CN215282587U - Full grout sleeve tensile test piece preparation mount - Google Patents

Abstract

The utility model discloses a fixing frame for manufacturing a full grouting sleeve tensile test piece, which comprises a crossing bottom frame, an assembling frame, positioning strips and a limiting frame, wherein the crossing bottom frame comprises a left supporting plate, a right supporting plate and a bottom plate, the bottom plate is fixed above the left supporting plate and the right supporting plate to form an inverted U shape, the front surface of the bottom plate is provided with a groove, the back surface of the bottom plate is provided with a plurality of lower positioning tubes, the assembling frame is divided into two parts which are arranged above the two ends of the bottom plate, the positioning strips are divided into an upper group and a lower group, each group of positioning strips comprises two steel rods which are vertically connected with the assembling frame, an inserting tube opening is arranged between the two steel rods, the base surface of the limiting frame is arranged above the two steel rods, an upper positioning tube is arranged above the base surface, a plurality of positioning holes are arranged on the base surface, and rubber sleeves are arranged in the bottom of the groove and the upper positioning tube and the lower positioning tube, the invention has convenient and safe use and simple operation, the steel bar positioning is accurate, the grouting is convenient, the stability of the quality of the test piece can be ensured, and the application range is wide.

Description

Full grout sleeve tensile test piece preparation mount

Technical Field

The utility model belongs to the technical field of concrete structure engineering, concretely relates to full grout sleeve tensile test piece preparation mount.

Background

The prefabricated building construction becomes the development trend of building industrialization, the connecting part of a prefabricated concrete structure is small, the construction is inconvenient by adopting the traditional steel bar connecting modes such as binding and welding, and the longitudinal steel bar connection in the prefabricated structure is generally connected by adopting steel bar sleeve grouting. The existing common connection method comprises the steps that two steel bar pairs needing to be connected are inserted into a grouting sleeve, and a full-grouting connection mode of high-strength non-shrinkage cement-based grouting material is poured into the sleeve, wherein the two steel bars need to be vertical, stable and accurate in positioning, and a full-grouting sleeve standard tensile test piece needs to be manufactured for testing in order to test the grouting connection quality of the steel bar sleeve. In addition, in the actual construction process, the position of the steel bar is not necessarily accurate and vertical, the insertion depth does not necessarily meet the requirements, and a tensile test piece is manufactured for simulating the insertion position, depth and angle of various steel bars on site, testing the actual tensile strength under various adverse factors on site and preparing for later work, so that the development of a fixing frame for manufacturing the tensile test piece of the full grouting sleeve is needed.

Disclosure of Invention

In order to solve the problem, the utility model discloses a full grout sleeve tensile test piece preparation mount, convenient to use safety, easy operation, the reinforcing bar location is accurate, and the stability of test piece quality can be guaranteed in the grout of being convenient for.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a full grout sleeve tensile test piece preparation mount, is including spaning chassis, assembly jig, locating bar, spacing, it includes left support plate, right branch fagging, bottom plate to span the chassis, the bottom plate is fixed and is formed "U" type in left support plate and right branch fagging top, and the bottom plate openly is equipped with the recess, and the bottom plate back is equipped with a plurality of registration arms down, the assembly jig is two sets of in bottom plate both ends tops of branch, the locating bar is upper and lower two sets of, and every group locating bar includes two steel bars, the assembly jig is connected perpendicularly to two steel bars, is equipped with the mouth of pipe of inserting between two steel bars, spacing basal plane setting is in two steel bar tops, and basal plane top is equipped with the registration arm, is equipped with a plurality of locating holes on the basal plane, all be equipped with the gum cover in recess bottom and the last registration arm, the lower registration arm.

As an improvement of the utility model, the included angle between the upper positioning pipe and the horizontal direction and the included angle between the lower positioning pipe and the horizontal direction are 75-90 degrees.

As an improvement of the utility model, the assembly jig is a square tube or an angle iron.

As an improvement of the utility model, the upper positioning tube is the same as the lower positioning tube in quantity, and the position is corresponding.

As an improvement of the utility model, the groove bottom and the rubber sleeve integrated into one piece in the lower positioning tube.

