CN115142469B - Connection method and structure of horizontal stress component and top ring beam - Google Patents
Connection method and structure of horizontal stress component and top ring beam Download PDFInfo
- Publication number
- CN115142469B CN115142469B CN202210823246.3A CN202210823246A CN115142469B CN 115142469 B CN115142469 B CN 115142469B CN 202210823246 A CN202210823246 A CN 202210823246A CN 115142469 B CN115142469 B CN 115142469B
- Authority
- CN
- China
- Prior art keywords
- top ring
- ring beam
- bars
- horizontal
- reinforcing bars
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a method and a structure for connecting a horizontal stress component and a top ring beam, wherein the method comprises the steps of roughening the top ring beam, anchoring a reinforcement cage of a force transfer block on the top ring beam, implanting a main rib of the horizontal force transfer component on the reinforcement cage, setting up a template casting concrete on the reinforcement cage to form the force transfer block of a reinforced concrete structure, and anchoring the main rib of the horizontal force transfer component on the force transfer block of the reinforced concrete structure through the casting concrete so as to arrange the horizontal force transfer component on the top ring beam through the force transfer block. The invention solves the problems of effective force transmission and connection of the horizontal force-bearing component and the top ring beam under the condition of not dismantling the reconstructed top ring beam.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a method and a structure for connecting a horizontal stress component and a top ring beam.
Background
Along with the continuous enhancement of underground space development demand, deep and large foundation pit is also more and more, there is the operating mode of more and more pit-dividing construction according to surrounding environment and time limit for a project requirement, the top ring roof beam of the common wall (intermediate wall) of adjacent foundation pit often need be after a foundation pit is accomplished, demolish again and construct the top ring roof beam and realize sharing, but the former repeated construction, waste resource and time limit for a project, the latter is high to pre-buried precision requirement, often can't realize sharing, need demolish again or after plant the muscle, however the top ring roof beam is the side direction atress component, the side direction reinforcing bar diameter is big and the reinforcing bar clear distance is little, the foundation pit level is to the intensive reinforcing bar of major diameter of atress component adoption equally, and the diameter degree of depth of major diameter reinforcing bar is dark, direct planting muscle is difficult, the quality and the safety of structure are difficult to guarantee. Therefore, how to avoid the above-mentioned problems and realize the connection between the horizontal force-bearing member and the top ring beam is a technical problem in the art that needs to be solved.
Disclosure of Invention
The invention aims to provide a connecting method and a structure of a horizontal stress member and a top ring beam, which are used for solving the problems of repeated construction, resource waste and construction delay caused by dismantling and rebuilding the top ring beam and the problem that large-diameter dense steel bars of the horizontal stress member are difficult to connect with large-diameter steel bars of the top ring beam.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a method of connecting a horizontal force-bearing member to a top ring beam, comprising:
and (3) roughening the top ring beam: roughening the side wall of the top ring beam positioned at one side of the rear excavated foundation pit to expose the reinforcing steel bars of the top ring beam;
constructing a reinforcement cage of a force transfer block on the top ring beam: the side wall of the top ring beam subjected to roughening treatment is transversely implanted with a plurality of first direction reinforcing bars in the top ring beam along the height direction of the top ring beam, a plurality of second direction reinforcing bars which are distributed at intervals are vertically and alternately bound on all the first direction reinforcing bars positioned outside the top ring beam, and drag hook ribs are arranged between the second direction reinforcing bars to form a reinforcing cage of a force transmission block; the diameters of the first direction reinforcing bars are respectively smaller than the diameters of the reinforcing bars of the top ring beam and the diameters of the main bars of the horizontal stress members, the first direction reinforcing bars and the second direction reinforcing bars are distributed in the horizontal direction, and the drag hook bars are distributed in the vertical direction;
the main bars of the horizontal force transfer components are implanted on the reinforcement cage: implanting a main rib of a horizontal force transfer component on the reinforcement cage at one side of the rear excavated foundation pit;
pouring concrete: setting up a template on the reinforcement cage to pour concrete to form a force transfer block of the reinforced concrete structure, and anchoring and arranging a main rib of the horizontal force transfer member on the force transfer block of the reinforced concrete structure through the poured concrete so as to arrange the horizontal force transfer member on the top ring beam through the force transfer block.
