CN201546227U - Steel support beam for supporting foundation pit bracing piling wall and basement structure outer wall - Google Patents

Steel support beam for supporting foundation pit bracing piling wall and basement structure outer wall Download PDF

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Publication number
CN201546227U
CN201546227U CN200920199791XU CN200920199791U CN201546227U CN 201546227 U CN201546227 U CN 201546227U CN 200920199791X U CN200920199791X U CN 200920199791XU CN 200920199791 U CN200920199791 U CN 200920199791U CN 201546227 U CN201546227 U CN 201546227U
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China
Prior art keywords
wall
basement structure
steel
exterior wall
structure exterior
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Expired - Fee Related
Application number
CN200920199791XU
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Chinese (zh)
Inventor
胡名凯
华锦耀
陈勇
余永顺
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HUAFENG CONSTRUCTION CO Ltd
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HUAFENG CONSTRUCTION CO Ltd
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Priority to CN200920199791XU priority Critical patent/CN201546227U/en
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Anticipated expiration legal-status Critical
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Abstract

The utility model discloses a steel support beam for supporting a foundation pit bracing piling wall and a basement structure outer wall. The steel support beam is in the form of assemblies. Each assembly comprises a long steel pipe support replacement beam (1), two short steel pipe support replacement beams (2) and two embedded parts (3). One end of the long steel pipe support replacement beam (1) is connected to one inner side surface of the wall body of a basement structure outer wall (4), the other end is pressed against the other inner side surface of the wall body of the basement structure outer wall (4), and both embedded parts (3) are embedded on the outer side surfaces of the wall body of the basement structure outer wall (4). One end of each short steel pipe support replacement beam (2) is connected to the embedded parts (3), and the other end is connected to the bracing pile of a foundation pit bracing piling wall (5). The long steel pipe support replacement beam (1) and the two short steel pipe support replacement beams (2) are in the same line. The steel support beam can prevent steel supports from being cast in the wall body of the basement structure outer wall.