The utility model has the advantages that:

a full grout sleeve tensile test piece preparation mount, convenient to use safety, easy operation, the reinforcing bar location is accurate, the grout of being convenient for can guarantee the stability of test piece quality, application scope is wide.

Drawings

Fig. 1 is a front view of the fixing frame of the present invention.

Fig. 2 is a schematic view of the present invention.

Fig. 3 is a top view of the fixing frame of the present invention.

Fig. 4 is a schematic diagram of the bottom of the groove and the inner rubber sleeve of the lower positioning tube.

Fig. 5 is the working state diagram of the tensile test piece of the present invention.

List of reference numerals:

1. left branch fagging, 2, right branch fagging, 3, the bottom plate, 4, the recess, 5, lower registration arm, 6, the assembly jig, 7, go up the registration arm, 8, lower registration arm, 9, the intubate mouth, 10, the rod iron, 11, spacing, 12, the base face, 13, go up the registration arm, 14, the locating hole, 15, go up the gum cover in the registration arm, 16, the sleeve body, 17, closed ring shear force groove, 18, the grout hole, 19, reinforcing bar two, 20, reinforcing bar one, 21, fixed buckle, 22, the gum cover in recess bottom and the lower registration arm, 23, arrange the thick liquid hole, 24, the locating pin.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in the drawing, a full grout sleeve tensile test piece preparation mount, including spaning chassis, assembly jig 6, location strip, spacing 11, it includes left support plate 1, right branch fagging 2, bottom plate 3 to spane the chassis, bottom plate 3 is fixed and is formed down "U" type in left support plate 1 and right branch fagging 2 top, and bottom plate 3 openly is equipped with recess 4, and the bottom plate back is equipped with a plurality of registration arms 5 down, the assembly jig is divided for two and is established in bottom plate both ends top, the location strip is upper and lower two sets of 7, 8, and every group location strip includes two steel bars 10, assembly jig 6 is connected perpendicularly to two steel bars, is equipped with between two steel bars and inserts mouth of pipe 9, spacing basal plane 12 sets up in two steel bars 10 tops, basal plane top is equipped with registration arm 13, is equipped with a plurality of locating holes 14 on the basal plane, in recess bottom and the last registration arm, The lower positioning pipes are internally provided with rubber sleeves 15 and 22.

When the grouting sleeve is used, the first steel bar 20 is inserted into the grouting end below the grouting sleeve body 16, the steel bar is inserted into the lower positioning strip 8 from the inserting pipe opening 9 of the fixing frame after the insertion depth of the steel bar reaches the standard requirement, the lower end of the grouting sleeve body 16 is inserted into the groove 4 (the grouting sleeve body 16 is fixed on the lower positioning strip 8 by the fixing buckle 21 in the middle), the lower end of the first steel bar 20 is inserted into the lower positioning pipe, the inner diameter of a rubber sleeve in the lower positioning pipe is 0.5-2mm smaller than that of the first steel bar 20, the first steel bar 20 and the grouting sleeve body 16 are fixed in the lower positioning pipe 5 after being inserted, the height of the full grouting sleeve body 16 is lower than that of the upper positioning strip 7, as shown in fig. 5, 7 sleeve bodies 16 are vertically placed on the bottom plate 3, the sleeve bodies 16 are provided with closed ring shear grooves 17 meeting the standard requirement, and grouting holes 18 and grout discharging holes 23 are formed in the outer sides of the sleeve bodies; the lower positioning tube 5 is straight and inclined, and the included angle between the axis of the lower positioning tube and the horizontal direction is 75-90 degrees; the included angle is 90 degrees, namely the vertical direction, the lower positioning pipe 5 at other angles is in the inclined direction, the second steel bar 19 is inserted into the upper positioning pipe 13 in the same way, the included angle between the upper positioning pipe 13 and the horizontal direction is 75-90 degrees, the upper positioning pipe is also straight and inclined, the limiting frame 11 is fixed on two steel bars of the upper positioning strip 7 by inserting the positioning pin 24, it is ensured that some steel bars (including the first steel bar and the second steel bar) are vertically arranged in the center of the sleeve, some steel bars are vertically arranged on one side (offset) of the sleeve, and other steel bars are obliquely arranged in the sleeve, all possible structures in the actual construction process are perfectly simulated, grouting material is injected from the grouting hole 18, the grouting hole 18 and the grout discharging hole 23 are blocked after the grouting, a tensile test is performed after the standard maintenance is carried out for 28 days, and reference data are provided for the next decision making.

As shown in FIG. 2, about left branch fagging 1 and right branch fagging 2 be trapezoidal, narrow above the footing width, stability is better like this, the tensile test piece shaping of being convenient for.

Recess 4 sets up on bottom plate 3, plays the effect of interval and thick location when sleeve body 16 puts down, 4 sizes of recess are greater than sleeve body 16's diameter, and sleeve body 16 of being convenient for removes in the recess, lets the reinforcing bar be in sleeve centre or the offset position.

Rubber sheets are arranged in the grooves 4, and the rubber sheets are convenient to take out after being irrigated. In addition, the bottom of the groove 4 and the rubber sleeve 22 in the lower positioning tube 5 are integrally formed, so that the assembly steps and parts are reduced, and the working efficiency is improved.

The assembly jig 6 is square pipe or angle bar, ensures to leave the breach between two rod irons as the mouth of pipe 9, and the sleeve body 16 of being convenient for is put into.

The utility model can be combined according to the actual situation, the number of the upper positioning pipes 13 is the same with that of the lower positioning pipes 5, but the angles and the positions are not necessarily the same, as shown in figure 5,

the sleeve body a is provided with an upper steel bar II 19 in the middle and a lower steel bar I20 in the middle;

the sleeve body b is provided with a second upper steel bar 19 in an offset manner, and a first lower steel bar 20 in an offset manner;

the sleeve body c is provided with an upper steel bar II 19 arranged in the center and a lower steel bar I20 arranged in an offset manner;

the sleeve body d is provided with an upper steel bar II 19 in an inclined mode and a lower steel bar I20 in the middle;

the sleeve body e is provided with a second upper steel bar 19 in an inclined mode, and a first lower steel bar 20 in an inclined mode;

the sleeve body f is provided with an upper steel bar II 19 in an offset manner and a lower steel bar I20 in the center;

the sleeve body g is obliquely arranged with an upper steel bar II 19 and a lower steel bar I20 in an offset way.

The device can be used for manufacturing various test pieces, perfectly simulates all possible structures (other combinations can be provided, and the inclined angle is also various) in the actual construction process, is convenient for analyzing the bearing limit of the concrete under the most extreme condition, and provides reference data for making decisions under special conditions.

The technical means disclosed in the present invention is not limited to the technical means disclosed in the above embodiments, but also includes the technical solution formed by combining the above technical features at will.

Claims (5)

1. The utility model provides a full grout sleeve tensile test piece preparation mount which characterized in that: including spaning chassis, assembly jig, locating bar, spacing, it includes left support plate, right branch fagging, bottom plate to spane the chassis, the bottom plate is fixed and is formed down "U" type in left support plate and right branch fagging top, and the bottom plate openly is equipped with the recess, and the bottom plate back is equipped with a plurality of registration arms down, the assembly jig is two sets of for two minutes to be established in bottom plate both ends top, the locating bar is upper and lower two sets of, and every group locating bar includes two steel bars, two steel bars connect the assembly jig perpendicularly, are equipped with the intubate mouth between two steel bars, spacing basal plane setting of putting up is in two steel bar tops, and basal plane top is equipped with the registration arm, is equipped with a plurality of locating holes on the basal plane, all be equipped with the gum cover in recess bottom and the last registration arm, the lower registration arm.

2. The manufacturing fixing frame for the full grouting sleeve tensile test piece according to claim 1, characterized in that: the included angle between the upper positioning pipe and the horizontal direction and the included angle between the lower positioning pipe and the horizontal direction are 75-90 degrees.

3. The manufacturing fixing frame for the full grouting sleeve tensile test piece according to claim 1, characterized in that: the assembly jig is a square tube or an angle iron.

4. The manufacturing fixing frame for the full grouting sleeve tensile test piece according to claim 1, characterized in that: the number of the upper positioning pipes is the same as that of the lower positioning pipes, and the positions of the upper positioning pipes and the lower positioning pipes are corresponding.

5. The manufacturing fixing frame for the full grouting sleeve tensile test piece according to claim 1, characterized in that: the bottom of the groove and the rubber sleeve in the lower positioning pipe are integrally formed.

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