Further, according to the connecting method of the horizontal stress member and the top ring beam, the first direction reinforcing steel bars which are arranged in parallel with the first direction reinforcing steel bars after being bent in the top ring beam are longitudinally implanted downwards in the upper surface of the top ring beam, the second direction reinforcing steel bars which are positioned above are bound on the first direction reinforcing steel bars to form a reinforcement cage of a force transmission block higher than the top ring beam, the main steel bars which are positioned above in the horizontal force transmission member are implanted in the reinforcement cage higher than the upper surface of the top ring beam, and concrete is poured on the reinforcement cage to form the force transmission block of a reinforced concrete structure higher than the top ring beam on the side wall of the top ring beam which is positioned at one side of a rear excavation foundation pit and the upper surface of the top ring beam.
In addition, according to the connecting method of the horizontal stress component and the top ring beam, before concrete is poured, the stress gauge is arranged on the reinforcement cage and is connected with the controller.
Further, according to the connecting method of the horizontal stress component and the top ring beam, the first reinforcing steel bars implanted into the top ring beam are connected with the reinforcing steel bars exposed out of the top ring beam after roughening treatment.
In order to solve the technical problems, the invention provides another technical scheme as follows: a connection structure of a horizontal force-bearing member and a top ring beam, comprising:
the force transmission belt comprises a plurality of force transmission blocks which are positioned at one side of a rear excavated foundation pit and are continuously or intermittently anchored on a top ring beam, each force transmission block is of a reinforced concrete structure, and the reinforced concrete structure comprises a reinforcement cage anchored on the top ring beam and concrete poured on the reinforcement cage;
and the horizontal force transfer component is arranged on the force transfer block in an anchoring manner at one side of the rear excavation foundation pit.
Further, the steel reinforcement cage comprises a plurality of first direction steel reinforcements which are transversely implanted into the top ring beam along the height direction of the top ring beam through the side wall of the top ring beam subjected to roughening treatment, a plurality of second direction steel reinforcements which are distributed at intervals are vertically and crossly bound on all the first direction steel reinforcements outside the top ring beam, and drag hook ribs arranged between the second direction steel reinforcements to form the steel reinforcement cage which is not higher than the top ring beam; the diameters of the first direction reinforcing bars are respectively smaller than the diameter of the reinforcing bars of the top ring beam and the diameter of the main bars of the horizontal force-bearing member, the first direction reinforcing bars and the second direction reinforcing bars are distributed in the horizontal direction, and the drag hook bars are distributed in the vertical direction.
Further, the connecting structure of the horizontal stress member and the top ring beam provided by the invention comprises a plurality of first direction reinforcing bars which are transversely implanted into the top ring beam along the height direction of the top ring beam through roughening treatment, wherein the upper surface of the top ring beam is longitudinally implanted downwards with first direction reinforcing bars which are arranged in parallel with the first direction reinforcing bars after being bent in the top ring beam, the periphery of a frame formed by the first direction reinforcing bars and the first direction reinforcing bars which are positioned outside the top ring beam is vertically crossed and bound with a plurality of second direction reinforcing bars which are distributed at intervals, and drag hook ribs are arranged between the second direction reinforcing bars to form the reinforcing bar cage which is higher than the top ring beam; the diameters of the first direction reinforcing bars are respectively smaller than the diameters of the reinforcing bars of the top ring beam and the diameters of the main bars of the horizontal stress members, the first direction reinforcing bars and the second direction reinforcing bars are distributed in the horizontal direction, and the drag hook bars are distributed in the vertical direction; and the main rib positioned above the horizontal force transfer component is implanted and arranged in the reinforcement cage above the upper surface of the top ring beam.
Furthermore, in the connecting structure of the horizontal stress member and the top ring beam, the stress meter is embedded in the force transmission block, and the stress meter is connected with the controller.
Further, the connecting structure of the horizontal stress member and the top ring beam provided by the invention comprises the U-shaped steel bar positioned in the middle and the double L-shaped steel bars which are mutually anchored above and below the U-shaped steel bar.
