CN112709336A - Method for loading torsion member and connecting support - Google Patents
Method for loading torsion member and connecting support Download PDFInfo
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- CN112709336A CN112709336A CN201911029774.6A CN201911029774A CN112709336A CN 112709336 A CN112709336 A CN 112709336A CN 201911029774 A CN201911029774 A CN 201911029774A CN 112709336 A CN112709336 A CN 112709336A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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Abstract
The invention relates to the technical field of structural engineering, and particularly discloses a method for loading a twisted member and connecting a support, which comprises the steps of calculating all loads borne by the twisted member when the support is in a fixed state, adjusting at least one support of the twisted member from the fixed state to a movable state by adopting any one of the modes of fastener connection, bonding connection, welding connection, pouring connection and the like, applying a first load on the twisted member, adjusting at least one support from the movable state to the fixed state again, and applying a second load on the twisted member. By adopting the connection mode, the torsion member can be converted between the movable state and the fixed state, the operation is simple and convenient, and the practicability is high. Based on the staged application of the load in the support connection mode, the transfer of partial internal force of the torsion member can be realized, so that the internal force of the torsion member is homogenized, and the torsion member is ensured to have good stressed deformation performance and economy.
Description
Technical Field
The invention relates to the technical field of structural engineering, in particular to a method for loading a torsion member and connecting a support.
Background
In the traditional structure, the support connection of a torsional member is generally fixed at two ends, and the connection method of the fixed support and the torsion resistance is mainly to connect a torsion resistant area of the section of the member with the support, namely to connect a peripheral area which can be used for torsion resistance, so that the torsion resistance fixed support is formed.
However, all torsion resistant nodes of the torsion member in the engineering are completed at one time, and for the traditional torsion resistant member completing the torsion resistant clamped connection, the internal force and the torsion generated under the load action are often distributed unevenly, especially when the load distribution is asymmetric, so that the stressed deformation performance and the economical efficiency of the torsion member are poor.
Disclosure of Invention
The embodiment of the invention discloses a method for loading a torsion member and connecting a support, which has the advantages of simple and convenient operation and strong practicability.
In order to achieve the above object, an embodiment of the present invention provides a method for loading a torsion member and connecting a support, including:
calculating all loads borne by the torsion member when the support of the torsion member is in a fixed state;
adjusting at least one support of the torsion member from the fixed state to a movable state in a first connection mode, and applying a first load on the torsion member;
readjusting said at least one said support from said movable state to said fixed state, applying a second load on said torsion member;
wherein the total load is a sum of the first load and the second load.
As an alternative implementation manner, in the embodiment of the present invention, the first connection manner is any one of a bolt connection, an adhesive connection, a welding connection, and a pouring connection.
As an alternative implementation manner, in an embodiment of the present invention, the torsion member is a circular tube-shaped member, and when the at least one seat of the torsion member is in the movable state, the at least one seat of the torsion member may perform a circumferential sliding movement along a circumferential section of the torsion member.
As an optional implementation manner, in an embodiment of the present invention, the first connection manner is a fastener connection, the fastener is disposed along a circumference of the torsion member, the torsion member is provided with a connection hole corresponding to the fastener, the movable state is a state where the fastener is not installed temporarily or the fastener extends into the connection hole temporarily and is not screwed, and the fixed state is a state where the fastener extends into the connection hole and is screwed.
As an alternative implementation manner, in the embodiment of the present invention, the first connection manner is an adhesive connection, the circumferential cross section of the torsion member is provided with an adhesive surface, the movable state is a state in which the adhesive surface is not adhered, and the fixed state is a state in which the adhesive surface is adhered, or,
the first connection mode is welding connection, the circumferential section of the torsion member is provided with a welding surface, the movable state is a state that the welding surface is not welded, and the fixed state is a state that the welding surface is welded.
As an optional implementation manner, in an embodiment of the present invention, the first connection manner is a casting connection, the movable state is a state where the torsion member is not cast and fixed, and the fixed state is a state where the torsion member is cast and fixed.
