CN106638614A - Dynamic regulation and control system and method for bidirectional steel supporting structure - Google Patents
Dynamic regulation and control system and method for bidirectional steel supporting structure Download PDFInfo
- Publication number
- CN106638614A CN106638614A CN201610993253.2A CN201610993253A CN106638614A CN 106638614 A CN106638614 A CN 106638614A CN 201610993253 A CN201610993253 A CN 201610993253A CN 106638614 A CN106638614 A CN 106638614A
- Authority
- CN
- China
- Prior art keywords
- jack
- bracing members
- axle power
- support structure
- steel support
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
- E02D2200/146—Springs
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides a dynamic regulation and control system for a bidirectional steel supporting structure. The dynamic regulation and control system for the bidirectional steel supporting structure comprises the bidirectional steel supporting structure, axial force loading tools and a control center. The bidirectional steel supporting structure comprises flexible joints which are located at junctions of horizontal supports and vertical supports. Each flexible joint comprises an outer box, an inner box, a first connecting assembly and a second connecting assembly, wherein a first hole and a second hole coaxial with the first hole are formed in the surface of the outer box, and the inner box is arranged in the outer box; the first connecting assembly and the second connecting assembly penetrate through the first hole and the second hole correspondingly to be connected with the inner box; and elastic elements are arranged between the outer wall of the inner box and the inner wall of the outer box. The axial force loading tools are used for axial force loading of the horizontal supports or the vertical supports. The control center is used for controlling the working states of the axial force loading tools. By adoption of the dynamic regulation and control system for the bidirectional steel supporting structure, the problems that in the prior art, the additional bending moment of the bidirectional steel supporting structure is too large during axial force loading, and the bidirectional steel supporting structure cannot be regulated and controlled in real time are solved.
Description
Technical field
The invention belongs to the realm of building construction, is related to the dynamic regulation system and dynamic regulation of a kind of two-way steel support structure
Method.
Background technology
At present in Large Foundation Pit construction, large underground area is excavated typically using armored concrete as the level in hole
Support, or carry out bracing members temporary support, but this by setting up dividing wall to be divided into Large Foundation Pit after several sleeve configuration foundation ditches
The construction cost for planting way is higher, and construction period is also very long, and xoncrete structure is that workload is removed after the completion of construction greatly,
Noise is big, seriously polluted, is unfavorable for environmental protection.
At present another kind method is exactly that it overcomes concrete as the horizontal support after underground excavation with two-way bracing members
The shortcoming of horizontal support, with reusable, beneficial to the advantages of environmental protection.
It is by forming support to applying prestressing force in end by root bracing members during using conventional two-way steel support structure
System, it vertically and horizontally supports intersection typically using flange joint or anchor ear node, and this support node is rigid joint.This
Art personnel often ignore and applicant have observed that be：There is applying when prestressing force is applied in two-way steel support structure
Prestressed sequencing and the axial deformation of support, apply prestressed support and produce axial crushing deformation.Due to rigidity
The presence of node, this axial crushing deformation can by rigid joint be directly passed to it is vertical to support, vertically to support
Will bend, bending it is vertical to support will necessarily to apply prestressed to support neighbouring bracing members in the same direction generation
Node additional bending moment, can so be stepped up the stress of bracing members.Therefore, after construction is supported to some, previously construction is received
The bracing members stress of power is stepped up, and can cause the overstressing of support system and fail.
As shown in figure 1, installing jack at the digital position shown in lower Fig. 1, and apply prestressing force one by one by numerical order
(such as 756 tons), i.e., first apply No. 1 support prestressing force, then applies No. 2 support prestressing force, then gradually applies to No. 12 supports
Prestressing force, during applying stress according to sequence number, applies stress value and gradually increases, and result of calculation shows, the 1st loading
When maximum stress value be -160.5MPa, and it is last apply No. 12 and support prestressing force when, stress value reach maximum -
391.8Mpa。
Above-mentioned result of calculation shows, because the two-way steel support structure using rigid joint is applying prestressing force by root
When, the bracing members for causing construction in later period are produced into the effect of additional bending moment to applying prestressed bracing members, respective support
Stress maximum increases to 391.8MPa by 160.5MPa, when the tolerance range more than steel support structure, it is possible to cause to prop up
The overstressing of support body system and fail.
