CN104583502A - Beam assembly and construction erected therewith - Google Patents

Beam assembly and construction erected therewith Download PDF

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Publication number
CN104583502A
CN104583502A CN201380044616.2A CN201380044616A CN104583502A CN 104583502 A CN104583502 A CN 104583502A CN 201380044616 A CN201380044616 A CN 201380044616A CN 104583502 A CN104583502 A CN 104583502A
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CN
China
Prior art keywords
board
central
assembly
segment
longitudinal
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
CN201380044616.2A
Other languages
Chinese (zh)
Inventor
W·特鲁布尼科夫
E·巴萨拉
M·坎德尔斯
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.)
Areva GmbH
Original Assignee
Areva NP GmbH
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
Priority to DE102012215151.6 priority Critical
Priority to DE102012215151.6A priority patent/DE102012215151A1/en
Application filed by Areva NP GmbH filed Critical Areva NP GmbH
Priority to PCT/EP2013/067676 priority patent/WO2014033103A1/en
Publication of CN104583502A publication Critical patent/CN104583502A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/36Bearings or like supports allowing movement
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • E04B2001/2439Adjustable connections, e.g. using elongated slots or threaded adjustment elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • E04B2001/2442Connections with built-in weakness points
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403Connection details of the elongated load-supporting parts
    • E04B2001/2448Connections between open section profiles
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C2003/026Braces
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452H- or I-shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/32Columns; Pillars; Struts of metal

Abstract

The invention relates to a beam assembly, comprising a substantially straight beam (2), which is arranged between two bearings (4, 6) and extends in a longitudinal direction (8) and comprises at least three segments (10, 2, 14), which are arranged one behind the other in the longitudinal direction (8) and which are connected to each other by means of two head plate joints (22), namely a middle segment (10) and two outer segments (12, 14), wherein the bearings (4, 6) are prevented from moving in the longitudinal direction (8), should permit controlled relief of thermal constraining forces while the load-transferring function is simultaneously maintained and while external dynamic forces are evenly distributed within the construction. According to the invention this is achieved in that the middle segment (10) has a middle segment head plate (18) at each of the two ends of the middle segment and each of the two outer segments (12, 14) has an outer segment head plate (20) at the end of the outer segment directed toward the middle segment (10), each outer segment head plate (20) is oriented complementarily to the middle segment head plate (18) facing the outer segment head plate in such a way that the outer segment head plate and the middle segment head plate together form a head plate joint (22), the two head plates (18, 20) of each head plate joint (22) are connected to each other by means of connecting bolts (28), which are inserted through openings (26) in the head plates (18, 20), the openings (26) in at least one of the head plates (18) of each head plate joint (22) are designed as elongated holes (34), and both head plate joints (22) are angled in opposite directions with respect to a plane normal to the longitudinal direction (8) in such a way and the elongated holes (34) are arranged and oriented in such a way that lateral displacement of the middle segment (10) in relation to the two outer segments (12, 14) is possible in the event of thermal expansion or contraction of the segments (10, 12, 14).