Description

Be used to support the steel brace summer of bracing of foundation pit piling wall and basement structure exterior wall
Technical field
The utility model relates to the construction installation in a kind of civil engineering, specifically be a kind of particularly support beam of the foundation ditch of super dark (degree of depth surpass 5m), super narrow the width of narrow place (be no more than 5m) of construction space anxiety of foundation ditch that is applicable to, in particular for supporting the steel brace summer of bracing of foundation pit piling wall and (foundation ditch) basement structure exterior wall.
Background technology
Along with expanding economy, it is nervous that land resources is tending towards.Civil construction project particularly in the city civil construction project in bustling location begin to utilize on a large scale the underground space.At present, China's building structure is some commercial building structures and civic building structure particularly, generally has one deck or two layers of basement.The building structure that some is large-scale even comprise three layers, four layers basement, the cutting depth of its foundation ditch is all above 5m, even reaches below the 16m.Simultaneously, along with the development of track traffic in recent years, the excavation of subway station foundation ditch is also more and more general, and the cutting depth of subway station foundation ditch generally surpasses 20m.Therefore, the range of application of super dark super narrow foundation ditch is very extensive.
The construction sequence of traditional super dark super narrow foundation ditch is as follows:
1, beats some fender posts close to each other in the precalculated position and make it to constitute the bracing of foundation pit piling wall, and build the capping beam that connects each fender post stake top, between capping beam, build simultaneously with the first floor concrete of capping beam and support with absolute altitude;
2, digging foundation ditch down to certain absolute altitude, build the purlin that encloses of this absolute altitude in the fender post inboard, enclose the steel of establishing this absolute altitude between the purlin in difference again and support, generally is steel to be supported two ends be welded on the built-in fitting that encloses purlin;
3, repeating step 2 repeatedly, until under dig to the end, hole;
4, lay bed course at the end, hole, build base plate then on bed course, and build the basement structure exterior wall of certain altitude such as the above 2.5m of base plate absolute altitude simultaneously, the basement structure exterior wall is positioned at bracing of foundation pit piling wall inboard, and has the slit between the two;
5, continue upwards to build the basement structure exterior wall, reach design elevation until the end face absolute altitude of basement structure exterior wall, as with the height of ground level;
6, after underground cell structure exterior wall intensity reaches designing requirement fully, support along cutting of basement structure exterior wall both sides and dismounting steel, and with basement structure exterior wall both sides laying waterproofing course, and use the coating levelling, tamp the slit between basement structure exterior wall and the bracing of foundation pit piling wall then.
Because the steel of above prior art is supported for the two ends of integral body and every steel support and pushes against on the medial surface of two bracing of foundation pit piling walls, so when building the basement structure exterior wall, every layer steel supports and can't avoid being poured in the basement structure outer wall body, has so just produced following a series of problems:
1, the template of building the basement structure exterior wall must be reserved for every layer of steel and support the through hole that passes, and the bearing bar of basement structure exterior wall must be walked around every layer of steel and support, so it is big to build the difficulty of construction of this step of basement structure exterior wall;
2, support along cutting of basement structure exterior wall both sides and dismounting steel, the difficulty of these construction sequences own is bigger, long construction period;
Though 3 have taked basement structure exterior wall both sides are laid the measure of waterproofing course, the steel support and the body of wall that remain in after all in the basement structure outer wall body are not one, and its waterproof effect is undesirable;
4, because a plurality of absolute altitudes are provided with the steel support, and every steel support all can some remain in the body of wall, and this has just caused very big waste, makes that the foundation pit construction cost is higher.
The utility model content
The technical problems to be solved in the utility model is that a kind of steel brace summer that is used to support bracing of foundation pit piling wall and basement structure exterior wall that can avoid steel to support and be poured in the basement structure outer wall body is provided.
