CN105714697B - Concrete bridge beam slab reinforcement means based on pre-stressed steel plate - Google Patents
Concrete bridge beam slab reinforcement means based on pre-stressed steel plate Download PDFInfo
- Publication number
- CN105714697B CN105714697B CN201610144080.7A CN201610144080A CN105714697B CN 105714697 B CN105714697 B CN 105714697B CN 201610144080 A CN201610144080 A CN 201610144080A CN 105714697 B CN105714697 B CN 105714697B
- Authority
- CN
- China
- Prior art keywords
- steel plate
- stressed steel
- stressed
- bridge beam
- beam slab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 174
- 239000010959 steel Substances 0.000 title claims abstract description 174
- 230000002787 reinforcement Effects 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 49
- 239000000126 substance Substances 0.000 claims description 30
- 238000005259 measurement Methods 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003856 thermoforming Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007596 consolidation process Methods 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of concrete bridge beam slab reinforcement means based on pre-stressed steel plate, including 2 pieces of pre-embedded steel slabs, steel band, 4 blocks of wing plates, prestress steel heating apparatus, temperature sensor, dial gauge and controller；2 blocks of wing plates are connected with steel band left part top edge and lower edge and constitute left part combining structure respectively, other 2 blocks of wing plates are connected with steel band right part top edge and lower edge and constitute right part combining structure respectively, left part combining structure is connected with 1 piece of pre-embedded steel slab, and right part combining structure is connected with another 1 piece of pre-embedded steel slab；Controller is electrically connected with temperature sensor, dial gauge and heater respectively.The present invention, which has, can be used for heating pre-stressed steel plate at bridge strengthening scene, effectively reduce difficulty of construction, the characteristics of improving efficiency of construction and consolidation effect.
Description
Technical field
It is low more particularly, to a kind of heating accuracy height, difficulty of construction the present invention relates to Technology Bridge Strengthening field, reinforce effect
The really good concrete bridge beam slab reinforcement means based on pre-stressed steel plate.
Background technology
It is typically that will in advance be heated for the pre-stressed steel plate of reinforcement bridge plate when carrying out bridge plate reinforcing, then will
The pre-stressed steel plate heated is placed into the installation of bridge plate bottom, due to during installation, the temperature meeting of pre-stressed steel plate
Rapid decrease, improves the difficulty of construction, and there are needs and repeatedly heat the problem of could meeting construction requirement, reduction repeatedly
Efficiency of construction.
Chinese patent mandate publication number：CN104314014A, authorizes publication date on January 28th, 2015, discloses a kind of pre-
The method of stress steel plate reinforcement concrete-bridge, is carried out according to following steps：Concrete surface processing is to two adjacent beams of bridge
Need the region of fixation steel plate to be cleared up on plate, reject top layer loose matter, remove surface laitance, remove surface dust；Drilling is planted
Screw rod is buried to determine screw rod hole site according to design requirement and drilled；Then planted using structure glue and bury screw rod, until structure glue
Solidification-stable；The calculating of the screw position and the coefficient of expansion that are buried according to planting, carries out supporting punching, then to steel plate to be pasted
Sticking veneer derusting and coarse processing to steel plate；Steel plate heating, fixation are heated to 50 to 60 DEG C to steel plate, are set on immediately after
In foregoing screw rod；Affixing steel plate applies filling structure glue between concrete surface and affixing steel plate, it is ensured that fill close between the two；
Then fixation is tightened with nut；Surface of steel plate preservative treatment.The weak point of the invention is that difficulty of construction is high, low construction efficiency.
The content of the invention
The goal of the invention of the present invention is to cause construction difficult the heating means of pre-stressed steel plate in the prior art to overcome
Degree is high, low construction efficiency it is not enough there is provided a kind of heating accuracy is high, difficulty of construction is low, consolidation effect is good based on prestressing force
The concrete bridge beam slab reinforcement means of steel plate.
