CN218176755U

CN218176755U - Rear anchoring bar-planting structure of newly-added cantilever plate

Info

Publication number: CN218176755U
Application number: CN202222641386.7U
Authority: CN
Inventors: 王喜堂; 朱进旺; 于璐; 汤瑶
Original assignee: Shenzhen General Institute of Architectural Design and Research Co Ltd
Current assignee: Shenzhen General Institute of Architectural Design and Research Co Ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2022-12-30
Anticipated expiration: 2032-10-08

Abstract

The utility model provides a pair of back anchor bar planting structure of newly-increased board of encorbelmenting relates to the building structure field. The rear anchoring bar planting structure of the newly added cantilever plate comprises an original structural member, the newly added cantilever plate and a cantilever plate stress bar. The original structural component is provided with a longitudinal bar planting hole and a transverse bar planting hole; the stress rib of the cantilever plate comprises a plate bottom stress section, a side stress section, a top stress section and a bending stress section which are sequentially arranged, the plate bottom stress section, the side stress section and the top stress section are sequentially connected to form a stress rib frame body, the newly-added cantilever plate is arranged in the stress rib frame body, the bending stress section is bent relative to the top stress section, the bending stress section is anchored into the longitudinal rib implanting hole, and the plate bottom stress section is anchored into the transverse rib implanting hole. The embodiment of the utility model provides a can improve the structure stress state, reduce the potential safety hazard.

Description

Rear anchoring bar-planting structure of newly-added cantilever plate

Technical Field

The utility model relates to a building structure field especially relates to a back anchor bar planting structure of board newly-increased encorbelment.

Background

In the existing structural engineering, some newly added overhanging components often appear for various reasons. At present, the main means for newly-added components is to ensure the anchoring measure of the steel bars and the original main body structure by the post-anchoring technology of chemical bar planting. For the cantilever plate member, the stressed steel bar is anchored by using a straight anchoring bar-planting mode of an original structural member to form a post-anchoring bar-planting mode in which the steel bar is directly pulled.

Newly-increased cantilever plate atress reinforcing bar is at the anchor bar planting anchor of the straight anchor of former structural component, forms the back anchor bar planting mode that the reinforcing bar is direct to be drawn, and the life who plants the bar and glue is generally far less than with major structure design service life, and the top is drawn the reinforcing bar and is directly drawn at back anchor section, if take place to become invalid, the cantilever plate has the risk of collapsing in the twinkling of an eye, has hidden danger.

For example, patent No. CN216277054U discloses a post-rebar-planting anchoring structure for a newly added cantilever beam of a shear wall structure, which is characterized in that a straight anchoring and rebar-planting anchoring mode is formed for anchoring a shear wall (an original structural member) to form a post-anchoring and rebar-planting mode in which a rebar is directly pulled, so that failure is easily caused, and hidden danger exists.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses back anchor bar planting structure of board newly-increased encorbelmenting, it can improve structure stress state, reduces the potential safety hazard.

The utility model discloses a back anchor bar planting structure of newly-increased board of encorbelmenting, this back anchor bar planting structure of newly-increased board of encorbelmenting includes:

the original structural component is provided with longitudinal bar planting holes and transverse bar planting holes;

newly adding a cantilever plate;

the cantilever plate stress bar comprises a plate bottom stress section, a side stress section, a top stress section and a bending stress section, wherein the plate bottom stress section, the side stress section, the top stress section and the bending stress section are sequentially arranged, the plate bottom stress section, the side stress section and the top stress section are sequentially connected to form a stress bar frame body, the newly-added cantilever plate is arranged on the stress bar frame body, the bending stress section is opposite to the top stress section, the bending stress section is bent, the bending stress section is anchored into the longitudinal bar planting hole, and the plate bottom stress section is anchored into the transverse bar planting hole.

As an optional implementation manner, the original structural member is further provided with a steel bar placing groove, the steel bar placing groove is communicated with the longitudinal steel bar planting hole, and the steel bar part of the top tension section is placed in the steel bar placing groove.

As an alternative embodiment, the groove width of the reinforcing steel bar placing groove satisfies the inequality: w is larger than or equal to max {50,5d }, wherein W represents the groove width of the steel bar placing groove, max is a function of the maximum value of the two, and d represents the diameter of the steel bar of the stress bar of the cantilever plate.

As an alternative embodiment, the length of the transverse bar-planting hole is smaller than that of the bar-placing groove.

As an alternative embodiment, the length of the reinforcing steel bar placing groove satisfies the inequality: l1 is more than or equal to max {100,8d }, wherein L1 represents the length of the steel bar placing groove, max is a function taking the maximum value of the length and the max, and d represents the diameter of the steel bar of the stressed rib of the cantilever plate.

As an alternative embodiment, the length of the bending stress section satisfies the inequality: l2 is larger than or equal to 15d, wherein L2 represents the length of the bending stress section, and d represents the diameter of the reinforcing steel bar of the stress bar of the cantilever plate.

As an alternative embodiment, the plate bottom stress section, the side stress section, the top tension section and the bending stress section are welded in sequence; or the cantilever plate stress rib forms the plate bottom stress section, the side stress section, the top tension section and the bending stress section through bending.

As an optional implementation manner, the cantilever plate stress ribs include multiple groups, and the multiple groups of cantilever plate stress ribs are parallel to each other and arranged at intervals.

As an optional implementation mode, the newly-added cantilever plate is provided with a plurality of groups of plate distribution ribs, and the plurality of groups of plate distribution ribs are all welded with the plurality of groups of stress ribs of the cantilever plate.

As an alternative embodiment, the length of the bending force-bearing section is greater than the length of the lateral force-bearing section.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the embodiment of the utility model provides a pair of back anchor bar planting structure of board newly-increased encorbelments, this back anchor bar planting structure of newly-increased encorbelment board can be under construction newly-increased encorbelment board on former structural component to can improve the atress condition, be about to main bearing stress design for shear stress, thereby improve structural reliability and stability, reduce the structural potential safety hazard. The embodiment of the utility model provides a back anchor bar planting structure of newly-increased board of encorbelmenting can be at first construct on former structural component vertically plant the muscle hole and transversely plant the muscle hole, then plant the muscle construction, after planting the muscle sclerosis and accomplishing, can draw the experiment, treat to draw the experiment and pass through the back, will bend the vertical muscle hole of planting of atress section anchor, with the horizontal muscle hole of planting of board end atress section anchor. And finally, pouring concrete in the longitudinal bar planting holes and the transverse bar planting holes to finish the post-anchoring bar planting construction of the newly added cantilever plate. After the bending stress section is anchored into the longitudinal bar planting hole, concrete needs to be poured into the longitudinal bar planting hole; similarly, after the plate bottom stress section is anchored into the transverse bar planting hole, concrete is required to be poured into the transverse bar planting hole. The bending stress section can bear shear stress, and compared with the tensile stress in the prior art, the shear stress has higher reliability and safety, thereby being beneficial to reducing potential safety hazards.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a rear anchoring bar-planting structure of a newly added cantilever plate disclosed in an embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic cross-sectional view taken at A-A in FIG. 1;

FIG. 3 is a schematic cross-sectional view at B-B in FIG. 1;

fig. 4 is an enlarged schematic view of the structure at C in fig. 2.

Icon: 100. newly adding a rear anchoring bar-planting structure of the cantilever plate; 110. a primary structural member; 111. longitudinal bar planting holes; 112. transverse tendon planting holes; 113. a steel bar placing groove; 120. newly adding a cantilever plate; 121. distributing ribs on the plate; 130. stress ribs of the cantilever plate; 131. a plate bottom stress section; 132. a side force-bearing section; 133. a top tension section; 134. and bending the stress section.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Please refer to fig. 1 to 4, which illustrate a rear anchoring bar-planting structure 100 of a newly-added cantilever plate provided by the embodiment of the present invention, the rear anchoring bar-planting structure 100 of the newly-added cantilever plate can improve the stress state of the structure, and reduce the potential safety hazard.

The embodiment of the utility model provides an in, this back anchor bar planting structure 100 of newly-increased board of encorbelmenting includes original structural component 110, newly-increased board 120 and the board atress muscle 130 of encorbelmenting. The original structural member 110 is provided with longitudinal bar planting holes 111 and transverse bar planting holes 112; the cantilever plate stress rib 130 comprises a plate bottom stress section 131, a side stress section 132, a top tension section 133 and a bending stress section 134 which are sequentially arranged, the plate bottom stress section 131, the side stress section 132 and the top stress section are sequentially connected to form a stress rib frame body, the newly-added cantilever plate 120 is arranged in the stress rib frame body, the bending stress section 134 is bent relative to the top stress section 133, the bending stress section 134 is anchored into the longitudinal rib-implanting hole 111, and the plate bottom stress section 131 is anchored into the transverse rib-implanting hole 112.

It should be noted that the embodiment of the present invention provides a new cantilever plate rear anchoring bar-planting structure 100 for constructing a new cantilever plate 120 on an original structural member 110. Wherein, former structural component 110 can be for structure roof beam, shear force wall etc. the embodiment of the utility model provides an in, can be at first construct on former structural component 110 and vertically plant muscle hole 111 and transversely plant muscle hole 112, then plant the muscle construction, after planting the muscle sclerosis and accomplishing, can draw the experiment, treat to draw the experiment and pass through the back, will bend stress section 134 anchor and vertically plant muscle hole 111, with the horizontal muscle hole 112 of planting of board end stress section 131 anchor. And finally, pouring concrete in the longitudinal bar planting holes 111 and the transverse bar planting holes 112 to finish the post-anchoring bar planting construction of the newly added cantilever plate 120. After the bending stress section 134 is anchored into the longitudinal bar-embedding hole 111, concrete needs to be poured into the longitudinal bar-embedding hole 111; similarly, after the plate bottom stress section 131 is anchored into the transverse tendon-embedding hole 112, concrete is also poured into the transverse tendon-embedding hole 112.

The embodiment of the utility model provides an in, bending atress section 134 can bear shear stress, and for the tensile stress among the prior art, shear stress has higher reliability and security to be favorable to reducing the potential safety hazard.

In this embodiment, the original structural member 110 is further provided with a reinforcing bar placing groove 113, the reinforcing bar placing groove 113 is communicated with the longitudinal bar-planting holes 111, and the reinforcing bar portion of the top tension section 133 is placed in the reinforcing bar placing groove 113.

It should be noted that the reinforcing bar placing groove 113 may be formed by chiseling off a reinforcing bar protection layer of the original structural member 110, such as an original structural beam, to form the reinforcing bar placing groove 113 as shown in the figure, and punching a longitudinal bar embedding hole 111 at the bottom of the reinforcing bar placing groove 113. After the bar planting step is completed, the bar planting holes and the reinforcing steel bar placing grooves 113 can be poured simultaneously, so that the structure is more stable and reliable.

Referring to fig. 3, optionally, in the present embodiment, the width of the reinforcing bar placing groove 113 satisfies the inequality: w is more than or equal to max {50,5d }, wherein W represents the groove width of the steel bar placing groove 113, max is a function taking the maximum value of the two, and d represents the steel bar diameter of the stress bar 130 of the cantilever plate. For the max function, if d is less than 10, the value of max {50,5d } is 50, for example, if d is 8, then max {50,5d } is 50 relative to 50 and 40 (5 × 8), at which time, the groove width W of the rebar placement groove 113 is greater than or equal to 50; for d greater than 10, max {50,5d } has a value of 5d, for example d is 11, max {50,5d } is 55 relative to 50 and 55 (5X 11), at which time the width W ≧ 55 of the rebar placement slot 113.

As an alternative embodiment, the length of the reinforcing bar placing groove 113 satisfies the inequality: l1 is more than or equal to max {100,8d }, wherein L1 represents the length of the steel bar placing groove 113, max is a function taking the maximum value of the two, and d represents the steel bar diameter of the cantilever plate stress bar 130. For the max function, if d is less than 12.5, the value of max {100,8d } is 100, for example, if d is 10, then max {100,8d } is 100 relative to 100 and 80 (8 × 10), at which time, the length L1 of the steel bar placing groove 113 is greater than or equal to 100; if d is greater than 12.5, the value of max {100,8d } is 8d, for example, if d is 15, then max {100,8d } is 120 relative to 100 and 120 (8 × 15), and at this time, the length L1 of the rebar placement groove 113 is equal to or greater than 120.

Optionally, in this embodiment, the length of the transverse tendon-embedding hole 112 is smaller than the length of the tendon-placing groove 113, that is, the length of the tendon-placing groove 113 is greater than the length of the transverse tendon-embedding hole 112, or the length of the bending stress section 134 is greater than the length of the side stress section 132, so that the bending stress section 134 has a better stress effect.

Referring to fig. 4, optionally, in the present embodiment, the length of the bending force-bearing section 134 satisfies the inequality: l2 is larger than or equal to 15d, wherein L2 represents the length of the bending stress section 134, and d represents the diameter of the reinforcing steel bar of the cantilever plate stress rib 130. When the inequality relation is satisfied, the bending stress section 134 can provide better shearing stress, so that the structural stability and reliability of the newly added cantilever plate 120 are ensured, and potential safety hazards are reduced.

Optionally, the plate bottom stress section 131, the side stress section 132, the top tension section 133 and the bending stress section 134 are welded in sequence; alternatively, the cantilever plate stress rib 130 forms a plate bottom stress section 131, a side stress section 132, a top tension section 133 and a bending stress section 134 by bending. In this embodiment, the cantilever slab stress rib 130 is a whole steel bar, and each stress section is formed by bending.

It is noted that, as shown in fig. 1, the cantilever-plate stress ribs 130 may include a plurality of sets, and the plurality of sets of cantilever-plate stress ribs 130 are arranged in parallel and at intervals to each other. Optionally, for multiple sets of cantilever plate ribs 130, the spacing between any two adjacent sets of cantilever plate ribs 130 is equal, so that the bearing capacity is more uniform.

In this embodiment, the newly added cantilever plate 120 has a plurality of groups of plate distribution ribs 121, and the plurality of groups of plate distribution ribs 121 are all welded to the plurality of groups of cantilever plate stress ribs 130. That is, each plate distribution rib 121 is welded to each cantilever plate force rib 130 to increase structural stability therebetween.

Referring to fig. 1 to fig. 4, an embodiment of the present invention provides a rear anchoring bar-planting structure 100 of a newly added cantilever plate: this newly-increased board of encorbelmenting's back anchor bar planting structure 100 can be under construction newly-increased board 120 of encorbelmenting on former structural component 110 to can improve the atress condition, be about to main bearing stress design for shear stress, thereby improve structural reliability and stability, reduce the structural safety hidden danger. The embodiment of the utility model provides a back anchor bar planting structure 100 of newly-increased board of encorbelmenting can be at first under construction vertically plant muscle hole 111 and transversely plant muscle hole 112 on former structural component 110, then plant the muscle construction, after the bar planting sclerosis is accomplished, can draw the experiment, treat to draw the experiment and pass through the back, will bend stress section 134 anchor and vertically plant muscle hole 111, with the horizontal bar planting hole 112 of stress section 131 anchor at the bottom of the board. And finally, pouring concrete in the longitudinal bar planting holes 111 and the transverse bar planting holes 112 to finish the post-anchoring bar planting construction of the newly added cantilever plate 120. After the bending stress section 134 is anchored into the longitudinal bar-embedding hole 111, concrete needs to be poured into the longitudinal bar-embedding hole 111; similarly, after the plate bottom stress section 131 is anchored into the transverse tendon-embedding hole 112, concrete is also poured into the transverse tendon-embedding hole 112. The bending stress section 134 can bear shear stress, and compared with the tensile stress in the prior art, the shear stress has higher reliability and safety, thereby being beneficial to reducing potential safety hazards.

It is right above the embodiment of the utility model discloses a back anchor bar planting structure of newly-increased board of encorbelmenting has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment is only used for helping understanding the utility model discloses a back anchor bar planting structure of newly-increased board of encorbelmenting and core thought: meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides a back anchor bar planting structure of newly-increased board of encorbelmenting which characterized in that includes:

the structure comprises an original structure component (110), wherein the original structure component (110) is provided with longitudinal bar planting holes (111) and transverse bar planting holes (112);

a new cantilever plate (120) is added;

the cantilever plate stress rib (130) comprises a plate bottom stress section (131), a side stress section (132), a top tension section (133) and a bending stress section (134) which are sequentially arranged, the plate bottom stress section (131), the side stress section (132) and the top stress section are sequentially connected to form a stress rib frame body, a newly-added cantilever plate (120) is arranged in the stress rib frame body, the bending stress section (134) is bent relative to the top tension section (133), the bending stress section (134) is anchored into the longitudinal rib implanting hole (111), and the plate bottom stress section (131) is anchored into the transverse rib implanting hole (112).

2. The structure of the post-anchored bar-planting of the newly-added cantilever slab as claimed in claim 1, wherein the original structural member (110) is further provided with a bar-placing groove (113), the bar-placing groove (113) is communicated with the longitudinal bar-planting hole (111), and the bar part of the top tension section (133) is placed in the bar-placing groove (113).

3. The rear anchoring bar-planting structure of the newly added cantilever plate as claimed in claim 2, wherein the width of the reinforcing bar placing groove (113) satisfies the inequality: w is larger than or equal to max {50,5d }, wherein W represents the groove width of the steel bar placing groove (113), max is a function taking the maximum value of the two, and d represents the steel bar diameter of the stress bar (130) of the cantilever plate.

4. The post-anchoring bar-planting structure of the newly added cantilever plate according to claim 2, wherein the length of the transverse bar-planting hole (112) is smaller than that of the bar-placing groove (113).

5. The structure of the post-anchored steel bar planting of the newly added cantilever plate as claimed in any one of claims 2-4, wherein the length of the steel bar placing groove (113) satisfies the inequality: l1 is more than or equal to max {100,8d }, wherein L1 represents the length of the steel bar placing groove (113), max is a function taking the maximum value of the two, and d represents the steel bar diameter of the stress bar (130) of the cantilever plate.

6. The structure of the post-anchoring bar-planting of the newly-added cantilever plate according to claim 1, wherein the length of the bending stress section (134) satisfies the inequality: l2 is larger than or equal to 15d, wherein L2 represents the length of the bending stress section (134), and d represents the diameter of the reinforcing steel bar of the cantilever plate stress rib (130).

7. The post-anchor bar-planting structure of the newly-added cantilever slab as claimed in claim 1, wherein the slab bottom stress section (131), the side stress section (132), the top tension section (133) and the bending stress section (134) are welded in sequence; or the cantilever plate stress rib (130) forms the plate bottom stress section (131), the side stress section (132), the top tension section (133) and the bending stress section (134) through bending.

8. The structure of the post-anchoring embedded steel bar of the newly-added cantilever plate as claimed in claim 1, wherein the cantilever plate stress bars (130) comprise a plurality of groups, and the plurality of groups of cantilever plate stress bars (130) are parallel to each other and are arranged at intervals.

9. The structure of the post-anchoring bar-planting of the newly added cantilever plate as claimed in claim 8, wherein the newly added cantilever plate (120) has a plurality of groups of plate distribution ribs (121), and the plurality of groups of plate distribution ribs (121) are all welded to the plurality of groups of cantilever plate stress ribs (130).

10. The structure of the new cantilever plate post-anchoring bar-planting according to claim 1, wherein the length of the bending stress section (134) is greater than the length of the side stress section (132).