Further, according to the connecting structure of the horizontal stress member and the top ring beam, the first direction reinforcing steel bar comprises the U-shaped reinforcing steel bar positioned in the middle and the L-shaped reinforcing steel bar arranged below the U-shaped reinforcing steel bar, and the first direction reinforcing steel bar and the L-shaped reinforcing steel bar are mutually anchored.
Compared with the prior art, the invention has the following beneficial effects:
according to the connecting method and structure of the horizontal stress component and the top ring beam, the force transfer block is anchored on the top ring beam, and the main rib of the horizontal stress component is anchored on the force transfer block, so that the horizontal stress component is arranged on the top ring beam through the force transfer block, the condition that the top ring beam on the common middle wall of the foundation pit and the adjacent foundation pit after which the foundation pit is excavated is removed and re-constructed can be avoided, the problem that the top ring beam is connected under the condition that the original reserved measure cannot be used is solved, the problem that the reinforcing steel bar of the horizontal stress component of the traditional foundation pit is directly planted to the top ring beam is solved, and the problem of structural reliability is solved, so that the structural connection is safe and reliable.
According to the connecting method and structure of the horizontal stressed member and the top ring beam, the top ring beam structure can be effectively utilized under the condition that the top ring beam is reserved but cannot be used, and the problems that the diameter and dense distribution of the steel bars of the top ring beam cannot be anchored with the horizontal stressed member planting bars with large diameter, direct anchoring is difficult and connection reliability is difficult to guarantee are solved by connecting the first direction steel bars or the first direction steel bars and the first direction reinforcing steel bars with small diameters with the top ring Liang Zhiru, so that effective force transmission and connection of the horizontal stressed member and the top ring beam are realized.
According to the connecting method and structure of the horizontal force-transmitting member and the top ring beam, the first direction reinforcing steel bars and the first direction reinforcing steel bars are implanted to be connected after the protective layer of the partial top ring beam is opened through the side wall, so that the integrity of the horizontal force-transmitting member and the top ring beam is enhanced, the horizontal force of the horizontal force-transmitting member is transmitted into the structure of the top ring beam through the force-transmitting block, and the reliability, the stability and the safety of the connection of the horizontal force-transmitting member on the top ring beam are improved.
Drawings
FIG. 1 is a schematic perspective elevation view of a connection structure of a horizontal force-bearing member and a top ring beam according to an embodiment;
fig. 2 is a schematic perspective elevation view of a connection node of the first outward reinforcing steel bar and the top ring beam in fig. 1;
FIG. 3 is a schematic perspective elevation view of a connection structure of a horizontal force-bearing member and a top ring beam according to another embodiment;
FIG. 4 is a schematic perspective elevation view of the connection node of the first direction reinforcing steel bar, the second direction reinforcing steel bar and the top ring beam in FIG. 3;
FIG. 5 is a schematic plan view of a connection structure of a horizontal force receiving member and a top ring beam of an adjacent foundation pit;
the figure shows:
100. top ring beam, 110, side wall;
200. a horizontal force-bearing member 210, a main rib of the horizontal force-bearing member;
300. the device comprises a force transmission block 310, a first direction reinforcing steel bar 311, a first direction reinforcing steel bar 320, a second direction reinforcing steel bar 330, a drag hook reinforcing steel bar 340 and a stress meter;
401. the foundation pit is completed;
402. then excavating a foundation pit;
500. trestle bridge.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures: the advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides a method for connecting a horizontal force-receiving member 200 and a top ring beam 100, which includes the following steps:
in step 601, please refer to fig. 1 to 2 and 5, the top ring beam 100 is roughened. The method comprises the following steps: the side wall 110 of the top ring beam 100 located at one side of the rear excavated foundation pit 402 is subjected to roughening treatment to expose the reinforcing bars of the top ring beam 100.
Referring to fig. 1 to 2, in step 602, a reinforcement cage of the force transmission block 300 is constructed on the top ring beam 100. The side wall 110 of the top ring beam 100 subjected to roughening treatment is transversely embedded with a plurality of first direction reinforcing bars 310 in the top ring beam 100 along the height direction of the top ring beam 100, a plurality of second direction reinforcing bars 320 distributed at intervals are vertically and crossly bound on all the first direction reinforcing bars 310 positioned outside the top ring beam 100, and drag hook ribs 330 are arranged between the second direction reinforcing bars 320 to form a reinforcing cage of the force transmission block 300; the diameters of the first direction reinforcing bars 310 are respectively smaller than the diameters of the reinforcing bars of the top ring beam 100 and the diameters of the main reinforcing bars of the horizontal direction stress members, the first direction reinforcing bars 310 and the second direction reinforcing bars 320 are distributed in the horizontal direction, and the drag hook ribs 330 are distributed in the vertical direction.
