CN207244839U

CN207244839U - A kind of Self-resetting precast concrete concrete frame joint

Info

Publication number: CN207244839U
Application number: CN201720214124.9U
Authority: CN
Inventors: 潘亮
Original assignee: Hebei University of Engineering
Current assignee: Hebei University of Engineering
Priority date: 2017-03-07
Filing date: 2017-03-07
Publication date: 2018-04-17
Anticipated expiration: 2027-03-07

Abstract

The utility model discloses a kind of Self-resetting precast concrete concrete frame joint, belong to building field, hidden bracket is set on the precast concrete column (1), and the notch of precast concrete beam (2) is overlapped on hidden bracket, forms prefabricated bean column node.The pre-buried beam-ends steel plate (8) in precast concrete beam (2) end, precast concrete column (1) is close to the pre- buried column side steel plate (9) in beam side.The precast concrete beam (2) reserves the hole of presstressed reinforcing steel duct (4) and high-strength bolt (5) with precast concrete column (1), beam, column and energy consumption angle steel (3), junction steel plate (7) are stitched together by presstressed reinforcing steel (6) and high-strength friction-type bolt (5), beam column is formed entirety.The utility model has runback bit function, and the anti-seismic performance of bean column node can effectively improve, and not only can guarantee that small shake lower structure is stablized, but also can realize that big shake lower structure large deformation occurs but do not destroy, and reaches the ideal effect of structure Self-resetting after shake.

Description

A kind of Self-resetting precast concrete concrete frame joint

Technical field：

The utility model design belongs to building structure technology field, and in particular to precast reinforced concrete beam column structure system In, a kind of Self-resetting precast concrete concrete frame joint.

Background technology：

Prefabricated assembled concrete structure is as a kind of structure type for meeting industrialized production, more traditional cast-in-place knot Structure more energy conservation and environmental protection, has outstanding feature and advantage, has obtained extensively should in developed countries and regions such as America and Europe, Japan With.In recent years, with China's economy tremendous development and living standards of the people raising, building industrialization progressively become building production The developing direction and inexorable trend of industry, development precast concrete system have boundless prospect.

The prestressing force Self-resetting concrete structure of " the ductility connection " that is formed by connection modes such as presstressed reinforcing steels, mainly Advantage is that the nonlinear deformation of structure is concentrated on join domain, and other parts keep elasticity substantially, and due to presstressed reinforcing steel Rebound effect, structure residual deformation very little, it can be achieved that after shake structure function rapid recovery.But presstressed reinforcing steel only serves elasticity The effect of Self-resetting, the simple Structural Energy Dissipation scarce capacity using presstressed reinforcing steel assembling, also needs to energy-consuming parts in terms of energy consumption Participation, and there is the problems such as consuming energy undesirable, construction inconvenience in energy-consuming parts or damper, once Structural Energy Dissipation failure easily causes The progressive failure of structure, or even the badly damaged of precast concrete is caused, therefore it is always prestressing force Self-resetting to consume energy The research hotspot of concrete structure, the bean column node form of pre-fabricated one still require study exploitation.

Utility model content：

This practicality for existing prefabricated node technology there are the defects of, use for reference the construction of domestic and international Self-resetting bean column node, The loading characteristic and Energy Dissipation Mechanism of analysis node, there is provided a kind of convenient practicality for being suitable for assembled architecture, type of attachment are simple And the concrete frame joint with self-resetting capability：

Self-resetting precast concrete concrete frame joint provided by the utility model, including precast concrete column, it is prefabricated Beams of concrete, consume energy angle steel, reserving hole channel, high-strength bolt, presstressed reinforcing steel, junction steel plate, beam-ends steel plate, column side steel plate, anchorage.

The beam column is prefabricated, and hidden bracket is wherein set in precast concrete column, due to laterally greatly across holding on direction The transmission of the weight joist support load most vertical load of floor, therefore using vertical supporting and use of the hidden bracket as the construction stage The shearing resistance support in stage, it can be ensured that the security of construction stage and service stage structure.The notch of the precast concrete beam is taken It is connected on hidden bracket and forms node.The pre-buried beam-ends steel plate of precast concrete beam end, concrete column is close to the pre- buried column in beam side Side steel plate, it can ensure that local crushing will not occur for concrete members, while easy to use high strength exploitation.

The energy consumption angle steel uses equal leg angle, and positioned at beam top, its perpendicular limb passes through high-strength bolt and prefabricated hidden bracket column It is connected, its horizontal limb is connected by high-strength bolt with prefabricated block interface.The junction steel plate uses steel plate, positioned at beam lower part, It is connected by high-strength bolt with beam and hidden bracket column.The frictional force that energy consumption angle steel, junction steel plate and the beam-ends pressure produce can Shear force within the beam end is undertaken, increases the unnecessary degree of node.Presstressed reinforcing steel duct and high-strength bolt hole are reserved at beam and bean column node, Presstressed reinforcing steel is not in the milk in duct, by presstressed reinforcing steel and high-strength friction-type bolt by beam, column and energy consumption angle steel, junction steel plate It is stitched together to form node.

The beneficial effects of the utility model are：The utility model not only can guarantee that small shake lower structure was stablized, but also can realize big There is large deformation but does not destroy in shake lower structure, and reaches the ideal effect of structure Self-resetting after shake.The utility model reality simple in structure With, can effectively improve the anti-seismic performance of bean column node by the reinforcement mode of presstressed reinforcing steel, make node in earthquake have from Reset capability；The angle steel and junction steel plate as energy-consuming parts, can in earthquake earthquake energy, and be easy to after shake Replace；Prefabricated beam column contact surface pre-embedded steel slab, crushes beneficial to preventing that concrete members generation is local, while easy to use high intensity It is bolted.

