CN109797754A - Reduce the support construction of deep basal pit lattice column slenderness ratio - Google Patents
Reduce the support construction of deep basal pit lattice column slenderness ratio Download PDFInfo
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- CN109797754A CN109797754A CN201910180068.5A CN201910180068A CN109797754A CN 109797754 A CN109797754 A CN 109797754A CN 201910180068 A CN201910180068 A CN 201910180068A CN 109797754 A CN109797754 A CN 109797754A
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Abstract
The present invention relates to the technical fields of deep basal pit lattice column support construction, disclose the support construction for reducing deep basal pit lattice column slenderness ratio, including being in longitudinally arranged lattice column, multiple supporting beams in lateral arrangement and multiple hounds, one end of supporting beam is in fixed and arranged, the fixed lattice column of the other end of supporting beam, lattice column includes multiple stress surfaces, multiple stress surfaces are in enclosing arrangement, stress surface has sidewise restraint area, one end of hound and supporting beam are in fixed and arranged, the fixed lateral confining region of the other end of hound.Since one end of hound and supporting beam are in fixed and arranged, the fixed lateral confining region of the other end of hound, can reduce computational length of the lattice column in the plane, the final slenderness ratio for reducing lattice column, so that it is met code requirement, guarantees stabilization of the lattice column in main plane of constraint；Also, the structure of the support construction is simple, construction is convenient, and when effectively avoiding reducing lattice column slenderness ratio, cost is excessively high.
Description
Technical field
The invention patent relates to the technical fields of deep basal pit lattice column support construction, in particular to reduction deep basal pit
The support construction of lattice column slenderness ratio.
Background technique
At present in deep foundation pit support, frequently with 4 limb equal leg angles welding lattice column as column, to be carried out to deep basal pit
Supporting.
With the continuous promotion of social development and engineering technology, foundation depth is gradually increased, and adjacent concrete supports structure
Spacing between part also incrementally increases, this also means that the computational length of column increases, can so bring the slenderness ratio of column
The problem of transfiniting.
For the detailing requiments of column in " building foundation pit supporting technical regulation (JGJ 120-2012) " are as follows: column slenderness ratio
It is not preferably greater than 25；The common method for reducing component slenderness ratio has: increasing member section or reduces the computational length of component, uses
Increase the mode of member section and the horizontal inner support quantity of increase to reduce the way of computational length, foundation pit work can be greatly increased
The cost of journey.
Summary of the invention
The purpose of the present invention is to provide the support constructions for reducing deep basal pit lattice column slenderness ratio, it is intended to solve the prior art
In, reduce lattice column slenderness ratio complexity and the high problem of cost.
The invention is realized in this way reducing the support construction of deep basal pit lattice column slenderness ratio, including in longitudinally arranged
Lattice column, multiple supporting beams in lateral arrangement and multiple hounds, one end of the supporting beam are in fixed and arranged, the branch
The fixed lattice column of the other end of beam is supportted, the lattice column includes stress surface, and multiple stress surfaces are described in enclosing arrangement
Stress surface has a sidewise restraint area, and one end of the hound and the supporting beam are in fixed and arranged, the hound it is another
The fixed sidewise restraint area in end.
Further, the hound includes the body of rod and two connection structures, one end of the body of rod and described lateral
Confining region is by connection structure described in one in relatively fixed arrangement；The other end of the body of rod passes through another with the supporting beam
The connection structure is in relatively fixed arrangement；The inclined arrangement of the body of rod.
Further, the both ends of the body of rod offer inwardly respectively installs slot；The connection structure include fixed plate with
And connecting plate, it one end insertion of the fixed plate and is fixed on and described installs slot, the other end of the fixed plate and the connection
Plate is in fixed and arranged, and the sidewise restraint area or supporting beam are fixed in the connecting plate fitting.
Further, the fixed plate and the middle part of the connecting plate are fixed；And the fixed plate and connecting plate are perpendicular
Arrangement.
Further, the both ends for installing slot extend through the body of rod, and forming two is in port positioned opposite, institute
The two sides for stating fixed plate extend respectively to outside two ports；There are two be in side wall positioned opposite, the body of rod for the port tool
Equipped with securing plate, side wall described in the fixed one in one end of the securing plate, the other end of the securing plate is along away from the port
Direction is disposed to extend, when installing slot described in fixed plate is fixed, the securing plate note attached fixation securing plate.
