CN207714499U

CN207714499U - A kind of Precast Concrete Frame with cantilever shoulder

Info

Publication number: CN207714499U
Application number: CN201720269893.9U
Authority: CN
Inventors: 潘亮
Original assignee: Hebei University of Engineering
Current assignee: Hebei University of Engineering
Priority date: 2017-03-20
Filing date: 2017-03-20
Publication date: 2018-08-10
Anticipated expiration: 2027-03-20

Abstract

The utility model discloses a kind of Precast Concrete Frame with cantilever shoulder, including precast concrete column (1) and precast concrete beam (2), the precast concrete column (1) is equipped with cantilever shoulder (3), cantilever shoulder (3) is connected with the notch of precast concrete beam (2) overlap joint, overlapping part setting makes high-strength bolt (6) run through and fasten through the steel sleeve (5) of high-strength bolt (6)；Damping spring (4) is set between the cantilever shoulder (3) and beam notch；The presstressed reinforcing steel (7) runs through precast concrete column (1) and precast concrete beam (2) by the way that reserving hole channel (8) is horizontal, and carries out tensioning, anchoring using anchorage (9).The utility model structure construction is convenient, simple and practical, and structural seismic performance significantly improves, and can effectively dissipate seismic energy, meets frame entirety stabilization.

Description

A kind of Precast Concrete Frame with cantilever shoulder

Technical field：

The utility model belongs to structural engineering field, more particularly to a kind of precast concrete frame with cantilever shoulder Structure.

Background technology：

Precast concrete is as a kind of structure type meeting industrialized production, and more traditional cast-in-place structural is more Energy conservation and environmental protection has outstanding feature and advantage, is widely applied in developed countries and regions such as America and Europe, Japan.In recent years Come, with the raising of the tremendous development and living standards of the people of China's economy, building industrialization gradually becomes the hair of building industry Direction and inexorable trend are opened up, development precast concrete system has boundless foreground.

To meet the anti-seismic performance requirement of precast concrete, when the splicing of precast concrete site operation is installed, Connection method and reliability between its prefabricated component become the key for determining precast concrete engineering successful application.With it is existing Pouring concrete frame structure is compared, precast concrete frame joint connection structure ununified design method and theoretical calculation side Method and design specification, joint structure is complicated, lacks system research to whole structural stability.Therefore, precast concrete frame Structure type still requires study exploitation.

Utility model content：

The utility model uses for reference the structure of domestic and international pre-fabricated one for defect existing for current pre-fabricated one It makes, the loading characteristic and Energy Dissipation Mechanism of analytical framework connection, proposes that a kind of construction is convenient, economical and practical, built suitable for assembled A kind of Precast Concrete Frame with cantilever shoulder built.

A kind of Precast Concrete Frame with cantilever shoulder provided by the utility model, including precast concrete column And precast concrete beam, the cantilever shoulder of precast concrete column are connected with precast concrete beam notch overlap joint, overlapping part device Through the steel sleeve of high-strength bolt, high-strength bolt is made to run through and fasten；Damping bullet is set between the cantilever shoulder and beam notch Spring pours the polyester fiber mortar of 15mm thickness on the contact surface of cantilever shoulder and beam notch.The cantilever shoulder can transmit Larger vertically and horizontally counter-force avoids concentrated force is excessive from damaging lower body component by pressure；Cantilever shoulder is close by design calculating requirement configuration The reinforcing bar of collection, steel bar arrangement should be harmonious with the direction of principal tensile stress, to prevent concrete cracking.The precast concrete column Be equipped with the reserving hole channel through presstressed reinforcing steel on precast concrete beam, presstressed reinforcing steel is by reserving hole channel level through prefabricated Concrete column and precast concrete beam, and in end tensioning, anchoring are carried out using anchorage.

The beneficial effects of the utility model are：The utility model structure construction is convenient, economical and practical, can pass through prestressing force The reinforcement mode of muscle makes node that there is self-resetting capability, structural seismic performance to effectively improve in earthquake；The cunning that steel bushing provides Structure effective earthquake energy in earthquake can be made by moving the flexible deformation in path and damping spring, ensure the whole of frame structure Body stability.

Description of the drawings：

Fig. 1 is the frame structure drawing of the utility model；

In Fig. 1,1 is precast concrete column, and 2 be precast concrete beam, and 3 be cantilever shoulder, and 4 be damping spring, and 5 be steel bushing Pipe, 6 be high-strength bolt, and 7 be presstressed reinforcing steel, and 8 be reserving hole channel, and 9 be anchorage.

Specific implementation mode：

This practicality is described further below in conjunction with the embodiment shown in that figure.

As shown in Figure 1, a kind of Precast Concrete Frame with cantilever shoulder provided by the utility model includes prefabricated Concrete column 1, precast concrete beam 2, cantilever shoulder 3, damping bullet, 4, steel sleeve 5, high-strength bolt 6, presstressed reinforcing steel 7, preformed hole Road 8, anchorage 9.

The assemble sequence of the utility model is as follows：1. lifting and positioning precast concrete column 1；2. precast concrete beam 2 Notch be shelved on cantilever shoulder 3 and positioned, be aided with temporary support, assembly forms " ten " font；3. in cantilever shoulder 3 Damping spring 4 is installed between beam notch；4. the device steel bushing 5 on cantilever shoulder 3 and beam notch, simultaneously through high-strength bolt 6 It tightens about to the half for designing prestretching force value；5. presstressed reinforcing steel 7 is horizontal through precast concrete column 1 and pre- by reserving hole channel 8 Beams of concrete 2 processed；6. pouring the polyester fiber mortar of 15mm thickness on the contact surface of cantilever shoulder 3 and beam notch；7. waiting for mortar After reaching some strength, in beam-ends classification by root tensioned prestressing bar 7, until the control stress for prestressing of design, be used in combination anchorage 9 into Row anchoring；8. high-strength bolt 6 is screwed to design pretension.

The utility model is simple and practical, easy for construction, and structural seismic performance significantly improves, and can effectively dissipate seismic energy Amount meets frame entirety stabilization, is conducive to the development for pushing assembled architecture.Above-described embodiment is only the preferable of the utility model Embodiment is not intended to limit the utility model, and within the spirit and principle of the utility model, the improvement made and is repaiied Changing etc. should be included within the novel protection domain of this application.

Claims

1. a kind of Precast Concrete Frame with cantilever shoulder, which is characterized in that the frame structure includes precast concrete Column and precast concrete beam, precast concrete column are equipped with cantilever shoulder, and the notch of cantilever shoulder and precast concrete beam overlaps phase Even, overlapping part device runs through the steel bushing of high-strength bolt, and high-strength bolt is made to run through and fasten；Between cantilever shoulder and beam notch Damping spring is set；The polyester fiber mortar of 15mm thickness is poured on the contact surface of cantilever shoulder and beam notch；Presstressed reinforcing steel is logical It crosses reserving hole channel level and runs through precast concrete column and precast concrete beam, and tensioning, anchoring are carried out using anchorage.

2. a kind of Precast Concrete Frame with cantilever shoulder as described in claim 1, which is characterized in that the damping The 2mm thickness thermoplastic vulcanizates layers that spring is wrapped up by metal coil spring and its outside collectively form.

3. a kind of Precast Concrete Frame with cantilever shoulder as described in claim 1, which is characterized in that the steel bushing Pipe uses section to be round poroid, and internal and external walls wrap up the high-strength rubber layer of 5mm thickness.