Referring to fig. 1, step 603, the main tendon 210 of the horizontal force transfer member 200 is implanted in the reinforcement cage. The method comprises the following steps: the main tendons 210 of the horizontal force transfer member 200 are implanted on the reinforcement cage on the side of the rear excavated foundation pit 402.
In step 604, please refer to fig. 5, concrete (not shown) is poured. Setting up a formwork to pour concrete on the reinforcement cage to form a force transfer block 300 of the reinforced concrete structure, and anchoring the main rib 210 of the horizontal force transfer member 200 on the force transfer block 300 of the reinforced concrete structure through the poured concrete to set the horizontal force transfer member 200 on the top ring beam 100 through the force transfer block 300.
Referring to fig. 3 to 4, in order to improve reliability and stability of anchoring the force transferring block 300 to the top ring beam 100 and to improve force transferring performance of the horizontal force transferring member 200, in the method for connecting the horizontal force transferring member 200 to the top ring beam 100 provided by the embodiment of the present invention, the first reinforcing steel bars 311 disposed parallel to the first reinforcing steel bars 310 after being bent in the top ring beam 100 are longitudinally implanted downward on the upper surface of the top ring beam 100, the second reinforcing steel bars 320 disposed above are bound to the first reinforcing steel bars 311 to form a reinforcement cage of the force transferring block 300 higher than the top ring beam 100, the main bars 210 disposed above in the horizontal force transferring member 200 are implanted in the reinforcement cage above the upper surface of the top ring beam 100, and concrete is poured on the reinforcement cage to form the force transferring block 300 higher than the concrete structure of the top ring beam 100 on the side walls 110 of the top ring beam 100 and partially covering the upper surface of the top ring beam 100 at the side of the rear excavated foundation pit 402. The first reinforcing bars 311 are arranged in the first direction and are anchored on the top ring beam 100 in the vertical direction and the horizontal direction, so that the structural stability and reliability of the reinforced concrete structure in which the force transmission block 300 is anchored on the top ring beam 100 in the two directions can be improved.
Referring to fig. 1 and 3, in order to monitor the stress condition of the horizontal force transmission member 200 and further understand the force safety condition in the foundation pit, the method for connecting the horizontal force transmission member 200 and the top ring beam 100 according to the embodiment of the present invention is provided with a stress meter 340 on a reinforcement cage before concrete is poured, and the stress meter 340 is connected with a controller (not shown). Wherein the controller may be a microprocessor and its devices. The force applied to the horizontal force transfer member 200 is monitored by the strain gauge 340 and read by the controller.
Referring to fig. 1 and 3, in order to improve the anchoring effect, in the method for connecting the horizontal force-receiving member 200 and the top ring beam 100 provided by the embodiment of the invention, the first reinforcing bars 310 implanted into the top ring beam 100 are connected with the reinforcing bars exposed out of the top ring beam 100 after roughening treatment.
Referring to fig. 1 to 5, the embodiment of the present invention further provides a connection structure between a horizontal stress member and a top ring beam 100, which may include:
the force transmission belt comprises a plurality of force transmission blocks 300 which are positioned at one side of a rear excavation foundation pit 402 and are continuously or intermittently anchored on the top ring beam 100, each force transmission block 300 is of a reinforced concrete structure, and the reinforced concrete structure comprises a reinforcement cage anchored on the top ring beam 100 and concrete poured on the reinforcement cage; a horizontal force transfer member 200 is anchored to the force transfer block 300 on the side of the rear excavated pit 402.