Description

Beam assembly and the structure set up whereby
The present invention relates to a kind of beam assembly, this beam assembly has the substantially straight beam be arranged between two bearings, this beam extend longitudinally and by least three in the vertical before and after arrange and formed by two top board joint interconnective portion sections, an i.e. central section and two outer portion parts, wherein these bearings are prevented from longitudinally being shifted.The invention still further relates to the structure utilizing this beam assembly to set up, especially steel work.
Girder steel usually cannot manufacture according to the length required for set application purpose and be transported to application site with integral manner.But prefabricated portion section shorter for multiple length is interconnected at building-site.This realizes by so-called top board joint or end plate joint usually, and here, the top board being integrally formed or being installed in side on real beam type material utilizes bolt to be interconnected.The longitudinal direction that such top board is generally perpendicular to beam carrys out orientation.
Normally for being affected by temperature, the high contention effect that causes designs for steel work in nuclear technology equipment and other application and the girder especially bearing top load.
On the other hand, their must so design and placing, that is, with can trying one's best uniformity all outer loads of removal as Payload and such as by earthquake the vibration that causes.This normally runs in the opposite direction with the expectation of compensate for heat expansion with the supporting that nothing is oppressed as far as possible.In general, reduced stiffness also involves supporting capacity and weakens.Therefore, the hot oppressive force past is mainly through adopting the axially-displaceable position property (without compressing supporting) realizing joint in expansion bearing or floating support saddle situation to take in.Being connected to when bearing outer dynamic load of this type lacks sufficiently high axial stiffness to be dispersed in system by load.Thus, economically see can not be satisfactory for this structure.
The present invention is based on following task, that is, propose a kind of alternative beam assembly, this beam assembly obtains offloading functions at the same time and in structure, allows the controlled elimination of hot oppressive force when dispersed external force.
According to the present invention, this task has been come by the feature of independent claims 1.
Accordingly, provide the beam assembly of type described in a kind of foreword, wherein:
Central section has a central section top board respectively at its two ends, and one end that each outer portion part in described two outer portion parts points to central section at it has outer portion part top board,
The central section top board complementally orientation that each outer portion part top board is like this and opposed with it, namely they form a top board joint jointly,
Two top boards of each top board joint are interconnected by connecting bolt, and described connecting bolt is guided through the breach in described top board,
The breach being arranged in one of them described top board of each top board joint is formed with the form of elongated hole,
Two top board joints so oppositely tilt relative to the normal plane of this longitudinal direction mutually, and described elongated hole is so arranged and orientation, namely allow this central section relative to described two outer portion part lateral displacements when the section thermal expansion of described portion or when shrinking.
In other words, the structure of the adaptation steel work of simple economy is utilized to solve had in mind problem.Bolt in only needing metal sheet, rolled-section and being connected at elongated hole, without the need to special component.By the simple combination of above-mentioned component, obtain and affect in temperature the supporting that lower compression weakens, obtain the supporting capacity for outer load simultaneously.The axial expansion of described portion section under heat requirement is compensated by the lateral displacement perpendicular to longitudinal direction of this structure.Now, the static friction caused by bolted part pretension taken between top board is made every effort to overcome in high compressing.Lateral displacement is considered to realize from structure because of outer static load and/or outer dynamic load for the central section of beam.After temperature impact terminates, these sections are strained again, and automatically produce side direction returning place force thus, it makes central section be moved back into initial position again.
Constructive accounting is, these sections of beam arrange being aligned/alignment under Normal Environmental Temperature, and central section side direction when significantly heating up shifts out.But also can based on such system, its with corresponding manner in response to cooling and and then portion's section shrink, and displaced condition is exactly basic status to a certain extent.When connecting bolt in other words connecting pin under basic status, be such as positioned at the central authorities of elongated hole and central section correspondingly such as shifts out arrangement time, have freedom of motion in the two directions according to variations in temperature mode.
