CN107700473B - I-steel joint welded with stud - Google Patents
I-steel joint welded with stud Download PDFInfo
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- CN107700473B CN107700473B CN201710737850.3A CN201710737850A CN107700473B CN 107700473 B CN107700473 B CN 107700473B CN 201710737850 A CN201710737850 A CN 201710737850A CN 107700473 B CN107700473 B CN 107700473B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
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Abstract
The invention discloses an I-shaped steel joint welded with a stud, and relates to the technical field of underground continuous wall construction in a foundation pit enclosure structure; two side surfaces of the web plate are respectively and closely arranged on the first-stage underground continuous wall section and the second-stage underground continuous wall, and the reinforcement cage of the first-stage underground continuous wall section is respectively welded with the two wing plates of the I-shaped steel; the plugging plate is arranged in a groove of the I-shaped steel at one side close to the second-stage underground continuous wall, and the groove of the plugging plate is arranged facing to a web plate of the I-shaped steel; and a plurality of rows of studs are welded at the middle part of the web plate and at one side close to the second-stage underground continuous wall. The wall of the I-shaped steel is not required to be brushed to remove mud, the I-shaped steel is isolated from the slurry, and the cleanness of the I-shaped steel is ensured; the stud is welded on the I-shaped steel web plate and anchored into concrete of the second-stage continuous wall section, so that the connector is high in bending resistance and bearing capacity and high in deformation resistance, the anti-permeability capacity of the I-shaped steel connector is improved, and the practicability is higher.
Description
Technical Field
The invention relates to the technical field of construction of underground continuous walls in foundation pit enclosing structures, in particular to an I-shaped steel joint welded with studs.
Background
At present, the construction of subway stations and high-rise building basements needs to be carried out to vertical soil retaining structures, the vertical soil retaining structures mainly have forms such as bored piles, underground continuous walls, SMW (soil mixing wall) construction method piles, steel sheet piles and cement mixing walls, and when a foundation pit is deep, the intensity of a soil body in the ground is low, the water level is high, and a building is arranged on the periphery of the foundation pit, the underground continuous walls are mostly adopted as the vertical soil retaining structures. The underground continuous wall is generally constructed along the wall sections around the foundation pit, a first-stage underground continuous wall section is generally constructed firstly, after the strength of the first-stage underground continuous wall reaches the design strength, a second-stage underground continuous wall section is constructed, and an I-steel joint, a cross-shaped steel plate joint or a locking pipe joint and the like are arranged between the first-stage underground continuous wall section and the second-stage underground continuous wall section.
The cross steel plate joint consists of a cross steel plate and a sliding plate type joint box, is adopted when having special requirements on the integral rigidity or seepage prevention of the underground diaphragm wall, and has the advantages that: 1) The steel plate is arranged in the middle of the joint, so that the water seepage path is prolonged, and the anti-seepage performance is good; 2) The shearing resistance is better; but the disadvantages are: 1) The process is multiple, the construction is complex, and the difficulty is higher; 2) The wall brushing and the removal of the slurry on the side wall of the wall section have certain difficulty; 3) The bending resistance is not ideal; 4) The steel plate consumption is more, and the cost is higher.
When the underground continuous wall adopts the I-shaped steel joint, after the second-stage underground continuous wall section is grooved, the web and the wing plate of the I-shaped steel need to be brushed and the soil skin is cleaned. Theoretically, when the I-shaped steel joint is adopted, the problem of water leakage cannot occur at the I-shaped steel joint. However, in practical engineering, water leakage often occurs at the joint of the i-steel, and as a result, the underground water level of the site around the foundation pit is lowered and the surrounding buildings are settled and cracked. Therefore, extra water stopping measures (such as stirring piles and high-pressure jet grouting piles) are often required to be implemented on the outer side of the I-shaped steel joint, and the implementation of the extra water stopping measures can prolong the construction period and increase the construction cost.
If the underground diaphragm wall is used as an integral part of the underground main structure, the underground diaphragm wall must be durable and have no leakage in the whole structure. The wall bodies of all the sections of the underground continuous wall can meet the design requirements, and the connection structure among all the sections of the underground continuous wall is a key core link of an underground continuous wall system. At present, if the underground diaphragm wall is used as the outer wall of a main body structure, buttress columns and water stopping measures need to be applied to joint positions, so that the construction cost is undoubtedly increased.
The reason for causing the I-steel joint water leakage between the underground continuous walls is as follows: 1) The web plate and the wing plate wall of the I-shaped steel joint are locally adhered with mud skin, and the wall is brushed to remove mud, so that the quality defect exists; 2) The I-steel joint has low bending resistance, the concrete of the second-stage underground continuous wall section is only bonded with the I-steel joint wall, the bonding strength is low, and the I-steel joint and the concrete are easy to crack due to the inconsistency of foundation pit earthwork excavation and support frame arrangement at two sides of the I-steel joint; (3) Shrinkage can be generated in the concrete hardening process, and a gap can be generated between the I-shaped steel joint and the concrete. Therefore, to solve the problem of leakage of the I-steel joint between the underground continuous walls, improvements are needed from the following aspects: 1) The wall brushing and mud cleaning quality of the I-shaped steel joint is improved, and the wall brushing and mud cleaning of the I-shaped steel joint can be performed underwater and cannot be checked and monitored; 2) The bending strength between the I-shaped steel joint and the concrete of the second-stage underground continuous wall section is improved; 3) And water stopping measures are taken between the I-shaped steel joint and the concrete.
Therefore, how to improve the bending resistance bearing capacity and the leakage resistance between the underground I-steel joint and the second-stage underground continuous wall section concrete, improve the wall brushing and mud cleaning quality of the I-steel joint, and even cancel the wall brushing and mud cleaning process of the I-steel joint is a technical difficulty which is present for engineering technicians in the field.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides the I-shaped steel joint welded with the stud, which has the advantages of simple structure, reasonable design and convenient use, does not need to brush the wall of the I-shaped steel for cleaning mud, isolates the I-shaped steel from the mud, and ensures the cleanness of the I-shaped steel; the stud is welded on the I-shaped steel web plate and anchored into concrete of the second-stage continuous wall section, so that the connector is high in bending resistance and bearing capacity and high in deformation resistance, the anti-permeability capacity of the I-shaped steel connector is improved, and the practicability is higher.
In order to realize the purpose, the invention adopts the technical scheme that: it comprises I-steel, a stud and a plugging plate; the I-shaped steel is formed by welding a web plate and two wing plates positioned on two sides of the web plate; two side surfaces of the web plate are respectively and closely arranged on the first-stage underground continuous wall section and the second-stage underground continuous wall, and a reinforcement cage of the first-stage underground continuous wall section is respectively welded with the two wing plates of the I-shaped steel; the plugging plate is arranged in a groove of the I-shaped steel at one side close to the second-stage underground continuous wall, and the groove of the plugging plate is arranged facing to a web plate of the I-shaped steel; and a plurality of rows of studs are welded at the middle part of the web plate and at one side close to the second-stage underground continuous wall.
Furthermore, the plugging plate consists of a tank bottom steel plate, a side steel plate, a rib plate, a rubber plate, a top rubber plate, a first top steel plate and a second top steel plate; the bottom steel plate is parallel to the web plate, the side steel plates are parallel to the wing plates and are arranged at a certain distance from the wing plates, and one end of each of the two side steel plates is welded with the bottom steel plate; the second top steel plate is positioned on the top surface of the side steel plate and welded with the side steel plate, and the second top steel plate is perpendicular to the tank bottom steel plate and welded with the tank bottom steel plate; the first top steel plate is positioned at the top of the second top steel plate and is arranged at a certain distance from the second top steel plate, and the first top steel plate is perpendicular to the tank bottom steel plate and is welded with the inner side surface of the tank bottom steel plate; the top rubber plate is clamped between the first top steel plate and the second top steel plate; the two rubber plates are respectively clamped between the two side steel plates and the two wing plates, and the contact surfaces of the rubber plates and the top rubber plate are connected in a vulcanization mode; and a plurality of rib plates are arranged on the inner side of the side steel plate at intervals in the vertical direction, and the rib plates are respectively welded with the tank bottom steel plate and the side steel plate.
Further, the thickness of the rubber plate is larger than the distance between the side steel plate and the I-shaped steel wing plate.
Furthermore, the thickness of one end of the rubber plate close to the steel plate at the bottom of the groove is larger than that of the other end of the rubber plate.
Furthermore, the rubber plate is connected with the side steel plate through bolts and adhesive.
Furthermore, a bottom steel plate is arranged at the bottom of the plugging plate and is positioned at the first position of the I-shaped steel close to the second-stage continuous wall; the bottom steel sheet welds with web and pterygoid lamina respectively, adopts sealed glue sealed between shutoff board and the bottom steel sheet.
Furthermore, a plurality of nuts are welded on the top surface of the outer side of the bottom steel plate, and corresponding bolts are arranged on the nuts.
Furthermore, two groove-shaped clamping pieces are arranged between the plugging plate and the top of the web plate, the groove-shaped clamping pieces are U-shaped steel plates, two round holes are formed in the middles of the groove-shaped clamping pieces, long holes are formed in wing plates at the positions corresponding to the round holes, and the groove-shaped clamping pieces are fixedly connected with the wing plates through bolts.
After adopting the structure, the invention has the beneficial effects that: according to the I-shaped steel joint welded with the stud, the wall of the I-shaped steel does not need to be brushed to remove mud, the I-shaped steel is isolated from the mud, and the cleanness of the I-shaped steel is guaranteed; the I-steel web plate is welded with the stud which is anchored into the concrete of the second-stage continuous wall section, the joint has high bending resistance and bearing capacity and strong deformation resistance, the impermeability of the I-steel joint is improved, and the practicability is stronger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic horizontal cross-section of the present invention within a wall.
FIG. 2 is a schematic horizontal section view of the present invention in a second-stage diaphragm wall grooving operation.
Fig. 3 is a schematic view of the bottom vertical section of the plugging plate of the present invention.
Fig. 4 is a schematic top vertical section of the plugging plate of the present invention.
FIG. 5 is a schematic horizontal cross-section of the plugging plate of the present invention.
Fig. 6 is a schematic elevation view of the closure panel of the present invention.
FIG. 7 is a schematic view of a trough clip installed on the top of a blanking panel according to the present invention.
Fig. 8 is a schematic view of a channel clip according to the present invention.
Fig. 9 is a schematic view of a rubber sheet in the present invention.
Fig. 10 is a schematic horizontal cross-sectional view of an embodiment.
Description of reference numerals:
pterygoid lamina 1, web 2, peg 3, shutoff board 4, tank bottom steel sheet 41, side steel sheet 42, floor 43, rubber slab 44, first top steel sheet 45, nut 46, bolt 47, top rubber sheet 48, second top steel sheet 49, first stage underground continuous wall section steel reinforcement cage 5, bottom steel sheet 6, second stage underground continuous wall section steel reinforcement cage 7, band steel 8, apron 9, flute profile fastener 10, first stage underground continuous wall section I, second stage underground continuous wall section II.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 9, the technical solution adopted by the present embodiment is: the plug comprises I-shaped steel, a stud 3 and a plugging plate 4; the I-shaped steel is formed by welding a web plate 2 and two wing plates 1 positioned on two sides of the web plate 2; two side surfaces of the web plate 2 are respectively and closely attached to the first-stage underground continuous wall section I and the second-stage underground continuous wall section II, and the reinforcement cage 5 of the first-stage underground continuous wall section is respectively welded with the two wing plates 1 of the I-shaped steel; the plugging plate 4 is arranged in a groove of the I-shaped steel on one side close to the second-stage underground continuous wall section II, and the groove of the plugging plate 4 is arranged facing to the web 2 of the I-shaped steel; and a plurality of rows of studs 3 are welded at the middle part of the web 2 and at one side close to the second-stage underground continuous wall section II.
Further, the distance between the centers of the several rows of pegs 3 is 260mm, the vertical distance between the pegs 3 is 150mm, the diameter of the peg 3 is 16mm, the length of the peg 3 is 150mm, and the height of the peg 3 along the vertical wing plate 1 is 200mm higher than the top surface of the web 2.
Furthermore, the plugging plate 4 is composed of a groove bottom steel plate 41, a side steel plate 42, a rib plate 43, a rubber plate 44, a top rubber plate 48, a first top steel plate 45 and a second top steel plate 49; wherein the tank bottom steel plate 41 is arranged in parallel with the web plate 2, the side steel plates 42 are arranged in parallel with the wing plates 1 and are arranged at a certain distance from the wing plates 1, and one end of each of the two side steel plates 42 is welded with the tank bottom steel plate 41; the second top steel plate 49 is positioned on the top surface of the side steel plate 42 and welded with the side steel plate 42, and the second top steel plate 49 is vertically arranged with the tank bottom steel plate 41 and welded with the tank bottom steel plate 41; the first top steel plate 45 is positioned at the top of the second top steel plate 49 and is arranged at a certain distance from the second top steel plate 45, and the first top steel plate 45 is arranged vertically to the tank bottom steel plate 41 and is welded with the inner side surface of the tank bottom steel plate 41; the top rubber plate 48 is sandwiched between the first top steel plate 45 and the second top steel plate 49; the two rubber plates 44 are respectively clamped between the two side steel plates 42 and the two wing plates 1, and the contact surfaces of the rubber plates 44 and the top rubber plate 48 are connected in a vulcanization mode; a plurality of rib plates 43 are vertically arranged on the inner side of the side steel plate 42 at intervals, and the rib plates 43 are respectively welded with the groove bottom steel plate 41 and the side steel plate 42.
Further, the thickness of the rubber plate 44 is larger than the distance between the side steel plate 42 and the i-steel wing plate 1.
Further, the rubber plate 44 has a greater thickness at one end closer to the groove bottom steel plate 41 than at the other end.
Further, the rubber plate 44 is connected with the side steel plate 42 through bolts and adhesive.
Further, a bottom steel plate 6 is arranged at the bottom of the plugging plate 4 and on one side II, close to the second-stage continuous wall, of the I-steel; the bottom steel plate 6 is respectively welded with the web plate 2 and the wing plate 1, and the plugging plate 4 and the bottom steel plate 6 are sealed by sealant.
Furthermore, a plurality of nuts 46 are welded on the top surface of the outer side of the bottom end steel plate 6, the specification of the nuts 46 is' M16, corresponding bolts 47 are arranged on the nuts 46, and one end of each bolt is tightly pressed against the outer side surface of the plugging plate 4 by tightening the bolts 47.
Further, two groove-shaped clamping pieces 10 are arranged between the plugging plate 4 and the top of the web plate 2, the groove-shaped clamping pieces 10 are U-shaped steel plates, two round holes (not shown in the figure) are arranged in the middles of the groove-shaped clamping pieces 10, long holes (not shown in the figure) are arranged on wing plates at the positions corresponding to the round holes, the groove-shaped clamping pieces 10 are fixedly connected with the wing plates 1 through bolts, the diameter of each bolt is 25mm, and the bolt for fixing the groove-shaped clamping pieces and the wing plates of the I-shaped steel is released before the top of a reinforcement cage of a first-stage continuous wall section is inserted into a base groove; the thickness of the steel plate of the groove-shaped clamping piece 10 is 20mm, the length L3=340mm, the length L4=190mm of the groove body, the horizontal outer width H3=130mm, and the horizontal inner width H4=55mm.
Further, the bottom steel plate 6 has dimensions of 220mm × 930mm × 12mm.
Further, the rib plates 43 are vertically arranged at intervals of 300 mm; the rib plate 43 is a right-angled triangle, the side length of the right angle is 120mm, and the thickness of the rib plate is 7mm.
Furthermore, the width of the steel plate 41 at the bottom of the groove is 880mm, and the thickness of the steel plate is 20mm; the height of the side steel plate 42 is 150mm, and the thickness of the steel plate is 10mm; the distance between the side steel plate 42 and the inner side surface of the wing plate 1 is 90mm; the first top steel plate has the size of 145mm × 880mm × 10mm, and the second top steel plate has the size of 145mm × 700mm × 10mm; the distance between the first top end steel plate 45 and the second top steel plate 49 is 90mm; the welding height of the side steel plate 42 and the groove bottom steel plate 41 is 12mm, and a triangular welding seam is adopted; the first top steel plate 45 is welded with the bottom steel plate 41, and the height of a welding seam is 12mm; the cross-sectional dimensions of the rubber plate 44 and the top rubber plate 48 are shown in fig. 9, L6=105mm, L7=95mm, and L5=175mm, wherein L6 and L7 are the horizontal widths of the rubber plate 44 and can be adjusted according to the rubber hardness, L5 is the length of the rubber plate 44, and the compression thickness of each side rubber plate 44 is designed to be 5-15 mm along the transverse direction after the plugging plate 4 is installed in place; the first top steel plate 45 is 110mm away from the top surface of the web 2, and the bottom steel plate 6 is about 250mm away from the bottom surface of the i-beam web.
The construction flow of the embodiment is as follows:
1) Firstly, manufacturing I-shaped steel, then firmly welding the stud 3 and the web 2 of the I-shaped steel, then welding the bottom steel plate 6 and the I-shaped steel, and processing the plugging plate 4;
2) Performing first-stage underground diaphragm wall section I grooving operation and foundation cleaning;
3) Arranging a plugging plate 4 in a space formed by two wing plates 1 and web plates 2 close to a second-stage underground continuous wall section II on an I-shaped steel, welding a plurality of nuts 46 at the outer edge of the top surface of a bottom end steel plate 6, installing corresponding bolts 47 on the nuts 46, enabling the inner ends of the bolts 47 to abut against the lower part of the outer end surface of the plugging plate 4, and then sealing a gap between the plugging plate 4 and the bottom end steel plate 6 by using a sealant;
4) Manufacturing a reinforcement cage of the first-stage underground continuous wall section I, and respectively welding the reinforcement cage 5 of the first-stage underground continuous wall section with the two wing plates 1 of the I-shaped steel;
5) Inserting a first-stage underground continuous wall section steel reinforcement cage 5 after the first-stage underground continuous wall section I is grooved and foundation is cleared, removing the bolt connection between the groove-shaped clamping piece 10 and the I-shaped steel wing plate 1 just before the top of the first-stage underground continuous wall section steel reinforcement cage 5 is inserted into the foundation groove, and pouring concrete in time;
6) After the second-stage underground continuous wall section II is grooved and cleaned, the groove-shaped clamping piece 10 and the plugging plate 4 are taken out;
7) And inserting the second-stage underground continuous wall section steel reinforcement cage 7, and pouring concrete in time.
After adopting above-mentioned structure, this embodiment beneficial effect does: according to the I-shaped steel joint welded with the stud in the specific embodiment, the wall of the I-shaped steel does not need to be brushed to remove mud, the I-shaped steel is isolated from the mud, and the cleanness of the I-shaped steel is guaranteed; the I-steel web plate is welded with the stud which is anchored into the concrete of the second-stage continuous wall section, the joint has high bending resistance and bearing capacity and strong deformation resistance, the impermeability of the I-steel joint is improved, and the practicability is stronger.
Example (b):
referring to fig. 10, in the present embodiment, a row of studs 3 is welded on the web 2 near the middle of the side surface of the second-stage underground continuous wall section ii, the vertical spacing between adjacent studs 3 is 100mm, and the rest of the components and the connection relationship are the same as those in the first embodiment.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a weld I-steel that has a peg connects which characterized in that: the plug comprises I-shaped steel, a stud and a plugging plate; the I-shaped steel is formed by welding a web plate and two wing plates positioned on two sides of the web plate; two side surfaces of the web plate are respectively and closely arranged on the first-stage underground continuous wall section and the second-stage underground continuous wall, and a reinforcement cage of the first-stage underground continuous wall section is respectively welded with the two wing plates of the I-shaped steel; the plugging plate is arranged in a groove of the I-shaped steel close to one side of the second-stage underground continuous wall, and the groove of the plugging plate is arranged facing to a web plate of the I-shaped steel; a plurality of rows of studs are welded at one side of the middle part of the web plate close to the second-stage underground continuous wall;
two groove-shaped clamping pieces are arranged between the plugging plate and the top of the web plate, the groove-shaped clamping pieces are U-shaped steel plates, two round holes are formed in the middles of the groove-shaped clamping pieces, long holes are formed in the wing plates at the positions corresponding to the round holes, and the groove-shaped clamping pieces are fixedly connected with the wing plates through bolts.
2. A studded i-steel joint as claimed in claim 1, wherein: the plugging plate consists of a tank bottom steel plate, a side steel plate, a rib plate, a rubber plate, a top rubber plate, a first top steel plate and a second top steel plate; the bottom steel plate is parallel to the web plate, the side steel plates are parallel to the wing plates and are arranged at a certain distance from the wing plates, and one end of each of the two side steel plates is welded with the bottom steel plate; the second top steel plate is positioned on the top surface of the side steel plate and welded with the side steel plate, and the second top steel plate is perpendicular to the tank bottom steel plate and welded with the tank bottom steel plate; the first top steel plate is positioned at the top of the second top steel plate and is arranged at a certain distance from the second top steel plate, and the first top steel plate is perpendicular to the tank bottom steel plate and is welded with the inner side surface of the tank bottom steel plate; the top rubber plate is clamped between the first top steel plate and the second top steel plate; the two rubber plates are respectively clamped between the two side steel plates and the two wing plates, and the contact surfaces of the rubber plates and the top rubber plate are connected in a vulcanization mode; the inner side of the side steel plate is provided with a plurality of rib plates at intervals in the vertical direction, and the rib plates are respectively welded with the tank bottom steel plate and the side steel plate.
3. A studded i-steel joint according to claim 2, wherein: the thickness of the rubber plate is larger than the distance between the side steel plate and the I-shaped steel wing plate.
4. A studded i-steel joint as claimed in claim 2, wherein: the thickness of one end of the rubber plate close to the steel plate at the bottom of the groove is larger than that of the other end of the rubber plate.
5. A studded i-steel joint according to claim 2, wherein: the rubber plate is connected with the side steel plate through bolts and viscose glue.
6. A studded i-steel joint as claimed in claim 2, wherein: the bottom steel plate is arranged at the bottom of the plugging plate and is positioned close to the first I-shaped steel second-stage continuous wall; the bottom steel plate is respectively welded with the web plate and the wing plate, and the plugging plate and the bottom steel plate are sealed by sealant.
7. The bolted i-steel joint as claimed in claim 6, wherein: and a plurality of nuts are welded on the top surface of the outer side of the bottom steel plate, and corresponding bolts are arranged on the nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710737850.3A CN107700473B (en) | 2017-08-24 | 2017-08-24 | I-steel joint welded with stud |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710737850.3A CN107700473B (en) | 2017-08-24 | 2017-08-24 | I-steel joint welded with stud |
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| CN107700473A CN107700473A (en) | 2018-02-16 |
| CN107700473B true CN107700473B (en) | 2023-03-21 |
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| CN201710737850.3A Active CN107700473B (en) | 2017-08-24 | 2017-08-24 | I-steel joint welded with stud |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109736295B (en) * | 2019-01-15 | 2024-02-27 | 中铁第四勘察设计院集团有限公司 | Vertical supporting system of building structure and construction method thereof |
| CN110055952B (en) * | 2019-03-14 | 2024-06-14 | 宁波市轨道交通集团有限公司 | Underground diaphragm wall joint structure and construction method thereof |
| CN111702921A (en) * | 2020-05-28 | 2020-09-25 | 郑州市雷德水泥制品有限公司 | Cement wire pole production casting mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11209967A (en) * | 1998-01-22 | 1999-08-03 | Shimizu Corp | Joint structure of underground continuous wall |
| JP2003049489A (en) * | 2001-08-07 | 2003-02-21 | Kajima Corp | Joint structure for steel plate concrete structure |
| CN102535519A (en) * | 2012-03-20 | 2012-07-04 | 广州中煤江南基础工程公司 | I-shaped steel joint structure for underground continuous wall and construction method for I-shaped steel joint structure |
| CN204456070U (en) * | 2014-12-24 | 2015-07-08 | 广州机施建设集团有限公司 | Diaphragm wall shutoff stopping means |
| CN207159991U (en) * | 2017-08-24 | 2018-03-30 | 中铁隧道勘测设计院有限公司 | A kind of I-shaped steel joint for being welded with peg |
-
2017
- 2017-08-24 CN CN201710737850.3A patent/CN107700473B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11209967A (en) * | 1998-01-22 | 1999-08-03 | Shimizu Corp | Joint structure of underground continuous wall |
| JP2003049489A (en) * | 2001-08-07 | 2003-02-21 | Kajima Corp | Joint structure for steel plate concrete structure |
| CN102535519A (en) * | 2012-03-20 | 2012-07-04 | 广州中煤江南基础工程公司 | I-shaped steel joint structure for underground continuous wall and construction method for I-shaped steel joint structure |
| CN204456070U (en) * | 2014-12-24 | 2015-07-08 | 广州机施建设集团有限公司 | Diaphragm wall shutoff stopping means |
| CN207159991U (en) * | 2017-08-24 | 2018-03-30 | 中铁隧道勘测设计院有限公司 | A kind of I-shaped steel joint for being welded with peg |
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| CN107700473A (en) | 2018-02-16 |
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