CN212452664U - Conversion transmission type foundation pit profile steel combined supporting system - Google Patents
Conversion transmission type foundation pit profile steel combined supporting system Download PDFInfo
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- CN212452664U CN212452664U CN202020698190.XU CN202020698190U CN212452664U CN 212452664 U CN212452664 U CN 212452664U CN 202020698190 U CN202020698190 U CN 202020698190U CN 212452664 U CN212452664 U CN 212452664U
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Abstract
The utility model discloses a conversion transmission formula foundation ditch shaped steel combination braced system aims at providing one kind and can adapt to the sunken turning structure in the foundation ditch, carries out the support of certain angle to the conversion transmission formula foundation ditch shaped steel combination braced system that bearing structure stability is good. It includes that foundation ditch enclosure pile, setting enclose purlin roof beam and angle at foundation ditch enclosure pile inboard to propping the structure, and the angle is to propping the structure and being located the sunken turning of foundation ditch for support the adjacent both sides at the sunken turning of foundation ditch enclose the axle-rounding roof beam, the angle is to propping the structure and including two outer conversion biography power pieces and to propping the angle between two outer conversion biography power pieces to propping the roof beam, outer conversion biography power piece is triangle-shaped, and an outer conversion biography power piece setting in the angle is to propping the structure is on enclosing the axle-rounding roof beam on one side of the sunken turning of foundation ditch, and another outer conversion biography power piece sets up on enclosing the axle-rounding roof beam on the opposite side at the sunken turning of foundation ditch.
Description
Technical Field
The utility model relates to a foundation ditch supports the field, concretely relates to conversion transmission formula foundation ditch shaped steel combination braced system.
Background
In order to ensure the safety of the underground structure and the surrounding environment of the foundation pit, protective measures such as supporting and reinforcing are required to be adopted on the side wall and the periphery of the foundation pit. Present foundation ditch braced system generally includes foundation ditch fender pile, sets up at the inboard purlin roof beam that encloses of foundation ditch fender pile and to propping the roof beam, wherein, to propping the roof beam and generally adopting directly to the form that props, directly to propping prop on the wall pure roof beam of relative both sides to this strengthens the intensity that the foundation ditch supported, control structure deformation. The existing opposite-bracing beam in the form of direct opposite bracing has simple structure and convenient construction; however, the foundation pit structure is not required to be supported at a certain angle, and in the actual construction process, because the foundation pit structure often has a plurality of sunken corner structures, a pair supporting beam in a straight pair supporting mode cannot be adopted for supporting, and the support at a certain angle is required according to the sunken corner structures. On the other hand, the stability of the supporting structure of the straight opposite supporting is not good.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can adapt to the sunken turning structure in the foundation ditch, carry out the support of certain angle to the good conversion transmission formula foundation ditch shaped steel combination braced system of bearing structure stability.
The technical scheme of the utility model is that:
the utility model provides a conversion transmission formula foundation ditch shaped steel combination braced system, includes foundation ditch fender pile, sets up at the inboard purlin roof beam and the angle of enclosing of foundation ditch fender pile to propping the structure, and the angle is to propping the structure and being located the sunken turning of foundation ditch for the adjacent both sides of the sunken turning of supporting foundation ditch enclose the roof beam well, the angle is to propping the structure and including two outer conversion biography power pieces and to propping the angle between two outer conversion biography power pieces to propping the roof beam, outer conversion biography power piece is triangle-shaped, and an outer conversion biography power piece setting in the angle is to propping the structure is on the enclosing of sunken turning one side of foundation ditch is close to the roof beam well, and another outer conversion biography power piece sets up on the other side of the sunken turning of foundation ditch encloses the roof beam well.
The conversion transmission type foundation pit profile steel combined supporting system has the advantages that the force transmission piece is converted from the outside, so that the supporting structure of the foundation pit profile steel can be flexibly applied to adapt to the sunken corner structure in the foundation pit, and the sunken corner structure in the foundation pit is supported at a certain angle through the angle pair supporting structure, so that the stability of the foundation pit is improved. In another aspect. The angle is to the adjacent both sides of the sunken turning in strut structure and the foundation ditch enclose the axle beam and constitute triangular bearing structure jointly to very big improvement angle is to strut structure and foundation ditch bearing structure stability.