The content of the invention
It is an object of the invention to provide the dynamic regulation system and dynamic regulation method of a kind of two-way steel support structure, solution
Certainly two-way steel support structure additional bending moment when axle power is loaded is excessive with additional stress in prior art and two-way steel cannot be propped up
Support structure carries out the problem of real-time monitoring.
To solve above-mentioned technical problem, the invention provides a kind of dynamic regulation system of two-way steel support structure, including
Two-way steel support structure, axle power loading tool and control centre；
The two-way steel support structure includes mutually perpendicular horizontal support and vertical support and is arranged at the level
Support the Flexible Node with the vertical support junction；
The Flexible Node includes outer case, internal box, the first coupling assembly and the second coupling assembly, and the outer case is
Hollow structure, its surface offers coaxial the first hole and the second hole, and the internal box is arranged inside the outer case；
First coupling assembly and second coupling assembly are each passed through first hole and second hole
It is connected with the internal box；
Arrange between the inwall of the outer wall of the internal box and the outer case and have elastic component；
The horizontal support is connected with the outer case, the vertical support respectively with first coupling assembly and described
Second coupling assembly connects；
The axle power loading tool carries out axle power loading to the horizontal support or the vertical support；
The control centre controls the working condition of the axle power loading tool.
Further, the outer case and internal box are cube；
Four faces of the outer case and horizontal plane are respectively the first face for being parallel to each other and the second face, are parallel to each other
The 3rd face and fourth face, offer coaxial the first hole and the second hole on first face and the second face respectively.
Further, the internal box is fixed with two faces of plane-parallel with sliding part, the sliding part and institute
State the inwall contact of outer case.
Further, the Flexible Node also includes the 3rd coupling assembly and the 4th coupling assembly,
First coupling assembly runs through first hole, and its one end be connected with the internal box, the other end for
The vertical support connection；
Second coupling assembly runs through second hole, and its one end be connected with the internal box, the other end for
The vertical support connection；
Described 3rd coupling assembly one end is connected with the 3rd face of the outer case, and the other end is used for and the horizontal support
Connection；
Described 4th coupling assembly one end is connected with the fourth face of the outer case, and the other end is used for and the horizontal support
Connection.
Further, first coupling assembly and second coupling assembly weld with the internal box or one into
Type；
3rd component and the 4th coupling assembly are welded or are integrally formed with the outer case.
Further, first coupling assembly includes head rod and first flange, and the second coupling assembly includes the
Two connecting rods and second flange, the 3rd coupling assembly includes the 3rd connecting rod and the 3rd flange, and the 4th coupling assembly includes the 4th
Connecting rod and the 4th flange,
The head rod runs through first hole, and its one end is connected with the internal box, the other end and described the
One flange connects, and the first flange is used to be connected with the vertical support；
Second connecting rod runs through second hole, and its one end is connected with the internal box, the other end and described the
Two flanges connect, and the second flange is used to be connected with the vertical support；
Described 3rd connecting rod one end is connected with the 3rd face of the outer case, and the other end is connected with the 3rd flange,
3rd flange is used to be connected with the horizontal support；
Described 4th connecting rod one end is connected with the fourth face of the outer case, and the other end is connected with the 4th flange,
4th flange is used to be connected with the horizontal support.
Further, the flexible member is disk spring.
Further, the axle power loading tool is jack, and the jack is provided with pressure sensor and displacement is passed
Sensor,
The pressure sensor is used to determine the axle power of the jack loading, and institute's displacement sensors are used to determine described
The length that jack stretches out；
The control centre receives the data that the pressure sensor and institute's displacement sensors are determined.
Present invention also offers a kind of side for carrying out dynamic regulation to two-way steel support structure using above-mentioned regulator control system
Method, comprises the steps：
S1：Bracing members in the two-way steel support structure are grouped, the control centre is to the steel in same group
Support corresponding jack to synchronize regulation and control, the jack pair is controlled with the bracing members in group simultaneously according to setting shaft force value
Axle power loading is carried out, when loading is completed, institute's displacement sensors are using the extension elongation of the jack for measuring as benchmark position
Shifting is transferred to the control centre；
S3：Institute's displacement sensors are monitored the real-time extension elongation of the jack and are transferred to the control centre；
S4：The control centre compares the real-time extension elongation of the jack and the basis displacement；
S5：When the real-time extension elongation is unequal with the basis displacement, the control centre is controlled with group
The working condition of all jack, the real-time extension elongation for making all jack is equal to the basis displacement.
