阅读说明：本技术 一种锚下有效预应力检测的智能锚具及制作方法 (The intelligent anchorage and production method that effective prestress detects under a kind of anchor ) 是由 陈旭 张峰 刘聿锋 吴士乾 王昕� 高华睿 于 2019-07-25 设计创作，主要内容包括：本发明公开了一种锚下有效预应力检测的智能锚具及制作方法,包括锚具和应变片；沿所述锚具的圆周方向,在锚具的侧壁上均匀的设置多个所述的应变片,每个所述的应变片通过引出线与接线端子相连；所述的接线端子通过屏蔽线与数据处理装置相连,且在所述的应变片的外层设有一层保护层。利用锚具四周粘贴的应变片,测量预应力钢绞线张拉时有效预应力大小,保证了预应力钢束中有效预应力大小,提高了桥梁施工及使用过程中的安全性,延长了桥梁的使用寿命,便于施工管理与质量控制。(The intelligent anchorage and production method detected the invention discloses effective prestress under a kind of anchor, including anchorage and foil gauge；Along the circumferencial direction of the anchorage, multiple foil gauges are uniformly set on the side wall of anchorage, each foil gauge is connected by lead-out wire with connecting terminal；The connecting terminal is connected by shielding line with data processing equipment, and is equipped with a protective layer in the outer layer of the foil gauge.The foil gauge pasted using anchorage surrounding, effective prestress size when measuring prestress wire tensioning, ensure that effective prestress size in prestressed strand, improves the safety in bridge construction and use process, the service life of bridge is extended, is controlled convenient for construction management and quality.)

1. the intelligent anchorage that effective prestress detects under a kind of anchor, which is characterized in that including anchorage and foil gauge；

Along the circumferencial direction of the anchorage, multiple foil gauges are uniformly set on the side wall of anchorage, it is each described Foil gauge is connected by lead-out wire with connecting terminal；The connecting terminal is connected by shielding line with data processing equipment, and A protective layer is equipped in the outer layer of the foil gauge.

2. the intelligent anchorage that effective prestress detects under anchor as described in claim 1, which is characterized in that the foil gauge is logical Glue is crossed to paste on the anchorage side wall.

3. the intelligent anchorage that effective prestress detects under anchor as described in claim 1, which is characterized in that in the foil gauge Top be equipped with one layer of epoxy glue, be used for foil gauge waterproof.

4. the intelligent anchorage that effective prestress detects under anchor as described in claim 1, which is characterized in that smearing epoxy glue Foil gauge above be wound with a circle adhesive waterproof tape.

5. the intelligent anchorage that effective prestress detects under anchor as described in claim 1, which is characterized in that the protective layer is Iron sheet protective layer is located above adhesive waterproof tape, is damaged with preventing foil gauge from scratching, while preventing to produce during anchorage installation Damage of the raw shock to foil gauge and pad.

6. the intelligent anchorage that effective prestress detects under anchor as described in claim 1, which is characterized in that protected in the iron sheet Iron sheet protective layer is converted into " L " type by sheath both ends, and the type riser relative position " L " is punched, and is connected with.

7. the intelligent anchorage that effective prestress detects under anchor as described in claim 1, which is characterized in that the shielding line benefit It is welded with scolding tin and foil gauge terminal.

8. the production method for the intelligent anchorage that effective prestress detects under a kind of anchor as claimed in claim 1, special Sign is, including the following steps:

Step 1: anchorage outer wall being equally divided into more equal parts, in 1/2 position of height of anchorage, confirms the installation site of foil gauge；

Step 2: anchorage outer wall surface of polishing near the installation site of foil gauge, until anchorage surface is smooth；Clean anchorage table Face is until anchorage clean surface；

Step 3: applying one layer of glue below foil gauge, foil gauge is labelled to installation site, while one layer of lid above foil gauge Polyvinyl chloride film continues to roll repeatedly to squeeze out extra glue and bubble；

Step 4: pasting terminal near foil gauge lead-out wire, while pasting a layer insulating below lead, foil gauge is drawn Outlet and shielding line carry out soldering, are soldered to above terminal；

Step 5: checking strain sheet resistance, determine foil gauge without short circuit, breaking phenomena；

Step 6: smearing one layer of epoxy glue above foil gauge and smearing answering for epoxy glue after smeared epoxy glue parches Become above piece and winds adhesive waterproof tape around anchorage；

Step 7: iron sheet protective layer being installed in anchorage outermost, is enclosed around anchorage one；

Step 8: prolong iron sheet length direction for iron sheet and be bent into " L " type, and two " L " type riser centers are respectively set into a hole, And make two circular cavities position corresponding, so that bolt passes through；

Step 9: strain acquirement case will be connected to the shielding line that terminal soldering is taken over.

Technical field

The present invention relates to effective prestress detection fields, especially devise the intelligent anchor that effective prestress detects under a kind of anchor Have device and production method.

Background technique

In bridge construction, the accounting of prestressed concrete is increasing, and in bridge construction, the tensioning of prestressed strand is The important component that prestressing force is formed.However, in many cases in prestressed strand stretching process, by tensioning steel Shu Changdu Limitation, cause its effective prestress be less than design value, reduce bridge service life.

Tensioning construction quality seriously affects the security performance of bridge.Inventor has found magnetic flux transducer and is based on The punching pressure sensor of vibrating wire principle can test anchor lower prestress, but testing cost is high, and test sample is few.Pulling escape As a kind of prestressing force non-destructive testing technology, effective prestress under steel strand wires anchor not only can be accurately tested, and is easy to implement.But It is that cannot move back anchor steel strand wires in Practical Project repeatedly, while Pulling escape needs tensioning active length, Pulling escape test can only survey The anchor lower prestress for trying the construction time, cannot do long-term observation.

Summary of the invention

The purpose of the present invention is the deficiency to solve stretching force in the construction of above-mentioned existing highway bridge, providing has under a kind of novel anchor The structure and production method of prestress detection intelligent anchorage are imitated, there is very big application value, it is pre- to be applied to construction period tensioning The device that effective prestress is detected when stress steel beam, can reach design requirement with the prestressing force guaranteed in prestressed strand.

To achieve the goals above, the present invention uses following technical measures:

The intelligent anchorage that effective prestress detects under a kind of anchor, including anchorage and foil gauge；

Along the circumferencial direction of the anchorage, multiple foil gauges, Mei Gesuo are uniformly set on the side wall of anchorage The foil gauge stated is connected by lead-out wire with connecting terminal；The connecting terminal passes through shielding line and data processing equipment phase Even, and in the outer layer of the foil gauge it is equipped with a protective layer.

As further technical solution, the foil gauge is pasted on the anchorage side wall by glue.

As further technical solution, it is equipped with one layer of epoxy glue in the top of the foil gauge, it is anti-for foil gauge Water.

As further technical solution, a circle adhesive waterproof tape is wound with above the foil gauge for having smeared epoxy glue.

As further technical solution, the protective layer is iron sheet protective layer, is located above adhesive waterproof tape, to prevent Foil gauge, which scratches, to be damaged, while preventing damage of the issuable shock to foil gauge and pad during anchorage installation.

As further technical solution, iron sheet protective layer is converted into " L " type at the iron sheet protective layer both ends, and will The type riser relative position " L " punching, is connected with.

As further technical solution, the shielding line is welded using scolding tin and foil gauge terminal.

