CN102966186A - Node structure of rigid single-layered latticed-shell structure - Google Patents

Node structure of rigid single-layered latticed-shell structure Download PDF

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Publication number
CN102966186A
CN102966186A CN2012105572652A CN201210557265A CN102966186A CN 102966186 A CN102966186 A CN 102966186A CN 2012105572652 A CN2012105572652 A CN 2012105572652A CN 201210557265 A CN201210557265 A CN 201210557265A CN 102966186 A CN102966186 A CN 102966186A
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China
Prior art keywords
bolt
drum
rod member
node structure
hollow rod
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CN2012105572652A
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CN102966186B (en
Inventor
甄曙华
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Shanghai Cenmin New Material Science & Technology Co Ltd
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Shanghai Cenmin New Material Science & Technology Co Ltd
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Abstract

The invention relates to a latticed-shell structure, in particular to a single-layered latticed-shell structure, more particularly, a node structure of a rigid single-layered latticed-shell structure, and belongs to the technical field of roof buildings. The node structure is characterized by comprising six hollow rod pieces (3) welded and fixed with seal plates (2), and the welding angle is adjustable. The node structure further comprises a bolt drum (1) adopting a hollow cylindrical structure, wherein a detachable cover plate (101) is arranged on at least one end surface of the bolt drum (1); six groups of bolt holes are uniformly distributed in the circumferential direction of the bolt drum (1); the seal plates (2) welded with the hollow rod pieces (3) are in bolted connection with the bolt drum (1) through the bolt holes; and the bolt drum (1) is further provided with an axial bolt (4) through which the cover plate (101) is in bolted connection with the main body of the bolt drum (1).