Further, the jack is hydraulic jack, in the S1, all bracing members in same group are corresponding
Jack accesses same pumping plant, and the control centre is driven with all described jack in group while work by the pumping plant
Make, complete the axle power to the bracing members in same group and load.
Preferably, the control centre is computer automatic control system, and the computer automatic control system passes through PLC
Control pumping plant drives the jack.
Further, the S1 is specifically included：Bracing members in two-way steel support structure are grouped, by identical axle power
Bracing members are divided into one group, and the control centre synchronizes regulation and control to the corresponding jack of bracing members in same group.
Further, the S1 is specifically included：Bracing members in two-way steel support structure are grouped, by all water
Flat bracing members and all vertical bracing members are divided into same group, the control centre very heavy jacking corresponding to all bracing members
Row synchronization modulation.
Further, the S1 is specifically included：All Horizontal steelwork bracings are divided into same group, all vertical steels
Support is divided into another group, first carries out prestressing force loading simultaneously to all Horizontal steelwork bracings, then same to vertical bracing members again
Shi Jinhang prestressing force is loaded.
Further, the S1 is specifically included：
S1.1：The Horizontal steelwork bracing and the vertical bracing members are installed, then install is carried out to the Horizontal steelwork bracing
The jack of axle power loading, but the jack that the vertical bracing members are carried out with axle power loading is not installed；
S1.2：The control centre synchronizes regulation and control to the corresponding jack of all Horizontal steelwork bracings, to all
The Horizontal steelwork bracing carries out axle power loading simultaneously；
S1.3：Installation carries out the jack of axle power loading to the vertical bracing members；
S1.4：The control centre synchronizes regulation and control to the corresponding jack of all vertical bracing members, to all
The vertical bracing members carry out axle power loading simultaneously.
Further, the S1.2 is specifically included：The corresponding jack of all Horizontal steelwork bracings is accessed in the first pumping plant,
The all jack in first group are synchronously driven by first pumping plant using control centre, the Horizontal steelwork bracing is carried out
Prestressing force is loaded；
The S1.4 is specifically included：The corresponding jack of all vertical bracing members is accessed in the second pumping plant, using control
The all jack in second group are synchronously driven centrally through second pumping plant, prestressing force is carried out to the vertical bracing members and is added
Carry.
Further, the S1 is specifically included：It is simultaneously right from the two ends of bracing members when bracing members are carried out with axle power loading
Bracing members carry out axle power loading.
Further, the S1 is specifically included：At the two ends of bracing members, one jack, control centre's control are respectively set
Two jack of system carry out axle power loading to bracing members simultaneously.
Further, the S1 is specifically included：One jack is set in the middle part of bracing members, using described very heavy
Jacking row axle power is loaded.
Further, the S5 is specifically included：When the corresponding jack of any one bracing members extension elongation with it is described
When basis displacement is unequal, control centre's control is adjusted with the corresponding jack of all bracing members in group, makes same
The extension elongation of all jack in group is equal to the basis displacement.
Further, the dynamic regulation system also includes PTO, the PTO and described thousand
The connection of jin top, to the jack power is provided；The control centre is connected with the PTO, controls the power
The power output of output device.
Further, the PTO is electrohydraulic dynamic device, and the electrohydraulic dynamic device includes proportional overflow
Valve, the control centre is connected with the proportional pressure control valve, controls the work of the proportional pressure control valve, and the S1 includes：It is described
Control centre controls the proportional pressure control valve so as to adjust to setting pressure, the PTO is defeated to the jack
Go out power.
Further, the S1 is specifically included：
Bracing members in the two-way steel support structure are grouped, the control centre controls the power output dress
Put, adjust its power output, the PTO is to all described jack output power in group；
The bracing members in same group are carried out with axle power loading according to setting shaft force value with all described jack in group, is loaded
When completing, institute's displacement sensors are transferred to the extension elongation of the jack for measuring in the control as basis displacement
The heart.
Further, the S5 is specifically included：When the jack extension elongation is more than the basis displacement,
The control centre controls the PTO and exports power to the jack, and the jack is in setting
Its extension elongation is adjusted under axle power value, the extension elongation is foreshortened to equal to the basis displacement.
Further, in the S5, when the extension elongation of the jack is more than the basis displacement, the jack exists
Cannot shorten under setting shaft force value its extension elongation make the extension elongation be equal to the basis displacement when,
The jack pair bracing members carry out axle power off-load, and adjust its extension elongation, and make the jack stretches out length
Degree is equal to the basis displacement, and axle power value of the pressure sensor using now jack after off-load is used as new setting shaft
Force value is transferred to the control centre.
