CN214530683U - Connection structure of steel lattice column and steel reinforcement cage - Google Patents
Connection structure of steel lattice column and steel reinforcement cage Download PDFInfo
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- CN214530683U CN214530683U CN202023070898.XU CN202023070898U CN214530683U CN 214530683 U CN214530683 U CN 214530683U CN 202023070898 U CN202023070898 U CN 202023070898U CN 214530683 U CN214530683 U CN 214530683U
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Abstract
The utility model discloses a connection structure of steel lattice column and steel reinforcement cage, including lattice column and steel reinforcement cage and connection structure, the steel reinforcement cage includes main muscle, spiral stirrup and stiffening rib, and main muscle is cyclic annular and arranges side by side, and spiral stirrup is the heliciform and coils in the main muscle outside, and stiffening rib is the ring form and fixes in the cyclic annular inboard of main muscle, and connection structure includes the fixed well word muscle in upper end that the structure is the same and the fixed well word muscle of lower extreme, and four reinforcing bars of the fixed well word muscle of lower extreme weld on four sides and eight tip welded connection of lattice column on stiffening rib. The center of the steel lattice column and the center of the steel reinforcement cage are kept centered by a measuring instrument, and then the lattice column and the steel reinforcement cage are welded to form rigid connection through two fixed cross-shaped ribs, so that the lattice column and the steel reinforcement cage are kept centered forcibly, eccentricity is prevented, and the verticality deviation of the lattice column caused by installation errors is reduced.
Description
Technical Field
The utility model belongs to underground building construction field, in particular to connection structure of steel lattice column and steel reinforcement cage.
Background
The reinforced concrete truss inner support supporting system is a structural system for supporting a foundation pit by using a reinforced concrete truss, and mainly utilizes the stability, stronger rigidity and smaller self deformability of the self structure of the truss to support the foundation pit.
In the reinforced concrete truss inner support supporting system, the steel lattice column plays roles of fixing the support beam, reducing the bending moment of the support beam, bearing the weight of the inner support beam and the like. If the verticality deviation of the steel lattice column is too large, the following adverse effects are generated on foundation pit support:
1. the bending moment of the lattice column is increased, so that the lattice column is easy to deform;
2. the settlement of the lattice columns is not uniform, and the horizontal integral stress of the support system in the truss is influenced;
3. the integrity of a supporting beam system is influenced, so that the concrete beam cracks, and the safety of foundation pit supporting is influenced.
Therefore, when the lattice column is hoisted, effective measures are needed to be taken to ensure the verticality of the lattice column so as to ensure the safety of the support and protection system in the truss and meet the requirement of foundation pit deformation control.
According to the current method, as shown in fig. 1 and fig. 2, a method of adding an unfixed cross-shaped rib 4 to an inclined hanging rib 3 is adopted, namely, the symmetrical inclined hanging rib 3 is welded on a lattice column 1, the upper end of the hanging rib is connected with the lattice column 1, the lower end of the hanging rib is connected with a main rib 21 of a steel reinforcement cage 2, the steel reinforcement cage 2 is hung on the lattice column 1, then the unfixed cross-shaped rib 4 is welded on the steel reinforcement cage 2, and the gap between the unfixed cross-shaped rib 4 and the lattice column 1 is about 2-3 cm. The lattice column 1 and the reinforcement cage 2 are in flexible connection in the connection mode, the lattice column 1 has certain degree of freedom, and the requirement on welding quality of the oblique hanging ribs 3 is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a connection structure of steel lattice column and steel reinforcement cage for solve the current connection structure of steel lattice column unreasonable and lead to hanging down the straightness precision poor and make the technical problem who produces harmful effects to the excavation supporting in the steel reinforcement cage.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a connection structure of steel lattice column and steel reinforcement cage, includes lattice column and steel reinforcement cage and connection structure, the steel reinforcement cage includes main muscle, spiral stirrup and stiffening rib, and main muscle is cyclic annular and arranges side by side, and the spiral stirrup is the heliciform and coils in the main muscle outside, and the stiffening rib is the ring form and fixes in the cyclic annular inboard of main muscle, connection structure includes the fixed well word muscle in upper end and the fixed well word muscle of lower extreme that the structure is the same, and the fixed well word muscle in upper end and the fixed well word muscle of lower extreme interval set up on the direction of height, and the fixed well word muscle of lower extreme includes four reinforcing bars that are well word and arrange, and four reinforcing bars welding of the fixed well word muscle of lower extreme are on the stiffening rib at four sides and eight tip welded connection of lattice column.
