CN201605661U

CN201605661U - Concretion connecting structure of supporting structure and later concrete pouring beam

Info

Publication number: CN201605661U
Application number: CN2009203142757U
Authority: CN
Inventors: 刘宜江; 邓中华
Original assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Current assignee: Guiyang Aluminum Magnesium Design and Research Institute Co Ltd
Priority date: 2009-11-06
Filing date: 2009-11-06
Publication date: 2010-10-13
Anticipated expiration: 2019-11-06

Abstract

The utility model discloses a concretion connecting structure of a supporting structure and a later concrete pouring beam, which comprises the supporting structure (1) and the later concrete pouring beam (4), wherein a buried plate (2) is pre-cast in the supporting structure (1); a steel bracket (3) is welded on the buried plate (2); and longitudinal bars of the concrete beam (4) are anchored on the steel bracket (3) by welding. The steel plate is pre-cast in the supporting structure, the steel bracket is welded on the steel plate, and the longitudinal bars of the concrete beam are anchored on the steel bracket by welding, therefore, the steel bracket is utilized as an intermediate force-transmitting member and transmits beam-end bending moment and shearing force simultaneously, thus reducing the difficulty of construction, and effectively solving the problem of transmission of the beam-end node bending moment and the shearing force of the later concrete pouring beam; and the concretion connection structure has the advantages of reasonable force transmission, simple structure, convenient construction, accurate positioning of reinforced steel bars and the like.

Description

The fixed syndeton of a kind of supporting construction and back pouring concrete beam

Technical field

The utility model relates to the fixed syndeton of a kind of supporting construction and back pouring concrete beam, belongs to industry and civilian construction technical field.

Background technology

The fixed connection of concrete beam end is that at present industry makes a kind of connected mode with the most use with the civilian construction field, and fixed connection can be transmitted moment of flexure, shearing and the axle power of the concrete beam that various effects cause.Under the same conditions, it saves steel and amount of concrete than being articulated and connected, and has the tangible economic advantages and the wider scope of application; The indeterminate concrete beam of the fixed connection in two ends can not lose supporting capacity because certain retrains destroyed, has big defence capability.And the fixed connection in concrete beam end is favourable to the stability and the shock resistance of total.But, in practice of construction, because the restriction of various different conditions such as job practices, engineering time, working procedure, construction plant, especially adopt the various supporting constructions of synovial membrane construction and the connecting portion of each floor concrete beam, the concrete beam of the fixed connection in end and its supporting construction often can not be built simultaneously, the problem that this anchoring of taking appropriate construction measure to solve beam steel with regard to needs is connected with new-old concrete guarantees that joint structure can satisfy the requirement of fixed connection.Two kinds of ways commonly used are in the construction at present: first kind of way: the reinforcing bar 2 of the vertical muscle coupling of reservation and concrete beam in supporting construction 1, treat supporting construction construction finish after with reserved steel bar dig out, alignment, be connected with the vertical muscle welding or the overlap joint of concrete beam 3, and, see accompanying drawing 4 with new-old concrete contact surface processing after-pouring concrete beam.This way has two drawbacks: one, reserved steel bar can make that the reinforcing bar in the supporting construction can be very crowded in supporting construction, the concrete vibration quality be cannot say for sure to demonstrate,prove, the reserved steel bar difficulty is located, error is big, and the workload that the later stage is dug out reserved steel bar, alignment and contact surface processing is bigger; Two, the ability of the new-old concrete contact surface Transfer of Shear of cast is had a greatly reduced quality by stages, and this has weakened the intensity of supporting construction to a certain extent.Second kind of way: on supporting construction 1, reserve hole 2, when waiting to construct concrete beam 3 the vertical muscle of beam stretched into the hole anchoring and each structural element watered and build up an integral body, as accompanying drawing 6.Though this way is Transfer of Shear effectively, but the anchoring of beam longitudinal reinforcement usually can not be satisfied standard and structure requirement, and because the difference of creeping and shrinking of new-old concrete, the intensity that will cause the new-old concrete junction is less than concrete actual design intensity, make the intensity of the intensity of connected node less than structural element, will cause destruction of a node prior to component damage, this connected node destroys earlier and does not allow to occur in design.

The utility model content

Technical problem to be solved in the utility model is to provide the fixed syndeton of a kind of supporting construction of constructing rationally, being convenient to construct with back pouring concrete beam.

