阅读说明：本技术 抗剪组件及其施工方法 (Shear assembly and construction method thereof ) 是由 白玉庆 魏建勋 邹仙德 吕文 闫江 于 2019-11-14 设计创作，主要内容包括：本发明涉及一种抗剪组件及其施工方法,该抗剪组件间隔支设于筏板基础的垫层上并用于支撑连接筏板基础中的下层钢筋和上层钢筋,该抗剪组件包括：相对设置且竖直支设于垫层的两个支撑件,该支撑件的竖截面呈X形,该支撑件穿设于下层钢筋且顶部绑扎连接上层钢筋；以及拉结连接于相对的两个支撑件之间的连接杆,且该连接杆位于上层钢筋和下层钢筋之间。本发明有效地解决了筏板基础抗冲切能力差的问题,提升筏板基础抗冲切能力,且安装快速,提升了施工效率,保证了施工质量。(The invention relates to a shear assembly and a construction method thereof, wherein the shear assembly is supported on a cushion layer of a raft foundation at intervals and used for supporting and connecting a lower layer steel bar and an upper layer steel bar in the raft foundation, and the shear assembly comprises: the two supporting pieces are oppositely arranged and vertically supported on the cushion layer, the vertical section of each supporting piece is X-shaped, and each supporting piece is arranged on the lower layer of steel bars in a penetrating manner and the top of each supporting piece is bound with the upper layer of steel bars; and the connecting rod is connected between the two opposite supporting pieces in a drawknot manner and is positioned between the upper layer steel bar and the lower layer steel bar. The invention effectively solves the problem of poor anti-punching capability of the raft foundation, improves the anti-punching capability of the raft foundation, is quick to install, improves the construction efficiency and ensures the construction quality.)

1. The utility model provides an assembly that shears, its characterized in that, assembly that shears establishes on raft foundation's bed course at interval and is used for the support to connect lower floor's reinforcing bar and upper reinforcing bar in the raft foundation, assembly that shears includes:

the two supporting pieces are oppositely arranged and vertically supported on the cushion layer, the vertical section of each supporting piece is X-shaped, each supporting piece penetrates through the lower-layer steel bar, and the tops of the supporting pieces are bound and connected with the upper-layer steel bar; and

the drawknot is connected in two relative connecting rod between the support piece, just the connecting rod is located the upper reinforcing bar with between the reinforcing bar of lower floor.

2. A shear module according to claim 1, wherein the support member comprises a plurality of struts having an arcuate shape, the middle portions of the struts being bent outwardly, the support member being assembled by a plurality of bent portions of the struts being brought close to each other and fixedly connected.

3. The shear assembly of claim 2, wherein the strut includes a first vertical portion vertically mounted to the mat, a first inclined portion obliquely and obliquely connected to the first vertical portion, an offset portion vertically connected to the first inclined portion, a second inclined portion obliquely and obliquely connected to the offset portion, and a second vertical portion vertically connected to the second inclined portion, the second inclined portion being inclined in a direction opposite to that of the first inclined portion, and the second vertical portion being aligned with the first vertical portion;

the supporting pieces are formed by mutually approaching and fixedly connecting the offset parts of the supporting rods.

4. A shear assembly according to claim 2, wherein the struts are of unitary construction and are formed by bending a rebar.

5. The shear assembly of claim 2, wherein the first upright portion has a length that matches the height of the lower layer of reinforcement bars and the second upright portion has a length that matches the height of the upper layer of reinforcement bars.

6. A shear assembly according to claim 2, wherein the support member is split from two or four struts.

7. The shear assembly of claim 2, further comprising fixing seats fixed to both ends of the strut, the strut being fixedly connected to the underlying layer or the upper layer of reinforcement bars through the fixing seats.

8. The shear module of claim 7, wherein the anchor block includes a fixed plate and a sleeve secured to the fixed plate and adapted to mate with the strut, the sleeve having internal threads;

the supporting rod is provided with an external thread corresponding to the sleeve, and the supporting rod is screwed in the sleeve to be fixedly connected with the fixed seat.

9. A shear assembly according to claim 1, wherein the tie bars are laid with horizontal plates to form a construction walkway.