By adopting the technical scheme, the center of the steel lattice column and the center of the steel reinforcement cage are kept centered by the measuring instrument, and then the lattice column and the steel reinforcement cage are welded to form rigid connection through two fixed cross-shaped ribs, so that the lattice column and the steel reinforcement cage are kept in forced centering, the occurrence of eccentricity is prevented, and the verticality deviation of the lattice column caused by installation errors is reduced.
Preferably, the anti-falling ribs are welded between the main ribs on two sides of the end part of the lower end fixing # -shaped rib respectively and are positioned at the top of the lower end fixing # -shaped rib.
Through adopting above-mentioned technical scheme, if steel reinforcement cage and # -shaped muscle connection position when crackle appears, prevent weighing down the muscle through putting up on the # -shaped muscle, hang the steel reinforcement cage, guarantee that steel reinforcement cage and # -shaped muscle still can reliably be connected, guarantee the security of construction.
Preferably, four reinforcing bars of the fixed # -shaped muscle of lower extreme include upper and lower two-layer, and two relative reinforcing bars are located the same layer, prevent weighing down the muscle setting on the top of lower floor.
Through adopting above-mentioned technical scheme, it is better to connect anti-falling effect.
Preferably, the lower end fixing cross rib is connected with the stiffening rib in a spot welding mode.
Through adopting above-mentioned technical scheme, connect stably firm.
Preferably, the lower end fixing cross-shaped rib is in full-welding connection with the lattice column.
Through adopting above-mentioned technical scheme, connect stably firm.
Preferably, the height difference between the upper end fixed cross rib and the lower end fixed cross rib is not less than 2 m.
Through adopting above-mentioned technical scheme, guarantee that lattice column and steel reinforcement cage have enough intensity's stability under the fixed groined type muscle of upper end and lower extreme.
Preferably, the reinforcing steel bar with the lower end fixed with the # -shaped reinforcing steel bar is HRB400 reinforcing steel bar, and the diameter of the reinforcing steel bar is not less than phi 25.
Through adopting above-mentioned technical scheme, sound construction is stable.
The beneficial effects of the utility model are embodied in: the center of the steel lattice column and the center of the steel reinforcement cage are kept centered by a measuring instrument, and then the lattice column and the steel reinforcement cage are welded to form rigid connection through two fixed cross-shaped ribs, so that the lattice column and the steel reinforcement cage are kept centered forcibly, eccentricity is prevented, and the verticality deviation of the lattice column caused by installation errors is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description.
Drawings
FIG. 1 is a schematic view of a connecting elevation of the background art of the present invention;
FIG. 2 is a top view of the prior art connection of the present invention;
fig. 3 is a schematic view of a connection elevation of an embodiment of the present invention;
fig. 4 is a top view of the connection completion of an embodiment of the present invention;
fig. 5 is a bottom layer one-connection completion diagram of the embodiment of the present invention;
fig. 6 is a bottom two connection completion diagram according to the embodiment of the present invention;
fig. 7 is a schematic front view of an operation rack according to an embodiment of the present invention.
Reference numerals: 1. a lattice column; 2. a reinforcement cage; 21. a main rib; 22. a spiral stirrup; 23. a stiffening rib; 3. obliquely hanging a rib; 4. non-fixed cross-shaped ribs; 5. a connecting structure; 51. the upper end is fixed with a # -shaped rib; 52. the lower end is fixed with a # -shaped rib; 53. anti-falling ribs; 6. and an operation frame.
Detailed Description
The technical solutions of the present invention are described in detail below by way of examples, which are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not for explaining the limitations of the technical solutions of the present invention.
Combine fig. 3 and fig. 4, a connection structure of steel lattice column and steel reinforcement cage, including lattice column 1 and steel reinforcement cage 2 and connection structure 5, steel reinforcement cage 2 includes main muscle 21, spiral stirrup 22 and stiffening rib 23, main muscle 21 is cyclic annular and arranges side by side, spiral stirrup 22 is the heliciform and coils in the main muscle 21 outside, stiffening rib 23 is the ring form and fixes in the cyclic annular inboard of main muscle 21, connection structure 5 is including the fixed well word muscle 51 of the upper end that the structure is the same and the fixed well word muscle 52 of lower extreme, the fixed well word muscle 51 of upper end and the fixed well word muscle 52 of lower extreme interval setting on the direction of height, the fixed well word muscle 52 of lower extreme includes four reinforcing bars that are well word and arrange, four reinforcing bars welding of the fixed well word muscle 52 of lower extreme are on four sides and eight tip welded connection of lattice column 1 are on stiffening rib 23.
The center of the steel lattice column 1 and the center of the steel reinforcement cage 2 are kept centered by a measuring instrument, and then the lattice column 1 and the steel reinforcement cage 2 are welded to form rigid connection through two fixed cross-shaped ribs, so that the lattice column 1 and the steel reinforcement cage 2 are kept centered forcibly, eccentricity is prevented, and the verticality deviation of the lattice column 1 caused by installation errors is reduced.
The welding connection respectively between the main muscle 21 of the both sides of the fixed well word muscle 52 of lower extreme falls to prevent weighing down muscle 53, prevents weighing down muscle 53 and is located the top of the fixed well word muscle 52 of lower extreme, if when the steel reinforcement cage 2 and well word muscle connection position crackle appeared, prevents weighing down muscle 53 through putting up on the well word muscle, hangs steel reinforcement cage 2, guarantees that steel reinforcement cage 2 and well word muscle still can reliably be connected, guarantees the security of construction, and the fixed well word muscle 51 top of upper end is provided with equally prevents weighing down muscle 53.
Four reinforcing bars of the fixed # -shaped rib 52 of lower extreme include upper and lower two-layer, and two relative reinforcing bars are located the same layer, prevent weighing down muscle 53 and set up the top at the lower floor, and it is better to connect and prevent weighing down the effect, and the fixed # -shaped rib 51 of upper end prevents weighing down muscle 53 setting mode and the fixed # -shaped rib 52 of lower extreme unanimously.
The lower end fixing cross rib 52 is connected with the stiffening rib 23 in a spot welding mode, and the connection is stable and firm. The lower end fixing # -shaped rib 52 is in full-welding connection with the lattice column 1, and the connection is stable and firm. The height difference between the upper end fixed # -shaped rib 51 and the lower end fixed # -shaped rib 52 is not less than 2m, so that the stability of enough strength is ensured under the fixation of the upper end fixed # -shaped rib 51 and the lower end fixed # -shaped rib 52 of the lattice column 1 and the reinforcement cage 2. The reinforcing steel bar of the lower end fixed cross rib 52 adopts HRB400 reinforcing steel bar, the diameter is not less than phi 25, and the structure is firm and stable.
A construction method of a connection structure of a steel lattice column and a steel reinforcement cage comprises the following steps,
step one, after the steel reinforcement cage 2 is hoisted to design an installation elevation, inserting a cross arm, and adjusting the position of the steel reinforcement cage 2 to ensure that the center of the steel reinforcement cage 2 is superposed with the center of a pile hole and is fixed;
hoisting the lattice column 1 and inserting the lattice column 1 into the reinforcement cage 2, checking and adjusting the position of the lattice column 1 by using a measuring instrument after the lattice column 1 is hoisted to a designed connection elevation, and keeping the center of the lattice column 1 consistent with the center of the reinforcement cage 2;
thirdly, welding the lower end fixing cross-shaped ribs 52, and sequentially and respectively welding the four reinforcing steel bars with the latticed column 1 and the stiffening ribs 23;
welding the upper end fixing # -shaped rib 51 to ensure that the distance between the upper end fixing # -shaped rib 51 and the lower end fixing # -shaped rib 52 is not less than 2 m;
and fifthly, after the lattice column 1 and the reinforcement cage 2 are connected and fixed, integrally hoisting the lattice column 1 and the reinforcement cage 2, pulling out the cross arm, and hoisting the connected lattice column 1 and the reinforcement cage 2 into the hole.
The center of the steel lattice column 1 and the center of the steel reinforcement cage 2 are kept centered by a measuring instrument, and then the lattice column 1 and the steel reinforcement cage 2 are welded to form rigid connection through two fixed cross-shaped ribs, so that the lattice column 1 and the steel reinforcement cage 2 are kept centered forcibly, eccentricity is prevented, and the verticality deviation of the lattice column 1 caused by installation errors is reduced.
With reference to fig. 5-6, in step three, the four reinforcing bars of the lower end fixing cross rib 52 comprise an upper layer and a lower layer, two opposite reinforcing bars are located on the same layer, the two reinforcing bars on the lower layer are welded firstly, two ends of the two reinforcing bars on the lower layer are respectively connected with the stiffening ribs 23 in a spot welding mode, then the middle of the two reinforcing bars are in full-welding connection with the lattice column 1, the anti-falling ribs 53 are welded again, two ends of the anti-falling ribs 53 are in spot welding connection with the main rib 21, then the two reinforcing bars on the upper layer are welded, the anti-falling ribs do not need to be welded at two ends of the two reinforcing bars on the upper layer, after welding of the anti-falling ribs 53 is completed, rigid connection between the reinforcement cage and the lattice column can be formed in advance, and vertical deformation of the reinforcement cage caused by insufficient cracking of the cross rib and the stiffening ribs in the process of hoisting and placing into the hole in the later period can be prevented.
As shown in fig. 7, before the first step, a preparation step is further included, i-steel is adopted to manufacture the operation frame 6 with the thickness of 1.8mx2.0m, the operation frame 6 is placed on the pile hole and leveled, the center of the operation frame 6 is consistent with that of the pile hole, and welding operation is conveniently performed on the upper end fixing # -shaped rib 51.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be considered by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. The utility model provides a connection structure of steel lattice column and steel reinforcement cage which characterized in that: including lattice column (1) and steel reinforcement cage (2) and connection structure (5), steel reinforcement cage (2) are cyclic annular and arrange side by side including main muscle (21), spiral stirrup (22) and stiffening rib (23), and spiral stirrup (22) are the heliciform and coil in the main muscle (21) outside, and stiffening rib (23) are the ring form and fix in main muscle (21) annular inboard, connection structure (5) are including the fixed well word muscle (51) in upper end that the structure is the same and the fixed well word muscle (52) of lower extreme, and the fixed well word muscle (51) in upper end and the fixed well word muscle (52) of lower extreme set up at the interval in the direction of height, and the fixed well word muscle (52) of lower extreme includes four reinforcing bars that are well word and arrange, and four welding of the fixed well word muscle (52) of lower extreme are on four sides and eight tip welded connection of lattice column (1) are on stiffening rib (23).
2. A connection structure of a steel lattice column and a reinforcement cage according to claim 1, wherein: the anti-falling rib (53) is welded between the main ribs (21) on the two sides of the end part of the lower end fixing # -shaped rib (52) respectively, and the anti-falling rib (53) is positioned at the top of the lower end fixing # -shaped rib (52).
3. A connection structure of a steel lattice column and a reinforcement cage according to claim 2, wherein: four reinforcing bars of the lower end fixing cross-shaped rib (52) comprise an upper layer and a lower layer, two opposite reinforcing bars are positioned on the same layer, and the anti-falling rib is arranged at the top end of the lower layer.
4. A connection structure of a steel lattice column and a reinforcement cage according to claim 1, wherein: the lower end fixing cross-shaped rib (52) is connected with the stiffening rib (23) in a spot welding mode.
5. A connection structure of a steel lattice column and a reinforcement cage according to claim 1, wherein: the lower end fixing cross-shaped rib (52) is in full-welding connection with the lattice column (1).
6. A connection structure of a steel lattice column and a reinforcement cage according to claim 1, wherein: the height difference between the upper end fixed # -shaped rib (51) and the lower end fixed # -shaped rib (52) is not less than 2 m.
7. A connection structure of a steel lattice column and a reinforcement cage according to claim 1, wherein: the reinforcing steel bar of the lower end fixing cross rib (52) adopts HRB400 reinforcing steel bar and the diameter is not less than phi 25.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023070898.XU CN214530683U (en) | 2020-12-18 | 2020-12-18 | Connection structure of steel lattice column and steel reinforcement cage |
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| CN202023070898.XU CN214530683U (en) | 2020-12-18 | 2020-12-18 | Connection structure of steel lattice column and steel reinforcement cage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960629A (en) * | 2022-07-13 | 2022-08-30 | 中亿丰建设集团股份有限公司 | Construction method for overlength anchoring of lattice column in shared upright column pile into cast-in-place pile |
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2020
- 2020-12-18 CN CN202023070898.XU patent/CN214530683U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960629A (en) * | 2022-07-13 | 2022-08-30 | 中亿丰建设集团股份有限公司 | Construction method for overlength anchoring of lattice column in shared upright column pile into cast-in-place pile |
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