CN109811965A - It is a kind of to be bolted high strength steel plate spliced girder-concrete slab combination beam entirely - Google Patents

It is a kind of to be bolted high strength steel plate spliced girder-concrete slab combination beam entirely Download PDF

Info

Publication number
CN109811965A
CN109811965A CN201910107409.6A CN201910107409A CN109811965A CN 109811965 A CN109811965 A CN 109811965A CN 201910107409 A CN201910107409 A CN 201910107409A CN 109811965 A CN109811965 A CN 109811965A
Authority
CN
China
Prior art keywords
steel plate
steel
rod segment
strength
strength steel
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.)
Pending
Application number
CN201910107409.6A
Other languages
Chinese (zh)
Inventor
罗云标
陈跃波
林旭川
孙硕科
严加宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University
Original Assignee
Tianjin University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201910107409.6A priority Critical patent/CN109811965A/en
Publication of CN109811965A publication Critical patent/CN109811965A/en
Pending legal-status Critical Current

Links

Abstract

It is bolted high strength steel plate spliced girder-concrete slab combination beam entirely the invention discloses a kind of, the combination beam is bolted the top flange of upper high strength steel plate and left U-steel, right U-steel by section weakening type, concrete slab support, is arranged in the top flange of upper high strength steel plate by the lower flange that lower high strength steel plate and left U-steel, right U-steel are connected by traditional high-strength bolt.Being bolted entirely for combination beam is completed, the section of section weakening type bolt weakens the top that section should be located at nut above spliced girder top flange.The combination beam not only simple structure, construction is convenient and quick, stiffness and strength are high, economic performance is excellent, high strength steel plate is avoided to be welded to connect the problems such as technical requirements are high, and section weakening type bolt as the lesion element in combination beam and sacrifices element, its deformability is good, avoid the damage of high-strength girder steel, the Internal Force Redistribution ability and ductility for improving combination beam realize reasonable destruction sequence.