Technical solution of the present utility model is, a kind of steel brace summer that is used to support bracing of foundation pit piling wall and basement structure exterior wall is provided, it exists with kit form, and each assembly comprises a steel pipe support replacement Chang Liang, two steel support replacement short beams and two built-in fittings; One end of the long beam of described steel pipe support replacement is connected on the medial surface of a basement structure outer wall body, and the other end pushes against on the medial surface of another basement structure outer wall body, and each built-in fitting is embedded on the lateral surface of basement structure outer wall body; One end of every steel support replacement short beam is connected on the built-in fitting, and the other end is connected on the fender post of bracing of foundation pit piling wall; A described steel pipe support replacement Chang Liang and two steel support replacement short beams are located along the same line.
When people construct to super dark super narrow foundation ditch, when proceeding to step 4 according to traditional construction sequence, the basement structure exterior wall is built to design elevation no longer from the bottom up always, but earlier the basement structure exterior wall is built to a highly minimum steel support below, steel brace summer of the present utility model is installed then to support bracing of foundation pit piling wall and basement structure exterior wall, the steel of pulling down this height again supports, and continues upwards to build the basement structure exterior wall then; Support the below until the steel that arrives a last height, and then support, and upwards continue to build the basement structure exterior wall with the steel of the alternative last height of another root steel brace summer, reciprocal with this, reach design elevation until basement structure exterior wall end face absolute altitude.After reaching designing requirement fully Deng basement structure exterior wall concrete strength, remove the utility model steel brace summer again.
After adopting above structure, the steel brace summer that the utility model is used to support bracing of foundation pit piling wall and basement structure exterior wall compared with prior art has the following advantages:
Because it is that segmentation pushes against between basement structure exterior wall and the bracing of foundation pit piling wall and between basement structure exterior wall and the basement structure exterior wall that the utility model is used to support the steel brace summer of bracing of foundation pit piling wall and basement structure exterior wall, so in the foundation pit construction process, having avoided steel to support fully is poured in the basement structure outer wall body, and then avoided consequent a series of problem, so reduced basement structure external wall construction difficulty; Omit the construction sequence that supports along basement structure exterior wall both sides cutting steel, reduced the foundation pit construction difficulty, shortened the foundation pit construction cycle; Guaranteed the waterproof effect of body of wall; Save the steel that originally remains in the body of wall and supported, avoided waste, reduced construction cost.
As improvement, one end of the long beam of described steel pipe support replacement is removable to be connected on the medial surface of a basement structure outer wall body, the other end is equipped with active head, this end of the long beam of described steel pipe support replacement pushes against on the medial surface of another basement structure outer wall body by active head, like this, after the intensity of the basement structure outer wall body of this absolute altitude reaches designing requirement, can disassemble the long beam of this steel pipe support replacement very easily, make the long beam of this this steel pipe support replacement to recycle, save material, further reduced cost.
As improving, described steel support replacement short beam comprises an i iron and is welded on two end boards at i iron two ends again, and an end board is provided with through hole, and this piece end board is connected by the bolt that passes through hole and be tightened in the screwed hole of built-in fitting; Another piece end board is provided with the self-tapping screw hole, the self-tapping screw that this piece end board is passed the self-tapping screw hole is connected on the fender post of bracing of foundation pit piling wall, like this, after the intensity of the basement structure outer wall body of this absolute altitude reaches designing requirement, can disassemble this steel support replacement short beam very easily, make this steel support replacement short beam to recycle, saved material, further reduced cost.
As further improvement, the length of described i iron slightly is shorter than the distance between the lateral surface of the medial surface of bracing of foundation pit piling wall and basement structure exterior wall, be provided with infill panel between the end board that leans on the basement structure exterior wall of described steel support replacement short beam and the built-in fitting end plate, like this, people can select for use the infill panel of different-thickness to tamp the end board of steel support replacement short beam and the slit between the built-in fitting end plate, guarantee that steel support replacement short beam two ends push against on basement structure exterior wall lateral surface and bracing of foundation pit piling wall medial surface.
Description of drawings
Fig. 1 is the application schematic diagram of steel brace summer when foundation pit construction that the utility model is used to support bracing of foundation pit piling wall and basement structure exterior wall.
Fig. 2 is the partial elevational structural representation that the utility model is used to support the steel brace summer of bracing of foundation pit piling wall and basement structure exterior wall.
Fig. 3 is the positive TV structure enlarged diagram of an end board of the utility model steel brace summer of being used to support bracing of foundation pit piling wall and basement structure exterior wall.
Fig. 4 is the positive TV structure enlarged diagram of the other end board of the utility model steel brace summer of being used to support bracing of foundation pit piling wall and basement structure exterior wall.
Fig. 5 is the side-looking structural representation of the built-in fitting of the utility model steel brace summer of being used to support bracing of foundation pit piling wall and basement structure exterior wall.
Shown in the figure 1, the long beam of steel pipe support replacement, 2, steel support replacement short beam, 3, built-in fitting, 4, basement structure exterior wall, 5, the bracing of foundation pit piling wall, 6, active head, 7, end plate, 8, horizontal steel bar, 9, screwed hole, 10, i iron, 11, end board, 12, self-tapping screw, 13, infill panel, 14, self-tapping screw hole, 15, through hole.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model is used to support the steel brace summer of bracing of foundation pit piling wall and basement structure exterior wall, it exists with kit form, and each assembly comprises the long beam of steel pipe support replacement 1, two steel support replacement short beams 2 and two built-in fittings 3.
One end of the long beam 1 of described steel pipe support replacement is connected on the medial surface of a basement structure exterior wall 4 bodies of wall, the other end pushes against on the medial surface of another basement structure exterior wall 4 bodies of wall, the removable connection of an end (as being spirally connected) that is the long beam 1 of described steel pipe support replacement is on the medial surface of a basement structure exterior wall 4 bodies of wall, the other end is equipped with active 6 (adopting interior known commercially available active 6 of building trade), and this end of the long beam 1 of described steel pipe support replacement pushes against on the medial surface of another basement structure exterior wall 4 bodies of wall by active 6.
Each built-in fitting 3 is embedded on the lateral surface of basement structure exterior wall 4 bodies of wall, be that described built-in fitting 3 comprises a vertical end plate 7 and some horizontal steel bars 8, described end plate 7 is provided with screwed hole 9, one end of described horizontal steel bar 8 is welded on an end face of end plate 7, reinforcing bar welding in the other end of described horizontal steel bar 8 and basement structure exterior wall 4 bodies of wall, described horizontal steel bar 8 and end plate 7 all are anchored in basement structure exterior wall 4 bodies of wall, and the outer face of described end plate 7 exposes on the lateral surface of basement structure exterior wall 4 bodies of wall.One end of every steel support replacement short beam 2 is connected on the built-in fitting 3, the other end is connected on the fender post of bracing of foundation pit piling wall 5, be that described steel support replacement short beam 2 comprises an i iron 10 and two end boards 11 that are welded on i iron 10 two ends, an end board 11 is provided with through hole 15, and this piece end board 11 is connected by the bolts that pass through hole 15 and be tightened in the screwed hole 9 of built-in fitting 3; Another piece end board 11 is provided with self-tapping screw hole 14, and the self-tapping screw 12 that this piece end board 11 is passed self-tapping screw hole 14 is connected on the fender post of bracing of foundation pit piling wall 5.
The long beam 1 of a described steel pipe support replacement and two steel support replacement short beams 2 are located along the same line, and specifically, the center line of the axis of a long beam 1 of steel pipe support replacement and two steel support replacement short beam 2 width and thickness direction is located along the same line.
The length of described i iron 10 slightly is shorter than the distance between the lateral surface of the medial surface of bracing of foundation pit piling wall 5 and basement structure exterior wall 4, described steel support replacement short beam 2 by being provided with infill panel 13 between the end board 11 of basement structure exterior wall 4 and built-in fitting 3 end plates 7.

Claims (5)

1. steel brace summer that is used to support bracing of foundation pit piling wall and basement structure exterior wall, it is characterized in that: it exists with kit form, and each assembly comprises a long beam of steel pipe support replacement (1), two steel support replacement short beams (2) and two built-in fittings (3); One end of the long beam of described steel pipe support replacement (1) is connected on the medial surface of basement structure exterior wall (a 4) body of wall, the other end pushes against on the medial surface of another basement structure exterior wall (4) body of wall, and each built-in fitting (3) is embedded on the lateral surface of basement structure exterior wall (4) body of wall; One end of every steel support replacement short beam (2) is connected on the built-in fitting (3), and the other end is connected on the fender post of bracing of foundation pit piling wall (5); A described long beam of steel pipe support replacement (1) and two steel support replacement short beams (2) are located along the same line.
2. the steel brace summer that is used to support bracing of foundation pit piling wall and basement structure exterior wall according to claim 1, it is characterized in that: an end of the long beam of described steel pipe support replacement (1) is removable to be connected on the medial surface of basement structure exterior wall (a 4) body of wall, the other end is equipped with active head (6), and this end of the long beam of described steel pipe support replacement (1) pushes against on the medial surface of another basement structure exterior wall (4) body of wall by active head (6).
3. the steel brace summer that is used to support bracing of foundation pit piling wall and basement structure exterior wall according to claim 1, it is characterized in that: described built-in fitting (3) comprises a vertical end plate (7) and some horizontal steel bars (8), described end plate (7) is provided with screwed hole (9), one end of described horizontal steel bar (8) is welded on an end face of end plate (7), reinforcing bar welding in the other end of described horizontal steel bar (8) and basement structure exterior wall (4) body of wall, described horizontal steel bar (8) and end plate (7) all are anchored in basement structure exterior wall (4) body of wall, and the outer face of described end plate (7) exposes on the lateral surface of basement structure exterior wall (4) body of wall.
4. the steel brace summer that is used to support bracing of foundation pit piling wall and basement structure exterior wall according to claim 3, it is characterized in that: described steel support replacement short beam (2) comprises an i iron (10) and is welded on two end boards (11) at i iron (10) two ends, an end board (11) is provided with through hole (15), and this piece end board (11) is connected by the bolt that passes through hole (15) and be tightened in the screwed hole (9) of built-in fitting (3); Another piece end board (11) is provided with self-tapping screw hole (14), and the self-tapping screw (12) that this piece end board (11) is passed self-tapping screw hole (14) is connected on the fender post of bracing of foundation pit piling wall (5).
5. the steel brace summer that is used to support bracing of foundation pit piling wall and basement structure exterior wall according to claim 4, it is characterized in that: the length of described i iron (10) slightly is shorter than the distance between the lateral surface of the medial surface of bracing of foundation pit piling wall (5) and basement structure exterior wall (4), described steel support replacement short beam (2) by being provided with infill panel (13) between the end board (11) of basement structure exterior wall (4) and built-in fitting (3) end plate (7).
CN200920199791XU 2009-10-31 2009-10-31 Steel support beam for supporting foundation pit bracing piling wall and basement structure outer wall Expired - Fee Related CN201546227U (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116027A (en) * 2010-12-17 2011-07-06 上海市第四建筑有限公司 Frame type combined support-replacing system and construction method thereof
CN102587412A (en) * 2012-02-13 2012-07-18 中天建设集团有限公司 Stage construction basement support change method using underground continuous wall as separation containment
CN105586975A (en) * 2016-02-29 2016-05-18 济南轨道交通集团有限公司 Integrated construction method for overlapping prefabricated guard post and structural wall
CN106499199A (en) * 2016-12-14 2017-03-15 上海建工二建集团有限公司 Close on the interim support replacement of subway ultra-deep foundation pit mid-board and its construction method
CN107288137A (en) * 2017-08-21 2017-10-24 中建八局浙江建设有限公司 Detachable support replacement device and its construction method
CN109837908A (en) * 2019-02-19 2019-06-04 中国建筑第八工程局有限公司 Foundation ditch construction method
CN111441363A (en) * 2020-04-13 2020-07-24 河北建设勘察研究院有限公司 Synchronous support changing method for inner supports

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116027A (en) * 2010-12-17 2011-07-06 上海市第四建筑有限公司 Frame type combined support-replacing system and construction method thereof
CN102587412A (en) * 2012-02-13 2012-07-18 中天建设集团有限公司 Stage construction basement support change method using underground continuous wall as separation containment
CN102587412B (en) * 2012-02-13 2014-06-11 中天建设集团有限公司 Stage construction basement support change method using underground continuous wall as separation containment
CN105586975A (en) * 2016-02-29 2016-05-18 济南轨道交通集团有限公司 Integrated construction method for overlapping prefabricated guard post and structural wall
CN105586975B (en) * 2016-02-29 2017-12-19 济南轨道交通集团有限公司 The integrated structure and construction method that prefabricated fender post is superimposed with structural wall
CN106499199A (en) * 2016-12-14 2017-03-15 上海建工二建集团有限公司 Close on the interim support replacement of subway ultra-deep foundation pit mid-board and its construction method
CN107288137A (en) * 2017-08-21 2017-10-24 中建八局浙江建设有限公司 Detachable support replacement device and its construction method
CN107288137B (en) * 2017-08-21 2019-05-17 中建八局浙江建设有限公司 Detachable support replacement device and its construction method
CN109837908A (en) * 2019-02-19 2019-06-04 中国建筑第八工程局有限公司 Foundation ditch construction method
CN109837908B (en) * 2019-02-19 2021-08-17 中国建筑第八工程局有限公司 Foundation pit construction method
CN111441363A (en) * 2020-04-13 2020-07-24 河北建设勘察研究院有限公司 Synchronous support changing method for inner supports

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