Further, in the S5, when the jack pair bracing members carry out axle power off-load, using the side of stepping off-load
Formula, the axle power value that each off-load of jack is fixed, and adjust shortening its extension elongation, through stepping off-load and adjustment for several times, directly
Extension elongation to the jack is foreshortened to equal to the basis displacement.
Further, the S5 is specifically included：When the jack extension elongation is less than the basis displacement,
The control centre controls the PTO and exports power to the jack, and the jack is in setting
Its extension elongation is adjusted under axle power value, the extension elongation is foreshortened to equal to the basis displacement.
Further, in the S5, when the extension elongation of the jack is less than the basis displacement, the jack exists
Cannot adjust under setting shaft force value its extension elongation make the extension elongation be equal to the basis displacement when,
The jack pair bracing members carry out axle power loading, and adjust its extension elongation, and make the jack stretches out length
Degree is equal to the basis displacement, and axle power value of the pressure sensor using now jack after off-load is used as new setting shaft
Force value is transferred to the control centre.
Further, in the S5, when the jack pair bracing members carry out axle power loading, the side loaded using stepping
Formula, jack loads every time fixed axle power value, and adjusts its extension elongation, loads and adjusts through stepping for several times, until institute
The extension elongation for stating jack is foreshortened to equal to the basis displacement.
Further, the jack carries out axle power loading by way of stepping loading to bracing members, when described very heavy
When the axle power value of top loading is equal to the maximum internal stress of bracing members itself unstability, the jack stops axle power loading, the pressure
The axle power value of now jack is transferred to the control centre by force snesor as axle power higher limit.
Compared with prior art, the dynamic regulation system of the two-way steel support structure that the present invention is provided, on the one hand using soft
Property node, horizontal support is not directly contacted with vertical support, when to horizontal support load axle power when, horizontal support produce pressure
Compression deformation will not directly act on the vertical support being connected with internal box so that the lateral displacement of vertical support is greatly reduced, this
Sample just effectively reduces the additional bending moment produced to vertical support when horizontal support axle power is loaded, and improves whole two-way bracing members
The force-bearing situation of structure；On the other hand, axle power loading tool is controlled by control centre, is capable of achieving to the real-time of bracing members axle power
Regulation and control, prevent because external environment change causes the stress of the two-way steel support structure for having loaded to change.What the present invention was provided
Regulation and control method can realize the real-time monitoring to two-way steel axial force of the supports and displacement under various different operating modes, be that base pit engineering faces
When steel shotcrete support system provide safer guarantee.
Description of the drawings
Fig. 1 is the schematic diagram of two-way steel support structure axle power loading in prior art；
Fig. 2 is a kind of schematic diagram of the dynamic regulation system of two-way steel support structure provided in an embodiment of the present invention；
Fig. 3-4 be a kind of two-way steel support structure provided in an embodiment of the present invention dynamic regulation system in Flexible Node
Structural representation；
Fig. 5-8 be a kind of two-way steel support structure provided in an embodiment of the present invention dynamic regulation method in it is a kind of to steel
Support structure carries out the schematic diagram of the method for axle power loading.
Specific embodiment
Below in conjunction with the drawings and specific embodiments to a kind of dynamic regulation system of two-way steel support structure proposed by the present invention
System is described in further detail.According to following explanation and claims, advantages and features of the invention will become apparent from.Need explanation
, accompanying drawing in the form of simplifying very much and uses non-accurately ratio, only conveniently, lucidly to aid in illustrating this
The purpose of inventive embodiments.
As in Figure 2-4, the invention provides a kind of dynamic regulation system of two-way steel support structure, it is characterised in that
Including two-way steel support structure, axle power loading tool 4 and control centre；
The two-way steel support structure includes mutually perpendicular horizontal support 1 and vertical support 2 and is arranged at the water
Flat support 1 and the Flexible Node 3 of the junction of the vertical support 2；
The Flexible Node 3 includes outer case 31, internal box 32, the first coupling assembly 35 and the second coupling assembly 36, institute
It is hollow structure to state outer case 31, and its surface offers coaxial the first hole 311 and the second hole 312, the internal box 32
It is arranged inside the outer case 31；
First coupling assembly 35 and second coupling assembly 36 are each passed through first hole 311 and described
Two holes 312 are connected with the internal box 32；
Arrange between the inwall of the outer wall of the internal box 32 and the outer case 31 and have elastic component 33；
The horizontal support 1 is connected with the outer case 31, the vertical support 2 respectively with first coupling assembly 35
Connect with second coupling assembly 36；
4 pairs of horizontal supports 1 of the axle power loading tool or the vertical support 2 carry out axle power loading；
The control centre controls the working condition of the axle power loading tool 4.