As an alternative implementation, in an embodiment of the present invention, the adjusting at least one of the supports of the torsion member from the fixed state to the movable state by the first connection manner further includes, before applying the first load to the torsion member, the method further includes:
and determining the internal force of each support of the torsion member in the fixed state according to the total load, wherein under the action of the total load, the internal force of at least one support is greater than the internal force of at least one other support.
As an optional implementation manner, in an embodiment of the present invention, the method further includes:
and respectively calculating the internal force of each support under the action of the first load, respectively calculating the internal force of each support under the action of the second load, and superposing the internal force of each support under the action of the first load and the internal force of each support under the action of the second load to obtain the target internal force of each support.
As an alternative embodiment, in an embodiment of the present invention, after the adjusting at least one of the supports of the torsion member from the fixed state to the movable state in the first connecting manner and before the applying the first load on the torsion member, the method further includes:
calculating the difference between the internal force of the at least one support and the internal force of the at least one other support according to the internal force of each support in a fixed state;
calculating the ratio of the first load to the total load according to the internal force difference;
and calculating the value of the first load according to the ratio and the total load.
As an alternative embodiment, in the embodiment of the present invention, after the at least one of the supports is adjusted from the movable state to the fixed state again and before the second load is applied to the torsion member, the method further includes:
and calculating the value of the second load according to the calculated first load and all the calculated loads.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the embodiment provides a method for loading a torsion member and connecting supports, which comprises the steps of calculating all loads borne by the torsion member when the support of the torsion member is in a fixed state, adjusting at least one support of the torsion member from the fixed state to a movable state by adopting any one of the connection modes of fastener connection, bonding connection, welding connection and pouring connection, applying a first load on the torsion member, adjusting at least one support from the movable state to the fixed state again, and applying a second load on the torsion member. By adopting the connection mode, the torsion member can be converted between the movable state and the fixed state, the operation is simple and convenient, and the practicability is high. Based on the staged application of the load in the support connection mode, the transfer of partial internal force of the torsion member can be realized, so that the internal force of the torsion member is homogenized, and the torsion member is ensured to have good stressed deformation performance and economy.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method for loading a torsion member and connecting a support according to an embodiment of the present invention;
fig. 2 is a graph of the torque applied by the torsion member at one time under full load with its mount in a fixed condition in an embodiment of the invention;
FIG. 3 is a schematic structural view of a bolted connection provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a pin connection provided by an embodiment of the present invention;
FIG. 5 is a schematic structural view of an adhesive connection provided by an embodiment of the present invention;
FIG. 6 is a schematic diagram of a welded connection provided by an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a cast joint according to an example of the present invention;
fig. 8 is a torque chart in which the holder a of the torsion member is adjusted to the movable state and a first load is applied in the embodiment of the present invention;
fig. 9 is a torque chart in which the mount a of the torsion member is again adjusted to a fixed state and a second load is applied in the embodiment of the present invention;
fig. 10 is a torque diagram of fig. 8 and 9 with the torques superimposed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
The embodiment of the invention discloses a method for loading a torsion member and connecting a support, which has the advantages of simple and convenient operation and strong practicability.
The following detailed description is made with reference to the accompanying drawings.
The embodiment of the invention discloses a method for loading a torsion member and calculating internal force, and please refer to fig. 1, wherein fig. 1 is a schematic flow chart of the method for loading the torsion member and calculating internal force disclosed by the embodiment of the invention. The method comprises the following steps:
101. and calculating the total load borne by the torsion member when the support of the torsion member is in a fixed state.
In this embodiment, the torsion member mainly refers to a member that bears torque, such as a column, a wall, a beam, and the like, wherein the beam may include a single-span beam, a multi-span continuous beam, a floor beam, a wall beam, a structural beam, and the like. Since the torsion member is subjected to torque in either a partially or fully constrained state, the fixed state in this embodiment includes, but is not limited to, any of a hinged, semi-rigid, or rigid connection.