10. A method of constructing a shear assembly according to claim 1, comprising the steps of:

providing the shear assembly, and enabling the support to penetrate through the lower layer of steel bars and be supported on the cushion layer;

connecting the connecting rods between the two opposite supporting pieces in a pulling manner, and laying a horizontal plate on the connecting rods to form a construction pavement;

binding and connecting the upper layer of steel bars with one end of the support piece far away from the cushion layer by using the construction walkway;

and removing the horizontal plates and pouring concrete on the cushion layer to form the raft foundation, so that the upper-layer steel bars, the lower-layer steel bars and the shear assemblies are all embedded in the raft foundation.

Technical Field

The invention relates to the field of buildings, in particular to a shear assembly and a construction method thereof.

Background

In super high-rise building raft foundation structure, anti shear load mainly improves through increasing to arrange shear reinforcement, and shear reinforcement mainly utilizes the tensile strength of reinforcing bar to improve the die-cut force, but common shear reinforcement is mainly the stirrup, often is arranged in beam slab foundation structure, because the intensity grade and the size of stirrup are less, can't guarantee raft foundation's anti shear capacity, consequently can't use in the great raft board foundation of height.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides the shear resistant assembly, solves the problem of poor anti-shear capability of the raft foundation, improves the anti-shear capability of the raft foundation, is quick to install, improves the construction efficiency and ensures the construction quality.

The technical scheme for realizing the purpose is as follows:

the invention provides a shear assembly, which is supported on a cushion layer of a raft foundation at intervals and is used for supporting and connecting a lower layer steel bar and an upper layer steel bar in the raft foundation, and the shear assembly comprises:

the two supporting pieces are oppositely arranged and vertically supported on the cushion layer, the vertical section of each supporting piece is X-shaped, and each supporting piece is arranged on the lower layer of steel bars in a penetrating manner and the top of each supporting piece is bound with the upper layer of steel bars; and

the drawknot is connected to the connecting rod between two opposite support pieces, and the connecting rod is located between the upper layer reinforcing steel bar and the lower layer reinforcing steel bar.

According to the anti-shearing assembly, the vertical supporting pieces are arranged on the cushion layer, the connecting rods are connected between the two opposite supporting pieces in a pulling mode, and then the upper-layer steel bars can be bound on the top of the supporting pieces, so that the supporting pieces have the function of connecting and supporting the upper-layer steel bars and the lower-layer steel bars.

The shearing resistant assembly of the invention is further improved in that the support comprises a plurality of arched supporting rods, the middle parts of the supporting rods are bent outwards, and the bending parts of the supporting rods are mutually close and fixedly connected to form the support in a splicing mode.

The shear assembly of the present invention is further improved in that the strut includes a first vertical portion vertically installed to the mat, a first inclined portion obliquely and obliquely connected to the first vertical portion, an offset portion vertically connected to the first inclined portion, a second inclined portion obliquely and obliquely connected to the offset portion, and a second vertical portion vertically connected to the second inclined portion, the second inclined portion having an opposite inclination direction to the first inclined portion, and the second vertical portion being in a straight line with the first vertical portion;

the support pieces are formed by the mutual approaching and fixed connection of the offset parts of a plurality of supporting rods.

The shearing resistant assembly is further improved in that the support rod is of an integral structure and is formed by bending a twisted steel bar.

The shearing assembly of the invention is further improved in that the length of the first vertical part is matched with the height of the lower layer of steel bars, and the length of the second vertical part is matched with the height of the upper layer of steel bars.

The shearing assembly of the invention is further improved in that the support is formed by splicing two or four supporting rods.

The shearing assembly is further improved in that the shearing assembly further comprises fixing seats fixed at two ends of the supporting rod, and the supporting rod is fixedly connected with the cushion layer or the upper layer of steel bars through the fixing seats.

The shearing resistant assembly is further improved in that the fixed seat comprises a fixed plate and a sleeve which is fixed on the fixed plate and matched with the support rod, and the sleeve is provided with an internal thread;

the supporting rod is provided with an external thread corresponding to the sleeve and is fixedly connected with the fixed seat by screwing the supporting rod on the sleeve.

The shearing resistant assembly is further improved in that a horizontal plate is paved on the connecting rod to form a construction pavement.