Further, the sidewise restraint area has multiple recessed grooves towards sunken inside, described recessed along direction from top to bottom
Slot is fallen into being longitudinally arranged, the recessed groove penetrates through the top in the sidewise restraint area；The connecting plate has towards described lateral
The joint face of confining region, the joint face have multiple welding items, and the welding item is in protrusion arrangement along the welding surface is deviated from,
When the fixed sidewise restraint area of the connecting plate, the welding item is embedded in the recessed groove, and the fixed institute of the welding item
State recessed groove.
Further, the connection structure includes triangular strip, and there are two sides for the triangular strip tool, and two sides are in
It is arranged vertically, two sides are bonded the fixed fixed plate and the connecting plate respectively；The fixed plate and the connection
Plate connects to form two junctions, and two junctions are respectively fixed with the triangular strip.
Further, the rectangular arrangement of the fixed plate, the fixed plate have four corners, and corner described in one is embedding
Enter in the body of rod；The body of rod has the central axis in center, and corner described in one is in the central axis.
Further, the stress surface of the lattice column, which is equipped with, reinforces batten plate, described in reinforcements batten plate tiling fitting is fixed
The stress surface of lattice column, the reinforcement batten plate form the sidewise restraint area.
Further, the supporting beam includes towards the bottom face at foundation pit bottom, one end of the hound and the support
The bottom face of beam is in fixed and arranged；Along the lattice column, two hounds are arranged symmetrically.
Compared with prior art, the support construction provided by the invention for reducing deep basal pit lattice column slenderness ratio, in deep basal pit
In supporting, supporting is carried out to deep basal pit using lattice column, by the way that supporting beam is arranged, enhances the setting stability of lattice column；Due to
One end of hound and supporting beam are in fixed and arranged, and the fixed lateral confining region of the other end of hound can reduce lattice column and exist
Computational length in the plane, the final slenderness ratio for reducing lattice column, makes it meet code requirement, guarantee lattice column mainly by
Stabilization in power plane；Structure is simple, construction is convenient, and when effectively avoiding reducing lattice column slenderness ratio, cost is excessively high.
Detailed description of the invention
Fig. 1 is the construction sectional view of the support construction provided by the invention for reducing deep basal pit lattice column slenderness ratio；
Fig. 2 is the three-dimensional signal of the connection structure of the support construction provided by the invention for reducing deep basal pit lattice column slenderness ratio
Figure；
Fig. 3 is the portion the A enlarged diagram of the support construction provided by the invention for reducing deep basal pit lattice column slenderness ratio；
Fig. 4 is the three-dimensional signal of the hound of the support construction provided by the invention for reducing deep basal pit lattice column slenderness ratio
Figure；
Fig. 5 is the stereoscopic schematic diagram of the body of rod of the support construction provided by the invention for reducing deep basal pit lattice column slenderness ratio；
Fig. 6 is the three-dimensional signal of the connection structure of the support construction provided by the invention for reducing deep basal pit lattice column slenderness ratio
Figure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Realization of the invention is described in detail below in conjunction with specific embodiment.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment；In description of the invention
In, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right" for based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore describe the use of positional relationship in attached drawing
Language only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term is understood as the case may be.
It is preferred embodiment provided by the invention referring to Fig.1 shown in -6.
The support construction provided by the invention for reducing deep basal pit lattice column slenderness ratio reduces lattice column slenderness ratio for solving
Mode complexity and the high problem of cost.
Reduce the support construction of 10 slenderness ratio of deep basal pit lattice column, including lattice column 10, supporting beam 20 and multiple diagonal braces
Bar 30, for lattice column 10 in being longitudinally arranged, multiple supporting beams 20 are in lateral arrangement, and one end of supporting beam 20 is in fixed and arranged, support
The fixed lattice column 10 of the other end of beam 20, lattice column 10 include multiple stress surfaces, and multiple stress surfaces are in enclosing arrangement, stress mask
There is sidewise restraint area, one end of hound 30 and supporting beam 20 are in fixed and arranged, the fixed sidewise restraint of the other end of hound 30
Area.
The support construction of above-mentioned reduction by 10 slenderness ratio of deep basal pit lattice column, in deep foundation pit support, using lattice column 10
Supporting is carried out to deep basal pit, by the way that supporting beam 20 is arranged, enhances the setting stability of lattice column 10；Due to one end of hound 30
It is in fixed and arranged with supporting beam 20, the fixed lateral confining region of the other end of hound 30 can reduce lattice column 10 in the plane
Interior computational length, the final slenderness ratio for reducing lattice column 10, makes it meet code requirement, guarantees lattice column 10 in main stress
Stabilization in plane；Structure is simple, construction is convenient, and when effectively avoiding reducing by 10 slenderness ratio of lattice column, cost is excessively high.