Brief description of the drawings：

Fig. 1 is the bean column node schematic diagram of the utility model；

In Fig. 1,1 is precast concrete column, and 2 be precast concrete beam, and 3 be energy consumption angle steel, and 4 be reserving hole channel, and 5 be high-strength Bolt, 6 be presstressed reinforcing steel, and 7 be junction steel plate, and 8 be beam-ends steel plate, and 9 be column side steel plate, and 10 be anchorage.

Pay attention to：To make drawing clearly be not drawn into the other arrangements of reinforcement of beam column, other arrangements of reinforcement should be determined by design.

Embodiment：

Below in conjunction with attached drawing illustrated embodiment, the present invention is described further.

As shown in Figure 1, the utility model Self-resetting precast concrete concrete frame joint is the side of assembling frame structure Span centre column, including the precast concrete column 1 of hidden bracket is set, precast concrete beam 2, consume energy angle steel 3, reserving hole channel 4, high-strength spiral shell Bolt 5, presstressed reinforcing steel 6, junction steel plate 7, beam-ends steel plate 8, column side steel plate 9, anchorage 10.

The assemble sequence of the utility model is as follows：1. precast concrete hidden bracket column 1 is lifted；2. precast concrete beam 2 Notch be shelved on the hidden bracket of prefabricated post 1 and positioned, beam-ends steel plate 8 is stitched together with column side steel plate 9, be aided with Temporary support, assembly form " ten " font；3. bolt hole position is directed at, installation energy consumption angle steel 3 and junction steel plate 7.Energy consumption angle Steel 3 uses equal leg angle, and positioned at beam top, its perpendicular limb is connected by high-strength bolt 5 with prefabricated hidden bracket column 1, its horizontal limb leads to High-strength bolt 5 is crossed with prefabricated block interface 2 to be connected.Junction steel plate 7 uses steel plate, positioned at beam lower part, passes through high-strength bolt 5 and beam 2 are connected with hidden bracket column 1.Tighten the half that high-strength bolt 5 about designs prestretching force value；4. run through unbonded prestressing tendon 6；5. Beam-ends classification is by root tensioned prestressing bar 6, until the control stress for prestressing designed, and anchored with anchorage 10；6. will connection The high-strength bolt 5 of energy consumption angle steel 3 and junction steel plate 7 is screwed to design pretension, and node is assembled to be completed.

The utility model can be applied in prefabricated components concrete frame structure.The utility model is simple for production, construction party Just it is quick, there are the performance of Self-resetting, energy earthquake energy in earthquake, and the concrete members extent of damage is low, and consume energy structure Part is convenient for changing, and is conducive to promote the development of assembled architecture.Above-described embodiment is only the preferred embodiment of the utility model, and Not to limit the utility model, where within the spirit and principles of the present invention, improvement and modification for being made etc. should all This is included within the new protection domain of this application.

Claims

A kind of 1. Self-resetting precast concrete concrete frame joint, it is characterised in that：Including precast concrete column, precast concrete Beam, consume energy angle steel, reserving hole channel, high-strength bolt, presstressed reinforcing steel, junction steel plate, beam-ends steel plate, column side steel plate, anchorage；It is prefabricated mixed Hidden bracket is set on solidifying earth pillar, the notch of precast concrete beam, which is overlapped on hidden bracket, forms node；Precast concrete beam section For 350 × 450, precast concrete beam and precast concrete column arrangement of reinforcement are configured by design requirement；At precast concrete beam and node Reserved presstressed reinforcing steel duct and high-strength bolt hole, by unbonded prestressing tendon and high-strength friction-type bolt by beam, column and consumption Energy angle steel, junction steel plate are stitched together to form node.
A kind of 2. Self-resetting precast concrete concrete frame joint as claimed in claim 1, it is characterised in that the energy consumption angle Steel uses equal leg angle, and positioned at beam top, its perpendicular limb is connected by high-strength bolt with prefabricated hidden bracket column, its horizontal limb passes through height Strength bolt is connected with prefabricated block interface；The junction steel plate uses steel plate, positioned at beam lower part, by high-strength bolt and beam and secretly Bracket is connected；Installation energy consumption angle steel and junction steel plate are alternatively arranged as construction rank as dissipative cell, energy consumption angle steel and junction steel plate The support of section and the bending resistance of service stage, shearing resistance component.
3. a kind of Self-resetting precast concrete concrete frame joint as claimed in claim 1, it is characterised in that described prefabricated mixed The pre-buried beam-ends steel plate in end of solidifying Tu Liang, in precast concrete column with the pre- buried column side steel plate of beam contact surface；The beam-ends steel plate and The tensile strength of column side steel plate is not less than 300MPa, and beam-ends steel plate and column side steel plate can make concrete members that local pressure will not occur It is broken, while easy to use high strength exploitation.
4. a kind of Self-resetting precast concrete concrete frame joint as claimed in claim 1, it is characterised in that in concrete Native beam beam-ends implements tensioning using anchorage to unbonded prestressing tendon；The presstressed reinforcing steel uses tensile strength as 1600MPa- 15.2 steel strand wires of Φ of 1800Mpa, the elongation under the maximum, force of presstressed reinforcing steel are not less than 5%, its soap-free emulsion polymeization part by The gum sleeve that lubricating oil is applied within steel strand wires set is realized.
A kind of 5. Self-resetting precast concrete concrete frame joint as claimed in claim 1, it is characterised in that the energy consumption The connection of angle steel, junction steel plate and beam, column uses 10.9 grades of high-strength friction-type bolts of Φ 22.