CN108416108B - Finite element modeling method for designing steel-concrete combined beam stud connecting piece - Google Patents
Finite element modeling method for designing steel-concrete combined beam stud connecting piece Download PDFInfo
- Publication number
- CN108416108B CN108416108B CN201810115636.9A CN201810115636A CN108416108B CN 108416108 B CN108416108 B CN 108416108B CN 201810115636 A CN201810115636 A CN 201810115636A CN 108416108 B CN108416108 B CN 108416108B
- Authority
- CN
- China
- Prior art keywords
- model
- steel
- concrete
- stud
- connecting piece
- 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
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
Abstract
The invention discloses a finite element modeling method for designing a stud connecting piece of a steel-concrete combined beam. The method of the invention writes scripts to control and establish a solid three-dimensional model of the stud connector steel-concrete composite beam with different diameters, heights, intervals and material characteristics through a Python language interface of finite element software ABAQUS, and carries out statics calculation analysis on the model. The invention fully considers the nonlinearity and damage characteristics of the material, accurately simulates the interaction of the steel beam, the steel bar, the concrete wing plate and the stud connecting piece, can obtain the stress and deformation of the combination beam and the connecting piece, and provides a basis for the design of the stud connecting piece of the combination beam. The invention effectively reduces the repetitive work by using the parametric modeling, has clear module framework thought and is convenient for technical personnel to master and use.
Description
The technical field is as follows:
the invention relates to a finite element modeling method for designing a steel-concrete combined beam stud connecting piece, belonging to the technical field of civil traffic engineering design.
Background art:
a steel-concrete composite beam is one of the structural forms that has wide applications in highway and urban bridge engineering. In the steel-concrete composite beam, the shear connector serves as a key part for combining the steel beam and the concrete wing plate to work together, plays a role in transmitting longitudinal shear between the steel beam and the concrete wing plate, and is a premise that the steel-concrete composite beam can fully exert bearing capacity. The stud connectors, the most commonly used shear connectors, have a significant impact on the performance of the composite beam by how their number and gauge are designed.
Many researchers at home and abroad adopt various means such as theoretical analysis, experimental research and numerical simulation to research the flexural failure process and failure mechanism of the steel-concrete composite beam with different stud connecting piece arrangements, and calculate the reliability of the application. However, for the composite beam with a weak connection degree, the steel beam and the concrete have larger interface slippage after the beam is bent, the calculation model no longer conforms to the assumption of a flat section, and the bearing capacity of the composite beam is difficult to determine through theoretical analysis. And the experimental research cost is high, the period is long, and a plurality of limitations exist. Therefore, the numerical simulation is gradually widely applied due to wide coverage, convenience, flexibility, low design cost and short period.
At present, finite element simulation research is carried out in the field of steel-concrete composite beams, and stud connecting pieces are mostly simulated by beam units or even spring units, so that the stress and deformation states of a nail body cannot be researched; and the geometric modeling operation is complicated only by a finite element GUI mode, and the repetitive workload is large. The invention writes scripts to control and establish the solid three-dimensional model of the steel-concrete composite beam with different stud connectors through the Python language interface of the finite element software ABAQUS, and the method is simple and convenient and is easy to master. The method can provide a basis for analyzing the actual working performance of the stud in the composite beam so as to obtain a more reasonable connecting piece arrangement mode, provides technical reference for popularization and application of the composite beam in actual bridge engineering, and has higher engineering significance.
Disclosure of Invention
The invention aims to provide a finite element modeling method for designing a steel-concrete combined beam stud connecting piece, which solves the problems that the stress and deformation state of a stud body cannot be researched and the problems of complicated geometric modeling operation and large repetitive workload.
The above purpose is realized by the following technical scheme:
a finite element modeling method for designing a stud connector of a steel-concrete combined beam is characterized in that a script is compiled through a Python language interface of finite element software ABAQUS, a stud connector steel-concrete combined beam entity three-dimensional model with different diameters, heights, intervals and material characteristics is established by script control, and the model is subjected to static calculation analysis.