In the present embodiment, hound 30 includes the body of rod 31 and two connection structures 32, one end of the body of rod 31 and it is lateral about
Beam area is by one connection structure 32 in relatively fixed arrangement；The other end and supporting beam 20 of the body of rod 31 pass through another connection structure
32 in relatively fixed arrangement；The inclined arrangement of the body of rod 31.
The inclined arrangement of the body of rod 31, more preferably, and the body of rod 31 is in two connection structures 32 for the support effect of such body of rod 31
Under effect, the enhancing body of rod 31 installs stability.
The both ends of the body of rod 31 offer inwardly install slot 37 respectively；Connection structure 32 includes fixed plate 33 and connecting plate
34, one end of fixed plate 33, which is embedded in and is fixed on, installs slot 37, and the other end and connecting plate 34 of fixed plate 33 are in fixed and arranged, even
The fixed lateral confining region of the fitting of fishplate bar 34 or supporting beam 20；Increase the contact area of connecting plate 34 and sidewise restraint area, enhancing connects
The relatively fixed effect of fishplate bar 34 and lattice column 10 increases the contact area that connecting plate 34 and supporting beam 20 have, enhancing connection
The relatively fixed effect of plate 34 and supporting beam 20.
In addition, installing slot 37 since the insertion of fixed plate 33 is fixed, enhancing fixed plate 33 installs stability, to enhance bar
The relative securement of body 31 and attachment beam and lattice column 10.
Fixed plate 33 and the middle part of connecting plate 34 are fixed；And fixed plate 33 and the perpendicular arrangement of connecting plate 34, convenient for fixing
Plate 33 is embedded in the body of rod 31, cooperates convenient for the body of rod 31 and connecting plate 34, the enhancing body of rod 31 and attachment beam and lattice column 10 it is relatively steady
Solidity.
The both ends for installing slot 37 extend through the body of rod 31, and forming two is in port positioned opposite, the two sides of fixed plate 33
It extends respectively to outside two ports；Port tool is there are two being in side wall positioned opposite, and the body of rod 31 is equipped with securing plate 36, securing plate 36
The fixed one side wall in one end, the other end of securing plate 36 is disposed to extend along away from port direction, when the fixation of fixed plate 33 is installed
When slot 37, the attached fixed securing plate 36 of 36 note of securing plate.
Under the action of securing plate 36, enhance the relative immobility of fixed plate 33 and the body of rod 31；Also, pass through securing plate
36, it is connect with the body of rod 31 using welding manner convenient for fixed plate 33, it is easy to operate, convenient.
The two side walls of port are respectively equipped with securing plate 36, and fixed plate 33 installs fixed when installing slot 37, two securing plates
36 grip the securing plate 36 respectively；To enhance the stable connection of fixed plate 33 Yu the body of rod 31.
Along port direction is deviated from, the thickness of securing plate 36 is gradually decreased, and reduces manufacturing cost, meanwhile, it is convenient for securing plate 36
Effect is bonded with fixed plate 33.
Sidewise restraint area has multiple recessed grooves towards sunken inside, and along direction from top to bottom, recessed groove is in be longitudinally arranged, recessed
Fall into the top in slot perforation sidewise restraint area；Connecting plate 34 has the joint face towards sidewise restraint area, and joint face has multiple welderings
Narrow bars, welding item is along away from welding surface, in raised arrangement, when the fixed lateral confining region of connecting plate 34, welding item insertion is recessed
Slot, and weld a fixed swage slot；Under the mating reaction of welding item and recessed groove, enhancing connecting plate 34 and sidewise restraint area
Stable connection.
Furthermore sidewise restraint area has first longitudinal direction length, and recessed groove has second longitudinal direction length, first longitudinal direction length
The length that length is greater than second longitudinal direction length avoids connecting plate 34 from moving down in this way, recessed groove is played a supporting role, thus
Enhance the relative securement of connecting plate 34 and sidewise restraint area.