Description

It is a kind of to be bolted high strength steel plate spliced girder-concrete slab combination beam entirely
Technical field
The invention belongs to the building-supporting component ranges of bridge and building, in particular to are applied to highway bridge, railway bridge Beam and industry and one kind of civil buildings floor system are bolted high strength steel plate spliced girder-concrete slab combination beam entirely.
Background technique
Existing reinforced beam be by reinforcing bar and coagulation local soil type at supporting member, have the shortcomings that volume, from great. Combination beam can reduce structure height, mitigate self weight, and then reduce by the way that girder steel and coagulation local soil type are combined common stress The sectional dimension and foundation load of vertical supporting member.Compared with clean steel beam, combination beam can then reduce steel using amount, increase just Degree, and reduce structure height, enhance corrosion resistance and durability.High-strength girder steel and coagulation are realized by stud shear connector The combination of native plate gives full play to the advantage that high-strength steel tensile strength is high, concrete crushing strength is good, it is rigid to overcome pure high-strength girder steel Spend disadvantage small, that deformation is big.It is bolted high strength steel plate spliced girder-concrete slab combination beam entirely and is not only convenient for high strength steel plate disassembly Recycling and utilization afterwards, and high-strength girder steel and concrete slab are overcome using traditional weld stud as shear connector institute The requirement of the welding technique of existing high strength steel plate and weld stud is high, welding quality is difficult to ensure, steel in the heat affected area of weld seam The material of material becomes fragile, is inevitably generated under residual stress and residual deformation, low temperature in structure brittle failure, speed of application easily occurs Slowly, the disadvantages of working procedure is complicated.
Summary of the invention
The purpose of the present invention is to overcome the disadvantages of the prior art, provides a kind of simple structure, convenient and quick, rigidity of constructing With intensity is higher, economic performance is preferably bolted high strength steel plate spliced girder-concrete slab combination beam entirely.
Technical scheme is as follows:
One kind of the invention is bolted high strength steel plate spliced girder-concrete slab combination beam, including left and right relative spacing entirely Two webs of the left U-steel and right U-steel being arranged, the left U-steel and right U-steel are parallel to each other to be arranged close to, The left and right sides support of one piece of upper high strength steel plate is arranged on the top flange roof of the left U-steel and right U-steel, along slot The length direction of fashioned iron, in the upper high strength steel plate and left slot of the top flange contact position of the upper high strength steel plate and left U-steel On fashioned iron and on the upper high strength steel plate and right U-steel of the top flange contact position of the upper high strength steel plate and right U-steel Time interval is provided with multiple connecting holes respectively, concrete slab is equipped on the upper high strength steel plate, in the concrete The left and right sides of plate position corresponding with multiple connecting holes has preformed hole, in each preformed hole and is corresponding to it A section weakening type bolt is respectively connected in the connecting hole of setting;
The section weakening type bolt includes the bolt that top has nut, and the bolt includes successively phase from top to bottom Be connected with the Smooth rod segment set, necking down rod segment, upper screw thread rod segment, under smooth rod segment and lower screw thread rod segment, wherein glazing slide bar Section diameter, under smooth rod segment diameter, upper screw thread rod segment diameter, lower screw thread rod segment diameter it is consistent, the minimum of the necking down rod segment is horizontal Diameter of section is less than the diameter of upper screw thread rod segment, lower nut and lower gasket is connected in the lower screw thread rod segment, described Upper screw thread rod segment is connected with top nut and Upper gasket, and plastic screw sleeve, plastic spiral rod set are cased in the necking down rod segment Barrel thickness is 2-3mm;
The top flange that the lower gasket of each section weakening type bolt is fixed on respective side slot fashioned iron by screwing lower nut On bottom wall, the Upper gasket of each section weakening type bolt is tightened on the roof of upper high strength steel plate by top nut, is located at The section weakening type bolt part on upper high strength steel plate top is arranged in concrete slab;
The left and right sides of one piece of lower high strength steel plate, institute is arranged in the lower flange support of the left U-steel and right U-steel The lower flange of the left U-steel and right U-steel stated passes through multiple traditional high-strength bolts with lower high strength steel plate respectively and connect.
The present invention has the following advantages that compared with the existing technology and protrudes effect:
By being bolted entirely between high strength steel plate and high strength steel plate, avoids high strength steel plate welding technique and require high, weldering Connect difficult problem.
By being bolted entirely between high strength steel plate and concrete slab, convenient for the recycling and utilization after high strength steel plate disassembly.
High-strength girder steel is combined using traditional weld stud as shear connector connection with concrete slab, and there are high-strength steel The welding quality of plate and weld stud is difficult to ensure, the demanding problem of welding technique.And high-strength girder steel passes through with concrete slab It is bolted combination entirely, then can give full play to the advantage that high strength steel plate compression strength is high, concrete crushing strength is good, overcome pure The disadvantage that high brutal rigidity is small, deformation is big.