To achieve these goals, the present invention uses following technical scheme：
A kind of concrete bridge beam slab reinforcement means based on pre-stressed steel plate, including 2 pieces of pre-embedded steel slabs, pre-stressed steel plate, 4
Block wing plate, prestress steel heating apparatus, temperature sensor, dial gauge and controller；2 blocks of wing plates are left with pre-stressed steel plate respectively
Portion's top edge and lower edge connect and constitute left part combining structure, in addition 2 blocks of wing plates respectively with pre-stressed steel plate right part top edge
Connected with lower edge and constitute right part combining structure, left part combining structure is connected with 1 piece of pre-embedded steel slab, right part combining structure with it is another
1 piece of pre-embedded steel slab connection；Controller is electrically connected with temperature sensor, dial gauge and prestress steel heating apparatus respectively；
Comprise the following steps：The fluting punching of concrete bridge beam slab, installs pre-embedded steel slab, measurement bolt position and perforate, by 4
Block wing plate is welded to the both sides of pre-stressed steel plate left part and right part, and pre-stressed steel plate is fixed temporarily, installs dial gauge, and heating in advance should
Power steel plate, prestressed steel plate.
Scene is reinforced in bridge plate, prestress steel heating apparatus is heated to pre-stressed steel plate, and length is provided with controller
Threshold value W, makes temperature sensor be in contact with pre-stressed steel plate, is supported casing stabilization with support；
Controller controls pre-stressed steel plate heating devices heat, and temperature sensor detects the temperature of pre-stressed steel plate, percentage
The length w ' of table detection pre-stressed steel plate elongation, controller calculates weld seam shearing strength, as w ' >=W, and controller controls each bar
Heat cable and stop heating；
Temperature sensor, dial gauge is separated with pre-stressed steel plate, pre-stressed steel plate is installed on bridge plate, make heat conduction
Dividing plate is separated with pre-stressed steel plate.
After the present invention, pre-stressed steel plate can be installed to bridge during being heated to pre-stressed steel plate
On beam slab, the length that pre-stressed steel plate is effectively ensured reaches construction requirement, is not required to repeatedly heat pre-stressed steel plate repeatedly, reduces
The difficulty of construction, improves efficiency of construction and consolidation effect.
Preferably, the punching of concrete bridge beam slab fluting, installation pre-embedded steel slab, measurement bolt position and perforate are including as follows
Detailed step：
The punching of concrete bridge beam slab fluting, installation pre-embedded steel slab, measurement bolt position and perforate include following detailed step：
The fluting punching of concrete bridge beam slab：First concrete bridge beam slab lower surface left part and right part dig respectively can accommodate it is pre-
The concrete pit of steel plate is buried, the depth of 2 concrete pits is 0.8 to 1.1cm；Beaten in 2 concrete pits several first
Bolt hole, the depth of each first bolt hole is 10.8-11.8cm；
Pre-embedded steel slab is installed：The second bolt hole is made a call on 2 pieces of pre-embedded steel slabs, structure is coated 2 pieces of pre-embedded steel slab upper surfaces
Glue, chemical bolt is implanted into each first bolt hole respectively, each chemical bolt of two concrete pits is each passed through two
Each second bolt hole of block pre-embedded steel slab, tightens the nut of each chemical bolt, makes two pieces of pre-embedded steel slabs mixed with two respectively
Solidifying soil box bonding；
Measure bolt position and perforate：The position of each chemical bolt is measured, and is combined in left part combining structure and right part
The 3rd bolt hole is opened in structure.
Preferably, pre-stressed steel plate is temporarily fixed, installs dial gauge, heat pre-stressed steel plate and prestressed steel plate
Including following detailed step：
Pre-stressed steel plate is fixed temporarily：Unclamp the spiral shell of each chemical bolt of the concrete pit of concrete bridge beam slab left part
Mother, makes the screw rod of each chemical bolt pass through each bolt hole of left part combining structure, and screws on the nut of each chemical bolt,
Pre-stressed steel plate is set to be located at below pre-embedded steel slab；
Dial gauge is installed：Bridge post below concrete bridge beam slab right part is provided with dial gauge, make pre-stressed steel plate right-hand member with
The measurement bar of dial gauge is in contact；
Heat pre-stressed steel plate：Pre-stressed steel plate is put into prestress steel heating apparatus, length is provided with controller
Threshold value W, makes temperature sensor be in contact with pre-stressed steel plate, is supported prestress steel heating apparatus stabilization with support；
Controller controls prestress steel heating apparatus to heat pre-stressed steel plate, temperature sensor detection pre-stressed steel plate
Temperature, centimeter check pre-stressed steel plate elongation length w ', as w ' >=W, controller control pre-stressed steel plate heating dress
Put stopping heating；
Prestressed steel plate：Temperature sensor, dial gauge is set to be separated with pre-stressed steel plate, by concrete bridge beam slab right part
The screw rod of each chemical bolt of concrete pit penetrate each the 3rd bolt hole of right part combining structure, tighten all chemical spiral shells
The nut of bolt；Prestress steel heating apparatus is removed, the reinforcing of concrete bridge beam slab is completed.
Preferably, the prestress steel heating apparatus includes the strip casing that cross section is in concave shape, located at case
Some heating cables on the plate upper surface of body and the heat conduction baffle on each bar heating cable；Strip tank ends
Opening, length direction extension of each bar heating cable along casing；Controller is electrically connected with each bar heating cable.
Preferably, provided with cavity of the cross section in concave shape in casing, cavity is interior to be filled with glass fibre cotton.
Preferably, the heat conduction baffle both sides of the edge are in contact with box inside wall, heat conduction baffle uses iron material system
Into.
Preferably, being equipped with anchoring adhesive on each chemical bolt.
Preferably, each the 3rd bolt hole in right part combining structure is to extend along pre-stressed steel plate length direction
Slotted eye.
Preferably, also including alarm and memory, alarm and memory are electrically connected with the controller；Also include temperature
Spend Transducer fault detection step：
The normal temperature signal curve of temperature sensor is provided with memory；
(9-1) controller obtains the temperature signal curve S (t) of temperature sensor, when controller is extracted in S (t) with each
Between be spaced corresponding temperature signal value M1..., Mn；The serial number i, i=1 ..., n of design temperature signal value；
(9-2) controller utilizes formulaCalculate each temperature signal value MiSteady rate
ratioi；
As S (t) and ratio of the normal temperature signal curve without intersection point and each temperature signal valueiIt is respectively positioned on [1-A1,1
+ A1] outside scope, then controller control alarm sends the warning message of abnormality of temperature sensors.
Preferably, 2 blocks of wing plates of left part combining structure and right part combining structure are connected by weld seam and pre-stressed steel plate
Connect, set weld seam shearing strength asThe tensile strength of pre-stressed steel plate is f, left part combining structure and right part combining structure
Axle center static load is M, and M=fA, A is the cross-sectional area of pre-stressed steel plate；
Replaced with as w ' >=W：
As w ' >=W andWhen, controller control pre-stressed steel plate heater stop heating；
Wherein, H1For fusion length, H2For weld bead height.
Therefore, the present invention has the advantages that：Pre-stressed steel plate is heated available at bridge strengthening scene, effectively
Difficulty of construction is reduced, efficiency of construction and consolidation effect is improved.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the prestress steel heating apparatus of the present invention；
Fig. 2 is the pre-stressed steel plate of the present invention and a kind of structural representation of 4 blocks of wing plates；
Fig. 3 is a kind of structural representation of the pre-embedded steel slab of the present invention；
Fig. 4 is a kind of theory diagram of the present invention；
Fig. 5 is a kind of flow chart of embodiments of the invention 1.
In figure：Pre-embedded steel slab 1, pre-stressed steel plate 2, wing plate 3, prestress steel heating apparatus 4, temperature sensor 5, percentage
Table 6, controller 7, bar shaped casing 8, heating cable 9, heat conduction baffle 10, cavity 11, handle 12, the 3rd bolt hole 13, alarm
14th, memory 15, the second bolt hole 16.
Embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment 1
Embodiment as shown in Figure 1 and Figure 2 is a kind of concrete bridge beam slab reinforcement means based on pre-stressed steel plate, including 2
Block pre-embedded steel slab 1, pre-stressed steel plate 2,4 blocks of wing plates 3, prestress steel heating apparatus 4, temperature sensor 5, dial gauge 6 and control
Device 7 processed；
Combined as shown in Fig. 22 blocks of wing plates connect with pre-stressed steel plate left part top edge and lower edge and constitute left part respectively
Structure, in addition 2 blocks of wing plates be connected respectively with pre-stressed steel plate right part top edge and lower edge and constitute right part combining structure, left part
Combining structure is connected with 1 piece of pre-embedded steel slab, and right part combining structure is connected with another 1 piece of pre-embedded steel slab；It is each in right part combining structure
Individual 3rd bolt hole 13 is the slotted eye extended along pre-stressed steel plate length direction.As shown in figure 4, controller respectively with temperature
Spend sensor, dial gauge and the electrical connection of prestress steel heating apparatus；
As shown in figure 1, prestress steel heating apparatus includes the strip casing 8 that cross section is in concave shape, located at casing
Plate upper surface on 3 heating cables 9 and located at each bar heat cable on heat conduction baffle 10；Strip tank ends are opened
Mouthful, length direction extension of each bar heating cable along casing；Controller is electrically connected with each bar heating cable, and casing is provided with 2 pairs
Handle 12.
Provided with cavity 11 of the cross section in concave shape in casing, glass fibre cotton is filled with cavity.Heat conduction baffle both sides
Edge is in contact with box inside wall, and heat conduction baffle is made of iron material.Anchoring adhesive is equipped with each chemical bolt.
As shown in figure 5, comprising the following steps：
Step 100, concrete bridge beam slab fluting punching
The mixed of 50cm × 34cm pre-embedded steel slabs can be accommodated by first being dug respectively in concrete bridge beam slab lower surface left part and right part
Solidifying soil box, the depth of 2 concrete pits is 1.1cm；11 the first bolts hole, each first spiral shell are made a call in 2 concrete pits
The depth of keyhole is 11.8cm；
Step 200, pre-embedded steel slab is installed
The second bolt hole 16 as shown in Figure 3 is beaten on 2 pieces of pre-embedded steel slabs, structure is coated 2 pieces of pre-embedded steel slab upper surfaces
Glue, chemical bolt is implanted into each first bolt hole respectively, each chemical bolt of two concrete pits is each passed through two
Each second bolt hole of block pre-embedded steel slab, tightens the nut of each chemical bolt, makes two pieces of pre-embedded steel slabs mixed with two respectively
Solidifying soil box bonding；
Step 300, measurement bolt position and perforate：Measure the position of each chemical bolt, and in left part combining structure and
The 3rd bolt hole 13 as shown in Figure 2 is opened in right part combining structure；
Step 400, pre-stressed steel plate is fixed temporarily
The nut of each chemical bolt of the concrete pit of concrete bridge beam slab left part is unclamped, makes the spiral shell of each chemical bolt
Bar passes through 11 bolts hole of left part combining structure, and screws on the nut of each chemical bolt, is located at pre-stressed steel plate pre-buried
Below steel plate；
Step 500, dial gauge is installed
Bridge post below concrete bridge beam slab right part is provided with dial gauge, makes the measurement of pre-stressed steel plate right-hand member and dial gauge
Bar is in contact；
Step 600, pre-stressed steel plate is heated
Pre-stressed steel plate is put into prestress steel heating apparatus, length threshold W and weld seam shearing resistance are provided with controller
IntensityTemperature sensor is in contact with pre-stressed steel plate, supported prestress steel heating apparatus stabilization with support；
Controller controls prestress steel heating apparatus to heat pre-stressed steel plate, temperature sensor detection pre-stressed steel plate
Temperature, centimeter check pre-stressed steel plate elongation length w '；
2 blocks of wing plates of left part combining structure and right part combining structure are connected by weld seam with pre-stressed steel plate, setting weldering
Stitching shearing strength isThe tensile strength of pre-stressed steel plate is f, left part combining structure and right part combining structure axle center static(al)
Load is M, and M=fA, A is the cross-sectional area of pre-stressed steel plate；
As w ' >=W andWhen, controller control pre-stressed steel plate heater stop heating；
Wherein, H1For fusion length, H2For weld bead height；
Step 700, prestressed steel plate
Temperature sensor, dial gauge is set to be separated with pre-stressed steel plate, by each of the concrete pit of concrete bridge beam slab right part
The screw rod of individual chemical bolt penetrates each the 3rd bolt hole of right part combining structure, tightens the nut of all chemical bolts；Remove
Prestress steel heating apparatus, completes the reinforcing of concrete bridge beam slab.
In the present invention, f=310N/mm2,
M=fA=310 × 1000=310kN, f are design tensile strength, and A is 1000mm2,M/
(2×H1×H2)=310KN/ (2 × 500 × 10)=31N/mm2, H1For 500mm, H2For 10mm.
The size of pre-stressed steel plate is 640cm × 10cm × 1cm, and the thickness of pre-embedded steel slab and wing plate is 1cm, M16's
Chemical bolt 22, diameter 1.6cm, length 19cm, supporting nut thickness are 1.2cm.
Embodiment 2
Embodiment 2 includes all structures and the step part of embodiment 1, as shown in figure 4, also including alarm 14 and storage
Device 15, alarm and memory are electrically connected with the controller；Also include temperature sensor event before the step 600 of embodiment 1
Hinder detecting step：
The normal temperature signal curve of temperature sensor is provided with memory；
(9-1) controller obtains the temperature signal curve S (t) of temperature sensor, when controller is extracted in S (t) with each
Between be spaced corresponding temperature signal value M1..., Mn；The serial number i, i=1 ..., n of design temperature signal value；
(9-2) controller utilizes formulaCalculate each temperature signal value MiSteady rate
ratioi；
As S (t) and ratio of the normal temperature signal curve without intersection point and each temperature signal valueiIt is respectively positioned on [1-A1,1
+ A1] outside scope, then controller control alarm sends the warning message of abnormality of temperature sensors, and A1 is 0.2.
It should be understood that the present embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it is to be understood that
Read after the content of the invention lectured, those skilled in the art can make various changes or modifications to the present invention, these etc.
Valency form equally falls within the application appended claims limited range.
Claims (7)
1. a kind of concrete bridge beam slab reinforcement means based on pre-stressed steel plate, applied to the mixed of concrete bridge beam slab reinforcement means
Solidifying soil bridge plate bracing means includes 2 pieces of pre-embedded steel slabs (1), pre-stressed steel plate (2), 4 pieces of wing plates (3), pre-stressed steel plate heating
Device (4), temperature sensor (5), dial gauge (6) and controller (7)；2 blocks of wing plates respectively with pre-stressed steel plate left part top edge
Connected with lower edge and constitute left part combining structure, in addition 2 blocks of wing plates respectively with pre-stressed steel plate right part top edge and lower edge
Connect and constitute right part combining structure, left part combining structure is connected with 1 piece of pre-embedded steel slab, right part combining structure and another 1 piece it is pre-buried
Steel plate is connected；Controller is electrically connected with temperature sensor, dial gauge and prestress steel heating apparatus respectively；It is characterized in that, bag
Include following steps：
The fluting punching of concrete bridge beam slab：Pre-buried steel can be accommodated by first being dug respectively in concrete bridge beam slab lower surface left part and right part
The concrete pit of plate, the depth of 2 concrete pits is 0.8 to 1.1cm；Several first bolts are played in 2 concrete pits
Hole, the depth of each first bolt hole is 10.8-11.8cm；
Pre-embedded steel slab is installed：The second bolt hole (16) is made a call on 2 pieces of pre-embedded steel slabs, structure is coated 2 pieces of pre-embedded steel slab upper surfaces
Glue, chemical bolt is implanted into each first bolt hole respectively, each chemical bolt of two concrete pits is each passed through two
Each second bolt hole of block pre-embedded steel slab, tightens the nut of each chemical bolt, makes two pieces of pre-embedded steel slabs mixed with two respectively
Solidifying soil box bonding；
Measure bolt position and perforate：The position of each chemical bolt is measured, and in left part combining structure and right part combining structure
On open the 3rd bolt hole (13)；
4 blocks of wing plates are welded to the both sides of pre-stressed steel plate left part and right part；
Pre-stressed steel plate is fixed temporarily：The nut of each chemical bolt of the concrete pit of concrete bridge beam slab left part is unclamped, is made
The screw rod of each chemical bolt passes through each the 3rd bolt hole of left part combining structure, and screws on the nut of each chemical bolt,
Pre-stressed steel plate is set to be located at below pre-embedded steel slab；
Dial gauge is installed：Bridge post below concrete bridge beam slab right part is provided with dial gauge, makes pre-stressed steel plate right-hand member and percentage
The measurement bar of table is in contact；
Heat pre-stressed steel plate：Pre-stressed steel plate is put into prestress steel heating apparatus, length threshold is provided with controller
W, makes temperature sensor be in contact with pre-stressed steel plate, is supported prestress steel heating apparatus stabilization with support；
Controller controls prestress steel heating apparatus to heat pre-stressed steel plate, and temperature sensor detects the temperature of pre-stressed steel plate
Degree, the length w ' of centimeter check pre-stressed steel plate elongation, as w ' >=W, controller control prestress steel heating apparatus stops
Only heat；
Prestressed steel plate：Temperature sensor, dial gauge is set to be separated with pre-stressed steel plate, by the mixed of concrete bridge beam slab right part
The screw rod of each chemical bolt of solidifying soil box penetrates each the 3rd bolt hole of right part combining structure, tightens all chemical bolts
Nut；Prestress steel heating apparatus is removed, the reinforcing of concrete bridge beam slab is completed.
2. the concrete bridge beam slab reinforcement means according to claim 1 based on pre-stressed steel plate, it is characterized in that, it is described pre-
Stress steel plate thermoforming device includes the strip casing (8) that cross section is in concave shape, if on the plate upper surface of casing
Dry bar heating cable (9) and the heat conduction baffle (10) on each bar heating cable；Strip tank ends opening, each bar heating
Length direction extension of the cable along casing；Controller is electrically connected with each bar heating cable.
3. the concrete bridge beam slab reinforcement means according to claim 2 based on pre-stressed steel plate, it is characterized in that, in casing
It is in that glass fibre cotton is filled with the cavity (11) of concave shape, cavity provided with cross section.
4. the concrete bridge beam slab reinforcement means according to claim 2 based on pre-stressed steel plate, it is characterized in that, it is described to lead
Hot dividing plate both sides of the edge are in contact with box inside wall, and heat conduction baffle is made of iron material.
5. the concrete bridge beam slab reinforcement means according to claim 1 based on pre-stressed steel plate, it is characterized in that, each change
Learn and be equipped with anchoring adhesive on bolt.
6. the concrete bridge beam slab reinforcement means according to claim 1 based on pre-stressed steel plate, it is characterized in that, right part group
It is the slotted eye extended along pre-stressed steel plate length direction to close each the 3rd bolt hole in structure.
7. the concrete bridge beam slab reinforcement means based on pre-stressed steel plate according to claim 1 or 2 or 3 or 4 or 5 or 6,
Also include alarm (14) and memory (15), alarm and memory are electrically connected with the controller；It is characterized in that, in addition to temperature
Spend Transducer fault detection step：
The normal temperature signal curve of temperature sensor is provided with memory；
(7-1) controller obtains the temperature signal curve S (t) of temperature sensor, and controller was extracted in S (t) between each time
Every corresponding temperature signal value M1..., Mn；The serial number i, i=1 ..., n of design temperature signal value；
(7-2) controller utilizes formulaCalculate each temperature signal value MiSteady rate ratioi；
As S (t) and ratio of the normal temperature signal curve without intersection point and each temperature signal valueiIt is respectively positioned on [1-A1,1+A1]
Outside scope, then controller control alarm sends the warning message of abnormality of temperature sensors, and A1 is the constant of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144080.7A CN105714697B (en) | 2016-03-14 | 2016-03-14 | Concrete bridge beam slab reinforcement means based on pre-stressed steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144080.7A CN105714697B (en) | 2016-03-14 | 2016-03-14 | Concrete bridge beam slab reinforcement means based on pre-stressed steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105714697A CN105714697A (en) | 2016-06-29 |
| CN105714697B true CN105714697B (en) | 2017-11-03 |
Family
ID=56157558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610144080.7A Active CN105714697B (en) | 2016-03-14 | 2016-03-14 | Concrete bridge beam slab reinforcement means based on pre-stressed steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105714697B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779668B (en) * | 2019-01-16 | 2020-12-25 | 四川同风源建设工程有限公司 | Tunnel jet fan embedded steel plate reinforcing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265720A (en) * | 1997-07-31 | 2000-09-06 | 塞卡股份公司,原卡斯帕魏克拉及两合公司 | Method for fastening flat strip lamella to surface of building component |
| JP2004232376A (en) * | 2003-01-31 | 2004-08-19 | Jfe Engineering Kk | Prestress introducing method utilizing heat contraction by welding |
| CN101619619A (en) * | 2009-07-16 | 2010-01-06 | 重庆交通大学 | Construction method for strengthening concrete component by prestress carbon fiber prepregs |
| CN104314014A (en) * | 2014-10-11 | 2015-01-28 | 岩土科技股份有限公司 | Method of reinforcing concrete bridge by prestressed steel plates |
| JP2015024367A (en) * | 2013-07-25 | 2015-02-05 | Ｊｆｅエンジニアリング株式会社 | Coating peeling method |
-
2016
- 2016-03-14 CN CN201610144080.7A patent/CN105714697B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265720A (en) * | 1997-07-31 | 2000-09-06 | 塞卡股份公司,原卡斯帕魏克拉及两合公司 | Method for fastening flat strip lamella to surface of building component |
| JP2004232376A (en) * | 2003-01-31 | 2004-08-19 | Jfe Engineering Kk | Prestress introducing method utilizing heat contraction by welding |
| CN101619619A (en) * | 2009-07-16 | 2010-01-06 | 重庆交通大学 | Construction method for strengthening concrete component by prestress carbon fiber prepregs |
| JP2015024367A (en) * | 2013-07-25 | 2015-02-05 | Ｊｆｅエンジニアリング株式会社 | Coating peeling method |
| CN104314014A (en) * | 2014-10-11 | 2015-01-28 | 岩土科技股份有限公司 | Method of reinforcing concrete bridge by prestressed steel plates |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105714697A (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104809312B (en) | Pile In Karst Area supporting course safe thickness computational methods | |
| CN105714696B (en) | Concrete bridge beam slab reinforcement means | |
| CN106758562A (en) | The installation method that track foundation built-in fitting is integrally fixed with track | |
| CN106245821A (en) | A kind of lightweight steel construction lightweight concrete prefabrication and assembly construction body of wall and construction method thereof | |
| CN109706846A (en) | High, narrow bridge bent cap punching rod iron construction method for sloped ground | |
| CN105714697B (en) | Concrete bridge beam slab reinforcement means based on pre-stressed steel plate | |
| CN207881916U (en) | Sustainable load, the experimental provision for adjusting height of water level and shear direction rigidity | |
| CN105863289A (en) | Steel structure spatial system for reinforcement and construction method thereof | |
| CN106932254B (en) | Light-gauge steel section and foam concrete interface sliding method for testing performance | |
| CN105019598B (en) | A kind of cutting armored concrete surface layer strengthens light weight board | |
| CN109056737A (en) | Deep basal pit outer wall of basement integrates the construction method of one side formwork support system | |
| CN105220807A (en) | For box body hollow anti-floating system and the method for cast-in-situ concrete hollow floor | |
| CN110670734A (en) | Fixing device for pre-buried steel plate under shock insulation support and construction method thereof | |
| CN108414362A (en) | A kind of multipurpose model test platform | |
| CN211042900U (en) | Hollow model pile and pouring device thereof | |
| CN205443971U (en) | A steel plate structure for reinforcing concrete bridge plate | |
| CN105780672B (en) | Prestress steel heating apparatus and control method | |
| CN111236632A (en) | Construction method of heavy bracket and profile steel combined supporting system for super-thick top plate | |
| Ferrara et al. | Flexural behaviour of timber-concrete composite floor systems linearly supported at two edges | |
| CN104790533B (en) | Fabricated construction preformed hole starches anchor lapping construction method under a kind of low temperature environment | |
| CN107655740B (en) | Device and method for manufacturing test piece capable of testing shear strength of joint surfaces of different anchoring angles | |
| CN105442736A (en) | Anti-floating construction method for cast-in-place concrete hollow floor sectional type combined device | |
| CN108797658A (en) | A kind of assembly concrete prefabricated tubular pile detection device and its application method | |
| CN211714007U (en) | Construction elevator foundation structure | |
| Nawy et al. | Crack width control in reinforced concrete two-way slabs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Reinforcement method of concrete bridge slab based on prestressed steel plate Effective date of registration: 20220704 Granted publication date: 20171103 Pledgee: China Construction Bank Co.,Ltd. Fuyang Branch of Hangzhou Pledgor: GEOTECHNICAL TECHNOLOGY Co.,Ltd. Registration number: Y2022980009767 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20171103 Pledgee: China Construction Bank Co.,Ltd. Fuyang Branch of Hangzhou Pledgor: GEOTECHNICAL TECHNOLOGY Co.,Ltd. Registration number: Y2022980009767 |