CN202688885U - High-stability fastener type full space support - Google Patents
High-stability fastener type full space support Download PDFInfo
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- CN202688885U CN202688885U CN 201220341165 CN201220341165U CN202688885U CN 202688885 U CN202688885 U CN 202688885U CN 201220341165 CN201220341165 CN 201220341165 CN 201220341165 U CN201220341165 U CN 201220341165U CN 202688885 U CN202688885 U CN 202688885U
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Abstract
The utility model discloses a high-stability fastener type full space support, relating to a support structure which can be used for load support, such as the construction of the upper structure of a cast-in-situ beam of a bridge. The full space support is composed of a base, a vertical bar, a horizontal bar, a scissors support bar, a fastener and the like, wherein a rectangular frame structure of the full space support is mainly formed by the vertical bar and the horizontal bar; the scissors support bar is arranged on vertical and horizontal surfaces between the vertical bar and the horizontal bar of the full space support and used for increasing the stability; a plurality of space multi-facade diagonal support bars are added and mainly arranged in a plurality of rectangular frames on the basis of the existing full space support combined by the structure and capable of further increasing the stability and reliability of the building structure of the full space support; and therefore, the improved structure is simple in building, lower in construction cost and strong in practicality, the full space support is more stable and reliable in use and the construction safety of the engineering is also guaranteed.
Description
Technical field
The utility model relates to a kind of structure of setting up of full framing, especially a kind of high stability fastener type full framing.
Background technology
At present, often in bridge Cast-in-situ Beam Superstructure Construction adopt the method for setting up full framing, and full framing whether safe and reliable be prerequisite and the basis that guarantees construction safety.In recent years, bridge cast-in-place full framing collapse accident occurs repeatedly, and it is one of multiple accident of bridge superstructure cast-in-place construction, has caused the massive losses of life and property.Further investigation reveals that the bridge cast-in-place full framing collapses and mainly causes that by reasons such as ground collapse, full framing strength deficiency, full framing unstability and misoperations wherein the full framing unstability has accounted for larger specific gravity.Full space support construction standard and conventional way generally are that the vertical and horizontal plane between vertical rod and horizon bar arranges scissors strut and girt, these struts mostly are single facade and plane, that is to say in the space that is not arranged on vertical and horizontal plane, although for the stable important function that played of full framing, guarantee that further the stability of full framing still has worth improvements.Recently, peace committee of State Council does and has issued " about printing and distributing the notice of the cave-in accident sole rectification schemes such as engineering construction field prevention construction hoist tool, scaffold " (peace committee does letter (2012) No. 25) file, this shows that this similar support of the full framing situation of collapsing is still very serious.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective of prior art and a kind of simple, stability height of setting up is provided, and uses more safe and reliable a kind of high stability fastener type full framing, and it can guarantee the safety of engineering construction.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of high stability fastener type full framing, its top braces bearing load, on the surface-based basis of bottom support, this full framing comprises many vertical rods parallel to each other and Duo Gen horizon bar parallel to each other, every vertical rod is all perpendicular with every horizon bar, the place of intersecting of every vertical rod and every horizon bar is equipped with fastener and connects fixing, also be provided with the scissors strut on the outer facade of described full framing, this scissors strut and vertical rod or the horizon bar place of intersecting also are provided with fastener and connect fixing, described being connected with horizon bar by vertical rod also is provided with many many facades of radical space diagonal member struts in a plurality of rectangular frames that form, and every many facades of radical space diagonal member strut and vertical rod or the horizon bar place of intersecting also are provided with fastener and connect fixing.
Described many many facades of radical space diagonal member struts are crossed over a plurality of unit rectangular frames that are connected with horizon bar and formed by vertical rod, the two ends of every many facades of radical space diagonal member strut tilt to be connected with drift angle, the base angle of the outermost unit rectangular frame of a plurality of unit rectangle respectively, the centre also is connected with vertical rod or the horizon bar of a plurality of unit rectangular frame, and tie point is no less than one.
Described vertical rod top is provided with jacking, and the bottom is provided with bracket.
Described many bottom of upright rods are provided with the bar of sweeping the floor that is connected, and this bar of sweeping the floor comprises laterally sweep the floor bar and the bar of vertically sweeping the floor, and the described bar of laterally sweeping the floor is installed in the bar below of vertically sweeping the floor.
Described scissors strut comprises vertical bracing bar and horizontal cross brace bar, and this vertical bracing bar connects many vertical rods or horizon bar, many horizon bars of horizontal cross brace bar level connection joint or vertical rod.
The tie point of the tie point of described vertical bracing bar and many vertical rods or horizon bar, horizontal cross brace bar and many horizon bars or vertical rod is all more than or equal to 3.
Described vertical rod, horizon bar, space many facades diagonal member strut and the bar of sweeping the floor are the steel pipe.
Described fastener comprises right-angle coupler, to clasp and rotary buckle.
Described load is the cast-in-situ concrete of bridge top, template, construction equipment, constructor and safety stock weight sum.
Compared with prior art, the utility model mainly provides a kind of fastener type full framing of high stability, it is in the vertical rod that consists of existing full framing, on the basis of horizon bar and scissors strut, set up again space many facades diagonal member strut, the rectangular frame structure of vertical rod wherein and horizon bar main composition full framing, be used for improving stability on the vertical and horizontal plane between the vertical rod that the scissors strut is installed in full framing and the horizon bar, and diagonal angle, space many facades hound mainly is arranged in a plurality of rectangular frames, full framing be can further improve and stability and the reliability of structure set up, structure after the improvement is set up simply, cost is lower, practical, full framing uses more stable, reliably, also guaranteed the construction safety of engineering.
Description of drawings
Fig. 1 is perspective view of the present utility model.
Fig. 2 is the schematic diagram that the utility model is applicable to bridge Cast-in-situ Beam Superstructure Construction.
Fig. 3 is that the utility model is without the calculating chart of space many facades diagonal member strut.
Fig. 4 is the calculating chart that the utility model adopts 2 many facades of radical space diagonal member struts.
Fig. 5 is the calculating chart that the utility model adopts 4 many facades of radical space diagonal member struts.
The specific embodiment
The below will elaborate to the utility model embodiment by above-mentioned accompanying drawing again.
Such as Fig. 1 ~ shown in Figure 5,1. basis, 2. bracket, 3. sweep the floor bar, 4. vertical rod, 5. horizon bar, 6. scissors strut, 7. many facades of space diagonal member strut, 8. fastener, 9. load, 10. jacking, 11. cast-in-situ bridge templates.
A kind of high stability fastener type full framing, as shown in Figure 1 and Figure 2, it is on surface-based basic 1, mainly be to be connected to each other to set up by fastener 8 by the various vertical rod 4 of quantity, horizon bar 5, scissors strut 6 and space many facades diagonal member strut 7 to form, the fastener type full framing that present embodiment adopts is a kind of bridge superstructure cast-in-place support of a kind of standard approved product and code requirement of the full framing of making according to relative national standards load 9 when setting up, bearing construction.Vertical rod 4 wherein, horizon bar 5, scissors strut 6 and space many facades diagonal member strut 7 all are to adopt the steel pipe.
Described many vertical rods 4 are parallel to each other and be vertically set on the basis 1, the also setting parallel to each other and be used for level connection joint vertical rod 4 of many horizon bars 5, every vertical rod is all perpendicular with every horizon bar 5, the place of intersecting of every vertical rod 4 and every horizon bar 5 is equipped with fastener 8 and connects fixingly, is connected to each other to fix by the various vertical rod 4 of quantity and horizon bar 5 and forms rectangular-shaped frame construction.
Described many vertical rods 4 tops are mainly used in supporting load 9, this load is the cast-in-situ concrete of bridge top, template, construction equipment, constructor and safety stock weight sum, cast-in-situ bridge template 11 as shown in Figure 2, and be equipped with jacking 10 on every vertical rod 4 tops, in order to support the template of cast-in-situ bridge; Described every vertical rod 4 bottoms are equipped with bracket 2, and this bracket also is to be placed in the lowermost a kind of member of full framing, and it contacts with basis 1, and possess the function of adjusting the full framing height.
Described many vertical rods 4 bottoms also are provided with the bar 3 of sweeping the floor that is connected to a fixed with fastener 8, this bar of sweeping the floor also adopts the steel pipe, it is a kind of horizontal bar structure that forms rectangular frame for connecting upright pole 4 roots, and comprise the bar of vertically sweeping the floor of laterally sweeping the floor bar and vertically arranging along full framing along the full framing horizontally set, and the bar of laterally sweeping the floor is installed in the bar below of vertically sweeping the floor, be used for bearing the power that bar transmits of vertically sweeping the floor, and be passed to again on vertical rod 4 and the basis 1 by the bar of laterally sweeping the floor.
Described scissors strut 6 is for being arranged on the oblique braced structures of the scissors-type on the facade outside the full framing, it comprises many vertical rods 4 of connection or the vertical bracing bar of horizon bar and the horizontal cross brace bar of level connection joint many horizon bars 5 or vertical rod, this vertical bracing bar is the basic element of character of strengthening the full framing longitudinal stability, and the horizontal cross brace bar is the basic element of character of strengthening the full framing lateral stability.
Described space many facades diagonal member strut 7 mainly is a kind of space many facades Cross Braced structure that arranges on scissors strut 6 these common process bases, further sets up on the plane that vertical rod 4 and horizon bar 5 consist of, can increase from a plurality of directions the support of full framing by this space many facades diagonal member strut 7, strengthen three-dimensional stress-bearing capability, and improve the resistance to overturning of full framing.The quantity of space many facades diagonal member strut 7 generally arranges 1 ~ 4 in a unit rectangular frame, also can cross over a plurality of unit rectangular frames that are connected and form with horizon bar 5 by vertical rod 4, the two ends of every many facades of radical space diagonal member strut respectively with the drift angle of the outermost unit rectangular frame of a plurality of unit rectangle, the base angle connection of tilting, the centre also is connected with horizon bar 5 with the vertical rod 4 of a plurality of unit rectangular frame, and tie point is no less than one, the stability of full framing be can increase, and quantity and the length of space many facades diagonal member strut 7 mainly taken during actual the use according to stressing conditions.
Described fastener 8 is the intermediate connectors for connecting upright pole 4, horizon bar 5, scissors strut 6, space many facades diagonal member strut 7 and the bar 3 of sweeping the floor, domestic fastener commonly used 8 is cylinder iron to make, all the other are made with steel material, these fasteners and rod member are the national standard approved product, its caliber, wall thickness, length and intensity can directly buyings on market by the national standard design.And the fastener 8 that full framing adopts mainly comprises right-angle coupler, to clasp and rotary buckle, can satisfy respectively the connection needs between the various struts.
Described fastener type full framing erection method step is as follows:
Step 1, needs are set up basic 1 bearing capacity can not satisfy instructions for use in the bridge full framing scope zone change and fill out or carry out reinforcing soft foundation and process;
Step 2, lay adjustable bracket 2 on the basis 1 of setting-out identification point;
Step 3, along vertical bridge to direction across bridge many vertical basic 1 vertical rods 4 being installed on the bracket 2, and be fixed and be connected with the vertical, horizontal bar 3 of sweeping the floor, then connect the horizon bar 5 of vertical and horizontal;
Step 4, from one end to the other side set up in order according to the layout of bridge superstructure, erect successively vertical rod 4 by the location, and connect the horizon bar 5 of vertical and horizontal, fixed with fastener 8 after proofreading and correct vertical rod 4 verticality, and progressively upwards set up by this requirement;
Step 5, vertical bracing bar arrange together with every 5m along the bridge beam overall, and this vertical bracing bar must not be less than 3 with fastener 8 fastenings and tie point; Per 3～4 meters high settings of horizontal cross brace bar one, the gradient of this horizontal cross brace bar is controlled at about 45 °, and the horizontal cross brace bar must not be less than 3 with fastener 8 fastenings and tie point;
Step 6, in the section of the rectangular-shaped framework that forms that is connected with horizon bar 5 by vertical rod 4,1 ~ 4 many facades of radical space diagonal member strut 7 is set, also can cross over a plurality of unit rectangular frames that are connected and form with horizon bar 5 by vertical rod 4, the two ends of every many facades of radical space diagonal member strut 7 tilt to be connected with drift angle, the base angle of the outermost unit rectangular frame of a plurality of unit rectangle respectively, the centre also is connected with horizon bar 5 with the vertical rod 4 of a plurality of unit rectangular frame, and tie point is no less than one, angle is set is controlled at 45
o~ 60
o, so that the stressed effect of space many facades diagonal member strut 7 is in optimum; Many facades space Cross Braced structure that this space many facades diagonal member strut 7 consists of can adopt single steel pipe to run through from bottom to top method, and length not also can connect with fastener 8 with many steel pipes; Also can adopt the space Cross Braced structure of the many facades of long steel pipe multilayer when full framing is higher; Many facades Cross Braced structure adopts single steel pipe when the space, the point of contact of it and horizon bar 5 or vertical rod 4 must not be less than 3, and it is many that intermediate connection point is wanted as far as possible during to the elongated steel pipe in top at the end, more more being conducive to of tie point disperses stressed and Stability Analysis of Structures, and full framing globality and stability are just better; Space many facades diagonal member strut 7 of a vertical cross-section facade of any direction is no less than 3.
Step 8, check the connection of each member and fastener 8, accurate, safety adds the load precompressed after firmly in accordance with regulations.
The quantity that space many facades diagonal member strut 7 is set in the full framing need be carried out Computer Analysis calculating in advance before installation, this computational process is as follows:
1, computation model
Adopt the Midas software for calculation to set up the full framing spatial finite element model of simplifying, comprise shown in Figure 3 without the spatial model of space many facades Cross Braced structure with many facades Cross Braced structure of having living space, namely as shown in Figure 42 many facades of radical space diagonal member struts and 4 many facades of radical space diagonal member struts shown in Figure 5.Vertical rod 4, horizon bar 5 and space many facades diagonal member strut 7 all adopt the beam element modeling, and x(are vertical in bottom bracket 2 constraint), y(is horizontal), z(vertical to) the direction displacement.
Horizon bar step pitch 1.2m, overall height 6.5 m get maximum and allow that lotus is vertical to carrying 30kN, make the resistance to overturning buckling analysis and consider deadweight and vertical Eigenvalues analysis under the power effect.As shown in table 1:
Table 1, three kinds of model stress contrast tables
| The unit | Without space many facades diagonal member strut value of compressive stress (MPa) | 2 many facades of radical space diagonal member strut value of compressive stress (MPa) | 4 many facades of radical space diagonal member strut value of compressive stress (MPa) |
| Near unit, top (space many facades diagonal member strut and the vertical rod tie point) | 61.3 | max90.5 | max 65.4 |
| The unit, middle part | 61.3 | max65.6 | max 60.6 |
| Near unit, bottom (space many facades diagonal member strut and the vertical rod tie point) | 61.3 | max90.5 | max 65.4 |
As known from Table 1, because space many facades diagonal member strut 7 increases with the constraint of vertical rod 4 junctions, cause integral rigidity to increase, so the section stress value increases to some extent, but allow the lower intensity of load (30kN) all to meet the demands in maximum.
2, Monolithic Stability Analysis
Table 2, table 3 are respectively three rank modal characteristics values, each unstability modal characteristics value contrast table.
Table 2, three rank modal characteristics value contrasts
| Mode | Buckling mode characteristic value during without space many facades diagonal member strut | 2 many facades of radical space Cross Braced buckling of bar modal characteristics values | 4 many facades of radical space Cross Braced buckling of bar modal characteristics values |
| 1 | 1.790405 | 2.232768 | 2.985139 |
| 2 | 2.125802 | 2.421441 | 3.470552 |
| 3 | 2.744557 | 2.885042 | 4.317410 |
Table 3, each unstability modal characteristics value contrast table
| Mode | Buckling mode characteristic value during without space many facades diagonal member strut | 2 characteristic values of buckling mode during without space many facades diagonal member strut | 4 many facades of radical space Cross Braced buckling of bar modal characteristics values |
| The vertical equity unstability | 1.790405 | 2.421441 | Nothing |
| Vertical to crooked (1 rank) unstability | 2.125802 | 2.232768 | 2.985139 |
| Vertical to crooked (2 rank) unstability | 2.744557 | 2.885042 | 3.470552 |
By table 2, table 3 as can be known, the whole unstability of full framing mainly is vertical, horizontal displacement unstability and vertical to bending-buckling, so analyze first three rank mode.Without under the many facades Cross Braced bar state of space, what at first occur is vertical equity displacement unstability as shown in Figure 3, secondly is vertical to bending-buckling; Arrange as shown in Figure 4 under 2 many facades of radical space Cross Braced bar states, because 2 diagonal angles constraints increase, what at first occur is vertical to bending-buckling, secondly is vertical equity displacement unstability; Arrange as shown in Figure 5 under 4 many facades of radical space Cross Braced bar states, length travel unstability situation does not occur, and only has vertical to bending-buckling.
By result of calculation as can be known: in the situation that space many facades diagonal member strut 7 is set, the vertical, horizontal stability of full framing integral body all is improved, and it is better than full framing stability in the situation that the 2 radical space facade of manying diagonal member struts are set that 4 many facades of radical space diagonal member struts especially are set.
3, practical operation
Outer facade at full framing arranges on plane scissors strut 6 and the horizon bar 5 common process bases, set up again space many facades diagonal member strut 7 of many facades, so that full framing can support from multi-direction increase, strengthen three-dimensional stress-bearing capability, improve the resistance to overturning of full framing.
Embodiment described in the utility model only is used for explanation the utility model and is not used in restriction scope of the present utility model.Should be understood that in addition after having read content described in the utility model, those skilled in the art can make various changes or modifications the utility model, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (9)
1. high stability fastener type full framing, its top braces bearing load (9), on the surface-based basis of bottom support (1), this full framing comprises many vertical rods parallel to each other (4) and many horizon bars parallel to each other (5), every vertical rod (4) is all perpendicular with every horizon bar (5), the place of intersecting of every vertical rod (4) and every horizon bar (5) is equipped with fastener (8) and connects fixing, also be provided with scissors strut (6) on the outer facade of described full framing, this scissors strut and vertical rod (4) or horizon bar (5) place of intersecting also are provided with fastener (8) and connect fixing, it is characterized in that described being connected with horizon bar (5) by vertical rod (4) also being provided with many many facades of radical space diagonal member struts (7) in a plurality of rectangular frames that form, every many facades of radical space diagonal member strut and vertical rod (4) or horizon bar (5) place of intersecting also are provided with fastener (8) and connect fixing.
2. a kind of high stability fastener type full framing according to claim 1, it is characterized in that a plurality of unit rectangular frames that are connected and form by vertical rod (4) and horizon bar (5) of described many many facades of radical space diagonal member struts (7) leap, the two ends of every many facades of radical space diagonal member strut (7) tilt to be connected with drift angle, the base angle of the outermost unit rectangular frame of a plurality of unit rectangle respectively, the centre also is connected with vertical rod (4) or the horizon bar (5) of a plurality of unit rectangular frame, and tie point is no less than one.
3. a kind of high stability fastener type full framing according to claim 1 and 2 is characterized in that described vertical rod (4) top is provided with jacking (10), and the bottom is provided with bracket (2).
4. a kind of high stability fastener type full framing according to claim 1, it is characterized in that described many vertical rods (4) bottom is provided with the bar of sweeping the floor (3) that is connected, this bar of sweeping the floor comprises laterally sweep the floor bar and the bar of vertically sweeping the floor, and the described bar of laterally sweeping the floor is installed in the bar below of vertically sweeping the floor.
5. a kind of high stability fastener type full framing according to claim 1, it is characterized in that described scissors strut (6) comprises vertical bracing bar and horizontal cross brace bar, this vertical bracing bar connects many vertical rods (4) or horizon bar, many horizon bars of horizontal cross brace bar level connection joint (5) or vertical rod.
6. a kind of high stability fastener type full framing according to claim 5 is characterized in that the tie point of tie point, horizontal cross brace bar and many horizon bars (5) or vertical rod of described vertical bracing bar and many vertical rods (4) or horizon bar is all more than or equal to 3.
7. a kind of high stability fastener type full framing according to claim 1 is characterized in that described vertical rod (4), horizon bar (5), space many facades diagonal member strut (7) and the bar of sweeping the floor (3) are the steel pipe.
8. a kind of high stability fastener type full framing according to claim 1, it is characterized in that described fastener (8) comprise right-angle coupler, to clasp and rotary buckle.
9. a kind of high stability fastener type full framing according to claim 1 is characterized in that described load (9) is the cast-in-situ concrete of bridge top, template, construction equipment, constructor and safety stock weight sum.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220341165 CN202688885U (en) | 2012-07-16 | 2012-07-16 | High-stability fastener type full space support |
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|---|---|---|---|
| CN 201220341165 CN202688885U (en) | 2012-07-16 | 2012-07-16 | High-stability fastener type full space support |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131569A (en) * | 2014-04-17 | 2014-11-05 | 中国建筑第四工程局有限公司 | Ultra-large ultra-deep kidney-shaped manually-excavated pile supporting structure and construction method |
| CN105804379A (en) * | 2016-06-08 | 2016-07-27 | 中国二十二冶集团有限公司 | Fastener-type full-hall scaffold supporting method |
| CN107119576A (en) * | 2017-06-28 | 2017-09-01 | 中交路桥华南工程有限公司 | Pier construction security protection platform |
| CN108104481A (en) * | 2017-12-19 | 2018-06-01 | 中建四局安装工程有限公司 | A kind of safe building method of high level movable Scaffold |
| CN109958063A (en) * | 2019-04-12 | 2019-07-02 | 北京市政建设集团有限责任公司 | A kind of support frame erection method |
| CN110130477A (en) * | 2019-04-16 | 2019-08-16 | 上海福铁龙住宅工业发展有限公司 | A kind of housing construction method |
-
2012
- 2012-07-16 CN CN 201220341165 patent/CN202688885U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131569A (en) * | 2014-04-17 | 2014-11-05 | 中国建筑第四工程局有限公司 | Ultra-large ultra-deep kidney-shaped manually-excavated pile supporting structure and construction method |
| CN105804379A (en) * | 2016-06-08 | 2016-07-27 | 中国二十二冶集团有限公司 | Fastener-type full-hall scaffold supporting method |
| CN107119576A (en) * | 2017-06-28 | 2017-09-01 | 中交路桥华南工程有限公司 | Pier construction security protection platform |
| CN114197325A (en) * | 2017-06-28 | 2022-03-18 | 中交路桥华南工程有限公司 | Pier shaft construction safety protection platform |
| CN108104481A (en) * | 2017-12-19 | 2018-06-01 | 中建四局安装工程有限公司 | A kind of safe building method of high level movable Scaffold |
| CN109958063A (en) * | 2019-04-12 | 2019-07-02 | 北京市政建设集团有限责任公司 | A kind of support frame erection method |
| CN110130477A (en) * | 2019-04-16 | 2019-08-16 | 上海福铁龙住宅工业发展有限公司 | A kind of housing construction method |
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