Further, the entire load of the torsion member mainly includes a constant load and a live load. Specifically, the constant load includes the self-weight of the structure, the floor slab laminated layer, the floor slab surface layer, and the like, and is determined by the engineering structure method. Live loads include loads of personnel, equipment, etc., as determined by engineering functions. That is, the constant load is generated by the project itself and the live load is generated by the user. Of course, under the influence of environmental factors, the twisted member may also be subjected to dynamic loads such as wind loads and earthquake loads. In the theory of structural engineering, the specific values of these types of loads to which the torsion member is subjected can be calculated according to the formula specified in the engineering specification.
102. At least one support of the torsion member is adjusted from a fixed state to a movable state in a first connection mode, and a first load is applied to the torsion member.
In the embodiment, based on the basic theory that the distribution of the internal force of the node with high rigidity is large and the distribution of the internal force of the node with low rigidity is small, the support node with high internal force is connected in stages, the internal force under the action of partial load torque is necessarily and completely transferred to the other end, so that the small internal force at the other end of the traditional member is increased, the transfer of the partial internal force of the torsion member is realized, the internal force of the torsion member is homogenized, and the torsion member is ensured to have good stress deformation performance and economy.
As described above, the internal force of at least one support on the torsion member needs to be greater than the internal force of at least one other support to achieve the internal force equalization of the torsion member, and therefore, the internal force analysis needs to be performed on each support on the torsion member, that is, at least one support of the torsion member is adjusted from a fixed state to a movable state by using the first connection method, and before the first load is applied to the torsion member, the method further includes:
and determining the internal force of each support of the torsion member in a fixed state according to all the loads, wherein under the action of all the loads, the internal force of at least one support is greater than the internal force of at least one other support.
The following description will take a single-span torsion member with two fixed ends for bearing a half-span uniform torque load as an example.
As shown in figure 2, the two ends of the single-span torsion member are fixedly supported, and the internal force and torque load q is uniformly distributed in the half spantUnder the action, the generated full span internal force torque graph is in the zigzag linear distribution of positive and negative opposite signs of internal force torques at two ends. The opposite sign point is positioned at the approximate full span midpoint in the half span section acted by the internal force torque load. That is, the internal force torque of the half span acted by the internal force torque load is distributed in a diagonal line intersecting with the rod shaft, and the other half span is distributed in a constant straight line.
The internal force torque of the support A is as follows:
the internal force torque of the support B is as follows:
the total span internal force torque generated by the support a is the maximum peak value and is equal to 3 times of the internal force torque of the support B, that is, the internal force torque of the support a is greater than the internal force torque of the support B, so the example of the support a being at least one support connected in stages and the support B being at least one other support connected in stages is taken as an example in this embodiment.
In this embodiment, the at least one support of the torsion member is adjusted from the fixed state to the movable state by a first connection manner, that is, the first connection manner can realize the mutual conversion between the movable state and the fixed state, the torsion member is a circular tube-shaped member, and when the at least one support of the torsion member is in the movable state, the at least one support of the torsion member can perform the annular sliding movement along the circumferential section of the torsion member. Preferably, the first connection means is any one of a fastener connection, an adhesive connection, a welding connection and a pouring connection.
As a first optional implementation manner, the first connection manner is fastener connection, the fastener is disposed along a circumference of the twisted member, the twisted member has a connection hole corresponding to the fastener, the movable state is a state where the fastener is not installed or the fastener extends into the connection hole and is not screwed, and the fixed state is a state where the fastener extends into the connection hole and is screwed.
As a second alternative, the first connection mode is an adhesive connection, the circumferential section of the torsion member is provided with an adhesive surface, the movable state is a state in which the adhesive surface is not adhered, and the fixed state is a state in which the adhesive surface is adhered.
As a third alternative, the first connection mode is a welding connection, the circumferential section of the torsion member is provided with a welding surface, the movable state is a state that the welding surface is not welded, and the fixed state is a state that the welding surface is welded.
As a fourth alternative, the first connection mode is a casting connection, the movable state is a state in which the torsion member is not cast and fixed, and the fixed state is a state in which the torsion member is cast and fixed.
In this embodiment, the degree of internal force homogenization of the torsion member depends on the degree of internal force torque transfer, which depends on the relative proportion of the two stage loads. Thus, after adjusting at least one seat of the torsion member from the fixed state to the movable state in the first connection mode, and before applying the first load to the torsion member, the method further comprises:
1021. and calculating the difference between the internal force of at least one support and at least one other support according to the internal force of each support in a fixed state.
1022. And calculating the ratio of the first load to the total load according to the internal force difference.
1023. And calculating the value of the first load according to the ratio and all the loads.
103. And adjusting the at least one support from the movable state to the fixed state again, and applying a second load on the torsion member.
In this embodiment, the sum of the first load and the second load is equal to the total load, the steps 101 and 102 can obtain the values of the total load and the first load, and the value of the second load can be calculated according to the total load and the first load, so that after the at least one support is adjusted from the movable state to the fixed state again, before the second load is applied to the torsion member, the method further includes:
and calculating the value of the second load according to the calculated first load and all the loads.
The following will exemplify the stages of the respective connection methods in the torsion member by taking the respective connection methods as examples.
Case one: bolted connections (fastener connections).
As shown in fig. 3, in the present embodiment, when the fastening member is a bolt 10, the bolt 10 is provided along the circumference of the torsion member, the torsion member has a screw hole corresponding to the bolt 10, preferably, the screw hole is an oblong screw hole in a circumferential direction, correspondingly, the bolt 10 is an oblong bolt 10, the movable state is a state where the bolt 10 is not mounted or the bolt 10 is inserted into the connection hole and not tightened, and the fixed state is a state where the bolt 10 is inserted into the connection hole and tightened. The staged connection specifically comprises:
in the first stage (as shown in a and b of fig. 3, wherein b of fig. 3 is a right view of a of fig. 3), only the bolt 10 of the support a is not installed or installed in a loose state of not being tightened, under the action of the first load, the bolt 10 connected with the torsion member can slide in the annular direction in the oblong screw hole, and the torsion member is relatively freely twisted, that is, the torsion member is in a freely twisted state.
In the second stage (as shown in c and d of fig. 3, wherein d of fig. 3 is a right view of c of fig. 3), the bolt 10 which is temporarily not installed or is temporarily not screwed in the first stage is screwed, the bolt 10 is prevented from sliding in the annular direction in the oblong hole, the torsion member is not twisted freely, that is, the torsion member is in a fixed state.
Case two: pinned connections (fastener connections).
As shown in fig. 4, in the present embodiment, when the fastener connection is the pin 20 connection, the pin 20 is disposed along the periphery of the torsion member, the movable state is a state in which the pin 20 does not attack the torsion member at all, and the fixed state is a state in which the pin 20 attacks the torsion member. The staged connection specifically comprises:
in the first stage (as shown in a and b of fig. 4, wherein b of fig. 4 is a right view of a of fig. 4), only the pin 20 of the support a does not attack the torsion member temporarily, the support a of the torsion member has no torsion connection temporarily, and under the first load, the torsion member generates annular relative sliding, that is, the torsion member is in a free torsion state.
In the second stage (as shown in fig. 4 c and d, wherein d in fig. 4 is a right view of c in fig. 4), the pin 20 is tapped into the torsion member, the relative circumferential slippage is prevented, the torsion member is not twisted freely, and the torsion member is in a fixed state.
Case three: and (4) bonding and connecting.
As shown in fig. 5, in the present embodiment, the circumferential cross section of the torsion member is provided with the bonded surface, the movable state is a state in which the bonded surface is not bonded, and the fixed state is a state in which the bonded surface is bonded. The staged connection specifically comprises:
in the first stage (as shown in a and b of fig. 5, wherein b of fig. 5 is a right view of a of fig. 5), only the support A is not bonded, the support A has no torsion-resistant connection temporarily, and under the action of the first load, the torsion members generate annular relative sliding, namely, the torsion members are in a free torsion state.
In the second stage (as shown in c and d of fig. 5, wherein the reference numeral 30 is a bonding structure between the torsion member and the support A, and d of fig. 5 is a right view of c of fig. 5), the support A is bonded, the annular relative sliding is prevented, the torsion member cannot generate relative free torsion, namely, the torsion member is in a fixed state.
Case four: and (7) welding and connecting.
As shown in fig. 6, in the present embodiment, the circumferential section of the torsion member is provided with the welding surface, and the movable state is a state where the welding surface is not welded, and the fixed state is a state where the welding surface is welded. The staged connection specifically comprises:
in the first stage (as shown in a and b of fig. 6, wherein b of fig. 6 is a right view of a of fig. 6), only the support a is not welded, the support a has no torsion-resistant connection temporarily, and under the action of the first load, the torsion members generate annular relative sliding, that is, the torsion members are in a free torsion state.
In the second stage (as shown in c and d of fig. 6, wherein the reference number 40 is the welded structure between the torsion member and the support a, and d of fig. 6 is the right view of c of fig. 6), the support a is welded, the circumferential relative sliding is prevented, the torsion member is not twisted freely, that is, the torsion member is in a fixed state.
Case five: and (6) pouring and connecting.
As shown in fig. 7, in the present embodiment, the movable state is a state in which the torsion member is not cast, and the fixed state is a state in which the torsion member is cast. The staged connection specifically comprises:
in the first stage (as shown in a of fig. 7), only the support a is not cast or a small section is not cast, and under the first load, the torsion members generate annular relative slippage, that is, the torsion members are in a free torsion state.
In the second stage (as shown in b of fig. 7, where the reference numeral 50 is the casting structure between the torsion member and the support a), the support a is completely cast and fixed, the circumferential relative sliding is prevented, the torsion member has no relative free torsion, that is, the torsion member is in a fixed state.
104. And respectively calculating the internal force of each support under the action of the first load, respectively calculating the internal force of each support under the action of the second load, and superposing the internal force of each support under the action of the first load and the internal force of each support under the action of the second load to obtain the target internal force of each support.
In this embodiment, the target internal force of each support is the internal force of the torsion member after internal force equalization.
The following will describe in detail the calculation process of the internal force (taking torque as an example) of the torsion member of the present invention with reference to the examples and drawings:
the entire load q to which the torsion member is subjectedtDivided into a first load qt1And a second load qt2Two parts, applied in stages.
In the first phase, shown in fig. 8, the support a is temporarily disconnected and is in a free state in which it can twist. The torsion member is in a state that one end of the cantilever is fixed and the other end is fixed and applies a first load qt1. Under the first load qt1Under the action, the internal force torque diagram of the twisted member is in a half-span oblique line and half-span horizontal straight line and is distributed in a full-span negative broken line shape.
The internal force torque of the A end is as follows:
TA1＝0
the internal force torque of the support B is as follows:
in the second stage, as shown in fig. 9, the A-stands temporarily not connected in the first stage are connected to adjust the torsion member to a state of fixing both ends, and a second load q is appliedt2. At the second load qt2Under the action, the internal force torque diagram of the torsion member is in a traditional distribution.
The internal force torque of the support A is as follows:
the internal force torque of the support B is as follows:
as shown in fig. 10, the two stages are superimposed.
The full-load internal force torque of the support A is as follows:
the full-load internal force torque of the support B is as follows:
the torques of the first support A and the second support B calculated by the two formulas are the torques obtained after the torsion member adopts the staged connection and staged load application of the invention, and compared with the traditional connection and load application mode of the torsion member, the torque of the first support A is reduced
Torque of the second mount B is increased
I.e. a part of the torque of the first abutment a is transferred to the second abutment B with a transfer amplitude of
Torque equalization of the torsion member is achieved.
When in use
When the temperature of the water is higher than the set temperature,
i.e., the internal force torque peak is reduced 1/3 from conventional.
By adopting the scheme of the invention, the invention has the following beneficial effects:
1. the control internal force torque is reduced by 10-30% compared with the control internal force torque analyzed by the traditional theory.
2. The internal force torque of the support is reduced, the peak value is reduced, the two ends are homogenized, the cross sections of the support connecting devices at the two ends or the support components at the two ends can be unified, the standardization is facilitated, the materials are saved, and the manufacturing and the installation are convenient.
The embodiment of the invention provides a method for loading a torsional member and connecting a support, which is characterized in that the movable state and the fixed state of the torsional member are converted by adopting connection modes such as bolt connection, bonding connection, welding connection, pouring connection and the like, and the method is simple and convenient to operate and high in practicability. Based on the staged application of the load in the support connection mode, the transfer of partial internal force of the torsion member can be realized, so that the internal force of the torsion member is homogenized, and the torsion member is ensured to have good stressed deformation performance and economy.
The above detailed description of the method for loading a torsion member and connecting a support seat disclosed in the embodiments of the present invention is provided, and the principle and the embodiment of the present invention are explained in detail by applying specific examples, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A method of loading a torsion member and attaching a mount, the method comprising:
calculating all loads borne by the torsion member when the support of the torsion member is in a fixed state;
adjusting at least one support of the torsion member from the fixed state to a movable state in a first connection mode, and applying a first load on the torsion member;
readjusting said at least one said support from said movable state to said fixed state, applying a second load on said torsion member;
wherein the total load is a sum of the first load and the second load.
2. The method of claim 1, wherein the first connection means is any one of a bolt connection, an adhesive connection, a welded connection, and a cast connection.
3. A method as claimed in claim 2, wherein the torsion member is a tubular member and the at least one abutment of the torsion member is moveable to allow circumferential sliding movement of the at least one abutment of the torsion member along a circumferential cross-section of the torsion member.
4. The method according to claim 3, wherein the first connection manner is fastener connection, the fastener is disposed along a circumference of the torsion member, the torsion member is provided with a connection hole corresponding to the fastener, the movable state is a state where the fastener is not installed or the fastener is inserted into the connection hole and not tightened, and the fixed state is a state where the fastener is inserted into the connection hole and tightened.
5. A method as claimed in claim 3, wherein the first connection is an adhesive connection, the circumferential cross-section of the torsion member is provided with an adhesive surface, the movable state is a state in which the adhesive surface is not adhered, the fixed state is a state in which the adhesive surface is adhered, or,
the first connection mode is welding connection, the circumferential section of the torsion member is provided with a welding surface, the movable state is a state that the welding surface is not welded, and the fixed state is a state that the welding surface is welded.
6. A method according to claim 3, wherein the first connection is a cast connection, the movable state is a state in which the torsion member is not cast fixed, and the fixed state is a state in which the torsion member is cast fixed.
7. A method according to any one of claims 1 to 6, wherein the adjusting of at least one said abutment of the torsion member from the fixed condition to the movable condition in the first connection comprises, prior to applying a first load to the torsion member:
and determining the internal force of each support of the torsion member in the fixed state according to the total load, wherein under the action of the total load, the internal force of at least one support is greater than the internal force of at least one other support.
8. The method of any of claims 1 to 6, further comprising:
and respectively calculating the internal force of each support under the action of the first load, respectively calculating the internal force of each support under the action of the second load, and superposing the internal force of each support under the action of the first load and the internal force of each support under the action of the second load to obtain the target internal force of each support.
9. A method according to any one of claims 1 to 6, wherein after said adjusting at least one said abutment of the torsion member from the fixed condition to the movable condition in the first connection and before said applying a first load on the torsion member, the method further comprises:
calculating the difference between the internal force of the at least one support and the internal force of the at least one other support according to the internal force of each support in a fixed state;
calculating the ratio of the first load to the total load according to the internal force difference;
and calculating the value of the first load according to the ratio and the total load.
10. The method of claim 9, wherein after readjusting the at least one mount from the movable state to the fixed state, the method further comprises, prior to applying a second load on the torsion member:
and calculating the value of the second load according to the calculated first load and all the calculated loads.
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| CN201911029774.6A CN112709336B (en) | 2019-10-24 | 2019-10-24 | Method for loading torsion member and connecting support |
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| CN201911029774.6A CN112709336B (en) | 2019-10-24 | 2019-10-24 | Method for loading torsion member and connecting support |
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| CN112709336A true CN112709336A (en) | 2021-04-27 |
| CN112709336B CN112709336B (en) | 2022-03-04 |
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| CN201911029774.6A Active CN112709336B (en) | 2019-10-24 | 2019-10-24 | Method for loading torsion member and connecting support |
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