CN218067057U

CN218067057U - Building structure beam column side node pseudo-static force anti-seismic test loading device

Info

Publication number: CN218067057U
Application number: CN202222322442.0U
Authority: CN
Inventors: 陈宏宇; 王飞; 康现栋; 赵梓宏; 吕潇然; 张晨
Original assignee: Beijing Earthquake Administration
Current assignee: Beijing Earthquake Administration
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-12-16
Anticipated expiration: 2032-09-01

Abstract

The utility model provides a building structure beam column side node pseudo-static force anti-seismic test loading device, which has the improvement point that the structural form of mounting and loading irregular components on a counterforce frame of the pseudo-static force test is redesigned, the device comprises a counterforce frame and a test component, the test component is inverted T-shaped and is mounted on the counterforce frame, and the test component comprises a lower horizontal column and a middle vertical column; the hydraulic lifting device is characterized by further comprising a knife edge hinged support, a first hydraulic jack and a second hydraulic jack, wherein the knife edge hinged support is arranged between the reaction frame and the horizontal column, and horizontally supports and pads the horizontal column to a certain height; the first hydraulic jack is installed on the reaction frame and horizontally loaded towards the end face of the first end of the horizontal column, and the end face of the second end of the horizontal column is restrained and limited by the reaction frame; the second hydraulic jack is mounted on the reaction frame and horizontally loaded towards the side of the vertical column.

Description

Building structure beam column side node pseudo-static force anti-seismic test loading device

Technical Field

The utility model belongs to the technical field of civil engineering building structure test equipment, concretely relates to building structure beam column side node static force shock resistance test loading device.

Background

In the engineering building structure pseudo-static test, when loading frame beam column side node, often with the post vertical placement and exert axial pressure, to the anomalous component of geometry, because focus and centroid do not coincide, pre-buried lifting hook and component installation brought the difficulty for the component when pouring. Meanwhile, the prestressed assembly type beam-column side node is limited by the existence of the anchor at the tensioning end to horizontally place the column on a plane for loading.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a building structure beam column side node static electricity anti-seismic test loading device, its improvement lie in redesign irregular component (especially the type of falling T component) install and the loaded structural style on the counter-force frame of static electricity test.

The utility model adopts the technical scheme as follows: a pseudo-static anti-seismic test loading device for a beam-column side node of a building structure comprises a reaction frame and test components, wherein the reaction frame is a frame consisting of a bottom beam pedestal at the bottom, a right column, a left column and a top cross beam at the upper part, and two knife-edge hinged supports are arranged on the bottom beam pedestal; the test component is arranged on a bottom beam pedestal of the reaction frame in an inverted T shape, and comprises a horizontal column below and a vertical column in the middle;

the hydraulic lifting device is characterized by further comprising a knife edge hinged support, a first hydraulic jack and a second hydraulic jack, wherein the knife edge hinged support is arranged between the reaction frame and the horizontal column, and horizontally supports and pads the horizontal column to a certain height; the first hydraulic jack is installed on the reaction frame and horizontally loaded towards the end face of the first end of the horizontal column, and the end face of the second end of the horizontal column is restrained and limited by the reaction frame; the second hydraulic jack is mounted on the reaction frame and horizontally loaded towards the side of the vertical column.

Two rows of round holes along the vertical direction array are all set up on right side stand and the left stand, first hydraulic jack and second hydraulic jack pass through the bolt fixed mounting who passes the round hole on right side stand or left stand, the round hole is 50mm in proper order at interval in the vertical direction, can adjust the position of first and second hydraulic jack's vertical height through the position that changes the round hole that the bolt passed.

Furthermore, the terminal surface and the locating rack butt of horizontal post second end, the locating rack fixed mounting in right side stand or left stand are inboard.