The finite element modeling method for designing the stud connecting piece of the steel-concrete combined beam is characterized in that the stud connecting piece steel-concrete combined beam entity consists of a steel beam, a reinforcing steel bar, a concrete wing plate and a stud connecting piece, and the connection relationship among the parts is as follows: the stud connecting piece and the steel beam are bound and restrained and are in hard contact with the surface of the hole of the concrete wing plate; the upper surface of the steel beam is in friction hard contact with the lower surface of the concrete wing plate; the reinforcing steel bars are embedded in the concrete wing plates.
In the finite element modeling method for designing the stud connecting piece of the steel-concrete combined beam, in the solid three-dimensional model of the stud connecting piece of the steel-concrete combined beam, a solid unit model is built on a steel beam according to the actual size, and a material model is bilinear; the steel bar is simulated by adopting a truss unit according to the actual cross-sectional area, and the material model is bilinear; building a solid unit model of the concrete wing plate according to the actual size, wherein the material model is a concrete plastic damage model; the stud connecting piece establishes an entity unit model according to the selected size, the material model is plastic, and a plastic curve is obtained according to actual measurement of a stud tensile test.
The finite element modeling method for designing the stud connector of the steel-concrete composite beam is characterized in that a script is written through a Python language interface of finite element software ABAQUS, and the concrete method for establishing a stud connector steel-concrete composite beam entity three-dimensional model with different diameters, heights, intervals and material characteristics comprises the following steps:
(1) establishing an early-stage geometric model:
the Python language is adopted to write scripts, values are assigned to parameter variables of the number n of the studs, the distance d, the height h, the head radius r1 and the rod radius r2, and the following models are built according to the values:
firstly, establishing a steel beam section model with the length of d, and marking as a model A;
secondly, establishing a stud model with the height h, the head radius r1 and the rod radius r2, and marking as a model B;
thirdly, establishing a concrete wing plate section model with the length d, and marking as a model C;
combining the model A and the model B to generate a steel beam section with the stud and completing segmentation, and marking as a model D;
tangent model B and model C to generate concrete wing plate section with holes and complete the segmentation, and marking as model E;
(2) assembling a final geometric model:
adopting Python language to compile a script, and splicing and combining the models in the step (1):
firstly, arraying n models D, modifying the lengths of steel beam sections at two ends to be the length of the assembled whole length, and merging and recording as a model F;
secondly, arraying n models E, modifying the lengths of the concrete wing plate sections at two ends to the full length of the assembled concrete wing plate section to be the length of a beam, and combining and recording the length as a model G;
thirdly, establishing a truss unit reinforcement cage, and marking as a model H;
fourthly, the model F, the model G and the model H are spliced to generate a final geometric model;
(3) defining material section parameters for the steel beam, the steel bar, the concrete wing plate and the stud connecting piece respectively;
(4) setting boundary conditions and dividing grids;
(5) and calculating by adopting a hidden test algorithm, and analyzing the stress state of each part aiming at the stress and deformation cloud pictures.
According to the finite element modeling method for designing the steel-concrete combined beam stud connecting piece, when the model is subjected to static calculation analysis, the following data are obtained through calculation: under the action of deflection, the maximum deflection of the steel-concrete combined beam of the stud connecting piece with different diameters, heights, intervals and material characteristics, the maximum stress of the steel beam, the steel bar and the stud connecting piece, the plastic damage distribution of the concrete wing plate, the longitudinal slippage between the steel beam and the concrete wing plate and the deformation state of the stud connecting piece are adopted.
The invention has the following beneficial effects:
1. the invention fully considers the nonlinearity and damage characteristics of the material, accurately simulates the interaction of the steel beam, the steel bar, the concrete wing plate and the stud connecting piece, can obtain the stress and deformation of the combination beam and the connecting piece, and provides a basis for the design of the stud connecting piece of the combination beam. The method effectively reduces repetitive work by using parametric modeling, has clear module framework thought, and is convenient for technical personnel to master and use.
Drawings
FIG. 1 is a flow chart of a finite element modeling method for a steel-concrete composite beam stud connector design;
FIG. 2 is an integral model of a stud connector steel-concrete composite beam;
FIG. 3 is a sectional view of a stud connector steel-concrete composite beam;
FIG. 4 is a stress-strain relationship curve for concrete, wherein FIG. 4(a) is a compressive stress-strain curve; FIG. 4(b) is a tensile stress-strain curve;
FIG. 5 is a stress-strain curve for steel, wherein FIG. 5(a) is a stress-strain curve for a steel beam; FIG. 5(b) is a stress-strain curve of a steel bar; FIG. 5(c) is a stress-strain curve for a peg;
FIG. 6 is a load-deflection curve of a steel-concrete composite beam under bending load;
FIG. 7 is a slip-deflection curve of a steel-concrete composite beam under bending load;
reference numbers in the figures: 1-a steel beam; 2-concrete wing plate; 3-reinforcing steel bars; 4-a stud connector.
Detailed Description
The present invention will be further illustrated below with reference to specific embodiments, which are to be understood as merely illustrative and not limitative of the scope of the present invention.
A finite element modeling method for designing a stud connector of a steel-concrete combined beam is characterized in that a script is compiled through a Python language interface of finite element software ABAQUS, a stud connector steel-concrete combined beam entity three-dimensional model with different diameters, heights, intervals and material characteristics is established by script control, and the model is subjected to static calculation analysis.
The finite element modeling method for designing the stud connecting piece of the steel-concrete combined beam is characterized in that the stud connecting piece steel-concrete combined beam entity consists of a steel beam, a reinforcing steel bar, a concrete wing plate and a stud connecting piece, and the connection relationship among the parts is as follows: the stud connecting piece and the steel beam are bound and restrained and are in hard contact with the surface of the hole of the concrete wing plate; the upper surface of the steel beam is in friction hard contact with the lower surface of the concrete wing plate; the reinforcing steel bars are embedded in the concrete wing plates.
In the finite element modeling method for designing the stud connecting piece of the steel-concrete combined beam, in the solid three-dimensional model of the stud connecting piece of the steel-concrete combined beam, a solid unit model is built on a steel beam according to the actual size, and a material model is bilinear; the steel bar is simulated by adopting a truss unit according to the actual cross-sectional area, and the material model is bilinear; building a solid unit model of the concrete wing plate according to the actual size, wherein the material model is a concrete plastic damage model; the stud connecting piece establishes an entity unit model according to the selected size, the material model is plastic, and a plastic curve is obtained according to actual measurement of a stud tensile test.
The finite element modeling method for designing the stud connector of the steel-concrete composite beam is characterized in that a script is written through a Python language interface of finite element software ABAQUS, and the concrete method for establishing a stud connector steel-concrete composite beam entity three-dimensional model with different diameters, heights, intervals and material characteristics comprises the following steps:
(1) establishing an early-stage geometric model:
the Python language is adopted to write scripts, values are assigned to parameter variables of the number n of the studs, the distance d, the height h, the head radius r1 and the rod radius r2, and the following models are built according to the values:
firstly, establishing a steel beam section model with the length of d, and marking as a model A;
secondly, establishing a stud model with the height h, the head radius r1 and the rod radius r2, and marking as a model B;
thirdly, establishing a concrete wing plate section model with the length d, and marking as a model C;
combining the model A and the model B to generate a steel beam section with the stud and completing segmentation, and marking as a model D;
tangent model B and model C to generate concrete wing plate section with holes and complete the segmentation, and marking as model E;
(2) assembling a final geometric model:
adopting Python language to compile a script, and splicing and combining the models in the step (1):
firstly, arraying n models D, modifying the lengths of steel beam sections at two ends to be the length of the assembled whole length, and merging and recording as a model F;
secondly, arraying n models E, modifying the lengths of the concrete wing plate sections at two ends to the full length of the assembled concrete wing plate section to be the length of a beam, and combining and recording the length as a model G;
thirdly, establishing a truss unit reinforcement cage, and marking as a model H;
fourthly, the model F, the model G and the model H are spliced to generate a final geometric model;
(3) defining material section parameters for the steel beam, the steel bar, the concrete wing plate and the stud connecting piece respectively;
(4) setting boundary conditions and dividing grids;
(5) and calculating by adopting a hidden test algorithm, and analyzing the stress state of each part aiming at the stress and deformation cloud pictures.