Description

A kind of node structure of rigidity single-layer lattice shell structure
Technical field
The present invention relates to a kind of latticed shell structure, relate in particular to a kind of single-layer lattice shell structure, in particular, is a kind of node structure of rigidity single-layer lattice shell structure, belongs to the roof building technical field.
Background technology
Latticed shell structure is a kind of and the similar Spacial Frame Structures of flat plate framed structure, is take rod member as the basis, forms according to certain rules grid, by the space frame of shell structure layout.It has the character of leverage and housing concurrently.Its power transmission characteristics mainly are pulling force, pressure or the shearing pointwise power transmissions by both direction in the shell.This structure is a kind of quite concerned, with broad prospects for development space structures both at home and abroad.The characteristics such as compare steel work, latticed shell structure has lightweight, and structure is changeable, and aesthetic property is strong are fit to do the roof.Latticed shell structure is divided into individual layer and double-deck two kinds of forms, and wherein the single-layer lattice shell structure is for being rigidly connected, and weight is lighter, economical with materials.
The node structure of existing rigidity single-layer lattice shell structure, the general mode of directly welding between rod member and the rod member that adopts, adopt the mode of this direct welding, because in reality connects, angle between each rod member need to be adjusted according to the true form of latticed shell structure, in advance welding is difficult to guarantee needed connection angle between rod member and the rod member, so can't be in advance on ground it be welded and winches to again the roof, need to wait for when building binds, the welder climbs up latticed shell structure, aloft it is welded, and is very dangerous, and require very high to welder's technical ability, rod member and the situation of rod member to not going up can appear after welding was finished, and accurate not, simultaneously, the depth of buildings such as needs bind and just can carry out the installation of latticed shell structure afterwards, and construction speed is slower.
In addition, such as node structures such as bolt sphere, rod member and bolt sphere are hinged, and rod member can rotate, non-rigid connection, and bearing strength is lower, can not be applicable to large span, high-intensity single-layer lattice shell structure.
Summary of the invention
The technical problem that actual needs of the present invention solves is: adopt the directly node structure of the rigidity single-layer lattice shell structure of the mode of welding of this rod member and rod member, because in reality connects, angle between each rod member need to be adjusted according to the true form of latticed shell structure, in advance welding is difficult to guarantee needed connection angle between rod member and the rod member, so can't be in advance on ground it be welded and winches to again the roof, need to wait for when building binds, the welder climbs up latticed shell structure, aloft it is welded, very dangerous, and require very high to welder's technical ability, rod member and the situation of rod member to not going up can appear after welding was finished, and accurate not, simultaneously, the depth of buildings such as needs bind and just can carry out the installation of latticed shell structure afterwards, and construction speed is slower.
The present invention is by the following technical solutions:
A kind of node structure of rigidity single-layer lattice shell structure comprises the hollow rod member 3 of the six roots of sensation, and described hollow rod member 3 is welded and fixed with shrouding 2, and its soldering angle can be regulated; Also comprise bolt drum 1, described bolt drum 1 is the hollow cylinder body structure, and described bolt drum 1 at least one end face is provided with dismountable cover plate 101, and described bolt drum 1 circumferentially is laid with six groups of bolts hole; The shrouding 2 of finishing with hollow rod member 3 welding is connected with described bolt drum 1 bolt by described bolt hole; Described bolt drum 1 also is provided with axle center bolt 4, and described axle center bolt 4 is connected described cover plate 101 with the main body bolt of described bolt drum 1.
Further, every group of two bolts hole that comprise upper and lower setting of described six groups of bolts hole.
Further, also be provided with backing plate 5 between the bolt in the described bolt hole and the described bolt drum medial surface.
Further, described hollow rod member 3 rectangular body structures.
Further, described bolt drum 1 also comprises hoop ribs 102.
Further, described hoop ribs 102 is positioned at the middle part of described bolt drum 1.
Further, described bolt drum 1, hollow rod member 3 adopts cast steel.
Characteristics of the present invention are: adopted the central module of bolt drum as the node structure of rigidity single-layer lattice shell structure, it circumferentially carries out bolt by bolt and the parts that comprise hollow rod member and is connected, re-use the axle center bolt main body of cover plate and bolt drum is fixed, thereby formed rigidly fixing of node structure.The largest benefit of this node structure is, the place that uses welding procedure only is that shrouding and hollow rod member are welded and fixed, the overall structure that shrouding and hollow rod member are added together is still very little, be convenient to by the welding equipment with positioner it be aimed in advance, the soldering angle of adjusting to setting welds again, thereby form the hollow rod member of various different soldering angles and the connector of shrouding, hereinafter referred " connector ", again by different connectors is carried out label, before carrying out site construction, at first each connector is transported to the job site, according to the connected mode that designs in advance, the assembler only needs on ground, the connector of each label is carried out bolts assemblies with bolt hole on the corresponding bolt drum, form the fritter net shell that independent node structure or several node structure are connected to form, adopt a small amount of vertical bolster, it is in place that the fritter net shell that has assembled on the ground progressively is lifted into design elevation, then connect into integral body with adjacent fritter net shell, until finish the assembling of whole rigidity single-layer lattice shell structure.
Beneficial effect of the present invention is:
1) simple in structure, assembling is simple.
2) need not the welding operation worker of high professional qualification.
3) welder does not need to climb on the building top and carries out welding operation, has greatly improved working security.
4) assembly precision is high, avoids rod member and the rod member situation to not going up.
5) building just can carry out the production assembling of latticed shell structure synchronously when construction, greatly improves efficiency of construction, has shortened construction period, has saved the duration cost.
6) productive rate, quality, precision or efficient are improved, field-installed mode is wanted more convenient and quicker than Site Welding, and prefabricated connector can overcome the error that causes because of workman's difference of technology level, so the final effect of space structures is more accurate, total body construction more meets design standard, and quality is higher.
7) energy consumption, raw material, operation are saved; Make processing, operation, control, use procedure easy, apparent, this operation of welding has been saved in the job site, and assembling is easier than welding, and workman's training cost reduces.
8) environment pollution is governed: the job site need not to get angry, low-carbon environment-friendly.
Description of drawings
Fig. 1 is the schematic diagram in top down perspective of the node structure of rigidity single-layer lattice shell structure of the present invention.
Fig. 2 be among Fig. 1 A-A to cross-sectional schematic.
Wherein, 1, bolt drum, 2, shrouding, 3, hollow rod member, 4, the axle center bolt, 5, backing plate, 101, cover plate, 102, hoop ribs.
The specific embodiment
Referring to Fig. 1-2, a kind of node structure of rigidity single-layer lattice shell structure comprises the hollow rod member 3 of the six roots of sensation, and hollow rod member 3 is welded and fixed with shrouding 2, and its soldering angle can be regulated; Also comprise bolt drum 1, bolt drum 1 is the hollow cylinder body structure, and bolt drum 1 at least one end face is provided with dismountable cover plate 101, and bolt drum 1 circumferentially is laid with six groups of bolts hole; The shrouding 2 of finishing with hollow rod member 3 welding is connected with bolt drum 1 bolt by bolt hole; Bolt drum 1 also is provided with axle center bolt 4, and axle center bolt 4 is connected cover plate 101 with the main body bolt of bolt drum 1.Every group of two bolts hole that comprise upper and lower setting of six groups of bolts hole.Also be provided with backing plate 5 between bolt in the bolt hole and the bolt drum medial surface.Hollow rod member 3 rectangular body structures, stress surface is larger, and is therefore more firm than the hollow rod member of tubular.Bolt drum 1 also comprises hoop ribs 102, and hoop ribs 102 is positioned at the middle part of bolt drum 1.Bolt drum 1, hollow rod member 3 adopts the cast steel manufacturing.
When this node structure is assembled, its step is as follows: first shrouding 2 and hollow rod member are placed on the welding equipment of device to be positioned, by the required rod member angle of the node structure that designs in advance, shrouding 2 and hollow rod member are welded, form the connector of hollow rod member 3 and shrouding 2, and different connectors are numbered; The assembler is fixed on connector on the corresponding bolt hole by the bolt hole on the bolt drum 1 according to numbering again, because the above and below of hollow rod member 3 and shrouding 2 is plane, its angle of assembling is also very easy to be determined, only needs it is just installed, and just can reach needed node structure.
Before carrying out site construction, at first each connector is transported to the job site, according to the connected mode that designs in advance, the assembler only needs on ground, the connector of each label is carried out bolts assemblies with bolt hole on the corresponding bolt drum, form the fritter net shell that independent node structure or several node structure are connected to form, adopt a small amount of vertical bolster, it is in place that the fritter net shell that has assembled on the ground progressively is lifted into design elevation, then connect into integral body with adjacent fritter net shell, until finish the assembling of whole rigidity single-layer lattice shell structure.Under the actual conditions, connector also can be transported to the job site in batches, and ground-mounted and lifting assembling are carried out in the limit, and the making of connector is carried out on the limit, improves efficiency of construction.