Furthermore, a first force bearing steel plate is padded on the end face of the first end of the horizontal column, and the end part, far away from the reaction frame, of the first hydraulic jack is connected with the first force bearing steel plate in a force transmission mode through a spherical hinge support. In a similar way, a second force bearing steel plate is padded on the side face of the vertical column, and the end part, far away from the reaction frame, of the second hydraulic jack is connected with the second force bearing steel plate in a force transmission manner through a spherical hinge support.

Horizontal post with still install two locating component between the floorbar pedestal, locating component includes fixed steel sheet and screw rod, fixed steel sheet is including two that are located horizontal post upper surface and floorbar pedestal lower surface respectively, and the screw rod is including being located horizontal post both sides respectively and upper and lower both ends respectively with two fixed steel sheet bolted connection two, through revolving twist and apply with screw rod complex bolt adjusting positioning component horizontal post's pressure.

The utility model discloses technical scheme's advantage lies in:

(1) The loading device can be used in cooperation with a forklift, the test component is turned by 90 degrees and placed on the forklift in an inverted T shape, and then the test component is conveyed and installed on the loading reaction frame with the knife edge hinged support, so that the use of a crane and the requirement on the degree of accurate operation during component installation are reduced to a great extent;

(2) Due to the arrangement of the knife edge hinged support, the prestress assembly type beam-column edge node is lifted by a certain height, the situation that a prefabricated part is placed too low or accidentally collides with a prestress anchor in the installation process is avoided, and the designed prestress of a test node is lost.

Drawings

Fig. 1 is a schematic view of the overall structure of the loading device of the present invention;

fig. 2 is a schematic view of another structure of the loading device according to the present invention;

in the figure: 1. 1-1 part of a reaction frame, 1-2 parts of a bottom beam pedestal, 1-3 parts of a right upright post, 1-4 parts of a left upright post and a top cross beam;

2. the device comprises an inverted T-shaped component, 3, a first hydraulic jack, 4, a second hydraulic jack, 5, a positioning frame, 6, a knife edge hinged support, 7, a spherical hinged support, 8, a first force bearing steel plate, 9, a screw, 10, a fixed steel plate, 11, a second force bearing steel plate, 12 and a round hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the positional or orientational relationship indicated for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic view of the overall structure of the loading device of the present invention, and fig. 2 is a schematic view of another perspective structure of the loading device of the present invention; a building structure beam column side node pseudo-static force anti-seismic test loading device comprises a reaction frame 1, wherein the reaction frame 1 is a frame consisting of a bottom beam pedestal 1-1 at the bottom, a right upright 1-2, a left upright 1-3 and a top cross beam 1-4 at the upper part, and the reaction frame 1 is used for installing an inverted T-shaped component 2 (the T-shaped component of a building is installed in an inverted manner) serving as a test piece and loading the inverted T-shaped component 2; specifically, the inverted T-shaped component 2 is placed on the bottom beam pedestal 1-1 through a knife edge hinged support 6, and the knife edge hinged support 6 is provided with two knife edge hinged supports distributed at the left end and the right end; the left end of the inverted T-shaped member 2 is in limit abutting joint with the end face of a positioning frame 5, the positioning frame 5 is fixedly installed on the inner side of a left upright post 1-3, a first hydraulic jack 3 is installed on the inner side of a right upright post 1-2, the first hydraulic jack 3 is pressed and loaded towards the right end face of the inverted T-shaped member 2, referring to fig. 1, a first bearing steel plate 8 with a shape matched with the right end face of the inverted T-shaped member 2 is padded, and the force application end of the first hydraulic jack 3 is connected with the first bearing steel plate 8 through a spherical hinge support 7, so that pressure is applied to the right end of the inverted T-shaped member 2.

A second hydraulic jack 4 is installed on the inner side of a left upright post 1-3 of the reaction frame 1, referring to fig. 2, a force application end of the second hydraulic jack 4 applies pressure to a side portion of a vertical post of the inverted T-shaped member 2, a second force bearing steel plate 11 is padded on the side portion of the vertical post, the force application end of the second hydraulic jack 4 is connected with the second force bearing steel plate 11 through a spherical hinge support so as to ensure that the second hydraulic jack 4 applies force and loads along the horizontal direction, and similarly, the first hydraulic jack 3 and the second hydraulic jack 4 both transmit pressure through the spherical hinge support so as to be conveniently positioned at a reverse bending point of the test member for loading.

Referring to fig. 2, the horizontal column of the inverted T-shaped member 2 and the bottom beam pedestal 1-1 are positioned and installed by a positioning assembly, specifically, the positioning assembly includes a fixed steel plate 10 and two screws 9, the fixed steel plate 10 includes two blocks respectively located on the upper surface of the horizontal column and the lower surface of the bottom beam pedestal 1-1, the two screws 9 are respectively located on two sides of the horizontal column, the upper end and the lower end of each screw are respectively connected with the two fixed steel plates 10 by bolts, and the pressure applied to the horizontal column by the positioning assembly is adjusted by screwing the bolts. The positioning assemblies comprise two groups which are respectively arranged at two ends of a horizontal column of the inverted T-shaped component 2, and the inverted T-shaped component 2 is horizontally arranged on the reaction frame 1 through the positioning assemblies and the knife edge hinged support 6.

Referring to fig. 2, round holes 12 are uniformly arrayed on the right upright 1-2 and the left upright 1-3 in the vertical direction, preferably, the round holes 12 are arranged in two vertical rows to be matched with steel plate bolts for mounting the first hydraulic jack and the second hydraulic jack, and the round holes 12 are sequentially spaced by 50mm in the vertical direction so as to adjust the height of the hydraulic jacks and realize different span ratios in the static test and the arrangement of beam end reciprocating load points in the pseudo-static test.

Although the specific embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that, on the basis of the technical solutions of the present invention, modifications or variations of various equivalent structures or equivalent flows can be made by those skilled in the art without the need of creative efforts, or the modifications can be directly or indirectly applied to other related technical fields, and still fall within the scope of the present invention.

Claims

1. The pseudo-static anti-seismic test loading device for the side node of the beam column of the building structure is characterized by comprising a reaction frame and a test component, wherein the test component is inversely arranged on the reaction frame in an inverted T shape and comprises a horizontal column at the lower part and a vertical column in the middle;

2. The apparatus of claim 1 further characterized in that said reaction frame is a frame consisting of a bottom sill deck, a right upright, a left upright, and an upper top beam, and said knife-edged hinge support comprises two, each mounted on said sill deck.

3. The device of claim 2, wherein the right upright post and the left upright post are respectively provided with two rows of round holes arrayed along the vertical direction, and the first hydraulic jack and the second hydraulic jack are fixedly arranged on the right upright post or the left upright post through bolts penetrating through the round holes.

4. The device of claim 2, further characterized in that the end surface of the second end of the horizontal post abuts against a locating bracket fixedly mounted inside the right or left upright.

5. The apparatus of claim 3, further characterized in that the circular holes are sequentially spaced 50mm apart in a vertical direction.

6. The device of claim 1, further characterized in that a first force bearing steel plate is padded on the end face of the first end of the horizontal column, and the end part of the first hydraulic jack far away from the reaction frame is in force transmission connection with the first force bearing steel plate through a spherical hinge support.

7. The device of claim 1, further characterized in that the side of the vertical column is padded with a second force bearing steel plate, and the end of the second hydraulic jack far away from the reaction frame is in force-transmission connection with the second force bearing steel plate through a spherical hinge support.

8. The device of claim 2, further characterized in that two positioning assemblies are installed between the horizontal column and the bottom beam pedestal, each positioning assembly comprises a fixed steel plate and a screw, each fixed steel plate comprises two blocks respectively located on the upper surface of the horizontal column and the lower surface of the bottom beam pedestal, each screw comprises two blocks respectively located on two sides of the horizontal column, the upper end and the lower end of each screw are respectively in bolted connection with the two fixed steel plates, and the pressure applied to the horizontal column by screwing the bolt matched with the screw is adjusted by the positioning assemblies.