As preferred, still include main to propping the structure, main to propping the structure and lie in between the enclosing axle of the relative both sides of foundation ditch for support the enclosing axle of the relative both sides of foundation ditch, main to propping the structure and include two tip supporting components and lie in the well supporting beam between two tip supporting components, the tip supporting component includes two tip supporting beams, interior transition power transmission piece and two outer transition power transmission pieces that set up on same enclosing axle, interior transition power transmission piece is the triangle-shaped, and same tip supporting component is the triangle-shaped structure, and in the same tip supporting component, outer transition power transmission piece and tip supporting beam one-to-one correspond, and the one end of tip supporting beam supports on the outer transition power transmission piece that corresponds, and the other end of two tip supporting beams supports on same interior transition power transmission piece, well supporting beam is to propping between two tip supporting component's the transition power transmission piece.
The end supporting component of the main diagonal bracing structure is of a triangular structure, so that not only can the stability and the supporting strength of the main diagonal bracing structure be improved; and tip supporting component can carry out support on a relatively large scale enclosing the axle beam to improve foundation ditch bearing structure stability.
Preferably, the bottom edge and the waist edge of the outer conversion force transmission are both formed by I-shaped steel or H-shaped steel, the inner supporting section steel is arranged in the outer conversion force transmission and is connected with the bottom edge and the waist edge of the outer conversion force transmission.
Preferably, the outer force transferring element is in the shape of an isosceles triangle, and the bottom edge of the outer force transferring element is detachably mounted on the enclosing beam through a bolt.
Preferably, the bottom edge of the outer conversion force transmission is connected with the I-shaped steel or H-shaped steel at the waist edge through welding, and the inner supporting section steel is connected with the bottom edge of the outer conversion force transmission and the waist edge through welding.
Preferably, the inner conversion force transmission is in an isosceles triangle shape, the bottom edge and the waist edge of the isosceles triangle shape are both formed by I-shaped steel or H-shaped steel, the inner conversion force transmission is also internally provided with internal support section steel, and the internal support section steel is connected with the bottom edge and the waist edge of the inner conversion force transmission.
Preferably, the enclosing purlin beam is made of profile steel, the external conversion force transmission is connected to the enclosing purlin beam through a connecting bolt, a concave embedded type conversion force transmission structure is arranged between the external conversion force transmission and the enclosing purlin beam, the concave embedded type conversion force transmission structure comprises a force transmission groove formed in the enclosing purlin beam and a force transmission convex piece arranged on the bottom side of the external conversion force transmission, and the force transmission convex piece is embedded in the force transmission groove. So, can pass through the effectual improvement outer conversion biography power of concave formula conversion biography power structure and enclose purlin connection structure's between the roof beam anti-shear capacity and stability to improve foundation ditch bearing structure's stability.
Preferably, two outer wedging blocks are arranged in the force transmission groove, the force transmission convex part comprises two inner wedging blocks, a pre-tightening compression spring positioned between the two inner wedging blocks and a rigid-flexible adjusting type supporting part positioned between the two inner wedging blocks, the two inner wedging blocks are positioned between the two outer wedging blocks, the inner wedging blocks can move along the length direction of the bottom edge of the outer conversion force transmission, the side surface of each outer wedging block facing the inner wedging block is an outer wedging inclined surface, the side surface of each inner wedging block facing the outer wedging blocks is an inner wedging inclined surface, the rigid-flexible adjusting type supporting part comprises a supporting cylinder, a supporting column arranged in the supporting cylinder in a sliding manner, a threaded sleeve and a guide sleeve which are arranged on the outer side surface of the supporting cylinder, a driving screw matched with the threaded sleeve, an adjusting column arranged in the guide sleeve in a sliding manner and a plurality of steel balls filled in the supporting cylinder, the first end of the supporting cylinder is closed, the steel ball is positioned between the first end of the supporting cylinder and the supporting column, the threaded sleeve and the guide sleeve are coaxially distributed, the driving screw is connected with the adjusting column, and the outer diameter of the adjusting column is larger than the outer diameter of the driving screw; when the external conversion force transmission is connected to the purlin surrounding beam through the connecting bolt, the adjusting column is driven to move in the direction away from the supporting cylinder by rotating the driving screw rod, so that steel balls in the supporting cylinder can enter the guide sleeve, the supporting column can move in the supporting cylinder, the distance between the two inner wedging blocks is reduced, and the bottom edge of the external conversion force transmission can abut against the side surface of the purlin surrounding beam; after the outer conversion force transmission is connected to the enclosing purlin beam through the connecting bolt, under the action of a pre-tightening compression spring, an inner wedging inclined plane of the inner wedging block abuts against an outer wedging inclined plane of the outer wedging block, and the outer wedging block abuts against the inner side wall of the force transmission groove; after the outer conversion force is transmitted to the purlin surrounding beam through the connecting bolt, the adjusting column is driven to move towards the supporting cylinder by rotating the driving screw rod, and the steel balls in the supporting cylinder are compressed tightly, so that the supporting column is supported through the steel balls in the supporting cylinder.