Referring to fig. 1 to 2 and 5, in order to achieve the purpose of anchoring the force-transmitting block 300 to the top ring beam 100, the connection structure of the horizontal force-receiving member 200 and the top ring beam 100 provided in the embodiment of the present invention includes a plurality of first direction reinforcing bars 310 which are transversely implanted into the top ring beam 100 along the height direction of the top ring beam 100 by the side wall 110 of the top ring beam 100 subjected to roughening treatment, a plurality of second direction reinforcing bars 320 which are vertically crossed and bound on all the first direction reinforcing bars 310 located outside the top ring beam 100 at intervals, and a drag hook rib 330 disposed between the second direction reinforcing bars 320 to form the reinforcing bar cage which is not higher than the top ring beam 100; the diameters of the first direction reinforcing bars 310 are respectively smaller than the diameters of the reinforcing bars of the top ring beam 100 and the diameters of the main reinforcing bars of the horizontal direction stress members, the first direction reinforcing bars 310 and the second direction reinforcing bars 320 are distributed in the horizontal direction, and the drag hook ribs 330 are distributed in the vertical direction.
Referring to fig. 3 to 5, in order to improve the structural stability and reliability of the anchoring of the force transferring block 300 to the top ring beam 100, the connection structure of the horizontal force-receiving member 200 and the top ring beam 100 provided in the embodiment of the present invention includes a plurality of first direction reinforcing bars 310 which are transversely implanted into the top ring beam 100 along the height direction of the top ring beam 100 by the side wall 110 of the top ring beam 100 processed by roughening, a first direction reinforcing bar 311 which is disposed parallel to the first direction reinforcing bar 310 after being bent in the top ring beam 100 is longitudinally implanted downward at the upper surface of the top ring beam 100, a plurality of second direction reinforcing bars 320 which are vertically crossed around the frame formed by the first direction reinforcing bar 311 and the first direction reinforcing bar 310 outside the top ring beam 100, and a plurality of draw hook ribs 330 which are disposed between the second direction reinforcing bars 320, thereby forming a cage higher than the top ring beam 100; the diameters of the first direction reinforcing bars 310 are respectively smaller than the diameters of the reinforcing bars of the top ring beam 100 and the diameters of the main reinforcing bars of the horizontal direction stress members, the first direction reinforcing bars 310 and the second direction reinforcing bars 320 are distributed in the horizontal direction, and the drag hook ribs 330 are distributed in the vertical direction; the upper main rib of the horizontal force transfer member 200 is implanted and arranged in the reinforcement cage above the upper surface of the top ring beam 100.
Referring to fig. 3 to 5, in order to monitor the stress condition of the horizontal force transmission member 200 and further understand the safety condition of the forces in the foundation pit, in the connection structure between the horizontal force transmission member 200 and the top ring beam 100 provided by the embodiment of the present invention, the stress gauge 340 is embedded in the force transmission block 300, and the stress gauge 340 is connected with a controller.
Referring to fig. 2, in the connection structure between the horizontal force-receiving member 200 and the top ring beam 100 according to the embodiment of the present invention, the first direction reinforcing bar 310 includes a U-shaped reinforcing bar located in the middle and a double-L-shaped reinforcing bar disposed above and below the U-shaped reinforcing bar and anchored to each other. The first rebar 310 of such a configuration can improve the structural stability of the rebar cage arrangement.
Referring to fig. 4, in the connection structure between the horizontal force-bearing member 200 and the top ring beam 100 provided in the embodiment of the present invention, the first direction reinforcing steel bars 310 include a U-shaped steel bar located in the middle and an L-shaped steel bar located below the U-shaped steel bar, and the first direction reinforcing steel bars 311 are anchored with the L-shaped steel bar.
Referring to fig. 1 to 5, in the connection method and structure for a horizontal stress member 200 and a top ring beam 100 provided by the embodiment of the invention, by anchoring a force transfer block 300 on the top ring beam 100 and anchoring a main rib of the horizontal stress member on the force transfer block 300, the horizontal stress member is arranged on the top ring beam 100 through the force transfer block 300, so that the situation that the top ring beam 100 on a shared middle wall of a foundation pit and an adjacent foundation pit of which the foundation pit 402 is excavated after the foundation pit is completed is avoided from being removed for re-construction, the connection problem of the top ring beam 100 under the condition that the original reserved measure cannot be used is solved, and the difficulties of direct rib planting of the reinforcing steel bars of the horizontal stress member of the traditional foundation pit and the structure reliability problem of the top ring beam 100 are solved, so that the connection of the structure is safe and reliable.
Referring to fig. 1 to 5, the method and structure for connecting a horizontal stress member 200 and a top ring beam 100 according to the embodiments of the present invention can effectively utilize the structure of the top ring beam 100 even if the top ring beam 100 has a reserved measure but cannot be used, and the problem that the reinforcement diameter and dense distribution of the top ring beam 100 cannot be anchored with the reinforcement implantation of a horizontal stress member with a large diameter, and the direct anchoring is difficult and the connection reliability is difficult to ensure is solved by implanting and connecting a first direction reinforcement 310 with a small diameter or a first direction reinforcement 311 with the top ring beam 100, so that the effective force transmission and connection between the horizontal stress member and the top ring beam 100 are realized.
Referring to fig. 1 to 5, in the connection method and structure for a horizontal force-transmitting member 200 and a top ring beam 100 according to the embodiments of the present invention, after a protection layer of a partial top ring beam 100 is opened by a side wall 110, a first direction reinforcing bar 310 and a first direction reinforcing bar 311 are implanted to connect the top ring beam 100, so that the integrity and the shearing resistance of the top ring beam 100 are enhanced, and the horizontal force of the horizontal force-transmitting member 200 is transmitted to the structure of the top ring beam 100 through a force-transmitting block 300, thereby improving the reliability, stability and safety of the connection of the horizontal force-transmitting member 200 on the top ring beam 100.
According to the connecting method and structure of the horizontal stress member 200 and the top ring beam 100, provided by the embodiment of the invention, under the condition that the top ring beam 100 is not dismantled and rebuilt, the problems of effective force transmission and connection of the horizontal stress member 200 and the top ring beam 100 are solved, and the problem that large-diameter dense reinforcing steel bars of the horizontal stress member 200 are difficult to connect with large-diameter reinforcing steel bars of the top ring beam 100 is solved, so that the connecting method and structure have the effects of no repeated construction, resource waste avoidance and construction period shortening.
Referring to fig. 5, in the connection method and structure of the horizontal stress member 200 and the top ring beam 100 provided by the embodiment of the invention, the force transmission belt is composed of a plurality of force transmission blocks 300 and is arranged on the top ring beam 100 at intervals on one side of the rear excavation foundation pit, wherein the area of the force transmission blocks 300 at the trestle 500 is larger, so as to improve larger supporting force for the trestle 500.
The present invention is not limited to the above-described embodiments, but rather, the above-described embodiments are merely examples of some, but not all embodiments of the present invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention. Other levels of modification and variation to the present invention may occur to those skilled in the art. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims.
Claims (9)
1. A method of connecting a horizontal force-bearing member to a top ring beam, comprising:
and (3) roughening the top ring beam: roughening the side wall of the top ring beam positioned at one side of the rear excavated foundation pit to expose the reinforcing steel bars of the top ring beam;
constructing a reinforcement cage of a force transfer block on the top ring beam: the side wall of the top ring beam subjected to roughening treatment is transversely implanted with a plurality of first direction reinforcing bars in the top ring beam along the height direction of the top ring beam, a plurality of second direction reinforcing bars which are distributed at intervals are vertically and alternately bound on all the first direction reinforcing bars positioned outside the top ring beam, and drag hook ribs are arranged between the second direction reinforcing bars to form a reinforcing cage of a force transmission block; the diameters of the first direction reinforcing bars are respectively smaller than the diameters of the reinforcing bars of the top ring beam and the diameters of the main bars of the horizontal stress members, the first direction reinforcing bars and the second direction reinforcing bars are distributed in the horizontal direction, and the drag hook bars are distributed in the vertical direction;
the main bars of the horizontal force transfer components are implanted on the reinforcement cage: implanting a main rib of a horizontal force transfer component on the reinforcement cage at one side of the rear excavated foundation pit;
pouring concrete: setting up a template on the reinforcement cage to pour concrete to form a force transfer block of the reinforced concrete structure, and anchoring and arranging a main rib of the horizontal force transfer member on the force transfer block of the reinforced concrete structure through the poured concrete so as to arrange the horizontal force transfer member on the top ring beam through the force transfer block.