Connection structure 32 includes triangular strip 35, and there are two side, two perpendicular arrangements in side, two sides for the tool of triangular strip 35
Face is bonded respectively and is fixed on fixed plate 33 and connecting plate 34；Two junctions of fixed plate 33 and the connection formation of connecting plate 34, two
A junction is respectively fixed with triangular strip 35；Under the action of triangular strip 35, enhance the relatively steady of fixed plate 33 and connecting plate 34
Solidity.
In addition, by triangular strip 35, convenient for fixed plate 33 and connecting plate 34 using being welded to connect, consequently facilitating fixed plate 33
With the relative securement of connecting plate 34.
The rectangular arrangement of fixed plate 33, fixed plate 33 have four corners, and one corner is embedded in the body of rod 31；The body of rod 31
Central axis with the center of being in, one corner is in central axis；The advantages of this arrangement are as follows making the support center of the body of rod 31
It is partial to central axis, to make whole stability more preferably.
The stress surface of lattice column 10, which is equipped with, reinforces batten plate 38, reinforces the stress that the tiling of batten plate 38 is bonded fixed lattice column 10
Face reinforces batten plate 38 and forms sidewise restraint area；Under the action of reinforcing batten plate 38, enhancing connecting plate 34 is opposite with lattice column 10
Stability, and welded convenient for connecting plate 34 and lattice column 10.
The supporting beam 20 includes towards the bottom face at foundation pit bottom, one end of the hound 30 and the supporting beam 20
Bottom face is in fixed and arranged；Along lattice column 10, two hounds 30 are arranged symmetrically；Keep integrated support more uniform.
Prefabricated node can be fixed on the bottom face of supporting beam 20 by connecting plate 34 by expansion bolt, or in supporting beam
It is welded to connect in 20 by built-in fitting and connecting plate 34.
Fixed plate 33 and the perpendicular arrangement of supporting beam 20 make fixed plate 33 apply active force to connecting plate 34 and more preferably act on
In supporting beam 20.
Fixed plate 33 and the perpendicular arrangement of lattice column 10 make fixed plate 33 apply active force to connecting plate 34 and more preferably act on
On lattice column 10.
Lattice column 10, supporting beam 20 and hound 30 are arranged in triangular shape；Make lattice column 10, supporting beam 20 and hound 30
It is higher to form whole stability, improves support effect.
Lattice column 10 includes four stress surfaces, two-by-two the perpendicular arrangement of stress surface, and four stress surfaces enclose rectangular cloth
It sets；For stress surface in corresponding arrangement, two hounds 30 fix two in opposite stress surface, so that lattice be effectively reduced respectively two-by-two
Slenderness ratio of the structure column 10 in main plane of constraint.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. reducing the support construction of deep basal pit lattice column slenderness ratio, which is characterized in that including in longitudinally arranged lattice column, multiple
Supporting beam and multiple hounds in lateral arrangement, one end of the supporting beam are in fixed and arranged, the supporting beam it is another
The fixed lattice column in end, the lattice column includes multiple stress surfaces, and multiple stress surfaces are in enclosing arrangement, the stress surface
With sidewise restraint area, one end of the hound and the supporting beam are in fixed and arranged, and the other end of the hound is fixed
The sidewise restraint area.
2. reducing the support construction of deep basal pit lattice column slenderness ratio as described in claim 1, which is characterized in that the hound
Including the body of rod and two connection structures, one end of the body of rod is in by connection structure described in one with the sidewise restraint area
Relatively fixed arrangement；The other end of the body of rod and the supporting beam are arranged by another connection structure in relatively fixed；
The inclined arrangement of the body of rod.
3. reducing the support construction of deep basal pit lattice column slenderness ratio as claimed in claim 2, which is characterized in that the body of rod
Both ends offer inwardly install slot respectively；The connection structure includes fixed plate and connecting plate, and one end of the fixed plate is embedding
Enter and is fixed on slot, the other end of the fixed plate and the connecting plate installed in fixed and arranged, the connecting plate fitting
The fixed sidewise restraint area or supporting beam.
4. reducing the support construction of deep basal pit lattice column slenderness ratio as claimed in claim 3, which is characterized in that the fixed plate
It is fixed with the middle part of the connecting plate；And the fixed plate and the perpendicular arrangement of connecting plate.
5. reducing the support construction of deep basal pit lattice column slenderness ratio as claimed in claim 3, which is characterized in that described to install slot
Both ends extend through the body of rod, forming two is in port positioned opposite, and the two sides of the fixed plate extend respectively to two
Outside a port；The port tool is there are two being in side wall positioned opposite, and the body of rod is equipped with securing plate, one end of the securing plate
The other end of side wall described in fixed one, the securing plate is disposed to extend along away from the port direction, when the fixed institute of fixed plate
It states when installing slot, the securing plate note attached fixation securing plate.