Because the force transfer convex piece is inserted into the force transfer groove, a gap is easy to exist, once the force transfer convex piece is inserted into the force transfer groove, the anti-shearing capacity of a connecting structure between the external conversion force transfer and the enclosing purlin beam can be greatly reduced, therefore, the scheme further improves the concave-embedded type conversion force transfer structure, and can ensure that the bottom edge of the external conversion force transfer can abut against the side surface of the enclosing purlin beam when the connecting bolt is used for connecting the external conversion force transfer and the enclosing purlin beam, and the gap between the force transfer convex piece and the force transfer groove is eliminated after the force transfer convex piece is inserted into the force transfer groove; in particular, the method comprises the following steps of,
when the outer conversion force is transmitted and connected to the purlin surrounding beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move in the direction away from the supporting cylinder, so that steel balls in the supporting cylinder can enter the guide sleeve, the supporting column can move in the supporting cylinder, the distance between the two inner wedging blocks is reduced, and the bottom edge of the outer conversion force can abut against the side face of the purlin surrounding beam. After the outer conversion force transmission is connected to the enclosing purlin beam through the connecting bolt, under the action of a pre-tightening compression spring, an inner wedging inclined plane of the inner wedging block abuts against an outer wedging inclined plane of the outer wedging block, and the outer wedging block abuts against the inner side wall of the force transmission groove; after the outer conversion force is transmitted to the purlin surrounding beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move towards the supporting cylinder, the steel balls in the supporting cylinder are compressed, and the supporting column is supported through the steel balls in the supporting cylinder, so that the reliability of a force transmission structure among the outer wedging block, the inner wedging block, the supporting cylinder and the supporting column is guaranteed.
Preferably, the threaded sleeve is positioned above the support cylinder, and the guide sleeve is positioned below the support cylinder.
Preferably, the angle brace beam is composed of a section steel.
The utility model has the advantages that: the support structure can adapt to a sunken corner structure in a foundation pit, support at a certain angle and has the characteristic of good stability of the support structure.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention, which is a structural diagram of a first conversion transmission type foundation pit section steel combined supporting system.
Fig. 2 is a schematic structural view of an external transfer force transfer member according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a transformation transmission type foundation pit section steel combined supporting system according to the second embodiment of the present invention.
Fig. 4 is a partial enlarged view of a portion a of fig. 3.
Fig. 5 is a schematic view of a partial cross-sectional structure at B-B in fig. 4.
In the figure:
a foundation pit fender post 1;
enclosing a purlin beam 2;
the device comprises an angle butt-bracing structure 3, an outer conversion force transmission piece 3.1, an inner supporting section steel 3.11 and an angle butt-bracing beam 3.2;
the main opposite-supporting structure 4 comprises a middle opposite-supporting beam 4.1, an end supporting component 4.2, an end opposite-supporting beam 4.21 and an inner conversion force transfer piece 4.22;
the device comprises a force transmission convex part 5, an inner wedging block 5.1, a rigid-flexible adjusting type supporting part 5.2, a supporting cylinder 5.21, a supporting column 5.22, a steel ball 5.23, a driving screw 5.24, a threaded sleeve 5.25, a guide sleeve 5.26, an adjusting column 5.27, an inner wedging inclined plane 5.3 and a pre-tightening compression spring 5.4;
Detailed Description
To make the objects, technical solutions and advantages of embodiments of the present invention clearer, the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present solution, and are not construed as limiting the present solution.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "a plurality" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The first embodiment is as follows: as shown in fig. 1 and 2, the conversion transmission type foundation pit section steel combined supporting system comprises a foundation pit fender pile 1, a fender purlin beam 2 arranged on the inner side of the foundation pit fender pile, and an angle bracing structure 3. Angle bracing structure 3 is located the sunken turning of foundation ditch for support the enclose axle delay of the adjacent both sides at the sunken turning of foundation ditch. The angle bracing structure 3 comprises two outer conversion force transmission pieces 3.1 and an angle bracing beam 3.2 braced between the two outer conversion force transmission pieces. The outer conversion force transmission piece is triangular. One outer conversion force transmission element in the angle butt-bracing structure is arranged on an enclosing beam at one side of a sunken corner of the foundation pit, and the other outer conversion force transmission element is arranged on an enclosing beam at the other side of the sunken corner of the foundation pit.