The invention provides a construction method of a shear assembly, which comprises the following steps:

providing the shear assembly, and enabling the support piece to penetrate through the lower layer of steel bars and be supported on the cushion layer;

the connecting rod is connected between the two opposite supporting pieces in a pulling mode, and a horizontal plate is laid on the connecting rod to form a construction pavement;

binding and connecting an upper layer steel bar at one end of the support piece far away from the cushion layer by using the construction walkway;

and removing the horizontal plates and pouring concrete on the cushion layer to form a raft foundation, so that the upper-layer steel bars, the lower-layer steel bars and the shearing assemblies are all embedded in the raft foundation.

Drawings

FIG. 1 is a schematic view of the overall construction of a shear assembly according to the present invention.

FIG. 2 is an enlarged schematic view of the strut portion of the shear assembly of the present invention.

FIG. 3 is an enlarged view of the anchor portion of the shear assembly of the present invention.

FIG. 4 is a bottom view of one embodiment of a shear assembly of the present invention.

FIG. 5 is a bottom view of another embodiment of a shear assembly of the present invention.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

Referring to fig. 1, the invention provides a shear assembly and a construction method thereof, wherein vertical support members are arranged on a cushion layer, connecting rods are connected between the two opposite support members in a pulling manner, and upper-layer steel bars can be bound on the tops of the support members, so that the support members have the function of connecting and supporting the upper-layer steel bars and the lower-layer steel bars, after a raft foundation is poured and formed, the shear assembly is embedded in the raft foundation, the problem of poor anti-shear capability of the raft foundation is solved, the anti-shear capability of the raft foundation is improved, the installation is rapid, the construction efficiency is improved, and the construction quality is ensured. The shear assembly of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic view illustrating an overall structure of a shear module according to the present invention. The shear assembly of the present invention will now be described with reference to FIG. 1.

As shown in fig. 1, the shear assembly of the present invention is supported on a bedding layer of a raft foundation at intervals and used for supporting and connecting a lower layer of reinforcing bars 22 and an upper layer of reinforcing bars 21 in the raft foundation, and comprises:

the two support pieces are oppositely arranged and vertically supported on the cushion layer, the vertical section of each support piece is X-shaped, each support piece penetrates through the lower-layer steel bar 22, and the top of each support piece is bound with the upper-layer steel bar 21; and

the tie is connected to the tie bar 12 between the opposite supports, and the tie bar 12 is positioned between the upper and lower reinforcing bars 21 and 22.

Further, horizontal plates are laid on the connecting rods 12 to form a construction packway for construction workers to pass through, and the construction packway can be used for construction in a raft foundation to be poured.

Preferably, the shear assemblies are supported on the bedding course in an array manner, so that the horizontal plates are transversely and longitudinally connected to form a communicated operating platform, constructors can walk on the operating platform for construction and convey construction materials, and the raft foundation is conveniently constructed.

As a preferred embodiment of the present invention, referring to fig. 2, the supporting member includes a plurality of supporting rods 11 having an arch shape, the middle portions of the supporting rods 11 are bent outward, and the bent portions of the supporting rods 11 are close to each other and fixedly connected to each other to form the supporting member.

Specifically, the strut 11 includes a first vertical portion 111 vertically installed to the mat, a first inclined portion 112 obliquely and obliquely connected to the first vertical portion 111, an offset portion 113 vertically connected to the first inclined portion 112, a second inclined portion 114 obliquely and obliquely connected to the offset portion 113, and a second vertical portion 115 vertically connected to the second inclined portion 114, the second inclined portion 114 having an opposite inclination direction to the first inclined portion 112, and the second vertical portion 115 being aligned with the first vertical portion 111;

the offset parts 113 of the plurality of supporting rods 11 are close to each other and fixedly connected to form a support, the first inclined part 112 and the second inclined part 114 can increase the shear resistance of the raft foundation, the vertical section of the support formed by the plurality of supporting rods 11 is X-shaped, the first inclined part 112 and the first vertical part 111 can stably support the offset parts 113, and the second inclined part 114 and the second vertical part 115 can increase the contact area with the upper-layer steel bars 21, so that the upper-layer steel bars 21 are stably installed on the support, and the shape of the supporting rods 11 can further increase the anti-shear capacity of the raft foundation.

Preferably, the support rod 11 is an integral structure formed by bending a twisted steel bar.

Specifically, the length of the first vertical portion 111 matches with the height of the lower-layer steel bar 22, and the length of the second vertical portion 115 matches with the height of the upper-layer steel bar 21, so that the first vertical portion 111 and the second vertical portion 115 can smoothly penetrate through the corresponding lower-layer steel bar 22 and the corresponding upper-layer steel bar 21.

Preferably, as shown in fig. 4 and 5, the support member is formed by two or four struts 11.

Further, as shown in fig. 3, the steel plate support further includes fixing seats 13 fixed at two ends of the support rod 11, and the support rod 11 is fixedly connected with the cushion layer or the upper layer steel bar 21 through the fixing seats 13.

Specifically, the fixing seat 13 includes a fixing plate 131 and a sleeve 132 fixed to the fixing plate 131 and matched with the supporting rod 11, and the sleeve 132 is provided with an internal thread;

the supporting rod 11 is provided with an external thread corresponding to the sleeve 132, and the supporting rod 11 is screwed in the sleeve 132 to be fixedly connected with the fixed seat 13.

The specific implementation method of the invention is as follows:

pouring a cushion layer at the position of the raft foundation to be formed, binding a lower layer of steel bars 22 on the cushion layer, and fixedly installing a fixed seat 13 on the cushion layer so that the fixed plate 131 is fixed on the cushion layer;

screwing the support rods 11 into the sleeves 132 to be fixedly connected to the fixed seat 13, wherein the first vertical parts 111 of the support rods 11 penetrate through the lower-layer steel bars 22, and the offset parts 113 of two or four support rods 11 are fixedly connected to form a support piece with an X-shaped vertical section;

a connecting rod 12 is connected between the two opposite supporting pieces in a pulling mode, horizontal plates are laid on the connecting rod 12, the horizontal plates are spliced to form a construction fairway, and constructors can walk on the construction fairway for construction;

by utilizing the construction packway, the fixed seat 13 is fixed at one end of the supporting rod 11 far away from the cushion layer, the upper-layer steel bar 21 is bound at the corresponding end part of the supporting rod 11, and the second vertical part 115 is arranged in the upper-layer steel bar 21 in a penetrating way;

and removing the horizontal plates, pouring concrete on the cushion layer to form a raft foundation, and embedding the upper-layer steel bars 21, the lower-layer steel bars 22 and the shear assemblies in the raft foundation.

The invention also provides a construction method of the shear assembly, which comprises the following steps:

providing the shear assembly, and enabling the support member to penetrate through the lower layer steel bar 22 and be supported on the cushion layer;

connecting the connecting rod 12 between the two opposite supporting pieces in a pulling manner, and laying a horizontal plate on the connecting rod 12 to form a construction pavement;

binding and connecting an upper layer steel bar 21 on one end of the support piece far away from the cushion layer by using the construction packway;

and removing the horizontal plates and pouring concrete on the cushion layer to form a raft foundation, so that the upper-layer steel bars 21, the lower-layer steel bars 22 and the shear assemblies are all embedded in the raft foundation.

The operation mode of the practical implementation of the construction method provided by the invention is as follows:

pouring a cushion layer at the position of the raft foundation to be formed, binding a lower layer of steel bars 22 on the cushion layer, and fixedly installing a fixed seat 13 on the cushion layer so that the fixed plate 131 is fixed on the cushion layer;

screwing the support rods 11 into the sleeves 132 to be fixedly connected to the fixed seat 13, wherein the first vertical parts 111 of the support rods 11 penetrate through the lower-layer steel bars 22, and the offset parts 113 of two or four support rods 11 are fixedly connected to form a support piece with an X-shaped vertical section;

a connecting rod 12 is connected between the two opposite supporting pieces in a pulling mode, horizontal plates are laid on the connecting rod 12, the horizontal plates are spliced to form a construction fairway, and constructors can walk on the construction fairway for construction;

by utilizing the construction packway, the fixed seat 13 is fixed at one end of the supporting rod 11 far away from the cushion layer, the upper-layer steel bar 21 is bound at the corresponding end part of the supporting rod 11, and the second vertical part 115 is arranged in the upper-layer steel bar 21 in a penetrating way;

and removing the horizontal plates, pouring concrete on the cushion layer to form a raft foundation, and embedding the upper-layer steel bars 21, the lower-layer steel bars 22 and the shear assemblies in the raft foundation.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.