6. the support construction of the reduction deep basal pit lattice column slenderness ratio as described in claim 3-5 any one, which is characterized in that
The sidewise restraint area has multiple recessed grooves towards sunken inside, and along direction from top to bottom, the recessed groove is in be longitudinally arranged, institute
State the top that recessed groove penetrates through the sidewise restraint area；The connecting plate has the joint face towards the sidewise restraint area, institute
Joint face is stated with multiple welding items, the welding item is along being in protrusion arrangement away from the welding surface, when the connecting plate is fixed
When the sidewise restraint area, the welding item is embedded in the recessed groove, and the fixed recessed groove of the welding item.
7. the support construction of the reduction deep basal pit lattice column slenderness ratio as described in claim 3-5 any one, which is characterized in that
The connection structure includes triangular strip, and there are two side, two perpendicular arrangements in side, described in two for the triangular strip tool
Side is bonded the fixed fixed plate and the connecting plate respectively；The fixed plate connects to form two connections with the connecting plate
Place, two junctions are respectively fixed with the triangular strip.
8. the support construction of the reduction deep basal pit lattice column slenderness ratio as described in claim 3-5 any one, which is characterized in that
The rectangular arrangement of fixed plate, the fixed plate have four corners, and corner described in one is embedded in the body of rod；It is described
The body of rod has the central axis in center, and corner described in one is in the central axis.
9. the support construction of the reduction deep basal pit lattice column slenderness ratio as described in claim 1-5 any one, which is characterized in that
The stress surface of the lattice column, which is equipped with, reinforces batten plate, the stress surface for reinforcing the fixed lattice column of batten plate tiling fitting, institute
It states reinforcement batten plate and forms the sidewise restraint area.
10. the support construction of the reduction deep basal pit lattice column slenderness ratio as described in claim 1-5 any one, feature exist
It include towards the bottom face at foundation pit bottom in, the supporting beam, the bottom face of one end of the hound and the supporting beam is in solid
Fixed arrangement；Along the lattice column, two hounds are arranged symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180068.5A CN109797754B (en) | 2019-03-11 | 2019-03-11 | Support structure for reducing length-to-thickness ratio of lattice column of deep foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180068.5A CN109797754B (en) | 2019-03-11 | 2019-03-11 | Support structure for reducing length-to-thickness ratio of lattice column of deep foundation pit |
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| CN109797754A true CN109797754A (en) | 2019-05-24 |
| CN109797754B CN109797754B (en) | 2021-04-20 |
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| CN103696497A (en) * | 2013-12-16 | 2014-04-02 | 浙江大学 | Connection method for solid-web brace and lattice type steel column |
| CN205242988U (en) * | 2015-12-17 | 2016-05-18 | 中国建筑第二工程局有限公司 | Cantilever type steel with inclined support at bottom |
| CN105908755A (en) * | 2016-05-31 | 2016-08-31 | 中铁第四勘察设计院集团有限公司 | Deep foundation pit supporting structure adopting steel pipe temporary strut |
| JP2018112021A (en) * | 2017-01-13 | 2018-07-19 | ジェコス株式会社 | Short strut brace connection structure and short strut brace connection piece |
| CN208486272U (en) * | 2018-06-15 | 2019-02-12 | 深圳市工勘岩土集团有限公司 | A kind of constructing structure of two-tube diagonal brace deep basal pit |
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2019
- 2019-03-11 CN CN201910180068.5A patent/CN109797754B/en active Active
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| CN103696497A (en) * | 2013-12-16 | 2014-04-02 | 浙江大学 | Connection method for solid-web brace and lattice type steel column |
| CN205242988U (en) * | 2015-12-17 | 2016-05-18 | 中国建筑第二工程局有限公司 | Cantilever type steel with inclined support at bottom |
| CN105908755A (en) * | 2016-05-31 | 2016-08-31 | 中铁第四勘察设计院集团有限公司 | Deep foundation pit supporting structure adopting steel pipe temporary strut |
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| CN208486272U (en) * | 2018-06-15 | 2019-02-12 | 深圳市工勘岩土集团有限公司 | A kind of constructing structure of two-tube diagonal brace deep basal pit |
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