2. The method according to claim 1, wherein a first reinforcing bar arranged in parallel with the first reinforcing bar is vertically implanted downward in the upper surface of the top ring beam after being bent in the top ring beam, a second reinforcing bar positioned above is bound on the first reinforcing bar to form a reinforcement cage of a force transmission block higher than the top ring beam, a main bar positioned above in the horizontal force transmission member is implanted in the reinforcement cage higher than the upper surface of the top ring beam, and concrete is poured on the reinforcement cage to form a force transmission block higher than the reinforced concrete structure of the top ring beam on the side wall and part of the top ring beam positioned on the side of the foundation pit excavated after the top ring beam.
3. The method of connecting a horizontally stressed member to a top ring beam of claim 1 wherein a strain gauge is provided on the reinforcement cage prior to casting the concrete, the strain gauge being connected to a controller.
4. The method of connecting a horizontal force receiving member to a top ring beam according to claim 1, wherein the first reinforcing bars implanted into the top ring beam are connected to the exposed reinforcing bars of the top ring beam after roughening treatment.
5. A connection structure of horizontal stress component and top ring roof beam, characterized by comprising:
the force transmission belt comprises a plurality of force transmission blocks which are positioned at one side of a rear excavated foundation pit and are continuously or intermittently anchored on a top ring beam, each force transmission block is of a reinforced concrete structure, and the reinforced concrete structure comprises a reinforcement cage anchored on the top ring beam and concrete poured on the reinforcement cage;
the horizontal force transfer component is positioned on one side of the rear excavated foundation pit and is anchored and arranged on the force transfer block;
the steel reinforcement cage comprises a plurality of first direction steel reinforcements which are transversely implanted into the top ring beam along the height direction of the top ring beam through roughening treatment, a plurality of second direction steel reinforcements which are distributed at intervals are vertically and alternately bound on all the first direction steel reinforcements which are positioned outside the top ring beam, and drag hook ribs arranged between the second direction steel reinforcements form the steel reinforcement cage which is not higher than the top ring beam; the diameters of the first direction reinforcing bars are respectively smaller than the diameter of the reinforcing bars of the top ring beam and the diameter of the main bars of the horizontal force-bearing member, the first direction reinforcing bars and the second direction reinforcing bars are distributed in the horizontal direction, and the drag hook bars are distributed in the vertical direction.
6. The structure according to claim 5, wherein the reinforcement cage comprises a plurality of first direction reinforcement bars transversely implanted into the top ring beam along the height direction of the top ring beam, first direction reinforcement bars arranged in parallel with the first direction reinforcement bars after being bent in the top ring beam are longitudinally implanted downwards on the upper surface of the top ring beam, a plurality of second direction reinforcement bars distributed at intervals are vertically crossed and bound around a frame formed by the first direction reinforcement bars and the first direction reinforcement bars outside the top ring beam, and drag hook bars arranged between the second direction reinforcement bars to form the reinforcement cage higher than the reinforcement cage on the top ring beam; the diameters of the first direction reinforcing bars are respectively smaller than the diameters of the reinforcing bars of the top ring beam and the diameters of the main bars of the horizontal stress members, the first direction reinforcing bars and the second direction reinforcing bars are distributed in the horizontal direction, and the drag hook bars are distributed in the vertical direction; and the main rib positioned above the horizontal force transfer component is implanted and arranged in the reinforcement cage above the upper surface of the top ring beam.
7. The structure for connecting a horizontal force receiving member to a top ring beam according to claim 5, wherein a stress gauge is embedded in the force transmitting block, and the stress gauge is connected with a controller.
8. The structure for connecting a horizontal force receiving member to a top ring beam according to claim 5, wherein the first direction reinforcing bars comprise a U-shaped reinforcing bar positioned in the middle and double L-shaped reinforcing bars arranged above and below the U-shaped reinforcing bars and anchored to each other.