The tilt axis of each central section top board and the tilt axis of correspondingly opposed with it in top board joint outer portion part top board advantageously carry out orientation perpendicular to this longitudinal direction.And the tilt axis of these two central section top boards is preferably parallel to each other orientation, and described two central section top boards preferably have the identical angle of inclination of size relative to the normal plane of this longitudinal direction.In the scope of this angle of inclination preferably between 30 ° to 60 °, preferably 45 °.Thus one, support that this central section carries out described lateral displacement automatically because of portion's section thermal expansion best, obtain supporting capacity all the time in as far as possible best mode simultaneously.But be possible with the less deviation of described prescribed direction and predetermined angular, such as, because this tilt axis reverses or distortion slightly, or because the slightly different inclination of this top board joint.
The elongated hole being used for the connecting bolt connecting bolt in other words of each top board joint as guide rail to a certain extent when central section lateral displacement to be so arranged in corresponding top board and orientation like this certainly, that is, there is described mobility.Suitably coordinate mutually with above-mentioned geometry, described elongated hole is perpendicular to the tilt axis orientation of each central section top board.
In an advantageous variant, the described breach being positioned at the central section top board of a top board joint is formed with the form of elongated hole, and the described breach in this outer portion part top board is formed with the form of circular hole.But be also feasible conversely.This connecting bolt in other words connecting pin now suitably directed/intert through two breach, namely through top board joint two top boards and overlapped the edge of described breach by side direction from outside and be posted by the bolt head of this top board and/or be fixed by nut.But in a possible modification, this connecting bolt also can at least one top board in two of a top board joint top board be integrally formed or engage (as welding), is passed in the elongated hole in another top board and is fixed by nut from outside.Advantageously, these elongated holes are all closed on whole side face, and four sides is surrounded by top board in other words, and such as border is not opened wide toward the outside.In this way, define the lateral displacement distance of central section, and this central section side direction cannot to come off this beam.Now, the maximum lateral displacement distance of this central section is structurally in attainable scope.Ensure that the stability of beam and supporting capacity can not drop to thus and be less than threshold.
As mentioned above, two top boards of a top board joint suitably pass through removable frictional connection part by fastening or clamping mutually when beam is installed.To this, preferred employing especially in bolt or bolt and/or the connecting bolt of band cap screw or similar item form form suitable component and be connected with the bolt of substantially cylindrical bar, they according to common mode by the nut of correspondence and perhaps with pad in combination or be fixed by holding pin or similar item and bear pulling force simultaneously.These two top boards advantageously as tighted a bolt or nut clamps so mutually by corresponding, namely still keep the side direction high movable (part pretension) of central section under temperature action.
In suitable embodiment, beam is girder steel, and its some sections are such as formed with rolled-section form, rolled-section have be integrally formed at side place or install additional and the top board especially welded.Or described beam or at least its some building block also can by other materials, especially by composite material (composite wood) or the similar item manufacture in modern times.Some beam portions section itself can be segmented in common mode, is made up of in other words the portions section of separating at first, such as, utilize perpendicular to machine-direction oriented top board joint.In principle also it is possible that Production Example is as the beam be made up of five portion's sections, now, longitudinally see second and the 4th section be designed to lateral displacement in the manner described.Because in the case by first to the 3rd assembly that section is formed or by the 3rd to the 5th assembly that section is formed or can be regarded as unique portion's section, therefore such collocation form contained in the statement of claim.
Described top board preferably has smooth contact surface, and their allow to be connected separately with it matches the anti-twist supporting of the anti-inclination of body and connection, and they form slide plane when the lateral displacement of the central section of beam.In an alternative embodiment, described contact surface also can have step, and the direction along moving direction aimed at by this step, thus achieves the guide rail for lateral displacement.Described top board especially can have the flange that side direction exceeds beam type material when firm beam or in closed box material situation, installs to simplify connector and is convenient to close to it when installation and maintenance.Or, under closure profile and/or firm section steel situation, also can offer corresponding opening in the material.
Described beam assembly is suitably the ingredient of steel work or building, especially the ingredient of steel platform or framework, such as, in nuclear technology equipment or other industrial equipment.
Imagination according to the present invention to be useful in the novel building of steel work and to be also applicable to strengthen existing steel work.The geometry of this structure is now in fact uninfluenced, and can allow at factory's this beam splice substantially prefabricated.
The advantage that the present invention obtains especially is to form beam by segmentation, wherein some sections of this beam are by connecting with elongated hole bolt and being interconnected by the top board joint of part pretension of firm joint geometry, the stress caused by hot contention effect by the controlled elimination of lateral displacement can be realized in the structure of bearing heat requirement, Static and dynamic load, keep the bending supporting capacity for external applied load simultaneously, Specifically utilize the simple structure principle meeting steel work, and without the need to special component.
Obtain whereby:
Bending resistance bearer connection on operating position or installation site,
For eliminating the additional structure possibility of the stress in steel work,
The design more economical compared with scheme so far because the material in overall structure saves,
Expansion uniformity under thermal stress and the supporting capacity simultaneously obtained in exclusive architecture for external applied load.
Below with reference to accompanying drawing in detail embodiments of the invention are described in detail.At this, show with the schematic diagram simplified respectively:
Fig. 1 shows at ambient temperature according to the longitudinal section of the beam of the present invention of the first collocation form,
Fig. 2 show according to the beam of Fig. 1 along the cross section with the cutting line shown in A-A,
Fig. 3 show according to the beam of Fig. 1 along the cross section with the cutting line shown in B-B,
Fig. 4 shows at elevated temperature according to the longitudinal section of the beam according to Fig. 1 of the second collocation form,
Fig. 5 show according to the beam of Fig. 4 along the cross section with the cutting line shown in C-C.
In all of the figs, identical component are with identical Reference numeral.
As the longitudinal section of Fig. 1, the beam 2 illustrated under environment temperature (Δ Τ=0) is formed with the form of the straight girder steel of strip, and this beam is clamped between upper bracket 4 and undersetting 6 with being vertically oriented in this example.The total length L of beam 2 on longitudinal 8 indicates.These two bearings 4,6 are prevented from longitudinally 8 displacements, such as, by surrounding structure or anchoring.Especially, it can be fixed bearing.In other structure, described beam 2 also can horizontal or tiltedly establish.
That beam 2 separates at first by three, in factory by prefabricated and setting up on-the-spot assembled and interconnective portion section 10,12 and 14 to form, i.e. a central section 10, upper outer portion part 12 and a lower outer portion part 14.Three portion's sections 10,12,14 all have the beam 16 be such as made up of symmetrical double-T section bar.The cross sectional shape of beam 2 is substantially invariable within the scope of whole development length.Certainly, other cross sectional shape can also be adopted.Or, the cross sectional shape that these three portion's sections 10,12,14 also can have different cross sectional shapes and/or longitudinally change.
In order to realize engaging/connect, central section 10 is equipped with a flat central section top board 18 respectively at two ends, it is soldered in beam 16.Two outer portion parts 12,14 have an outer portion part top board 20 in one end of its sensing central section 10 respectively according to corresponding layout, thus form two top board joints 22 under final installment state.In each joint of two top board joints 22, the mutual plane in whole lateral extension of contact surface outwardly of the connection pairing body of participating reclines.In order to allow to hold this beam 2 without compressing twelve Earthly Branches as far as possible between two bearings 4,6 when keeping high bending supporting capacity, described top board joint 22 is configured to have special gradient.Specifically, these two central section top boards 18 are arranged around respective imaginary tilt axis 24 in mode reverse each other with being inclined relative to horizontal/verting.Two tilt axis 24 extend parallel to each other and perpendicular to longitudinal 8, are perpendicular to drawing in FIG and extend past the axis of symmetry of beam type material at this.Two central section top board 18 tilt angle alpha that all with respect to the horizontal plane (and then also relative to vertical plane) is at 45 °, or generally, the tilt angle alpha that the normal plane relative to longitudinal 8 is at 45 °.Because reversed dip each other, therefore when corresponding prolongation to the left, these two central section top boards 18 are forming horizontal V-arrangement according in the sectional view of Fig. 1.These outer portion part top boards 20 tilt with the complimentary fashion coordinated with it.The beam 16 of these three portion's sections 10,12 and 14 is tilted to cut off (when being similar to the angle connecting portion cut off in foundation mitre) by corresponding in joint, side for this reason, and described top board 18,20 is soldered on the terminal side edge of beam 16.Accordingly, central section 10 has the profile of equilateral symmetric trapezium in FIG.
The permanent connection of top board 18,20 mutually opposing in each top board joint 22 is bolted to be carried out.For this reason, in the breach 26 or the hole that are being equipped with suitably location according to the top board 18,20 in the view of Fig. 2 and Fig. 3, the bolt 28 preferably in two petiolareas with two reverse each other threaded portions passes through screwed on side through this breach or Kong Bingcong both sides and overlaps this breach and the nut 30 being posted by top board is fixed.Or also can adopt band cap screw, it is tightened respectively by unique nut.
Specifically, in the present embodiment, the breach 26 in each outer portion part top board 20 is formed (Fig. 2) with circular hole 32 form with the diameter more bigger than the diameter of the bolt 28 that will pass separately or screw rod.Breach 26 in each central section top board 18 is formed with elongated hole 34 form, and its width is also configured to the diameter slightly larger than the bolt 28 that will pass separately or screw rod, but its length is significantly greater than width (Fig. 3).
The longitudinal direction of the elongated hole 34 in each central section top board 18 perpendicular to its tilt axis 24, is parallel to the drawing of Fig. 1 under final installment state at this.Elongated hole 34 is so located relative to circular hole 32, namely, as shown in Figure 1, these three portion's sections 10,12,14 longitudinally 8 see in the collocation form of aligning/alignment, bolt 28 or screw rod in place on the one end on the close trapezoidal long base of this elongated hole 34 according to trend, namely in fig. 2 at right-hand member.
Described structure result in, when temperature raises (Δ Τ >0), because these three portion's sections 10,12,14 thereupon make great efforts to expand and two outer portion parts 12,14 fixing to clamp between two bearings 4,6 on longitudinal 8, this central section 10 subjected to the making a concerted effort, namely in this power towards the right side of the trapezoidal long base of sensing transverse to this longitudinal direction 8.
When corresponding adjusting bolt connects pretightning force, which results in, when exceeding the minimum temperature difference Δ Τ of the original state relative to Fig. 1 institute foundation required for the static friction between the top board 18,20 in order to overcome two top board joints 22, this central section 10 is shifted in said direction, side direction se displacement in other words.The contact surface of the contact of this top board 18,20 now causes the power deflection transverse to longitudinal 8 on the one hand, and on the other hand, they form slide plane mutually.Elongated hole 34 in central section top board 18 required translation freedoms is provided and also form guide rail for relative to its towards free space as shown in Figure 2 namely at this towards the bolt 28 moved left or screw rod.
Temperature difference Τ is larger, and the lateral displacement of central section is larger.The final longitudinal extension size of the elongated hole 34 that translocation distance is closed by two ends defines.
Fig. 4 shows maximum shift state (Δ Τ > > 0).Bolt 28 or screw rod are positioned at the end near this trapezoidal short base of this elongated hole 34 now, and here, the residual material strips between elongated hole 34 and the outward flange of central section top board 18 is as end stop (Fig. 5).The increase overall length measured on the axis of symmetry of beam type material respectively of these three portion's sections 10,12,14 increases to present (L1+ Δ L1)+(L2+ Δ L2)+(L3+ Δ L3) from initial L1+L2+L3.The difference of these two length dimensions represents with fq in the diagram.But by central section 10 with distance fq lateral displacement, the overall length L of beam 2 remains unchanged.At this in particular cases, L1=L3, and then at least approximately there is Δ L1=Δ L3, but generally not necessarily need symmetry.
Only have when temperature continues to raise, just occur the compressing of noticeable beam 2, this may cause the corresponding compressive strain of beam 2 or flexural deformation or cause the surrender of bearing 4,6 or cause cutting off of bolt 28 or screw rod.
The displacement of central section 10 is reversible.Collocation form shown in Fig. 4 also can reduce and the original state of the corresponding contraction of portion's section 10,12,14 as follow-up temperature by people, and this causes collocation form as shown in Figure 1 immediately.
Reference numerals list
2 beams;
4 upper brackets;
6 undersettings;
The longitudinal direction of 8 beams 2;
10 central section;
Outer portion part on 12;
14 times outer portion parts;
16 beam;
18 central section top boards;
20 outer portion part top boards;
22 top board joints;
24 tilt axis;
26 breach;
28 bolts;
30 nuts;
32 circular holes;
34 elongated holes;
36 (elongated hole 34) is longitudinal;
α angle of inclination

Claims (13)

1. a beam assembly, this beam assembly has and is arranged on two bearings (4,6) the substantially straight beam (2) between, this beam along the longitudinal (8) extends and arranges by least three and pass through two top board joint (22) interconnective portion sections (10 before and after longitudinal direction (8) is upper, 12,14) form, an i.e. central section (10) and two outer portion parts (12,14), wherein said bearing (4,6) longitudinally (8) are prevented from mobile, wherein
Described central section (10) has a central section top board (18) respectively at its two ends, described two outer portion parts (12,14) each outer portion part in has outer portion part top board (20) in one end that it points to described central section (10)
Central section top board (18) the complementally orientation that each described outer portion part top board (20) is like this and opposed with it, namely they form a top board joint (22) jointly,
Two described top boards (18 of each top board joint (22), 20) be interconnected by connecting bolt (28), described connecting bolt is guided through the breach (26) be positioned in described top board (18,20)
The described breach (26) being arranged in one of them described top board (18) of each top board joint (22) is formed with the form of elongated hole (34), and
Two top board joints (22) are oppositely tilted relative to the normal plane of described longitudinal direction (8) and described elongated hole (34) so layout and orientation so mutually, namely when described portion section (10,12,14) allow described central section (10) relative to described two outer portion parts (12,14) lateral displacement when thermal expansion or contraction.
2. beam assembly according to claim 1, wherein, the tilt axis (24) of each described central section top board (18) is perpendicular to described longitudinal direction (8) orientation.
3. beam assembly according to claim 2, wherein, tilt axis (24) orientation parallel to each other of two described central section top boards (18).
4. beam assembly according to claim 3, wherein, two described central section top boards (18) have the identical angle of inclination of size (α) relative to the normal plane of described longitudinal direction (8).
5. beam assembly according to claim 4, wherein, described angle of inclination (α) in the scope of 30 ° to 60 °, and is preferably 45 °.
6. the beam assembly according to any one of claim 3 to 5, wherein, described elongated hole (34) is perpendicular to described tilt axis (24) orientation of each described central section top board (18).
7. beam assembly according to any one of claim 1 to 6, wherein, the described breach (26) being positioned at described central section top board (18) is formed with the form of elongated hole (34), and the breach (26) being positioned at described outer portion part top board (20) is formed with the form of circular hole (32).
8. beam assembly according to any one of claim 1 to 7, wherein, described elongated hole (34) is closed on whole side face.
9. beam assembly according to any one of claim 1 to 8, wherein, each described connecting bolt (28) is formed with the form of bolt or band cap screw.
10. beam assembly according to any one of claim 1 to 9, wherein, two described top boards (18 of top board joint (22), 20) so mutually clamped under final installment state, namely still kept the shifted laterally possibility of described central section (10) under temperature impact.
11. beam assemblies according to any one of claim 1 to 10, wherein, described beam (2) is girder steel.
12. beam assemblies according to any one of claim 1 to 11, wherein, described beam (2) is vertically oriented.
13. 1 kinds of structures and especially steel platform, this structure has the beam assembly according to any one of claim 1 to 12.
CN201380044616.2A 2012-08-27 2013-08-27 Beam assembly and construction erected therewith Pending CN104583502A (en)

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PCT/EP2013/067676 WO2014033103A1 (en) 2012-08-27 2013-08-27 Beam assembly and construction erected therewith

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DE102012215151A1 (en) 2014-02-27
WO2014033103A1 (en) 2014-03-06
US20150167299A1 (en) 2015-06-18
KR102142249B1 (en) 2020-08-10
JP2015535316A (en) 2015-12-10
JP6200956B2 (en) 2017-09-20
EP2888419A1 (en) 2015-07-01
KR20150048200A (en) 2015-05-06

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