Claims (7)

1. the node structure of a rigidity single-layer lattice shell structure is characterized in that:
Comprise the hollow rod member of the six roots of sensation (3), described hollow rod member (3) is welded and fixed with shrouding (2), and its soldering angle can be regulated;
Also comprise bolt drum (1), described bolt drum (1) is the hollow cylinder body structure, and described bolt drum (1) at least one end face is provided with dismountable cover plate (101), and described bolt drum (1) circumferentially is laid with six groups of bolts hole;
Be connected with described bolt drum (1) bolt by described bolt hole with the shrouding (2) that hollow rod member (3) welding is finished;
Described bolt drum (1) also is provided with axle center bolt (4), and described axle center bolt (4) is connected the main body bolt of described cover plate (101) with described bolt drum (1).
2. node structure as claimed in claim 1 is characterized in that: every group of two bolts hole that comprise upper and lower setting of described six groups of bolts hole.
3. node structure as claimed in claim 1 is characterized in that: also be provided with backing plate (5) between the bolt in the described bolt hole and the described bolt drum medial surface.
4. node structure as claimed in claim 1 is characterized in that: the rectangular body structure of described hollow rod member (3).
5. node structure as claimed in claim 1 is characterized in that: described bolt drum (1) also comprises hoop ribs (102).
6. node structure as claimed in claim 5 is characterized in that: described hoop ribs (102) is positioned at the middle part of described bolt drum (1).
7. node structure as claimed in claim 1 is characterized in that: described bolt drum (1), hollow rod member (3) employing cast steel.
CN201210557265.2A 2012-12-19 2012-12-19 A kind of node structure of rigidity single-layer latticed shell Expired - Fee Related CN102966186B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103437427A (en) * 2013-08-28 2013-12-11 天津大学 Aluminum alloy space grid structure slab rib node
CN105821963A (en) * 2016-03-25 2016-08-03 东南大学 Single-layer space lattice structure assembled double-ring node
CN110318461A (en) * 2019-06-24 2019-10-11 太原理工大学 Round steel pipe supports connection bolt cydariform spherical housing node

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109537727A (en) * 2019-01-07 2019-03-29 中北大学 A kind of tooth socket assembled space structure net shell node and construction method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87201832U (en) * 1987-02-05 1987-11-04 合肥工业大学 Hollow bolt ball node
WO1989002007A1 (en) * 1987-09-03 1989-03-09 Den Norske Stats Oljeselskap A.S Method for the construction of concrete shafts for a platform or similar structure and a section for similar use
CN2415238Y (en) * 1999-07-28 2001-01-17 上海宝山石油机械厂 Hub bell-and-spigot joint for triangular lattice steel screen
CN1702246A (en) * 2005-07-12 2005-11-30 徐国彬 Supporting node
CN102011432A (en) * 2010-11-24 2011-04-13 同济大学 Novel polygonal combined steel pipe
CN202577600U (en) * 2011-12-29 2012-12-05 东南大学 Assembled joint of latticed shell steel structure with free space and curved surface
CN202969592U (en) * 2012-12-19 2013-06-05 上海岑闵新材料科技有限公司 Node structure of rigid single-layer latticed shell structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87201832U (en) * 1987-02-05 1987-11-04 合肥工业大学 Hollow bolt ball node
WO1989002007A1 (en) * 1987-09-03 1989-03-09 Den Norske Stats Oljeselskap A.S Method for the construction of concrete shafts for a platform or similar structure and a section for similar use
CN2415238Y (en) * 1999-07-28 2001-01-17 上海宝山石油机械厂 Hub bell-and-spigot joint for triangular lattice steel screen
CN1702246A (en) * 2005-07-12 2005-11-30 徐国彬 Supporting node
CN102011432A (en) * 2010-11-24 2011-04-13 同济大学 Novel polygonal combined steel pipe
CN202577600U (en) * 2011-12-29 2012-12-05 东南大学 Assembled joint of latticed shell steel structure with free space and curved surface
CN202969592U (en) * 2012-12-19 2013-06-05 上海岑闵新材料科技有限公司 Node structure of rigid single-layer latticed shell structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103437427A (en) * 2013-08-28 2013-12-11 天津大学 Aluminum alloy space grid structure slab rib node
CN105821963A (en) * 2016-03-25 2016-08-03 东南大学 Single-layer space lattice structure assembled double-ring node
CN110318461A (en) * 2019-06-24 2019-10-11 太原理工大学 Round steel pipe supports connection bolt cydariform spherical housing node

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