According to the finite element modeling method for designing the steel-concrete combined beam stud connecting piece, when the model is subjected to static calculation analysis, the following data are obtained through calculation: under the action of deflection, the maximum deflection of the steel-concrete combined beam of the stud connecting piece with different diameters, heights, intervals and material characteristics, the maximum stress of the steel beam, the steel bar and the stud connecting piece, the plastic damage distribution of the concrete wing plate, the longitudinal slippage between the steel beam and the concrete wing plate and the deformation state of the stud connecting piece are adopted.
The following specific examples are illustrated:
at present, to establish a stud connector steel-concrete composite beam ABAQUS finite element model with a calculated span of 3 meters and calculate the stress state of the stud connector steel-concrete composite beam within 80mm midspan load, the completed integral model and the cut-off model are shown in fig. 2 and fig. 3. The width of the concrete wing plate of the composite beam is 300mm, and the height of the concrete wing plate is 80 mm; the steel beam is formed by welding steel plates with the thickness of 10mm, the width of the upper flange plate is 120mm, the width of the lower flange plate is 160mm, and the height of the web plate is 150 mm. The concrete wing plate is internally provided with an upper layer and a lower layer of 3 phi 6 longitudinal steel bars respectively, and the stirrup is phi 6@ 200. The connecting pieces are arranged in phi 13 bolt double rows, the longitudinal distance is 400mm, and the transverse distance is 60 mm. The unit types and material properties of each part are as follows:
(1) selecting solid units C3D8R for simulation, testing the cubic compressive strength of the concrete at the strength grade of C50, and converting to obtain the concrete fc＝38.3MPa，ft2.84 MPa. The stress-strain relationship curve input by using the plastic damage constitutive model is shown in fig. 4.
(2) The steel beam is simulated by using a solid unit C3D8R, the strength grade is Q235, and the actually measured yield strength is 352 MPa. With the dual linear plastic constitutive, the stress-strain relationship curve of the input is shown in fig. 5 (a).
(3) The steel bar is modeled and simulated by a truss unit T3D2 according to the actual section area, and the actual measurement yield strength is 365MPa and the ultimate strength is 508 MPa. With the dual linear plastic constitutive, the stress-strain relationship curve of the input is shown in fig. 5 (b).
(4) The stud connector is simulated by using a solid unit C3D8R, and an input stress-strain relation curve is obtained by actual measurement in a tensile test by using a plastic structure and is shown in fig. 5 (C).
The actual modeling process is as follows:
(1) early stage geometric model building
The Python language is used to write scripts, the parameter variables are assigned with the number of pins n being 4, the spacing d being 400mm, the height h being 60mm, the head radius r1 being 22mm, and the shaft radius r2 being 13mm, and the following models are built accordingly:
firstly, establishing a steel beam section model with the length of d, and marking as a model A;
secondly, establishing a stud model with the height h, the head radius r1 and the rod radius r2, and marking as a model B;
thirdly, establishing a concrete wing plate section model with the length d, and marking as a model C;
combining the model A and the model B to generate a steel beam section with the stud and completing segmentation, and marking as a model D;
and fifthly, tangent the model B with the model C to generate a concrete wing plate section with holes and finish the segmentation, and marking as a model E.
(2) Final geometric model assembly
Adopting Python language to compile a script, and splicing and combining the models in the step (1):
firstly, arraying n models D, modifying the lengths of steel beam sections at two ends to be the length of the assembled whole length, and merging and recording as a model F;
secondly, arraying n models E, modifying the lengths of the concrete wing plate sections at two ends to the full length of the assembled concrete wing plate section to be the length of a beam, and combining and recording the length as a model G;
thirdly, establishing a truss unit reinforcement cage, and marking as a model H;
and fourthly, assembling the model F, the model G and the model H to generate a final geometric model.
(3) Defining material section parameters for the steel beam, the steel bar, the concrete wing plate and the stud connecting piece respectively;
(4) setting boundary conditions and dividing grids: the stud connecting piece is in hard contact with the surface of the hole of the concrete wing plate; the upper surface of the steel beam is in fine friction hard contact with the lower surface of the concrete wing plate, and the friction coefficient is 0.35; the reinforcing steel bars are embedded in the concrete wing plates. Coupling the 80 x 150mm area of the midspan of the top surface of the concrete wing plate with a midspan reference point, and applying 80mm displacement loading to the reference point.
(5) And calculating by adopting a hidden test algorithm, and analyzing the stress state of each part aiming at the stress and deformation cloud pictures. In the example of 100kN, the stress cloud chart of the steel beam, the steel bar and the stud connecting piece shows that the maximum stress of the stud appears at the root and reaches 443 MPa; the maximum stress of the steel bars is 92.3MPa, and the maximum stress of the steel beam span is 150MPa, so that the steel bars and the steel beams are safe. The load-deflection curve of the steel-concrete composite beam under bending load is shown in fig. 6, and the maximum bearing capacity of the composite beam is 215MPa by reading the highest point of the curve, and the corresponding mid-span deflection is 30 mm. The slippage-deflection curve of the steel-concrete composite beam under bending load is shown in figure 7, and the slippage at the beam end develops in a nonlinear way.
It should be noted that the above embodiments are only examples for clarity of illustration, and are not limiting, and all embodiments need not be exhaustive. All the components not specified in the present embodiment can be realized by the prior art. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (4)
1. A finite element modeling method for designing a stud connector of a steel-concrete composite beam is characterized in that the method writes scripts to control and establish a solid three-dimensional model of the stud connector of different diameters, heights, intervals and material characteristics through a Python language interface of finite element software ABAQUS, and performs statics calculation analysis on the model;
the concrete method for controlling and establishing the solid three-dimensional model of the stud connector steel-concrete composite beam with different diameters, heights, intervals and material characteristics by compiling scripts through a Python language interface of finite element software ABAQUS comprises the following steps:
(1) establishing an early-stage geometric model:
the Python language is adopted to write scripts, values are assigned to parameter variables of the number n of the studs, the distance d, the height h, the head radius r1 and the rod radius r2, and the following models are built according to the values:
firstly, establishing a steel beam section model with the length of d, and marking as a model A;
secondly, establishing a stud model with the height h, the head radius r1 and the rod radius r2, and marking as a model B;
thirdly, establishing a concrete wing plate section model with the length d, and marking as a model C;
combining the model A and the model B to generate a steel beam section with the stud and completing segmentation, and marking as a model D;
tangent model B and model C to generate concrete wing plate section with holes and complete the segmentation, and marking as model E;
(2) assembling a final geometric model:
adopting Python language to compile a script, and splicing and combining the models in the step (1):
firstly, arraying n models D, modifying the lengths of steel beam sections at two ends to be the length of the assembled whole length, and merging and recording as a model F;
secondly, arraying n models E, modifying the lengths of the concrete wing plate sections at two ends to the full length of the assembled concrete wing plate section to be the length of a beam, and combining and recording the length as a model G;
thirdly, establishing a truss unit reinforcement cage, and marking as a model H;
fourthly, the model F, the model G and the model H are spliced to generate a final geometric model;
(3) defining material section parameters for the steel beam, the steel bar, the concrete wing plate and the stud connecting piece respectively;
(4) setting boundary conditions and dividing grids;
(5) and calculating by adopting a hidden test algorithm, and analyzing the stress state of each part aiming at the stress and deformation cloud pictures.
2. The finite element modeling method for steel-concrete composite beam stud connector design according to claim 1, wherein the stud connector steel-concrete composite beam entity is composed of steel beam, steel bar, concrete wing plate, stud connector, and the connection relationship between each part is: the stud connecting piece and the steel beam are bound and restrained and are in hard contact with the surface of the hole of the concrete wing plate; the upper surface of the steel beam is in friction hard contact with the lower surface of the concrete wing plate; the reinforcing steel bars are embedded in the concrete wing plates.