For solving the problems of the technologies described above the technical solution of the utility model: the fixed syndeton of a kind of supporting construction and back pouring concrete beam.Its formation comprises supporting construction and back pouring concrete beam, is embedded with buried plate on described supporting construction, is welded with steel corbel on buried plate, and the vertical muscle of concrete beam is anchored on the steel corbel by welding.

In the fixed syndeton of above-mentioned supporting construction and back pouring concrete beam, be that the vertical muscle end of concrete beam is anchored on the steel corbel by welding.

In the fixed syndeton of aforesaid supporting construction and back pouring concrete beam, on steel corbel, be welded with additional shear reinforcement.

The beneficial effects of the utility model: compared with prior art, the utility model is by pre-embedded steel slab on supporting construction, and on pre-embedded steel slab the weldable steel bracket, the concrete beam longitudinal reinforcement is anchored on the steel corbel by welding, welding adds shear reinforcement on steel corbel in addition, utilize steel corbel to transmit beam-ends moment of flexure and shearing simultaneously as middle Force transmission parts, embedded board neither can weaken the intensity of supporting construction on supporting construction, does not increase the supporting construction difficulty of construction again; The purpose of weldable steel bracket is the shearing of concrete beam is effectively passed to supporting construction by steel corbel and attachment weld on embedded board; The concrete beam longitudinal reinforcement is welded on the steel corbel and the moment of flexure of concrete beam effectively can be passed to supporting construction, and the reinforcing bar location is accurate and convenient; Can more effectively the shearing on the concrete beam be passed to supporting construction by steel corbel at the additional shear reinforcement of welding on the steel corbel.The utility model is when guaranteeing the structural system bulk strength, neither increase difficulty of construction, effectively solved simultaneously the problem that back pouring concrete beam-ends node moment of flexure and shearing transmit again, have power transmission rationally, advantage such as simple structure, easy construction, reinforcing bar location be accurate.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the 1-1 sectional view of Fig. 1;

Fig. 3 is a work progress schematic diagram of the present utility model;

Fig. 4 is the work progress schematic diagram of supporting construction and fixed beam in the prior art;

Fig. 5 is the 2-2 sectional view of Fig. 4;

Fig. 6 is the another kind of work progress schematic diagram of supporting construction and fixed beam in the prior art;

Fig. 7 is the 3-3 sectional view of Fig. 6.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

The specific embodiment

Embodiment.As shown in Figure 1, 2, comprise supporting construction 1 and back pouring concrete beam 4, on supporting construction 1, be embedded with buried plate 2, on buried plate 2, be welded with steel corbel 3, the vertical muscle end of concrete beam 4 is anchored on the steel corbel 3 by welding, is welded with additional shear reinforcement 5 on steel corbel 3.Concrete beam 4 is bearing on the supporting construction 1 by steel corbel 3.During construction, as shown in Figure 3, when cast supporting construction 1, buried plate 2 is embedded in the supporting construction 1, treat after supporting construction 1 reaches predetermined strength steel corbel 3 to be welded on the buried plate 2, the vertical muscle and the stirrup of colligation concrete beam 4 then, and the vertical muscle end of concrete beam 4 is anchored on the steel corbel 3 by welding, will add shear reinforcement 5 again and be welded on the steel corbel 3, last fluid concrete beam 4; When fluid concrete beam 4, should be specifically noted that the concrete vibrating in steel corbel 3 scopes closely knit.

Embodiment of the present utility model is not limited to the foregoing description, all belongs within the protection domain of the present utility model in the various variations of making under the prerequisite that does not break away from the utility model aim.

Claims

1. the fixed syndeton of a supporting construction and back pouring concrete beam, comprise supporting construction (1) and back pouring concrete beam (4), it is characterized in that: on described supporting construction (1), be embedded with buried plate (2), be welded with steel corbel (3) on buried plate (2), the vertical muscle of concrete beam (4) is anchored on the steel corbel (3) by welding.

2. the fixed syndeton of supporting construction according to claim 1 and back pouring concrete beam, it is characterized in that: the vertical muscle end of described concrete beam (4) is anchored on the steel corbel (3) by welding.

3. the fixed syndeton of supporting construction according to claim 1 and back pouring concrete beam is characterized in that: be welded with additional shear reinforcement (5) on described steel corbel (3).