The conversion power type foundation pit profile steel combined supporting system of the embodiment enables a supporting structure of foundation pit profile steel to be flexibly applied through an outer conversion power transmission piece so as to adapt to a sunken corner structure in a foundation pit, and supports the sunken corner structure in the foundation pit at a certain angle through an angle pair supporting structure, so that the stability of the foundation pit is improved. In another aspect. The angle is to the adjacent both sides of the sunken turning in strut structure and the foundation ditch enclose the axle beam and constitute triangular bearing structure jointly to very big improvement angle is to strut structure and foundation ditch bearing structure stability.
In this embodiment, enclose the axle beam by shaped steel and form, the angle is to propping the roof beam and is formed by shaped steel. The outer force transferring element is connected with the enclosing beam through a bolt.
Further, as shown in fig. 1 and 2, the conversion transmission type foundation pit section steel combined supporting system further comprises a main support structure 4. Main to propping structure 4 is located between the awe-rounding beams on the two opposite sides of the foundation pit for supporting the awe-rounding beams on the two opposite sides of the foundation pit. The main bracing structure 4 comprises two end support assemblies 4.2 and a middle bracing beam 4.1 located between the two end support assemblies. The end support assembly comprises two end counter-support beams 4.21, an inner transition force transfer member 4.22 and two outer transition force transfer members 3.1 arranged on the same enclosing beam. The inner conversion force transmission piece is triangular. The same end supporting component is in a triangular structure. In the same end supporting component, the outer conversion force transmission parts correspond to the end opposite supporting beams one to one, one ends of the end opposite supporting beams are abutted to the corresponding outer conversion force transmission parts, and the other ends of the two end opposite supporting beams are abutted to the same inner conversion force transmission part. The middle cross brace beam 4.1 is cross brace between the inner conversion force transfer members 4.22 of the two end support assemblies. Because the end supporting components of the main diagonal bracing structure are in a triangular structure, the stability and the supporting strength of the main diagonal bracing structure can be improved; and tip supporting component can carry out support on a relatively large scale enclosing the axle beam to improve foundation ditch bearing structure stability.
In this embodiment, the middle bracing beam is made of section steel, and the end bracing beam is made of section steel.
Further, as shown in fig. 2, the bottom edge and the waist edge of the outer conversion force 3.1 are both made of i-steel or H-steel. The inside of the external conversion force transmission is provided with an internal supporting section steel 3.11 which is connected with the bottom edge and the waist edge of the external conversion force transmission.
The bottom edge of the outer conversion force transmission is connected with the I-shaped steel or H-shaped steel at the waist edge by welding, and the inner supporting section steel is connected with the bottom edge of the outer conversion force transmission and the waist edge by welding.
The outer force transferring part is isosceles triangle, and in this embodiment, the bottom side of the outer force transferring part is detachably mounted on the enclosing beam through a bolt.
Furthermore, the internal conversion force transmission is in an isosceles triangle shape, and the bottom edge and the waist edge of the internal conversion force transmission are both formed by I-shaped steel or H-shaped steel. An internal supporting section steel is also arranged in the internal conversion force transmission part, and the internal supporting section steel is connected with the bottom edge and the waist edge of the internal conversion force transmission part. The bottom edge of the inner conversion force transmission and the I-shaped steel or H-shaped steel on the waist edge are connected by welding, and the inner supporting section steel and the bottom edge and the waist edge of the outer conversion force transmission are connected by welding.