9. The structure for connecting a horizontal force receiving member to a top ring beam according to claim 6, wherein the first direction reinforcing bars comprise a U-shaped reinforcing bar positioned in the middle and an L-shaped reinforcing bar positioned below the U-shaped reinforcing bar, and the first direction reinforcing bar is anchored to the L-shaped reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210823246.3A CN115142469B (en) | 2022-07-13 | 2022-07-13 | Connection method and structure of horizontal stress component and top ring beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210823246.3A CN115142469B (en) | 2022-07-13 | 2022-07-13 | Connection method and structure of horizontal stress component and top ring beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115142469A CN115142469A (en) | 2022-10-04 |
| CN115142469B true CN115142469B (en) | 2023-05-26 |
Family
ID=83412486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210823246.3A Active CN115142469B (en) | 2022-07-13 | 2022-07-13 | Connection method and structure of horizontal stress component and top ring beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115142469B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0781274B2 (en) * | 1990-11-20 | 1995-08-30 | 日東工業株式会社 | How to build a beam on an underground wall |
| CN102505696B (en) * | 2011-10-28 | 2014-06-11 | 上海建瓴工程咨询有限公司 | Support system of rear support removing type section steel-concrete double-enclosing-purlin foundation pit and construction method |
| CN102704494B (en) * | 2012-06-20 | 2014-08-27 | 上海建工二建集团有限公司 | Sequence excavation top ring beam sharing device of adjacent foundation pits and its constructing method |
| JP6974951B2 (en) * | 2017-03-01 | 2021-12-01 | 戸田建設株式会社 | Control method of yield hinge position by bent reinforcing bar and its control structure |
| CN207512751U (en) * | 2017-10-30 | 2018-06-19 | 上海市城市建设设计研究总院（集团）有限公司 | The collar beam construction that the time phasing foundation pit complete period shares |
| KR20190142677A (en) * | 2018-06-18 | 2019-12-27 | 주식회사 한빛구조이엔지 | Top down construction method using girdir support structure |
| CN112012219B (en) * | 2020-07-17 | 2021-08-10 | 广州市设计院集团有限公司 | Supporting and connecting method at crown beam |
-
2022
- 2022-07-13 CN CN202210823246.3A patent/CN115142469B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115142469A (en) | 2022-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105625261B (en) | Quick-assembling green plant growth barricade precast concrete block and system and construction method | |
| CN102535536B (en) | Reinforcing method for improving bend and shear bearing capacity of independent foundation | |
| CN109024721B (en) | Reinforced foundation and method for improving bending and shearing resistance of existing building rigid foundation | |
| CN111663444A (en) | Suspension bridge tunnel anchor and rock mass anchor combined type anchorage structure and construction method | |
| CN115142469B (en) | Connection method and structure of horizontal stress component and top ring beam | |
| CN106758890A (en) | Campshed box culvert structure and its construction method | |
| CN212129160U (en) | Oblique-pulling foundation pit supporting structure for pile top | |
| CN102535505A (en) | Tower crane foundation formed by using external walls of basement and supporting piles of foundation pit | |
| CN109763513B (en) | Construction method of anchor cable lattice and modified soil retaining wall composite supporting and retaining structure | |
| CN106245673A (en) | A kind of rib stake formula peg board retaining wall and construction method thereof | |
| CN216474962U (en) | Non-embedded type support pile structure | |
| CN214832624U (en) | Fender pile reinforced structure | |
| CN114991557A (en) | Concrete strip foundation reinforced by additional concrete sleeve and construction method thereof | |
| CN208604588U (en) | Underground power house partition wall rock mass pays protection structure and underground power house partition wall rock mass structure in advance | |
| CN209779638U (en) | Reinforced concrete blade wall supporting system for deep foundation pit support replacement construction | |
| CN209260748U (en) | A kind of stepped tower crane | |
| CN109137887B (en) | Underground continuous wall structure penetrating through karst cave, construction method and supporting device | |
| CN220284883U (en) | Connection structure of bottom plate structure and underground diaphragm wall | |
| CN110777844A (en) | Wall supporting structure based on waste guardrail stand columns and construction method thereof | |
| CN107354947A (en) | One kind can adjust prestressed supporting pile structure and construction method | |
| CN212375896U (en) | Line tower type-returning pile-anchor composite foundation suitable for karst region | |
| CN217840128U (en) | Concrete sleeve is adopted to reinforce bar-shaped foundation after load-bearing wall is unloaded | |
| CN212223898U (en) | A add protection architecture for foundation ditch enclosure | |
| CN213538995U (en) | Foundation pit reinforcing structure capable of reducing influence of bottom flow plastic soil body | |
| CN108951618A (en) | A kind of pile-anchor retaining device and its construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |