• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Procedure to determine the rigidity in beams and slabs in existing structures. Procedure for determining the rigidity in beams and slabs (1) in existing structures, comprising the phases of placement of less than beam or forged (1) and with a space of separation, an additional beam (2), supported isostatically, of known material, section and stiffness; placement of means for applying loads in separation space; dimensioning the position of the means for applying loads with respect to the ends of the additional beam (2); placement of means of measuring displacements; load application; measure of the displacements obtained, and; determination of the rigidity of the beam or forged (1) to be analyzed. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2646239A1
    申请号:ES201630772
    申请日:2016-06-08
    公开日:2017-12-12
    发明作者:Jose Miguel AVILA JALVO；Joaquin Francisco ANTUÑA BERNARDO；Miguel AVILA NIETO
    申请人:Universidad Politecnica de Madrid；
    IPC主号:
    专利说明:

    image 1
    image2
    image3
    image4


    In addition, the way in which the process is carried out does not condition the probable hyperstaticity created by the usual way of building the reinforcement beam supports. On the other hand, this procedure allows to know with great approximation the rigidity of the existing structure.
    5 The reinforcement system resolves both the uncertainty of the system's loading and the precision of the forces applied in this loading, reducing the bending stresses on the element to be reinforced to the precise and necessary amount, while increases the rigidity of the assembly under the same conditions.
    10 It is therefore a procedure that allows to precisely control the stresses that support both the reinforcement and the existing structure and increase the stiffness of the entire system to the desired amount by simply placing reinforcement pieces whose inertia meets the needs of this gain.
    On the other hand, the execution of the reinforcement is not conditional on the use of special support systems, nor on the use of sophisticated measurement methods, nor on special, telescopic or other complex systems, so it can be applied to any type of element Working flexing.
    20 Actually, the procedure is an elementary application of knowledge of mechanics and for whose application it is only necessary to use either jacks or even wooden or metal wedges and simple and easy to handle measuring elements. 25 Brief description of the drawings
    In order to help a better understanding of the features of the invention, according to a preferred example of practical realization thereof, an integral part of said description is provided, a series of drawings where, for illustrative purposes and not
    30 limiting, the following has been represented:
    Figure 1 shows a representation of the second phase of the procedure for determining stiffness in beams and forged in existing structures, for a preferred embodiment of the invention.
    35
    6
    image5


    The fourth phase consists in the placement of means for measuring the displacements, which in this preferred embodiment of the invention are formed by references 4 located at the ends 2.1, 2.2, of the additional beam 2 with a level between same and guides 5 at the points where the jacks 3 that form the means of application of the load are located.
    From this moment on, the fifth phase, the load application, can be carried out.
    Applying the load, as shown in Figure 2, increases the distance between the slab 1 to be analyzed and the additional beam 2 and, thanks to the level placed between the references 4 located at the ends 2.1, 2.2, of said additional beam 2, it is possible to distinguish which part of the displacement D4 corresponds to the additional life 2 and which part of the displacement D5, to the slab 1 to be analyzed.
    The sixth phase that takes place next is precisely the measurement of the displacements D4, D5, thus obtained, both in the slab 1 to be analyzed and in the additional beam 2. This measure refers to the absolute displacements of the application points of the loads both in the slab 1 to be analyzed and in the additional beam 2.
    Finally, the seventh phase consists in determining the rigidity of the slab 1 to be analyzed.
    Thus, by means of this procedure in which an additional beam 2 is placed under the slab 1 and at a certain distance from it and a load is applied by means of cats 3 at completely bounded points, when these cats are operated, both the additional beam 2 and The slab 1 to be analyzed undergoes flexion.
    In the additional beam 2, known the descent, so is the force applied by each cat
    3. Likewise, the relationship between the rise of the slab 1 and the descent of the additional beam 2 determines the stiffness of the slab 1 of the building, since it is inversely proportional to the stiffness of the additional reinforcement beam 2 as a function of the ratio Between your movements And, as the rigidity of the additional beam 2 is known, we can know precisely the rigidity of the floor 1.
    8
    image6


    Thanks to the way in which this procedure is carried out, the accuracy of the
    rigidity of the structural element to be reinforced, including the state of degradation in which
    find, either for apparent or hidden causes. This makes this system not only have
    application to make reinforcements without mechanical uncertainties but to determine the
    5 status of an existing structure, so that its capacity can be validated and
    avoid unnecessary repair interventions or to project reinforcement needs
    Knowing clearly their shortcomings.
    10
    fifteen
    twenty
    25
    30
    10
    权利要求:
    Claims (1)
    [1]
    image 1
    image2
    类似技术:
    公开号 | 公开日 | 专利标题
    Ilyushin2019|The formula for calculating the deflection of a compound externally statically indeterminate frame
    BR112016020954A8|2021-04-13|system for fixing blades to form an elevated floor or pavement
    ES2646239A1|2017-12-12|Procedure for determination of rigidity in beams and slabs in existing structures |
    Kujawa et al.2014|Numerical and experimental investigation of rotational stiffness of zed-purlins connection with sandwich panels
    US9975623B2|2018-05-22|Elastomeric transition
    EP3173547A1|2017-05-31|Formwork for the execution of horizontal castings for providing floor slabs
    EA201800437A1|2019-01-31|EMPTYING ELEMENT OF FIXABLE FORMWORK FOR REINFORCED CONCRETE MULTI-EMPTY PLATE CONSTRUCTIONS
    Ramasamy et al.2017|Multistage hydraulic cylinder buckling analysis by classical and numerical methods with different mounting conditions
    KR200479739Y1|2016-03-03|Apparatus for supporting of ship structures
    CN204574997U|2015-08-19|A kind of concrete thickness measurement mechanism
    Dahmani et al.2015|Lateral torsional buckling of an eccentrically loaded channel section beam
    Wieczorek2014|Numerical analysis of narrow single-span, gravitationally loaded concrete slabs reinforced by steel with a mean ductility
    Ravikumara et al.2015|A study on plastic hinge formation in rc frame by nonlinear static analysis
    Gellin et al.2015|Computational modeling of bending-active modular inflated structures
    Mel’nyk2015|Analysis of the stiffnesses of reinforced-concrete plane monolithic floors with tubular inserts
    JP5895013B2|2016-03-30|Wall structure
    TH160729A|2017-03-09|Systems and methods for supporting concrete slabs with two-way loads. Be consistent on its own
    Knyazeva et al.2017|INFLUENCE OF AGGRESSIVE EFFECTS OF THE ENVIRONMENT ON RESISTANCE OF REINFORCED CONCRETE ELEMENTS
    Chen et al.2014|Distortional Buckling Control of Cold-Formed Lipped Channel Columns with Web Stiffener
    Gantes2011|Numerical evaluation of ultimate bearing capacity of steel structures
    Osman-Letelier et al.2018|Conceptual design of concrete shell bridges with ruled surface geometry
    Sinkovič et al.2016|Seismic assessment of RC frame buildings
    RU149047U1|2014-12-20|COMBINED MONOLITHIC REINFORCED CONCRETE COVERING
    Ghavami2015|Bending Stresses in Beams
    Pástor et al.2015|Design of Modifications for Constructional Elements of Manipulator Arm Aimed at Measuring of Operational Torque
    同族专利:
    公开号 | 公开日
    ES2646239B2|2018-08-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20120215465A1|2011-02-22|2012-08-23|Shuraim Ahmed B|System and method for determining longitudinal moments in one-way joist floors|
    WO2016013508A1|2014-07-25|2016-01-28|国立大学法人鳥取大学|Pipe evaluation method, measurement device, and pipe evaluation system|
    WO2016047093A1|2014-09-25|2016-03-31|日本電気株式会社|Status determination device and status determination method|
    法律状态:
    2018-08-21| FG2A| Definitive protection|Ref document number: 2646239 Country of ref document: ES Kind code of ref document: B2 Effective date: 20180821 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630772A|ES2646239B2|2016-06-08|2016-06-08|Procedure for determining stiffness in beams and slabs in existing structures|ES201630772A| ES2646239B2|2016-06-08|2016-06-08|Procedure for determining stiffness in beams and slabs in existing structures|
    [返回顶部]