pillar and steel truss four corner nodes; The cross section of steel truss described in the present embodiment is rectangular, and this steel truss comprises four corner nodes and is erected at each internodal tube bundle support A type framework (belong to prior art, do not show in figure); Node bottom on four angles of described steel truss is equipped with the node base, and described node base is connected with described pillar by leveling support, and this node base is vertical hinged setting by vertically disposed shear key and leveling support; The node base is fixed as one by stone bolt and levelling plate; Be provided with in the stone bolt upper end for node base and the fixing clamp nut 17 of levelling plate.
Shown in Figure 4, use in the utility model above-mentioned in any one described steel truss pillar make the method for steel girder platform, this manufacture method comprises the steps:
1, press the designing requirement pre-embedded anchoring bolts on cylinder;
Concreting is buried stone bolt underground until form column cap; Build groove through building moulding on column cap; Until the column cap concrete strength reach design strength 50% after carry out next step;
Install the levelling plate is corresponding with stone bolt.
2, adjusting leveling nut transfers to leveling support and meets designing requirement;
The constructor is adjusted to level with the levelling plate;
The constructor is adjusted to the levelling plate and meets design elevation;
By the above-mentioned steps adjustment, can guarantee that each corner node of steel truss and each steel truss pillar absolute altitude are consistent.
3, with the node installation corresponding to each leveling support respectively at each angle of steel truss.
Until its bulk strength of column cap concrete reach design strength 70% after; By the lifting appliance steel truss of slinging, the node at steel truss each angle is installed on the leveling support corresponding with each node by the shear key correspondence on the node base, the bottom of this shear key penetrates by the shearing resistance hole on the levelling plate and builds in groove, and setting corresponding to the keyway of building the bottom land end;
The node base is fixed as one by stone bolt and levelling plate; Be provided with in the stone bolt upper end for node base and the fixing clamp nut of levelling plate.
4, to building secondary concreting grouting material in groove; Before secondary is built, the groove face that first water will be built groove is rinsed well, adopt again high fluidity slightly expanded concrete grouting material to carry out the column cap secondary in groove and build to building, the grouting material liquid level is built to levelling plate bottom, make the stone bolt of building in groove, leveling nut together with shear key fully closely knit build fixing; Steel girder platform is made complete.

Claims (7)

1. steel truss pillar is characterized in that: this pillar includes cylinder and is located at the column cap of this cylinder upper end, and described column cap is provided with builds groove, is provided with leveling support in this builds groove.
2. steel truss pillar as claimed in claim 1 is characterized in that: described leveling support comprises that a plurality of being arranged on build the leveling connector in groove and be arranged on levelling plates on this leveling connector.
3. steel truss pillar as claimed in claim 2 is characterized in that: described leveling connector comprises and is arranged on the leveling nut of building the stone bolt in groove and being arranged on this stone bolt top.
4. steel truss pillar as claimed in claim 3, it is characterized in that: described stone bolt upper end and described levelling plate install, and described leveling nut is arranged on levelling plate bottom.
5. steel truss pillar as claimed in claim 4 is characterized in that: described levelling plate is provided with the shearing resistance hole.
6. steel truss pillar as claimed in claim 5, it is characterized in that: the described groove of building is cone tank.
7. steel truss pillar as claimed in claim 6, it is characterized in that: described leveling nut comprises nut sleeve and is arranged on the supporting plate of nut sleeve bottom, described supporting plate is used for support levelling plate, described nut sleeve is sleeved on described stone bolt and with described levelling plate and installs, and the upper end that passes the levelling plate in this nut sleeve is provided be used to the nut that screws.
CN 201220658751 2012-12-04 2012-12-04 Steel truss strut Expired - Lifetime CN203008232U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220658751 CN203008232U (en) 2012-12-04 2012-12-04 Steel truss strut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220658751 CN203008232U (en) 2012-12-04 2012-12-04 Steel truss strut

Publications (1)

Publication Number Publication Date
CN203008232U true CN203008232U (en) 2013-06-19

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Application Number Title Priority Date Filing Date
CN 201220658751 Expired - Lifetime CN203008232U (en) 2012-12-04 2012-12-04 Steel truss strut

Country Status (1)

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CN (1) CN203008232U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103031892A (en) * 2012-12-04 2013-04-10 北京龙源冷却技术有限公司 Steel truss brace and manufacturing method for steel truss platform
CN110821024A (en) * 2019-11-22 2020-02-21 韶关市第一建筑工程有限公司 Steel structure roof supporting system and construction method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103031892A (en) * 2012-12-04 2013-04-10 北京龙源冷却技术有限公司 Steel truss brace and manufacturing method for steel truss platform
CN103031892B (en) * 2012-12-04 2015-03-04 北京龙源冷却技术有限公司 Steel truss brace and manufacturing method for steel truss platform
CN110821024A (en) * 2019-11-22 2020-02-21 韶关市第一建筑工程有限公司 Steel structure roof supporting system and construction method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
PP01 Preservation of patent right

Effective date of registration: 20201215

Granted publication date: 20130619

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CX01 Expiry of patent term

Granted publication date: 20130619

CX01 Expiry of patent term