For above-mentioned intelligent anchorage, the present invention also provides the production for the intelligent anchorage that effective prestress under a kind of anchor detects Method, including the following steps:

Step 1: anchorage outer wall being equally divided into more equal parts, in 1/2 position of height of anchorage, confirms the installation position of foil gauge It sets；

Step 2: anchorage outer wall surface of polishing near the installation site of foil gauge, until anchorage surface is smooth；Clean anchor Has surface until anchorage clean surface；

Step 3: applying one layer of glue below foil gauge, foil gauge is labelled to installation site, while covering above foil gauge One strata vinyl chloride film continues to roll repeatedly to squeeze out extra glue and bubble；

Step 4: pasting terminal near foil gauge lead-out wire, while pasting a layer insulating below lead, will strain Piece lead-out wire and shielding line carry out soldering, are soldered to above terminal；

Step 5: checking strain sheet resistance, determine foil gauge without short circuit, breaking phenomena；

Step 6: smearing one layer of epoxy glue above foil gauge and smearing epoxy glue after smeared epoxy glue parches Foil gauge above around anchorage wind adhesive waterproof tape；

Step 7: iron sheet protective layer being installed in anchorage outermost, is enclosed around anchorage one；

Step 8: iron sheet being bent into " L " type at iron sheet protective layer both ends, and respectively bores one in two sides vertical version corresponding position Bolt is passed through hole by a hole；

Step 9: strain acquirement case will be connected to the shielding line that terminal soldering is taken over.

The beneficial effects of the present invention are:

(1) the invention proposes the intelligent anchorages that effective prestress under a kind of anchor detects, and are answered using what anchorage surrounding was pasted Become piece, effective prestress size when measuring prestress wire tensioning ensure that effective prestress size in prestressed strand, mention Safety in high bridge construction and use process, extends the service life of bridge, controls convenient for construction management and quality；

(2) present invention is protected using the foil gauge that iron sheet layer, epoxy glue, adhesive waterproof tape etc. paste anchorage surrounding Shield, ensure that foil gauge is not damaged or makes moist in measurement process, improve in collection process the stability of data and reliable Property；

(3) iron sheet layer of the invention is conducive to protect foil gauge pad, prevent in data acquisition due to Shortage of data caused by line interruption.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.

Fig. 1 is anchorage and the iron sheet protective layer location drawing；

Fig. 2 is the strain gauge adhesion location drawing；

Fig. 3 is strain gauge adhesion detail drawing；

Fig. 4 is foil gauge terminal connection figure；

Fig. 5 is waterproof protective layer；

Fig. 6 is iron sheet protective layer detail drawing；

Fig. 7 is the iron sheet protective layer buckle location drawing；

Fig. 8 is detail drawing at iron sheet buckle；

Fig. 9 is strain acquirement case connection figure；

Figure 10 is Bolted angle connection figure.

In figure: 1 anchorage, 2 iron sheet protective layers, 3 foil gauges, 7 connecting terminals, 4 lead-out wires, 6 scolding tin, 5 glue, 8 anchorage circumference The side in direction, 9 adhesive waterproof tapes, 10 epoxy glues, 12 iron sheet protective layer buckles, 13 holes, 15 risers, 17 strain acquirement casees, 18 Shielding line, 19 " L " type risers, 20 bolts.

Specific embodiment

It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or their combination；

As background technique is introduced, in the prior art in a kind of typical embodiment of the application, as shown in Figure 1, Figure 2 Shown, the invention discloses the intelligent anchorages that effective prestress under a kind of anchor detects.It is characterized in that collected by foil gauge Data, measure the effective prestress in steel beam, and effective prestress in bridge is finally made to be guaranteed, to extend bridge use Service life.Specific structure includes: anchorage 1, foil gauge 3, connecting terminal 7, lead-out wire 4, scolding tin 6,502 glue 5, epoxy glue 10, prevents Glue band 9, iron sheet protective layer 2, iron sheet protective layer buckle 12, riser 15, bolt 20, shielding line 18, strain acquirement case 17,8 anchors Have side, 13 holes of circumferencial direction；

The anchorage 1, outer wall perimeter are bisected into ten equal parts；The foil gauge 3 is pasted on anchor using 502 glue 5 At the position for having ten equal part of outer wall；Ten foil gauges are adhesive on the anchorage；

At the connecting terminal 7, position and 3 top 1-2mm of foil gauge；The lead-out wire 4, connect with foil gauge 3, prolongs Extend to 7 top of connecting terminal；The scolding tin 6 is located at 7 top of connecting terminal, is welded with connecting terminal 7 with electric iron；It is described 502 glue 5, between foil gauge 3 and anchorage 1, foil gauge 3 to be pasted on anchorage 1；The epoxy glue 10, position Above foil gauge 3, it to be used for 3 waterproof of foil gauge；The adhesive waterproof tape 9, is wound on the foil gauge 3 for having smeared epoxy glue 10 Side winds 5 circles altogether；The iron sheet protective layer 2 is located at 9 top of adhesive waterproof tape, is damaged with preventing foil gauge 3 from scratching, prevented simultaneously Only damage of the issuable shock to foil gauge and pad during anchorage installation；The iron sheet protective layer buckle 12, Positioned at 2 lap-joint of iron sheet protective layer；The auxiliary iron sheet layer 14 is located at below iron sheet protective layer；The angle steel 19, is located at 2 top of iron sheet protective layer；The bolt 20 passes through and assists iron, cortex 14, iron sheet protective layer 2, angle steel or two angle steel, It is set to be connected to become entirety；The shielding line 18 is welded using scolding tin 6 and connecting terminal 7；The strain acquirement case 17, It is connect with shielding line 18, for acquiring strain sheet data.

In conjunction with shown in Fig. 1-Figure 10,1 outer wall of anchorage is equally divided into 10 equal parts, in 1/2 position of height of anchorage, uses horse Gram stroke goes out cross hairs；

In conjunction with shown in Fig. 1-Figure 10, polished anchorage outer wall surface near cross line position with sand paper, until anchorage surface It is smooth；

In conjunction with shown in Fig. 1-Figure 10, absolute alcohol cleaning anchorage surface is dipped in rayon balls, cleaning 2-3 is all over until anchorage Clean surface；

In conjunction with shown in Fig. 1-Figure 10, having a size of below 5mm × 3mm foil gauge 3 apply one layer of 502 glue 5, by foil gauge 3 It is labelled at cross hairs, while the one strata vinyl chloride film of lid above foil gauge, continues gently to roll repeatedly so as to will be extra Glue and bubble squeeze out；

In conjunction with shown in Fig. 1-Figure 10, terminal 7 is pasted above the foil gauge lead-out wire at 1-2mm, while being glued below lead One layer of insulating tape is pasted, foil gauge lead-out wire 4 and shielding line 18 are subjected to soldering with electric iron, are soldered to above terminal；

In conjunction with shown in Fig. 1-Figure 10, utilize general-purpose table look-up foil gauge resistance, it is ensured that strain sheet resistance in 120 Ω or so, To guarantee foil gauge without short circuit, breaking phenomena；

In conjunction with shown in Fig. 1-Figure 10, one layer of epoxy glue 10 is smeared above foil gauge, is surveyed with preventing water point from influencing foil gauge Measure data；

In conjunction with shown in Fig. 1-Figure 10, after smeared epoxy glue parches above foil gauge, in the foil gauge for smearing epoxy glue Top is around 5 circle adhesive waterproof tape 9 of anchorage winding；

In conjunction with shown in Fig. 1-Figure 10, iron sheet protective layer 2, iron sheet protective layer width 1cm, length are installed in anchorage outermost For anchorage outer wall perimeter, to guarantee that iron sheet protective layer is enclosed around anchorage one, and prolongs iron sheet length direction and iron sheet is bent into " L " type, And a hole is respectively bored in two sides vertical version 15, and bolt is passed through into hole；

In conjunction with shown in Fig. 1-Figure 10, the shielding line welded with connecting terminal 7 is connected to strain acquirement case 17.

The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.