CN204575284U - Sleeve slurry anchor web member anti-seismic performance pick-up unit - Google Patents

Abstract

The utility model discloses a kind of sleeve slurry anchor web member anti-seismic performance pick-up unit, comprise computing machine, vibrator, shaking table, sleeve, connect base and mass ball, reinforcing bar is provided with in described sleeve, reinforcing bar is in the milk with sleeve and is connected, sleeve upper end is connected with mass ball, sleeve lower end is fixing on a vibration table by connecting base, described sleeve is fixed on by reinforcing bar and connects on base, described computing machine is used for Earthquake occurrence control ripple size sending with Received signal strength to vibrator, described mass ball circular solids, uniform quality, eccentric destruction can not be produced during vibration, the vibration frequency that described shaking table provides is 50Hz to the maximum, the utility model utilizes little shaking table to realize large shock resistance inspection, mass ball provides vibration force, detachable use, whether rapid batch detects slurry anchor connecting material has damage under geological process.

Description

Sleeve slurry anchor web member anti-seismic performance pick-up unit

Technical field

The utility model relates to construction engineering technical field, especially a kind of sleeve slurry anchor web member anti-seismic performance pick-up unit.

Background technology

Building industry industrialization is the inevitable direction of building enterprise's transition and upgrade, also be the only way of Building Trade in China development, as industrialized core content, fabricated construction system technical system whether maturation affects industrialized development, the anti-seismic performance for fabricated construction depends on the connection reliability of vertical reinforcement.Existing connection mainly adopts slurry anchor to connect (sleeve slurry anchor, restriction hoop slurry anchor etc.), at slurry anchor connecting portion, under geological process, connect grouting material and will bear the shearing of anchor connection generation, what tangential movement produced draws repeatedly, the many kinds of force effects such as pressure, grouting material is in complex stress condition, certain damage will be produced after geological process, after causing earthquake like this, the anchor connection performance of reinforcing bar reduces, this influence degree has much on earth, whether affect the security of structure, at present there are no research and report, existing anchor connection detection method only detects the connection tensile property under static load effect, there is significant limitation.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of sleeve slurry anchor web member anti-seismic performance pick-up unit, the anti-seismic performance under inspection slurry anchor material geological process.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

Sleeve slurry anchor web member anti-seismic performance pick-up unit, comprise computing machine, vibrator, shaking table, sleeve and mass ball, reinforcing bar is provided with in described sleeve, reinforcing bar is in the milk with sleeve and is connected, sleeve upper end is connected with mass ball, sleeve lower end is fixing on a vibration table by connecting base, and described sleeve is fixed on by reinforcing bar and connects on base.

Further, described computing machine is used for Earthquake occurrence control ripple size sending with Received signal strength to vibrator.

As preferably, described mass ball circular solids, uniform quality, can not produce eccentric destruction during vibration.

As preferably, the vibration frequency that described shaking table provides is 50Hz to the maximum.

A detection method for sleeve slurry anchor web member anti-seismic performance, detecting step is as follows:

S1: be in the milk in sleeve, forms sleeve slurry anchor, connects computing machine, vibrator, shaking table, sleeve slurry anchor and mass ball, parameters.

S2: power-off after vibration 30s ~ 70s, removes sleeve slurry anchor, and jockey carries out tensile test to sleeve slurry anchor.

S3: if grouting material reinforcing bar is extracted in sleeve, then the damage of this sleeve slurry anchor is serious, is judged to be defective; If reinforcing bar enters yielding stage or breaks, then the tensile test result of tensile test result and contrast groups is contrasted, and then analyze grouting material degree of impairment, judge whether grouting material can meet structural safety needs, whether qualified under geological process.

Further, described contrast groups is the sleeve slurry anchor of the same manufacture craft of employing not being subject to vibration force effect.

Further, described tensile test result is for extracting displacement and Ultimate Tensile power.

The beneficial effects of the utility model are: the utility model utilizes little shaking table to realize large shock resistance inspection, and mass ball provides vibration force, detachably uses, and whether rapid batch detects slurry anchor connecting material has damage under geological process.

Accompanying drawing explanation

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

Fig. 1 is the utility model schematic diagram.

Fig. 2 is the utility model schematic diagram.

In figure: 1, computing machine, 2, vibrator, 3, shaking table, 4, sleeve, 5, mass ball, 6, connect base.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.

As shown in Figure 1, the utility model discloses a kind of sleeve slurry anchor web member anti-seismic performance pick-up unit, comprise computing machine 1, vibrator 2, shaking table 3, sleeve 4, mass ball 5 be connected base 6, reinforcing bar is provided with in described sleeve 4, reinforcing bar and sleeve 4 are in the milk and are connected to form sleeve and starch anchor web member, this sleeve slurry anchor web member can have various ways, do not describe in the present embodiment, sleeve 4 upper end is connected with mass ball 5, sleeve 4 lower end is fixed on shaking table 3 by connecting base 6, described sleeve 4 is fixed on by reinforcing bar and connects on base 6, connected mode is threaded or other connected modes, but no matter which kind of connected mode, all to realize dismountable function, described computing machine 1 is used for Earthquake occurrence control ripple size sending with Received signal strength to vibrator 2, described mass ball 5 circular solids, uniform quality, eccentric destruction can not be produced during vibration, the vibration frequency that described shaking table 3 provides is 50Hz to the maximum.

The step of sleeve slurry anchor web member anti-seismic performance detection method is:

(1) be in the milk in sleeve, form sleeve slurry anchor, connect computing machine, vibrator, shaking table, sleeve slurry anchor and mass ball, parameters;

(2) power-off after vibration 30s ~ 70s, removes sleeve slurry anchor, and jockey carries out tensile test to sleeve slurry anchor;

(3) if grouting material reinforcing bar is extracted in sleeve, then this kind of grouting material damage is serious, is judged to be defective; If reinforcing bar enters yielding stage or breaks, then the tensile test result of tensile test result and contrast groups is contrasted, and then analyze grouting material degree of impairment, judge whether grouting material can meet structural safety needs, whether qualified under geological process.

Wherein, tensile test result is for extracting displacement and Ultimate Tensile power, and contrast groups is the sleeve slurry anchor of the same manufacture craft of employing not being subject to vibration force effect.

The utility model creatively produces pressure simulation Practical Project middle sleeve slurry anchor web member pressurized situation with the deadweight of mass ball 5, under the vibration of shaking table, the effect of inertial force to sleeve slurry anchor is produced with mass ball 5, simulation Practical Project middle sleeve slurry anchor web member under tension, shearing, the situation of Moment, thus the actual forced status of grouting material under failure under earthquake action, after input ground seismic wave function, its geological process connection by post-installed fastenings performance is checked again with pull-out test, thus the anchoring property after this kind of connection or anchoring slurry geological process can be determined.

As shown in Figure 2, shaking table 3, mass ball 5 and sleeve anchor composition forced vibration system, mass ball 5 produces inertial force in motion process, sleeve anchor and reinforcing bar form variation rigidity rod member, restoring force is provided, the seismic event that shaking table 3 provides according to vibrator 2 vibrates, and drives mass ball 5 to move together.When the vibration table vibration of shaking table 3, the relative displacement of any time mass ball m is x (t), and any time displacement of vibration table is x _gt (), the absolute acceleration of mass ball m is the rigidity of anchoring rod piece system is set to k, and get mass ball m for departing from body, the inertial force suffered by it is owing to rubbing in material, the friction of element joints and the damping force of surrounding medium to vibration be elastic restoring force is f _s=-kx (t), according to D'Alembert's principle, the balance equation departing from weight ball m is f _i+ f _d+ f _s=0, thus the differential equation of motion obtaining mass ball m any time t under geological process because anchoring rod piece system adopts slurry to connect, so slurry will be subject to course under cyclic loading in motion process, consider from energy point of view, above formula each power contraposition allochthonous deposit will be divided ${\∫}_0^{x\left(t\right)}m\stackrel{\·\·}{x}\left(t\right)\mathrm{dx}+{\∫}_0^{x\left(t\right)}c\stackrel{\·}{x}\left(t\right)\mathrm{dx}+{\∫}_0^{x\left(t\right)}\mathrm{kx}\left(t\right)\mathrm{dx}=-{\∫}_0^{x\left(t\right)}m{\stackrel{\·\·}{x}}_g\left(t\right)\mathrm{dx},$ And then any time energy conservation equation can be obtained: ${\∫}_0^{t}m\stackrel{\·\·}{x}\left(t\right)\stackrel{\·}{x}\left(t\right)\mathrm{dt}+{\∫}_0^{t}c\stackrel{\·}{x}\left(t\right)\stackrel{\·}{x}\left(t\right)\mathrm{dt}+{\∫}_0^t\mathrm{kx}\left(t\right)\stackrel{\·}{x}\left(t\right)\mathrm{dt}=-{\∫}_0^{t}m{\stackrel{\·\·}{x}}_g\left(t\right)\stackrel{\·}{x}\left(t\right)\mathrm{dt},$ Section 1 is the total kinetic energy of structure, stop gradually with the stopping of earthquake motion loading in this structural system, Section 2 is damping consumed energy, relevant with the value size of damping ratio, Section 3 comprises recoverable elastic strain energy (being finally zero) and is hysteretic energy of structures, it is the main power consumption mode of structure, it is the gross energy of input earthquake structure on the right of equation, namely structure always inputs energy, consider energy conservation, total input energy will be dissipated by damping and hysteresis, because slurry anchor material is mainly nonmetallic materials, using cement as bonding agent, thus, under geological process, slurry anchor material absorbs certain energy by with damping and hysteresis mode, damage in various degree can be brought, whether this damage can affect the performance of the anchor connection of reinforcing bar, can be easy to draw by the tensile test of anchoring piece, thus the adhesive property of pulp anchor material under geological process can be checked.

Above-described the utility model embodiment, does not form the restriction to the utility model protection domain.Any do within spirit of the present utility model and principle amendment, equivalent to replace and improvement etc., all should be included within claims of the present utility model.

Claims (4)

1. sleeve slurry anchor web member anti-seismic performance pick-up unit, it is characterized in that, comprise computing machine, vibrator, shaking table, sleeve and mass ball, reinforcing bar is provided with in described sleeve, reinforcing bar is in the milk with sleeve and is connected, sleeve upper end is connected with mass ball, and sleeve lower end is fixing on a vibration table by connecting base, and described sleeve is fixed on by reinforcing bar and connects on base.

2. sleeve slurry anchor web member anti-seismic performance pick-up unit according to claim 1, is characterized in that, described computing machine is used for Earthquake occurrence control ripple size sending with Received signal strength to vibrator.

3. anchor web member anti-seismic performance pick-up unit starched by sleeve according to claim 1, it is characterized in that, described mass ball circular solids, uniform quality.

4. anchor web member anti-seismic performance pick-up unit starched by sleeve according to claim 1, and it is characterized in that, the vibration frequency that described shaking table provides is 50Hz to the maximum.