Weakening type stud shear connector in section is as the lesion element in combination beam and sacrifices element, deformability It is good, the damage of high-strength girder steel is avoided, the Internal Force Redistribution ability of combination beam and the ductility of combination beam are improved, realizes reasonable destroy Sequentially.
It is bolted high strength steel plate spliced girder-concrete slab combination beam simple structure, convenient and quick, rigidity of constructing and strong entirely Degree is higher, economic performance is more excellent.
Detailed description of the invention
Fig. 1 is bolted high strength steel plate spliced girder-concrete slab combination beam structural schematic diagram for of the invention entirely;
Fig. 2 is the cross-sectional view of combination beam shown in Fig. 1;
Fig. 3 is the skiagraph of combination beam shown in Fig. 1;
Fig. 4 is that the U-steel in combination beam shown in Fig. 1 is attached with high strength steel plate using existing stud shear connector Structural schematic diagram;
Fig. 5 is that high strength steel plate, U-steel and the concrete slab in combination shown in Fig. 1 are connected using section weakening type stud shear The structural schematic diagram that fitting is attached;
Fig. 6 is the knot of section weakening type the stud shear connector attaching nut and gasket in connection structure shown in fig. 5 Structure schematic diagram;
Fig. 7 is the section weakening type stud shear connector detail structure figure in connection structure shown in fig. 5.
Specific embodiment
With reference to the accompanying drawing, detailed description of the preferred embodiments.
As shown in the picture, between one kind being bolted high strength steel plate spliced girder-concrete slab combination beam entirely, including left and right is opposite Every the left U-steel 2-1 and right U-steel 2-2 of setting, two webs of the left U-steel 2-1 and right U-steel 2-2 are each other Parallel and near to setting, the left U-steel 2-1 and right U-steel is arranged in the left and right sides support of one piece of upper high strength steel plate 1-1 On the top flange roof of 2-2.Along the length direction of U-steel, in the upper limb of the upper high strength steel plate 1-1 and left U-steel 2-1 On the upper high strength steel plate 1-1 and left U-steel 2-1 of edge contact position and the upper high strength steel plate 1-1 and right U-steel 2-2 Top flange contact position upper high strength steel plate 1-1 and right U-steel 2-2 on respectively time interval be provided with multiple connecting holes, in institute Concrete slab 5 is installed on the upper high strength steel plate 1-1 stated, the left and right sides and multiple companies in the concrete slab 5 It connects the corresponding position in hole and has preformed hole.In each preformed hole and it is corresponding to it in the connecting hole of setting and is respectively connected with one Section weakening type bolt 4.
The section weakening type bolt 4 includes the bolt that top has nut, and the bolt includes from top to bottom successively Be connected setting Smooth rod segment 8, necking down rod segment 11, upper screw thread rod segment 14, under smooth rod segment 12 and lower screw thread rod segment 15.Its In, 8 diameter of Smooth rod segment, under smooth 12 diameter of rod segment, upper 14 diameter of screw thread rod segment, lower 15 diameter of screw thread rod segment it is consistent.Institute The minimum cross sectional diameter for stating necking down rod segment 11 is less than the diameter of upper screw thread rod segment 14, is connected in the lower screw thread rod segment 15 Lower nut 9-1 and lower gasket 10-1 is connected with top nut 9-2 and Upper gasket 10-2 in the upper screw thread rod segment, described Plastic screw sleeve 13 is cased in necking down rod segment 11.Plastic screw sleeve 13 should have 2-3mm wall thickness with strengthen rigidity and intensity, prevent It is only deformed in necking down rod segment 11 by the pressure of high-strength mortar, enhancing is brought to weaken the adverse effect of section rigidity.
The lower gasket 10-1 of each section weakening type bolt 4 is fixed on respective side slot fashioned iron by screwing lower nut 9-1 On the bottom wall of top flange, the Upper gasket 10-2 of each section weakening type bolt 4 is tightened by top nut 9-2 in upper high-strength steel On the roof of plate 1-1.Section weakening type bolt part positioned at the top upper high strength steel plate 1-1 is arranged in concrete slab 5.
A left side of one piece of lower high strength steel plate 1-2 is arranged in the lower flange support of the left U-steel 2-1 and right U-steel 2-2 The lower flange of right two sides, the left U-steel 2-1 and right U-steel 2-2 and lower high strength steel plate 1-2 pass through multiple tradition respectively High-strength bolt 3 connects.
The high strength steel plate refers to trade mark Q460 steel.The high-strength bolt refer to bolt performance rate be 8.8 grades and 10.9 grades of bolt.
As shown in figure 5, concrete slab 5 is if cast in place concrete plate: in combination beam steel construction part top flange upper surface branch Mould successively binds board bottom muscle 7, plate face muscle 6, casting concrete, maintenance, demoulding;Concrete slab 5 is if precast slab: Precast slab of the prefabrication with preformed hole, lifting is seated in combination beam steel construction part top flange upper surface, to coagulation After the preformed hole filling high-strength mortar of native plate, conserved.
The preferred necking down rod segment 11 uses outer profile any for arc-shaped concave, half round concave, triangular shaped recess surface etc. Weaken the necking down structure of effect with section.Necking down rod segment 11 should be located at the top of upper high strength steel plate 1-1.The work of necking down rod segment 11 The deformability that bolt was shifted to necking down rod segment 11 and enhanced in position is destroyed with for induction.
The above-mentioned description of this invention is that this hair can be understood and applied for the ease of those skilled in the art It is bright.The personnel for being familiar with the field technology obviously easily can make various modifications to the present invention, and be applied to other embodiments In go without having to go through creative labor.Therefore, the present invention is not limited to embodiments here, and those skilled in the art are according to this The announcement of invention, improvement and modification made without departing from the scope of the present invention all should be within protection scope of the present invention.

Claims (2)

1. a kind of be bolted high strength steel plate spliced girder-concrete slab combination beam entirely, it is characterised in that: including left and right relative spacing Two webs of the left U-steel and right U-steel being arranged, the left U-steel and right U-steel are parallel to each other to be arranged close to, The left and right sides support of one piece of upper high strength steel plate is arranged on the top flange roof of the left U-steel and right U-steel, along slot The length direction of fashioned iron, in the upper high strength steel plate and left slot of the top flange contact position of the upper high strength steel plate and left U-steel On fashioned iron and on the upper high strength steel plate and right U-steel of the top flange contact position of the upper high strength steel plate and right U-steel Time interval is provided with multiple connecting holes respectively, concrete slab is equipped on the upper high strength steel plate, in the concrete The left and right sides of plate position corresponding with multiple connecting holes has preformed hole, in each preformed hole and is corresponding to it A section weakening type bolt is respectively connected in the connecting hole of setting;
The section weakening type bolt includes the bolt that top has nut, and the bolt includes being sequentially connected to set from top to bottom The Smooth rod segment set, necking down rod segment, upper screw thread rod segment, under smooth rod segment and lower screw thread rod segment, wherein Smooth rod segment is straight Diameter, under smooth rod segment diameter, upper screw thread rod segment diameter, lower screw thread rod segment diameter it is consistent, the minimum cross-section of the necking down rod segment Diameter is less than the diameter of upper screw thread rod segment, lower nut and lower gasket is connected in the lower screw thread rod segment, in the upper spiral shell Rasp bar section is connected with top nut and Upper gasket, and plastic screw sleeve, plastic screw sleeve wall are cased in the necking down rod segment Thickness is 2-3mm;
The bottom wall that the lower gasket of each section weakening type bolt is fixed on the top flange of respective side slot fashioned iron by screwing lower nut On, the Upper gasket of each section weakening type bolt is tightened on the roof of upper high strength steel plate by top nut, is located at upper height The section weakening type bolt part on strong steel plate top is arranged in concrete slab;
The left and right sides of one piece of lower high strength steel plate is arranged in the lower flange support of the left U-steel and right U-steel, described The lower flange of left U-steel and right U-steel passes through multiple traditional high-strength bolts with lower high strength steel plate respectively and connect.
2. according to claim 1 be bolted high strength steel plate spliced girder-concrete slab combination beam entirely, it is characterised in that: The necking down rod segment uses outer profile for arc-shaped concave, half round concave or triangular shaped recess surface necking down structure.
CN201910107409.6A 2019-02-02 2019-02-02 It is a kind of to be bolted high strength steel plate spliced girder-concrete slab combination beam entirely Pending CN109811965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910107409.6A CN109811965A (en) 2019-02-02 2019-02-02 It is a kind of to be bolted high strength steel plate spliced girder-concrete slab combination beam entirely

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910107409.6A CN109811965A (en) 2019-02-02 2019-02-02 It is a kind of to be bolted high strength steel plate spliced girder-concrete slab combination beam entirely

Publications (1)

Publication Number Publication Date
CN109811965A true CN109811965A (en) 2019-05-28

Family

ID=66606357

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910107409.6A Pending CN109811965A (en) 2019-02-02 2019-02-02 It is a kind of to be bolted high strength steel plate spliced girder-concrete slab combination beam entirely

Country Status (1)

Country Link
CN (1) CN109811965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111042435A (en) * 2019-12-24 2020-04-21 太原理工大学 Assembled combined H-shaped section steel beam and assembling method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111042435A (en) * 2019-12-24 2020-04-21 太原理工大学 Assembled combined H-shaped section steel beam and assembling method thereof

Similar Documents

Publication Publication Date Title
CN104831617B (en) Steel-ultra-high performance concrete combination beam based on fin-plate type bridge floor and construction method
CN103924505B (en) Use prefabricated steel-concrete combination T beam and the construction method of Wavelike steel webplate
CN102086677A (en) Prefabricated reinforced concrete beam and connection joint of reinforced concrete column and beam
CN107245934A (en) A kind of assembled steel profiled sheet concrete combined board small box girder
CN206625402U (en) A kind of side intersection of cracking is put more energy into profiled sheet shear wall
CN104847129A (en) Method for constructing fastening device of reinforced concrete girder and floor slab
CN104674657A (en) Profiled steel sheet-UHP (ultra high performance) fiber reinforced concrete composite bridge deck
CN105839510A (en) Steel-ultra-high-performance concrete combined continuous beam bridge structure and construction method thereof
CN109811965A (en) It is a kind of to be bolted high strength steel plate spliced girder-concrete slab combination beam entirely
CN106436969B (en) A kind of side intersection of cracking is put more energy into profiled sheet shear wall
CN110924303B (en) Steel beam and built-in steel reinforced concrete slab continuous combination beam and construction method
CN106545115A (en) Assembled steel Combined concrete superstructure and its construction method
KR100581224B1 (en) X shape cantilever column capital
WO2020134402A1 (en) Structural steel, structural steel-uhpc composite slabs and bridge deck
CN211037391U (en) Shear wall structure for optimizing stress distribution
CN203514528U (en) Composite connection structure of concrete filled steel tubular column and thin steel plate shear wall
CN206554385U (en) Combining structure for assembled architecture
CN209855047U (en) Full-bolt-connection high-strength steel plate assembled beam-concrete slab combined beam
CN207878254U (en) A kind of assembled light combination beam freely-supported structure changes continuous structure
CN205474785U (en) Steel - ultra high performance concrete combination continuous bridge structure
CN110644662A (en) Prefabricated flat slab composite slab based on stress and splitting method thereof
JP2004270400A (en) Pedestal structure and precast segment
CN212426678U (en) Assembled light steel sheet composite beam bridge structure
CN211200025U (en) Shaped steel and concrete combined bridge
CN211736030U (en) Light prefabricated high-strength laminated slab

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination