CN218757529U

CN218757529U - Section steel concrete node haunches in deep foundation pit engineering

Info

Publication number: CN218757529U
Application number: CN202223361069.6U
Authority: CN
Inventors: 黄佳毅; 陈发前; 廖理; 王成峰; 程宇; 张章; 唐传满; 许子文
Original assignee: Chongqing Construction Engineering Group Co Ltd; Chongqing Construction Engineering Industry Co Ltd
Current assignee: Chongqing Construction Engineering Group Co Ltd; Chongqing Construction Engineering Industry Co Ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-03-28
Anticipated expiration: 2032-12-14

Abstract

The utility model relates to a shaped steel concrete node field discloses a shaped steel concrete node in deep basal pit engineering adds armpit, including post and roof beam, the post includes the shaped steel of vertical setting, and the crossing position of beam column is the node, and the node is equipped with the level and adds the armpit, and the level adds armpit one end and the beam is aequilate, and the level adds the armpit other end width and is greater than the shaped steel width, and the roof beam includes the roof beam owner muscle, and the roof beam owner muscle includes a plurality of outside main muscle, and a plurality of outside main muscle pass the level and add behind the armpit from shaped steel both sides and pass, and outside main muscle both ends bury respectively in the roof beam of post both sides to improve the wholeness of shaped steel concrete node and then improve the intensity of node.

Description

Section steel concrete node haunches in deep basal pit engineering

Technical Field

The utility model relates to a shaped steel concrete node field, concretely relates to shaped steel concrete node in deep basal pit engineering adds armpit.

Background

In deep basal pit engineering, the span of beam column is big, the size is big, and the post adopts large-size shaped steel usually, like cross shaped steel, leads to from this in the crossing position of beam column, and the post can't be passed to the beam owner muscle, and is unable continuous, needs the disconnection, and then leads to the wholeness of beam column node lower, and then leads to intensity lower.

In the prior art, a form of forming holes in section steel is generally adopted, and main reinforcements of a beam penetrate through the holes at a beam-column joint position so as to realize continuous arrangement of the main reinforcements, but the more the main reinforcements of the beam are, the more the holes are formed, and the lower the strength of the section steel is; the less the main bar of the beam, the lower the strength of the beam.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shaped steel concrete node in the deep basal pit engineering adds armpit to improve the wholeness of shaped steel concrete node and then improve the intensity of node.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a shaped steel concrete node adds armpit in deep basal pit engineering, includes post and roof beam, and the post includes the shaped steel of vertical setting, and the crossing position of beam column is the node, and the node is equipped with the level and adds the armpit, and the level adds armpit one end and the beam is aequilate, and the level adds the armpit other end width and is greater than the shaped steel width, and the roof beam includes the main muscle of roof beam, and the main muscle of roof beam includes a plurality of outsides main muscle, and a plurality of outsides main muscle passes from shaped steel both sides after passing the level adds the armpit, and the main muscle both ends in the outside bury respectively in the roof beam of post both sides.

The beneficial effect of this scheme does:

1. add the armpit through setting up the level, make outside owner muscle bypass the post, and then realize that outside owner muscle is continuous in the node position, promote the wholeness of node, and then improve the intensity of node.

2. The outside owner muscle of shaped steel both sides presss from both sides tight shaped steel, and shaped steel and then provides the side direction holding power for the roof beam through the outside reinforcing bar, promotes the wholeness of node, and then improves the intensity of node.

3. The node position is the weak point of structure, and the horizontal haunching has increased the geometric dimensions of node position, has increased the ability that the node resisted moment of flexure, shear force and axial force.

Preferably, as an improvement, shaped steel is close to roof beam one side and is equipped with the bracket, and the bracket includes horizontal plate and vertical web, and the girder owner muscle still includes inboard main muscle, and inboard main muscle tip passes the level and adds the armpit after-fixing on the horizontal plate. Due to the arrangement, when the inner main rib bypasses the section steel, the curvature is too large, and plastic deformation is easy to generate, so that the inner main rib cannot bypass the section steel as the outer main rib and can only be fixed on the horizontal plate; if the inner main reinforcement is directly welded on the section steel, the end part of the inner main reinforcement needs to be bent by 90 degrees to increase the welding length because the section steel is vertical, but the inner reinforcement deforms after being bent, so that the strength is lowered; and the horizontal plate and the inboard main muscle are the level setting, and inboard main muscle welds and need not to bend on the horizontal plate, and then guarantees the intensity of inboard reinforcing bar.

Preferably, as an improvement, the column further comprises a stirrup, the stirrup being horizontally disposed, the stirrup passing through the web. So set up, through the fixed stirrup of web, prevent that the stirrup from warping, increased the intensity of stirrup.

Preferably, as an improvement, the shaped steel is I-steel, and the I-steel is provided with horizontal stiffening ribs, and the number and the elevation of the stiffening ribs are equal to those of the horizontal plate. The horizontal supporting force of the I-shaped steel to the horizontal plate is increased through the stiffening ribs, and the stability of the structure is further improved.

Preferably, as an improvement, the beam comprises a first beam and a second beam which are perpendicular to each other, the first beam and the second beam are equal in height, and the outer main rib of the first beam penetrates through the web of the corbel on one side close to the second beam. So set up, the web of the bracket that is close to second roof beam one side is passed to the outside owner muscle of first roof beam, and the web plays the fixed action to the outside owner muscle, prevents outside owner muscle middle part gliding, and then reduces the outside owner muscle and warp.

Drawings

FIG. 1 is a sectional top view of example 1;

FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;

FIG. 3 is a sectional top view of example 2.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the beam comprises a first beam 1, an outer main rib 101, an inner main rib 102, a second beam 2, a horizontal haunch 3, a column 4, a bracket 410, a horizontal plate 411, a web plate 412, a cross-shaped steel 402, a stirrup 403, a column main rib 404, an I-shaped steel 405 and a stiffening rib 406.

Example 1

Example 1 is substantially as shown in fig. 1 and 2: the utility model provides a shaped steel concrete node adds armpit in deep basal pit engineering, including post 4 and roof beam, as shown in fig. 1, the roof beam includes mutually perpendicular's first roof beam 1 and second roof beam 2,

first roof beam

1 and 2 highly equal of second roof beam, first roof beam 1 sets up for left right direction, first roof beam 1 is including two parts that are located post 4 left side and right side, second roof beam 2 sets up for upper and lower direction, second roof beam 2 is including two parts that are located 4 upside and downside of post, four crossing positions of beam column 4 are the node, the shaping is pour to the node has the level to add armpit 3, the level adds the isosceles trapezoid part that armpit 3 is in the broken line frame.

The column 4 comprises vertical section steel, a column main rib 404 and a plurality of stirrups 403, the section steel is cross section steel 402, the stirrups 403 are arranged horizontally, the cross section steel 402 penetrates through the stirrups 403, brackets 410 are respectively welded on the upper, lower, left and right sides of the cross section steel 402, the column main rib 404 is vertically arranged and avoids the positions of the brackets 410, as shown in fig. 2, each bracket 410 comprises a vertical web plate 412 and two horizontal plates 411, the upper end and the lower end of each web plate 412 are respectively welded with one horizontal plate 411, the side surfaces of the horizontal plates 411 and the web plates 412 are respectively welded with the cross section steel 402, and the stirrups 403 sequentially penetrate through the web plates 412 of the four brackets 410.

As shown in figure 1, one end of the horizontal haunch 3 is equal to the width of the beam, and the width of the other end of the horizontal haunch 3 is larger than the width of the cross-shaped steel 402 and smaller than the width of the column 4.

First roof beam 1 and second roof beam 2 all include the roof beam owner muscle, as shown in fig. 1, the roof beam owner muscle includes a plurality of outside owner muscle 101 and a plurality of inboard owner muscle 102, pass from cross shaped steel 402 both sides after a plurality of outside owner muscle 101 pass horizontal haunches 3, in the roof beam of 4 both sides of post is buried respectively to outside owner muscle 101 both ends, the outside owner muscle 101 of first roof beam 1 divides two sets of webs 412 that pass corbels 410 of upper and lower both sides, the outside owner muscle 101 of second roof beam 2 divides two sets of webs 412 that pass corbels 410 of the left and right sides, as shown in fig. 2, the inboard owner muscle 102 tip of top passes horizontal haunches 3 and welds on the horizontal plate 411 of top, the inboard owner muscle 102 of below passes horizontal haunches 3 and welds on the horizontal plate 411 of below.

The beam 1, column 4 and horizontal haunch 3 all comprise concrete sections, the section lines of which are omitted from figure 2 for ease of illustration.

The specific implementation process comprises the following steps:

1. add armpit 3 through setting up the level, make outside owner muscle 101 bypass post 4, and then realize that outside owner muscle 101 is continuous in the node position, promote the wholeness of node, and then improve the intensity of node.

2. The outside owner muscle 101 of cross shaped steel 402 both sides presss from both sides tight cross shaped steel 402, and cross shaped steel 402 provides the side direction holding power for the roof beam through the outside reinforcing bar, promotes the wholeness of node, and then improves the intensity of node.

3. The node position is the weak point of the structure, the horizontal haunching 3 increases the geometric dimension of the node position, and the capacity of resisting bending moment, shearing force and axial force of the node is increased.

Example 2

Example 2 is substantially as shown in fig. 3, and example 2 differs from example 1 in that: the beam does not comprise the second beam 2, the section steel is I-shaped steel 405, brackets 410 are welded on the left side and the right side of the I-shaped steel 405 respectively, horizontal stiffening ribs 406 are integrally formed on the I-shaped steel 405, the stiffening ribs 406 comprise two parts positioned on the upper side and the lower side of the I-shaped steel 405, and the number and the elevation of the stiffening ribs 406 are equal to those of the horizontal plate 411.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a shaped steel concrete node adds armpit in deep basal pit engineering which characterized in that: including post and roof beam, the post includes the shaped steel of vertical setting, and the crossing position of beam column is the node, and the node is equipped with the level and adds the armpit, and the level adds armpit one end and roof beam aequilate, and the level adds armpit other end width and is greater than the shaped steel width, and the roof beam includes roof beam owner muscle, and roof beam owner muscle includes a plurality of outside owner muscle, and a plurality of outside owner muscle pass the level and add the armpit back and pass from the shaped steel both sides, and outside owner muscle both ends bury respectively in the roof beam of post both sides.

2. The steel reinforced concrete node haunched in the deep foundation pit engineering according to claim 1, characterized in that: the bracket is arranged on one side, close to the beam, of the section steel, the bracket comprises a horizontal plate and a vertical web plate, the beam main rib further comprises an inner side main rib, and the end part of the inner side main rib penetrates through the horizontal armpit and then is fixed on the horizontal plate.

3. The steel reinforced concrete node haunches in the deep foundation pit engineering according to claim 2, characterized in that: the column further comprises stirrups which are horizontally arranged and penetrate through the web.

4. The steel reinforced concrete node haunched in the deep foundation pit engineering according to claim 3, characterized in that: the structural steel is I-shaped steel, horizontal stiffening ribs are arranged on the I-shaped steel, and the number and the elevation of the stiffening ribs are equal to those of the horizontal plate.

5. The steel reinforced concrete node haunched in the deep foundation pit engineering according to claim 3, characterized in that: the roof beam includes mutually perpendicular's first roof beam and second roof beam, and first roof beam and second roof beam height equal, the web of the bracket that is close to second roof beam one side is passed to the outside owner muscle of first roof beam.