3. The finite element modeling method for the design of the stud connector of the steel-concrete composite beam as claimed in claim 2, wherein in the solid three-dimensional model of the stud connector of the steel-concrete composite beam, the steel beam builds a solid unit model according to actual size, and the material model is bilinear; the steel bar is simulated by adopting a truss unit according to the actual cross-sectional area, and the material model is bilinear; building a solid unit model of the concrete wing plate according to the actual size, wherein the material model is a concrete plastic damage model; the stud connecting piece establishes an entity unit model according to the selected size, the material model is plastic, and a plastic curve is obtained according to actual measurement of a stud tensile test.
4. A finite element modeling method for steel-concrete composite beam pin connection design according to claim 1 or 2 or 3, characterized in that when the model is subjected to statics calculation analysis, the following data are obtained by calculation: under the action of deflection, the maximum deflection of the steel-concrete combined beam of the stud connecting piece with different diameters, heights, intervals and material characteristics, the maximum stress of the steel beam, the steel bar and the stud connecting piece, the plastic damage distribution of the concrete wing plate, the longitudinal slippage between the steel beam and the concrete wing plate and the deformation state of the stud connecting piece are adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810115636.9A CN108416108B (en) | 2018-02-05 | 2018-02-05 | Finite element modeling method for designing steel-concrete combined beam stud connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810115636.9A CN108416108B (en) | 2018-02-05 | 2018-02-05 | Finite element modeling method for designing steel-concrete combined beam stud connecting piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108416108A CN108416108A (en) | 2018-08-17 |
| CN108416108B true CN108416108B (en) | 2021-12-03 |
Family
ID=63126894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810115636.9A Active CN108416108B (en) | 2018-02-05 | 2018-02-05 | Finite element modeling method for designing steel-concrete combined beam stud connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108416108B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109918716B (en) * | 2019-01-25 | 2020-08-11 | 杭州品茗安控信息技术股份有限公司 | Three-dimensional rapid generation method for steel bars |
| CN110532580A (en) * | 2019-01-25 | 2019-12-03 | 中国建筑股份有限公司 | A kind of half refined numerical simulation method of prestressing force prefabricated concrete structure node |
| CN110020498B (en) * | 2019-04-18 | 2020-09-11 | 北京交通大学 | Method for constructing one-dimensional finite element model of curved steel-concrete combined box girder |
| CN110765512B (en) * | 2019-09-20 | 2023-02-21 | 久瓴(江苏)数字智能科技有限公司 | Method and device for generating connection node, computer equipment and storage medium |
| CN112307662B (en) * | 2020-10-30 | 2022-09-06 | 重庆大学 | Numerical method for bolt corrosion simulation |
| CN112949128A (en) * | 2021-03-03 | 2021-06-11 | 中铁十八局集团有限公司 | Finite element analysis method for outer tank model of LNG storage tank |
| CN117290914B (en) * | 2023-10-27 | 2024-03-29 | 湘潭大学 | Stud connecting steel-UHPC interface shearing bearing capacity calculation method considering interface friction effect |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778377A (en) * | 2015-05-04 | 2015-07-15 | 中国矿业大学 | Composite beam bending vibration inherent frequency analytical method |
| CN104866676A (en) * | 2015-05-27 | 2015-08-26 | 东南大学 | Bondbeam cable-stayed bridge sensor layout method based on two-phase multi-scale model correction |
| CN106767667A (en) * | 2017-01-24 | 2017-05-31 | 广西交通科学研究院有限公司 | Using the appraisal procedure of the steel-concrete combination beam fatigue additional deformation of Welded-Stud Conectors |
| CN107016194A (en) * | 2017-04-07 | 2017-08-04 | 东南大学 | Bridge cable system deterioration method for analyzing performance based on multi-scale finite Meta Model |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10203268B2 (en) * | 2008-12-04 | 2019-02-12 | Laura P. Solliday | Methods for measuring and modeling the process of prestressing concrete during tensioning/detensioning based on electronic distance measurements |
| US20170185699A1 (en) * | 2015-04-22 | 2017-06-29 | Livermore Software Technology Corporation | Methods and Systems For Simulating Structural Behaviors of Reinforced Concrete in Finite Element Analysis |
-
2018
- 2018-02-05 CN CN201810115636.9A patent/CN108416108B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778377A (en) * | 2015-05-04 | 2015-07-15 | 中国矿业大学 | Composite beam bending vibration inherent frequency analytical method |
| CN104866676A (en) * | 2015-05-27 | 2015-08-26 | 东南大学 | Bondbeam cable-stayed bridge sensor layout method based on two-phase multi-scale model correction |
| CN106767667A (en) * | 2017-01-24 | 2017-05-31 | 广西交通科学研究院有限公司 | Using the appraisal procedure of the steel-concrete combination beam fatigue additional deformation of Welded-Stud Conectors |
| CN107016194A (en) * | 2017-04-07 | 2017-08-04 | 东南大学 | Bridge cable system deterioration method for analyzing performance based on multi-scale finite Meta Model |
Non-Patent Citations (1)
| Title |
|---|
| 组合梁中栓钉受力的有限元模拟分析;王隽;《建筑钢结构进展》;20110630;第20-28页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108416108A (en) | 2018-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108416108B (en) | Finite element modeling method for designing steel-concrete combined beam stud connecting piece | |
| Okumus et al. | Nonlinear finite element modeling of cracking at ends of pretensioned bridge girders | |
| Thevendran et al. | Nonlinear analysis of steel–concrete composite beams curved in plan | |
| El-Ariss | Behavior of beams with dowel action | |
| Nayak et al. | Structural and cracking behaviour of RC T-beams strengthened with BFRP sheets by experimental and analytical investigation | |
| Yan et al. | Research on numerical model for flexural behaviors analysis of precast concrete segmental box girders | |
| Ghaedi et al. | Finite element analysis of a strengthened beam deliberating elastically isotropic and orthotropic CFRP material | |
| Cho et al. | Strengthening effect of prestressed near-surface mounted CFRP bar system according to material properties of aged reinforced concrete beams | |
| Yu et al. | Seismic performance of precast concrete columns with Improved U-type reinforcement ferrule connections | |
| Oukaili et al. | Behavioral nonlinear modeling of prestressed concrete flexural members with internally unbonded steel strands | |
| Elkafrawy et al. | Nonlinear finite element analysis (NLFEA) of pre-stressed RC beams reinforced with iron-based shape memory alloy (Fe-SMA) | |
| Yousaf et al. | Force-and displacement-controlled non-linear FE analyses of RC beam with partial steel bonded length | |
| Benin et al. | Fracture simulation of reinforced concrete structures with account of bond degradation and concrete cracking under steel corrosion | |
| Imperatore et al. | Numerical modeling of existing RC beams strengthened in shear with FRP U-sheets | |
| Oliva et al. | Finite element analysis of deep wide-flanged pre-stressed girders to understand and control end cracking | |
| Deng et al. | Nonlinear flexural behavior of prestressed concrete girder bridges | |
| Liu et al. | Experimental and numerical studies on the mechanical performance of a wall-beam-strut joint with mechanical couplers for prefabricated underground construction | |
| Salinas et al. | Nonlinear truss modeling method for masonry-infilled reinforced concrete frames | |
| Koteš | Influence of corrosion on crack width and pattern in an RC beam | |
| Liang et al. | Comparison study of time-varying seismic fragility of precast segmental and cast-in-place bridge columns in high-speed railway bridges | |
| Siekierski | Analysis of concrete shrinkage along truss bridge with steel-concrete composite deck | |
| Al-Azzawi et al. | Finite element analysis of deep beams on nonlinear elastic foundations | |
| Li et al. | Research on the Load-slip Properties of Corrugated Rib Connectors’ Push-out Test | |
| Deng et al. | Experimental study and numerical simulation of precast segmental bridge column with a central RC tenon | |
| Garnica et al. | Nonlinear finite element analysis of tests of reinforced concrete slabs |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |