CN202500222U - Multidirectional error adjustable pitch point - Google Patents
Multidirectional error adjustable pitch point Download PDFInfo
- Publication number
- CN202500222U CN202500222U CN2012200242257U CN201220024225U CN202500222U CN 202500222 U CN202500222 U CN 202500222U CN 2012200242257 U CN2012200242257 U CN 2012200242257U CN 201220024225 U CN201220024225 U CN 201220024225U CN 202500222 U CN202500222 U CN 202500222U
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- adjustable member
- vertical
- screw
- horizontal
- adjustable
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Abstract
The utility model discloses a multidirectional error adjustable pitch point comprising devices and fittings such as a support, regulating parts, vertical spacing bolts, etc. The regulating parts are fixed on the support by the vertical spacing bolts to form a pitch point whole. An error adjustment is realized by the regulating parts. The multidirectional error adjustable pitch point can be adjusted multidirectionally with a connected latticed shell rod member in spatial three dimensions of a horizontal direction, a vertical direction and an axis of the rod member so that the length of the rod member and the spatial geometric position of the pitch point can be adjusted. The multidirectional error adjustable pitch point reduces construction errors and structural defects, can effectively improve a stable bearing capacity of a structure and can guarantee a safe use of the structure.
Description
Technical field
The utility model belongs to field of civil engineering, relates to a kind of string that is applicable to and props up device, accessory and install adjustment method thereof that the dome space structures is regulated rod member length and node location.
Background technology
Suspended-dome structure is a kind of novel pre-stressed space structures system that extensively adopts in large span, the large spatial structure; Because it has novel form of structure, graceful Mechanical Builds, various space configuration, good mechanical performance and powerful span ability; Be widely used in public buildings such as sports palace, exhibition hall, cinema, assembly hall, Waiting Lounge in the last few years; Like tariff free zone, Tianjin hall of commercial center roof system, sports palace, Changzhou, 2008 Beijing Olympic Games feather arena, sports palace, Olympic Sports Centre, Jinan etc., become 21 century tool modern sense and one of the green bearing structural system of development potentiality at present.
Form upward from structure, string props up the dome space structures and is made up of upper steel network and bottom cable-strut system.The upper steel network is for being arranged according to certain rule numerous rod members or member and through the space lattice system that node is formed by connecting, being generally individual layer curved face type net shell; The bottom cable-strut system is made up of guy system and the vertical strut of many rings, and each link point that wherein upper end of each central shoring bar need be corresponding with the top single-layer lattice shell is connected, and to the upper wire shell structure effective supporting to be provided, increases integrally-built rigidity.This shows; The node of upper steel network not only need play the effect that connects the numerous net shell of junction rod member and vertical strut; Also want to transmit the internal force that is produced under rod member outer load and the bottom drag-line tension force acting in conjunction, for example: the abutment pressure of axle power, moment of flexure and vertical strut in the net shell rod member etc.In addition, external loads such as pipe-line equipment, furred ceiling and roofing also often act on the upper grid node with the form of concentrated force.Therefore, the node of upper steel network is that string props up the important component part in the dome space structures, is the key that guarantees effective collaborative work of each rod member and structural entity stress performance.
At present; The node that string props up dome upper steel network generally adopts some space lattice joint forms of recommending among current national standard " spatial mesh structure tecnical regulations " the JGJ 7-2010, as: welded hollow spherical joints, bolted spherical node, embedded hub node, cast steel node, pin type node, combination structure node, prestressed cable node and support node.Wherein, the hollow ball of welded hollow spherical joints for being welded by two hemisphere can adopt not ribbing hollow ball and ribbing hollow ball respectively according to stressed size, is mainly used in the rigid joint in the single-layer lattice shell structure; Bolted spherical node then is made up of parts such as steel ball, high-strength bolt, sleeve, trip bolt, conehead or shroudings, is mainly used in the hinged joint in the latticed shell structure.These two kinds of joint forms prop up at string and have obtained in the dome space structures using widely.
Yet; Existing string props up node commonly used in the dome space structures and has following problem: in the installation process of structure; In case member is connected completion with node after, then the position of the installation length of rod member and node is promptly definite fully, can not carries out any error again and regulate.Yet; Because being compiled by many rod members, the node that string props up dome upper steel network forms; And in steel lattice structure actual installation process; The cutting length of every rod member is compared with actual installation length and is had initial imperfection inevitably; The manufacturing defect of all rod members will be accumulated and is pooled to node, and temperature changes the Deformation Member that causes repeatedly between the alignment error of constructor's existence and installation period in addition, makes suspended-dome structure in work progress, have certain accumulation alignment error inevitably.In this case; On-the-spot or through Iterim Change part rod member cutting length with processing and fabricating again; Perhaps utilize manual work or machinery to force part rod member and node in place; Can cause structure to have certain initial assembling internal force and non-expection displacement this moment, is difficult to also guarantee simultaneously that the initial configuration of structure and designing requirement are consistent.Especially after bottom drag-line prestressed stretch-draw is accomplished, the displacement attitude of structure and stress attitude error are further strengthened, will cause very adverse influence in the security performance of follow-up operational phase structure.
The utility model has proposed a kind of multidirectional Error Adjustable node to the problems referred to above that existing string props up the dome node.
The utility model content
Technical problem:The utility model provide a kind of can with the net shell rod member that links to each other in the horizontal direction, vertical direction and center line of the bar direction carry out the multidirectional adjustment of space three-dimensional, and then can regulate the multidirectional Error Adjustable node of node space geometric position.
Technical scheme:The multidirectional Error Adjustable node of the utility model comprises support and rack-mount regulating part, and support comprises base plate, column, cover plate, backing plate and nut; Base plate downside center is provided with the device that is used to connect vertical strut; The base plate upper center is connected with said column, and cover plate and backing plate are through on the column successively, and said nut is connected with the upper end of column through screw thread; A plurality of regulating parts are that arrange at the center with the column, and are installed between base plate and the cover plate through vertical caging bolt;
Regulating part comprises horizontal adjustable member and is installed in the vertical adjustable member on the horizontal adjustable member; Horizontal adjustable member is the cylinder that the side has rectangular through-hole; Vertically adjustable member is installed in through horizontal caging bolt in the rectangular through-hole of horizontal adjustable member, and vertically adjustable member is provided with the installing hole that is used to connect the grid rod member.
In the utility model, the device that is used to connect vertical strut is: hemisphere groove that is provided with at base plate downside center and the ring baffle that is positioned at the said hemisphere groove outside.
In the utility model; The base plate circumferential edge is provided with evenly distributed a plurality of first screws; Said cover plate circumferential edge is provided with a plurality of second screws corresponding with first screw, and said horizontal adjustable member bottom center up and down is provided with the 3rd screw, and the vertical caging bolt of upside passes first screw, the 3rd screw; The vertical caging bolt of downside passes second screw, the 3rd screw, and regulating part is rack-mount.
In the utility model; Horizontal adjustable member rectangular through-hole side walls is provided with corresponding the 4th screw; Said vertical adjustable member is horizontal cylinder, and said installing hole is arranged on vertical adjustable member side, and vertically two bottom center of adjustable member are provided with the 5th screw; Vertically adjustable member is inserted in the rectangular through-hole of horizontal adjustable member, and said horizontal caging bolt passes the 4th screw and the 5th screw, and vertical adjustable member is installed on the horizontal adjustable member.
Beneficial effect:The utility model compared with prior art has the following advantages:
Suspended-dome structure is a kind of error sensitivity structure, and construction error can reduce structure bearing capacity and stability.Rod member blanking sum of errors node installation deviation can make the stability bearing capacity of structure fall and be several times lower than, have a strong impact on the safe handling of structure.
To the rod member blanking sum of errors node installation deviation problem that often occurs in the above-mentioned suspended-dome structure node; The adjustable node of the utility model is after the adjustment of all rod members and node is in place; Can make node take hinged or the mode of rigidly connecting is fixed and retrained the rod member that all link to each other according to design requirement; Thereby make and to carry out rod member length and node orientation between the structure installation period within the specific limits neatly and regulate, guarantee under nothing is forced the advantage of displacement and assembling internal force, to eliminate the alignment error of structure.
The utility model is through being provided with the rod member that is connected of horizontal adjustable member, vertical adjustable member and termination strap bolt; Make each root rod member of linking to each other with node can level to, vertically to multidirectional adjustable with center line of the bar direction implementation space; Thereby can prop up in the dome installation process at string; Flexible rod member length and node location, the adverse effect of rod member error in length and node location deviation in the elimination installation process, the installation accuracy of raising structure;
The Error Adjustable node of the utility model design can be according to actual installation error dynamics adjustment rod member length; Need not to force node and rod member installation in position through manual work or machinery; Eliminated and forced erection stress in place under the installation deviation, guaranteed the excellent mechanical performances of construction period structure;
The utility model adopts high-strength bolt to connect main part, horizontal adjustable member and vertical adjustable member; Can in the construction and installation process, just twist or loosen the node rotational restraint as required at any time; Be convenient to the reciprocal adjustment of many rod member defectives and a plurality of node deviations, have good operability;
The utility model is through level, the vertical multidirectional adjustable mechanism in space; Can simulate string and prop up the node-rod member space geometry relative position of dome curved surface profile different curvature position; Thereby can reduce the node form processing of suspended-dome structure as far as possible, alleviate the workload of prefabrication processing largely.
The utility model has guaranteed actual engineering structures and has designed a model uniformity; Guaranteed the correctness of structure force analysis, in addition, for the very sensitive suspended-dome structure of defective; Reduce construction error and fault of construction and can improve the Stability Analysis of Structures bearing capacity effectively, guarantee the safe handling of structure.
Description of drawings
Fig. 1 is the perspective view of the multidirectional Error Adjustable node of the utility model, among the figure X, Y, Z represent respectively level to, vertically to adjustable with the center line of the bar direction.
Fig. 2 is the perspective view of support 1.
Fig. 3 is the perspective view that support 1 space splits.
Fig. 4 is the plane structure sketch map that base plate 14 is connected with column 15.
Fig. 5 is the perspective view of adjustable member 2 and vertical caging bolt 3.
Fig. 6 is the perspective view in the adjustable member 2 and the space of vertical caging bolt 3 spaces fractionation.
Fig. 7 is the perspective view of grid rod member 4.
Fig. 8 is the perspective view of vertical strut 5.
Fig. 9 is the vertical view of support 1.
Figure 10 is the A-A sectional drawing of Fig. 9.
Figure 11 is the vertical view of horizontal adjustable member 21.
Figure 12 is B-B and the C-C sectional drawing among Figure 11.
Figure 13 is the install adjustment flow process of the multidirectional Error Adjustable node of the utility model.
Have among the figure: support 1, adjustable member 2, vertical caging bolt 3, grid rod member 4, vertical strut 5, nut 11; Backing plate 11, cover plate 13, base plate 14, column 15, the second screws 131; First screw 141, hemisphere groove 142, annular plate washer 143, horizontal adjustable member 21, vertically adjustable member 22; Horizontal caging bolt 23, the three screws 211, the four screws 212, installing hole 221, the five screws 222.
The specific embodiment
The multidirectional Error Adjustable node of the utility model; Comprise support 1 and be installed in the regulating part 2 on the support 1; Support 1 comprises base plate 14, column 15, cover plate 13, backing plate 12 and nut 11, and base plate 14 circumferential edge are provided with evenly distributed a plurality of first screws 141, and cover plate 13 circumferential edge are provided with a plurality of second screws 131 corresponding with first screw 141; Base plate 14 downside centers are provided with the device that is used to connect vertical strut 5; Base plate 14 upper center are connected with column 15, and cover plate 13 is through on the column 15 with backing plate 12 successively, and nut 11 is connected with the upper end of column 15 through screw thread; A plurality of regulating parts 2 are that arrange at the center with column 15, and are installed between base plate 14 and the cover plate 13 through vertical caging bolt 3.
Regulating part 2 comprises horizontal adjustable member 21 and is installed in the vertical adjustable member 22 on the horizontal adjustable member 21; Horizontal adjustable member 21 has the cylinder of rectangular through-hole for the side; The bottom surface center is provided with the 3rd screw 211 above that; The rectangular through-hole side walls is provided with corresponding the 4th screw 212; Vertically adjustable member 22 is provided with the installing hole 221 that is used to connect grid rod member 4, and installing hole 221 is arranged on vertical adjustable member 22 sides, and vertically two bottom center of adjustable member 22 are provided with the 5th screw 222; Vertically adjustable member 22 is inserted in the rectangular through-hole of horizontal adjustable member 21, and horizontal caging bolt 23 passes the 4th screw 212 and the 5th screw 222, and vertical adjustable member 22 is installed on the horizontal adjustable member 21.
The vertical caging bolt 3 of regulating part 2 upsides passes first screw 141, the 3rd screw 211, and the vertical caging bolt 3 of downside passes second screw 131, the 3rd screw 211, and regulating part 2 is installed on the support 1.
Regulating part 2 is used for linking to each other with many grid rod members 4, is the main device of realizing Error Adjustable.When horizontal adjustable member when the vertical caging bolt 3 at two ends is not tightened about in the of 21, horizontal adjustable member 21 can be rotated around the central axis of vertical caging bolt 3, thereby has realized the horizontal direction adjustable angle.Can tighten vertical caging bolt 3 and nut 11 after the horizontal direction angle adjustment puts in place, through horizontal adjustable member 21 and cover plate 13, the frictional force between the base plate 14 stops its horizontal direction to be rotated.In like manner, when the horizontal caging bolt 23 of vertical adjustable member 22 right ends was not tightened, vertically adjustable member 22 can be rotated around the central axis of horizontal caging bolt 23, thereby realizes the vertical direction adjustable angle.Can tighten the horizontal caging bolt 23 of right ends after the vertical direction angle adjustment puts in place, perhaps leave the slit and squeeze into iron plate and rotate to stop its vertical direction at the vertical upper and lower side of adjustable member 22.
Vertically caging bolt 3 is high-strength bolts, is used to connect support 1 and horizontal adjustable member 21.In like manner, the horizontal caging bolt 23 in second portion regulating part 2 is high-strength bolts, is used for horizontal adjustable member 21 of connection and vertical adjustable member 22.After the adjustment of rod member and node is in place, can fix through straight caging bolt 3 is applied bigger pretightning force with horizontal caging bolt 23.
Comprise grid rod member 4 and vertical strut 5 with the link member mutually that the multidirectional Error Adjustable node of the utility model connects.Grid rod member 4 is the screwed rod members in termination in common steel tube end and bolt welding formation; Link to each other with vertical adjustable member 22; Can be in the installation screw 221 of vertical adjustable member 22 precession or screw out a segment distance, thereby realization center line of the bar direction adjustable length.Vertical strut 5 is that to be processed into semicircle to the end of grid rod member spherical and form, and docks with hemisphere groove 142 in the support 1, thereby realizes that vertical strut 5 and the utility model node are hinged.
The production process of the utility model device is:
1. make support 1: make base plate 14 and column 15, one section screw thread of processing is processed a semi-round ball hole and annular plate washer 143 is set in base plate 14 bottoms on column 15 tops; Make the nut 11 in the support 1, backing plate 11, cover plate 13; On base plate 14 and cover plate 13, a plurality of first screws and second screw are set respectively at last.
2. the production technique regulating part 21: make solid cylinder, hollow out in vertical regulating part 22 positions, form rectangular through-hole, cut edge in lateral location; In the face of cylinder the 3rd screw 211 being set in the heart up and down, the 4th screw 212 is set on the rectangular through-hole side walls;
3. make vertical regulating part 22: make and carry out cylinder, be provided with installation center, 221, two faces of cylinder of screw in its side the 5th screw 222 is set.
The install adjustment operation of the utility model:
1. can confirm that according to node size node connects the rod member adjustable extent.
2. according to adjustable extent, confirm the rod member size roughly.
3. confirm node location according to design drawing.
4. according to node location fixed base plate 14.
5. rod member is screwed into vertical regulating part 22, is connected to vertical regulating part 22 on the horizontal regulating part 21 through just twisting horizontal caging bolt again, and horizontal regulating part 21 is connected on the cushion cap 14 through just twisting vertical caging bolt.
6. according to actual geometrical relationship, regulate vertical regulating part 21 and horizontal regulating part 22 and revolving rod, until the design point of adjusting to spatial mesh structure.
7. add upper cover plate 13, backing plate 12 and nut 11.
8. node is hinged if desired, just twists the residue high-strength bolt and gets final product; Node rigidly connects if desired, twists used high-strength bolt eventually and gets final product; Construction finishes.
Claims (4)
1. multidirectional Error Adjustable node; It is characterized in that; This node comprises support (1) and is installed in the regulating part (2) on the said support (1); Said support (1) comprises base plate (14), column (15), cover plate (13), backing plate (12) and nut (11), and said base plate (14) downside center is provided with the device that is used to connect vertical strut (5), and base plate (14) upper center is connected with said column (15); Said cover plate (13) and backing plate (12) are through on the column (15) successively; Said nut (11) is connected with the upper end of column (15) through screw thread, and a plurality of said regulating parts (2) are that arrange at the center with column (15), and are installed between base plate (14) and the cover plate (13) through vertical caging bolt (3);
Said regulating part (2) comprises horizontal adjustable member (21) and is installed in the vertical adjustable member (22) on the said horizontal adjustable member (21); Said horizontal adjustable member (21) has the cylinder of rectangular through-hole for the side; Said vertical adjustable member (22) is installed in the rectangular through-hole of horizontal adjustable member (21) through horizontal caging bolt (23), and vertically adjustable member (22) is provided with the installing hole (221) that is used to connect grid rod member (4).
2. multidirectional Error Adjustable node according to claim 1; It is characterized in that the described device that is used to connect vertical strut (5) is: hemisphere groove (142) that is provided with at base plate (14) downside center and the ring baffle (143) that is positioned at outside the said hemisphere groove (142).
3. multidirectional Error Adjustable node according to claim 1; It is characterized in that; Said base plate (14) circumferential edge is provided with evenly distributed a plurality of first screws (141); Said cover plate (13) circumferential edge is provided with a plurality of second screws (131) corresponding with first screw (141), and said horizontal adjustable member (21) bottom center up and down is provided with the 3rd screw (211), and the vertical caging bolt (3) of upside passes first screw (141), the 3rd screw (211); The vertical caging bolt (3) of downside passes second screw (131), the 3rd screw (211), and regulating part (2) is installed on the support (1).
4. multidirectional Error Adjustable node according to claim 1; It is characterized in that; Said horizontal adjustable member (21) rectangular through-hole side walls is provided with corresponding the 4th screw (212); Said vertical adjustable member (22) is horizontal cylinder, and said installing hole (221) is arranged on vertical adjustable member (22) side, and vertically two bottom center of adjustable member (22) are provided with the 5th screw (222); Vertically adjustable member (22) is inserted in the rectangular through-hole of horizontal adjustable member (21), and said horizontal caging bolt (23) passes the 4th screw (212) and the 5th screw (222), and vertical adjustable member (22) is installed on the horizontal adjustable member (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200242257U CN202500222U (en) | 2012-01-19 | 2012-01-19 | Multidirectional error adjustable pitch point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200242257U CN202500222U (en) | 2012-01-19 | 2012-01-19 | Multidirectional error adjustable pitch point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500222U true CN202500222U (en) | 2012-10-24 |
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ID=47036838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200242257U Withdrawn - After Issue CN202500222U (en) | 2012-01-19 | 2012-01-19 | Multidirectional error adjustable pitch point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535646A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Multidirectional error-adjustable node suitable for suspend-dome space structure |
-
2012
- 2012-01-19 CN CN2012200242257U patent/CN202500222U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535646A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Multidirectional error-adjustable node suitable for suspend-dome space structure |
| CN102535646B (en) * | 2012-01-19 | 2014-02-12 | 东南大学 | Multidirectional error-adjustable node suitable for suspend-dome space structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121024 Effective date of abandoning: 20140212 |
|
| RGAV | Abandon patent right to avoid regrant |