The second embodiment is as follows: the remaining structure of this embodiment refers to the first embodiment, and the difference is that:
as shown in fig. 3, the outer transforming force transfer element is connected to the enclosing purlin beam by a connecting bolt, and specifically, the bottom edge of the outer transforming force transfer element is mounted on the enclosing purlin beam by a bolt. And a concave embedded type conversion force transmission structure is arranged between the external conversion force transmission structure and the enclosing purlin beam. The concave embedded type conversion force transmission structure comprises a force transmission groove arranged on the beam of the enclosing purlin and a force transmission convex part 5 arranged on the bottom edge of the external conversion force transmission. The force transfer convex piece is embedded in the force transfer groove. In this embodiment, the force transfer groove is rectangular. So, can pass through the effectual improvement outer conversion biography power of concave formula conversion biography power structure and enclose purlin connection structure's between the roof beam anti-shear capacity and stability to improve foundation ditch bearing structure's stability.
Further, as shown in fig. 3, 4 and 5, two outer wedge blocks 6 are arranged in the force transmission groove. The force transmission convex piece comprises two inner wedging blocks 5.1, a pre-tightening compression spring 5.4 positioned between the two inner wedging blocks and a rigid-flexible adjusting type supporting piece 5.2 positioned between the two inner wedging blocks. In this embodiment, the two outer wedging blocks are symmetrically distributed, and the two inner wedging blocks are symmetrically distributed. The two inner wedging blocks are located between the two outer wedging blocks and the inner wedging blocks can move along the length direction of the bottom edge of the outer conversion force transmission. The side of the outer wedging block facing the inner wedging block is an outer wedging inclined plane 6.1. The side of the inner wedging block facing the outer wedging block is an inner wedging inclined plane 5.3.
The rigid-flexible adjusting type supporting piece comprises a supporting barrel 5.21, a supporting column 5.22 arranged in the supporting barrel in a sliding mode, a threaded sleeve 5.25 and a guide sleeve 5.26 arranged on the outer side face of the supporting barrel, a driving screw 5.24 matched with the threaded sleeve, an adjusting column 5.27 arranged in the guide sleeve in a sliding mode and a plurality of steel balls 5.23 filled in the supporting barrel. The first end of the supporting cylinder is closed, and the second end of the supporting cylinder is opened. The first end of a supporting cylinder is connected with one of the inner wedge blocks, and one end of the supporting column penetrates through the opening of the second end of the supporting cylinder and is connected with the other inner wedge block. The steel ball is located between the first end of the supporting cylinder and the supporting column. The threaded sleeve and the guide sleeve are positioned between the first end of the support cylinder and the support column. The threaded sleeve and the guide sleeve are coaxially distributed, in the embodiment, the threaded sleeve is positioned above the supporting cylinder, and the guide sleeve is positioned below the supporting cylinder. The driving screw is connected with the adjusting column. In this embodiment, the upper end of the driving screw is provided with a hexagonal head or a quadrangular head for cooperating with a wrench to rotate the driving screw.
When outer conversion biography power passes through connecting bolt and connects on shaped steel encloses the purlin roof beam, through rotating drive screw drives and adjusts the post and remove toward keeping away from a support section of thick bamboo direction, makes the steel ball in the support section of thick bamboo can get into in the uide bushing to make the support column can remove toward a support section of thick bamboo, reduce the interval between the two interior wedge pieces, thereby make the base of outer conversion biography power can tightly lean on the side of shaped steel encloses the purlin roof beam.
After the outer conversion force transmission is connected to the profile steel surrounding purlin beam through the connecting bolt, under the action of the pre-tightening compression spring, the inner wedging inclined plane of the inner wedging block abuts against the outer wedging inclined plane of the outer wedging block, and the outer wedging block abuts against the inner side wall of the force transmission groove.
After the outer conversion force is transmitted and is connected to the profile steel surrounding purlin beam through the connecting bolt, the adjusting column is driven to move towards the supporting cylinder by rotating the driving screw rod, and the steel balls in the supporting cylinder are compressed to support the supporting column through the steel balls in the supporting cylinder.
Because the force transfer convex piece is inserted into the force transfer groove, a gap is easy to exist, once the force transfer convex piece is inserted into the force transfer groove, the anti-shearing capacity of a connecting structure between the external conversion force transfer and the profile steel surrounding purlin beam can be greatly reduced, therefore, the scheme further improves the concave-embedded type conversion force transfer structure, and can ensure that the bottom edge of the external conversion force transfer can be tightly leaned on the side surface of the profile steel surrounding purlin beam when the connecting bolt is used for connecting the external conversion force transfer and the profile steel surrounding purlin beam, and the gap between the force transfer convex piece and the force transfer groove is eliminated after the force transfer convex piece is inserted into the force transfer groove; specifically, when outer conversion biography power passes through connecting bolt and connects on shaped steel encloses the purlin roof beam, through rotating drive screw drives the regulation post and removes toward keeping away from a support section of thick bamboo direction, makes the steel ball in the support section of thick bamboo can get into in the uide bushing to make the support column can remove toward a support section of thick bamboo, reduce the interval between two interior wedging pieces, thereby make the base of outer conversion biography power can tightly lean on the side that the shaped steel encloses the purlin roof beam. After the outer conversion force transmission is connected to the profile steel surrounding purlin beam through the connecting bolt, under the action of a pre-tightening compression spring, an inner wedging inclined plane of the inner wedging block abuts against an outer wedging inclined plane of the outer wedging block, and the outer wedging block abuts against the inner side wall of the force transmission groove; after the outer conversion force is transmitted and is connected to the profile steel surrounding purlin beam through the connecting bolt, the driving screw rod is rotated to drive the adjusting column to move towards the supporting cylinder, the steel balls in the supporting cylinder are compressed, and the supporting column is supported through the steel balls in the supporting cylinder, so that the reliability of a force transmission structure among the outer wedging block, the inner wedging block, the supporting cylinder and the supporting column is guaranteed.
The outer diameter of the adjusting column is larger than that of the driving screw, and in the embodiment, the outer diameter of the adjusting column is 3 times of that of the driving screw.
The pre-tightening compression spring is sleeved on the supporting cylinder.
The inner wedging block is provided with a strip-shaped hole, and the length direction of the strip-shaped hole is parallel to the length direction of the bottom edge of the outer conversion force transmission. And bottom edge bolts which are in one-to-one correspondence with the inner wedging blocks are arranged on the bottom edge of the outer conversion force transmission. The bottom side bolt penetrates through the corresponding strip-shaped hole on the inner wedging block, so that the inner wedging block can move along the length direction of the bottom side of the outer conversion force transmission.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent transformation of doing above embodiment the utility model discloses technical scheme's protection scope.
Claims (10)
1. The utility model provides a conversion transmission formula foundation ditch shaped steel combination braced system, includes foundation ditch enclosure pile and sets up at the inboard purlin roof beam that encloses of foundation ditch enclosure pile, characterized by, including angle to bracing structure, angle to bracing structure is located the sunken turning of foundation ditch, is used for supporting the adjacent both sides at the sunken turning of foundation ditch encloses the heavy roof beam, angle to bracing structure includes two outer conversion biography power pieces and supports the angle between two outer conversion biography power pieces and supports the roof beam, outer conversion biography power piece is triangle-shaped, and an outer conversion biography power piece setting in angle to bracing structure is on enclosing the heavy roof beam on one side of the sunken turning of foundation ditch, and another outer conversion biography power piece sets up on the other side of the sunken turning of foundation ditch encloses the heavy roof beam.
2. The foundation pit steel combination supporting system of claim 1, further comprising a main counter-support structure, wherein the main counter-support structure is located between the centering beams at two opposite sides of the foundation pit for supporting the centering beams at the two opposite sides of the foundation pit, the main counter-support structure comprises two end support assemblies and a middle counter-support beam located between the two end support assemblies, the end support assemblies comprise two end counter-support beams, an inner conversion force transmission member and two outer conversion force transmission members arranged on the same centering beam, the inner conversion force transmission member is triangular, the same end support assembly is triangular, the outer conversion force transmission members are in one-to-one correspondence with the end counter-support beams in the same end support assembly, one end of the end counter-support beam abuts against the corresponding outer conversion force transmission member, and the other end of the two end counter-support beams abuts against the same inner conversion force transmission member, the middle opposite supporting beam is oppositely supported between the inner conversion force transmission pieces of the two end supporting components.
3. The foundation pit type steel combined supporting system of claim 1 or 2, wherein the bottom edge and the waist edge of the outer conversion force transmission piece are both made of I-shaped steel or H-shaped steel, an inner supporting type steel is arranged in the outer conversion force transmission piece, and the inner supporting type steel is connected with the bottom edge and the waist edge of the outer conversion force transmission piece.
4. The foundation pit type steel combination supporting system of claim 3, wherein the outer transforming force transmitting member is isosceles triangle, and the bottom edge of the outer transforming force transmitting member is detachably mounted on the enclosing beam through a bolt.
5. The foundation pit type steel combined supporting system for the force conversion and transmission type according to claim 3, wherein the bottom edge of the outer force conversion and transmission piece and the I-shaped steel or the H-shaped steel at the waist edge are connected through welding, and the inner supporting type steel and the bottom edge of the outer force conversion and transmission piece and the waist edge are connected through welding.
6. The foundation pit sectional steel combined supporting system of claim 2, wherein the inner conversion force transmission member is in an isosceles triangle shape, the bottom edge and the waist edge of the inner conversion force transmission member are both made of I-shaped steel or H-shaped steel, an inner supporting sectional steel is also arranged in the inner conversion force transmission member, and the inner supporting sectional steel is connected with the bottom edge and the waist edge of the inner conversion force transmission member.
7. The foundation pit profile steel combined supporting system of claim 1 or 2, wherein the enclosing purlin beam is made of profile steel, the outer conversion force transmission piece is connected to the enclosing purlin beam through a connecting bolt, a concave embedded type conversion force transmission structure is arranged between the outer conversion force transmission piece and the enclosing purlin beam, the concave embedded type conversion force transmission structure comprises a force transmission groove formed in the enclosing purlin beam and a force transmission convex piece arranged on the bottom edge of the outer conversion force transmission piece, and the force transmission convex piece is embedded in the force transmission groove.
8. The foundation pit type steel combined supporting system for the conversion power transmission type as claimed in claim 7, wherein two outer wedging blocks are arranged in the power transmission groove,
the force transmission convex part comprises two inner wedging blocks, a pre-tightening compression spring positioned between the two inner wedging blocks and a rigid-flexible adjusting type supporting piece positioned between the two inner wedging blocks, the two inner wedging blocks are positioned between the two outer wedging blocks, the inner wedging blocks can move along the length direction of the bottom edge of the outer conversion force transmission piece, the side surface of each outer wedging block facing the inner wedging block is an outer wedging inclined surface, the side surface of each inner wedging block facing the outer wedging blocks is an inner wedging inclined surface,
the rigid-flexible adjusting type supporting piece comprises a supporting cylinder, a supporting column arranged in the supporting cylinder in a sliding manner, a threaded sleeve and a guide sleeve which are arranged on the outer side surface of the supporting cylinder, a driving screw rod matched with the threaded sleeve, an adjusting column arranged in the guide sleeve in a sliding manner and a plurality of steel balls filled in the supporting cylinder,
the first end of a supporting cylinder is sealed, the second end opening of a supporting cylinder, the first end of a supporting cylinder is connected with one of the inner wedging blocks, one end of the supporting column penetrates through the second end opening of the supporting cylinder and is connected with the other inner wedging block, the steel ball is located between the first end of the supporting cylinder and the supporting column, the threaded sleeve and the guide sleeve are distributed coaxially, the driving screw is connected with the adjusting column, and the outer diameter of the adjusting column is larger than the outer diameter of the driving screw.
9. The foundation pit type steel combined supporting system of claim 8, wherein the threaded sleeve is positioned above the supporting cylinder, and the guide sleeve is positioned below the supporting cylinder.
10. The foundation pit steel combined supporting system for the conversion transmission type according to claim 1 or 2, wherein the angle pair supporting beam is composed of steel sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020698190.XU CN212452664U (en) | 2020-04-29 | 2020-04-29 | Conversion transmission type foundation pit profile steel combined supporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020698190.XU CN212452664U (en) | 2020-04-29 | 2020-04-29 | Conversion transmission type foundation pit profile steel combined supporting system |
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