In the scheme of the present embodiment, Flexible Node 3 includes inside and outside casing, and flexible member 33, level are provided between the two
1 is supported to be connected with outer case 31, vertical support 2 is connected with internal box 32, and now, horizontal support 1 does not directly connect with vertical support 2
Touch, when axle power is loaded to horizontal support 1, horizontal support 1 can produce compression, and now, the axle power of horizontal support 1 can be transmitted
To outer case 31, outer case 31 is set to produce axial displacement, because outer case 31 is connected with internal box 32 by flexible member 33
Connect, now, the displacement of outer case 31 will not directly act on internal box 32, but first can transmit the axle power of horizontal support 31
To flexible member 33, the deformation of the forced compression of flexible member 33, so, flexible member 33 passes to the displacement of internal box 32 can significantly
Reduce, i.e. the now displacement of internal box 32 will be less than the displacement of outer case 31, and the side of the vertical support 2 being connected with internal box 32
Also will greatly reduce to displacement.By above-mentioned technical proposal, can effectively reduce when the axle power of horizontal support 1 is loaded to vertical
The additional bending moment that support 2 is produced.In the same manner, when axle power loading is carried out to vertical support 2, also will significantly reduce to horizontal support 1
The additional bending moment of generation.On this basis, the present invention is also regulated and controled by control centre to axle power loading tool 4, Ke Yishi
The now enforcement to two-way steel support structure regulates and controls, and prevents because external environment changes the two-way steel support structure for causing to have loaded
Stress changes.
Further, the outer case 31 and internal box 32 be cube (can also be for example spherical for other shapes
Deng), the first face for being parallel to each other and the second face are respectively on the outer case 31 and four faces of horizontal plane, are parallel to each other
The 3rd face and fourth face, offer coaxial the first hole 311 and the second hole on first face and the second face respectively
312。
Further, the internal box 32 is fixed with two faces of plane-parallel with sliding part 34, the sliding part
34 contact with the inwall of the outer case 31.
Preferably, the sliding part 34 is corrosion resistant plate, and two faces of the internal box 32 and plane-parallel are with one
Corrosion resistant plate is welded, and the corrosion resistant plate applies lubricating oil with the contact surface coating of the outer case 31.Such scheme can be effective
The Influence of Displacement for reducing the frictional force that relative motion is produced between internal box 32 and outer case 31, reducing between the two.It is preferred that
, corrosion resistant plate welding can also the less object replacement of other coefficient of frictions.
Further, the Flexible Node 3 also includes the 3rd coupling assembly 37 and the 4th coupling assembly 38,
First coupling assembly 35 runs through first hole 311, and its one end is connected with the internal box 32, the other end
It is connected with the vertical support 2；
Second coupling assembly 36 runs through second hole 312, and its one end is connected with the internal box 32, the other end
It is connected with the vertical support 2；
Described one end of 3rd coupling assembly 37 is connected with the 3rd face of the outer case 31, the other end and the horizontal support
1 connection；
Described one end of 4th coupling assembly 38 is connected with the fourth face of the outer case 31, the other end and the horizontal support
1 connection.
Further, first coupling assembly 35 and second coupling assembly 36 are welded or one with the internal box 32
It is body formed；
3rd component 37 and the 4th coupling assembly 38 are welded or are integrally formed with the outer case 31.
Further, first coupling assembly 35 includes head rod 351 and first flange 352, the second connection group
Part 36 includes the second connecting rod 361 and second flange 362, and the 3rd coupling assembly 37 includes the 3rd connecting rod 371 and the 3rd flange
372, the 4th coupling assembly 38 includes the 4th connecting rod 381 and the 4th flange 382,
The head rod 351 runs through first hole 311, and its one end is connected with the internal box 32, the other end
It is connected with the first flange 352, the vertical support 2 is connected with the first flange 352；
Second connecting rod 361 runs through second hole 312, and its one end is connected with the internal box 32, the other end
It is connected with the second flange 362, the vertical support 2 is connected with the second flange 362；
Described one end of 3rd connecting rod 371 is connected with the 3rd face of the outer case 31, the other end and the 3rd flange
372 connections, the horizontal support 1 is connected with the 3rd flange 372；
Described one end of 4th connecting rod 381 is connected with the fourth face of the outer case 31, the other end and the 4th flange
382 connections, the horizontal support 1 is connected with the 4th flange 382.
Preferably, the outer case 31 includes symmetrical left box body and right case, and the left box body and the right case lead to
Cross bolt connection and constitute the outer case 31.Outer case 31 is arranged into two parts, can be during installation so that interior case
Body 32 is easier to be installed inside outer case 31.
Preferably, the flexible member 33 is disk spring.The disk spring of a certain specification for selecting should be with bracing members
Resistance to overturning of the system in the construction stage is adapted, and prevents bracing members unstability, in the present embodiment, the disk spring of selection because
Power needed for its compression 75% is noted is the support force of bracing members unstability, prevents bracing members unstability.
In such scheme, the axle power loading tool 4 is jack, and the jack is provided with pressure sensor and position
Displacement sensor,
The pressure sensor is used to determine the axle power of the jack loading, and institute's displacement sensors are used to determine described
The length that jack stretches out；
The control centre receives the data that the pressure sensor and institute's displacement sensors are determined.
As preferred, jack can be respectively provided with the two ends of the horizontal support 1 or the vertical support 2, carried out
When axle power is loaded, the jack at two ends carries out axle power loading simultaneously.Two ends carry out axle power loading simultaneously, can effectively reduce steel
The slenderness ratio of support, reduces additional bending moment and additional stress.
Present invention also offers a kind of side for carrying out dynamic regulation to two-way steel support structure using above-mentioned regulator control system
Method, comprises the steps：
S1：Bracing members in the two-way steel support structure are grouped, the control centre is to the steel in same group
Support corresponding jack to synchronize regulation and control, the jack pair is controlled with the bracing members in group simultaneously according to setting shaft force value
Axle power loading is carried out, when loading is completed, institute's displacement sensors are using the extension elongation of the jack for measuring as benchmark position
Shifting is transferred to the control centre；
S3：Institute's displacement sensors are monitored the real-time extension elongation of the jack and are transferred to the control centre；
S4：The control centre compares the real-time extension elongation of the jack and the basis displacement；
S5：When the real-time extension elongation is unequal with the basis displacement, the control centre is controlled with group
The working condition of all jack, the real-time extension elongation for making all jack is equal to the basis displacement.
Further, the jack is hydraulic jack, in the S1, by all described very heavy apical grafting in same group
Enter same pumping plant, the control centre is driven by the pumping plant and worked simultaneously with all described jack in group, completes right
Load with the axle power of the bracing members in group.In above-mentioned technical proposal, specifically, in the end of bracing members and base pit engineering
Go along with sb. to guard him between a jack is installed, then simultaneously prestressing force is carried out to the bracing members in same group using the jack and is added
Carry.It may occur to persons skilled in the art that, when bracing members are carried out with prestressing force loading, should be not only limited to using very heavy
Top, can also be using other instruments such as hydraulic jack etc..Therefore, prestressing force loading is carried out using different instruments, should
Belong to protection scope of the present invention.
Further, the control centre is computer automatic control system, and the computer automatic control system passes through
PLC control pumping plants drive the jack.It is uniformly controlled using computer automatic control system, can be avoided because manually-operated
Otherness and caused jack produces otherness in synchronous working, it is and in hgher efficiency.
Further, the S1 is specifically included：Bracing members in two-way steel support structure are grouped, by identical axle power
Bracing members are divided into one group, and the control centre synchronizes regulation and control to the corresponding jack of bracing members in same group.
Further, the S1 is specifically included：Bracing members in two-way steel support structure are grouped, will be all described
Horizontal steelwork bracing and all vertical bracing members are divided into same group, and the control centre is to the corresponding jack of all bracing members
Synchronize regulation and control.Simultaneously prestressing force is applied to all bracing members, additional bending moment shadow caused by prestressing force can be applied by root
Sound is reduced to minimum so that steel support structure apply it is prestressed during do not affected by excessive additional stress, can be with
The stability of steel support structure is effectively ensured.
As viewed in figures 5-8, further, the S1 is specifically included：All Horizontal steelwork bracings are divided into same group, institute
There is the vertical steel to support and be divided into another group, first simultaneously prestressing force loading is carried out to all Horizontal steelwork bracings, it is then right again
Vertical bracing members carry out prestressing force loading simultaneously.
Further, the S1 is specifically included：
S1.1：The Horizontal steelwork bracing and the vertical bracing members are installed, then install is carried out to the Horizontal steelwork bracing
The jack of axle power loading, but the jack that the vertical bracing members are carried out with axle power loading is not installed；Its objective is applying
During the load in single direction, because the support constraint in another direction is not yet formed, support system bulk deformation shows as supporting
The compression of body, therefore be not in additional bending moment；
S1.2：The control centre synchronizes regulation and control to the corresponding jack of all Horizontal steelwork bracings, to all
The Horizontal steelwork bracing carries out axle power loading simultaneously；
S1.3：Installation carries out the jack of axle power loading to the vertical bracing members；
S1.4：The control centre synchronizes regulation and control to the corresponding jack of all vertical bracing members, to all
The vertical bracing members carry out axle power loading simultaneously.
Further, the S1.2 is specifically included：The corresponding jack of all Horizontal steelwork bracings is accessed in the first pumping plant,
The all jack in first group are synchronously driven by first pumping plant using control centre, the Horizontal steelwork bracing is carried out
Prestressing force is loaded；
The S1.4 is specifically included：The corresponding jack of all vertical bracing members is accessed in the second pumping plant, using control
The all jack in second group are synchronously driven centrally through second pumping plant, prestressing force is carried out to the vertical bracing members and is added
Carry.
Wherein, the control centre is computer automatic control system, and the computer automatic control system is controlled by PLC
Make first pumping plant or second pumping plant drives the work of the jack.
Further, the S1 is specifically included：It is simultaneously right from the two ends of bracing members when bracing members are carried out with axle power loading
Bracing members carry out axle power loading.By adopting above-mentioned technical proposal, when bracing members are carried out with axle power loading, due to from bracing members
Two ends bracing members are loaded simultaneously, then its compression is compared situation about only being loaded from bracing members one end and is reduced
The axial crushing deformation that half, i.e. bracing members are produced when two ends load simultaneously is Δ L=NL/ (2EI), and is only carried out from one end
The axial crushing deformation that loading is produced is Δ L=NL/EI).As such, it is possible to reduce to a certain extent to perpendicular direction
The additional bending moment of bracing members, so as to the additional stress that the bracing members for reducing vertical direction are produced to the bracing members of subsequent load, drop
Low bearing stress, shortens construction period.
Further, the S1 is specifically included：At the two ends of bracing members, one jack, control centre's control are respectively set
Two jack of system carry out axle power loading to bracing members simultaneously.It may occur to persons skilled in the art that, in the present case
It is not limited solely to using jack as axle power loading tool, other instruments such as hydraulic jack etc. can add as axle power
The instrument of load is applied in the present invention, it will be understood that the selection of this instrument also belongs to protection scope of the present invention.
Further, the S1 is specifically included：One jack is set in the middle part of bracing members, using described very heavy
Jacking row axle power is loaded.When jack is arranged in middle part, it is only necessary to which a jack is capable of achieving previous embodiment
In the effect of axle power loading is carried out using two jack at bracing members two ends, can effectively reduce the quantity of jack, reach
To cost-effective purpose.
Further, the S5 is specifically included：When the corresponding jack of any one bracing members extension elongation with it is described
When basis displacement is unequal, control centre's control is adjusted with the corresponding jack of all bracing members in group, makes same
The extension elongation of all jack in group is equal to the basis displacement.
Further, the dynamic regulation system also includes PTO, the PTO and described thousand
The connection of jin top, to the jack power is provided；The control centre is connected with the PTO, controls the power
The power output of output device.
Further, the PTO is electrohydraulic dynamic device, and the electrohydraulic dynamic device includes proportional overflow
Valve, the control centre is connected with the proportional pressure control valve, controls the work of the proportional pressure control valve, and the S1 includes：It is described
Control centre controls the proportional pressure control valve so as to adjust to setting pressure, the PTO is defeated to the jack
Go out power.
Further, the S1 is specifically included：
Bracing members in the two-way steel support structure are grouped, the control centre controls the power output dress
Put, adjust its power output, the PTO is to all described jack output power in group；
The bracing members in same group are carried out with axle power loading according to setting shaft force value with all described jack in group, is loaded
When completing, institute's displacement sensors are transferred to the extension elongation of the jack for measuring in the control as basis displacement
The heart.
It is described according to the deviation between the extension elongation and the basis displacement of jack in above-mentioned control method
S5 specifically includes various situations：
The first situation is：When the jack extension elongation is more than the basis displacement, the jack is in setting shaft
Its extension elongation is adjusted under force value, when the extension elongation can be made to foreshorten to equal to the basis displacement, is now done directly
Regulation and control step, it is ensured that the axle power of bracing members and displacement are in setting range.
Second situation be：When the extension elongation of the jack is more than the basis displacement, the jack is in setting
Cannot shorten under axle power value its extension elongation make the extension elongation be equal to the basis displacement when, show that axle power value now is inclined
Greatly, at this time, it may be necessary to the jack pair bracing members carry out axle power off-load, and its extension elongation is adjusted, makes stretching for the jack
Go out length equal to the basis displacement, complete regulation and control.Meanwhile, axle of the pressure sensor by now jack after off-load
Force value is transferred to the control centre as new setting shaft force value, after during real-time monitoring, when jack stretches out
When length changes again, the extension elongation of oil cylinder will be adjusted under new setting shaft force value.
Preferably, when above-mentioned jack pair bracing members carry out axle power off-load, the side of stepping off-load can be adopted
During formula, i.e. jack first time off-load, the axle power value (for example reducing 5 tons every time) that off-load is fixed is adjusted after the completion of first time off-load
It is whole to shorten the extension elongation of jack, if be still unable to reach making extension elongation be equal to basis displacement, then subtracted for the second time
Carry, adjust the extension elongation of jack after the completion of second off-load again, if be still unable to reach making extension elongation be equal to benchmark position
Move, then carry out third time off-load and adjustment, so through stepping off-load and adjustment for several times, until the extension elongation of the jack
Foreshorten to equal to the basis displacement, now then complete regulation and control.
The third situation is：When the jack extension elongation is less than the basis displacement, the jack is in setting
Its extension elongation is adjusted under axle power value, it is now directly complete when the extension elongation can be made to extend to equal to the basis displacement
Into regulation and control step, it is ensured that the axle power of bracing members and displacement are in setting range.
4th kind of situation be：When the extension elongation of the jack is less than the basis displacement, but the jack is setting
Cannot adjust under dead axle force value its extension elongation make the extension elongation be equal to the basis displacement when, show axle power value now
It is less than normal, at this time, it may be necessary to the jack pair bracing members carry out axle power loading, and its extension elongation is adjusted, make the jack
Extension elongation is equal to the basis displacement, completes regulation and control.Meanwhile, the pressure sensor is by now jack after off-load
Axle power value is transferred to the control centre as new setting shaft force value, after during real-time monitoring, when jack is stretched
When going out length and changing again, the extension elongation of oil cylinder will be adjusted under new setting shaft force value.
It is similar with above-mentioned stepping off-load, as preferred, when the jack pair bracing members carry out axle power and load, equally
By the way of can be to be loaded using stepping, jack loads every time fixed axle power value, and adjusts its extension elongation, walks through for several times
Enter loading and adjust, until the extension elongation of the jack is foreshortened to equal to the basis displacement, now then complete regulation and control.
5th kind of situation be：When the extension elongation of the jack is less than the basis displacement, but the jack is setting
When cannot adjust extension elongation under dead axle force value and reaching equal to the basis displacement, show that axle power value now is less than normal, this
When, need bracing members described in jack pair to carry out axle power loading, the jack is by way of stepping loading to the steel
Support carries out axle power loading, but when the axle power value of jack loading is equal to the maximum internal stress of itself unstability of the bracing members
When, now, the extension elongation that still cannot make the jack is equal to the basis displacement, now, should stop axle power loading,
Prevent bracing members itself unstability.Regulation and control afterwards should switch to based on axle power regulation and control, and now, the pressure sensor will be very heavy
The axle power value of top loading is transferred to the control centre as axle power higher limit, using the mesh that this axle power higher limit regulates and controls as axle power
Scale value.The jack carries out axle power loading by way of stepping loading to bracing members, when the axle power of jack loading
Value equal to bracing members itself unstability maximum internal stress when, the jack stops axle power loading, the pressure sensor by this
When jack axle power value be transferred to the control centre as axle power higher limit, regulated and controled as axle power using this axle power higher limit
Desired value.
Further, in above-mentioned 5th kind of situation, the control method also includes：
S6：The axle power value of jack loading described in the pressure sensor real-time monitoring, and real-time axle power value is transferred to
The control centre；
S7：The control centre compares the real-time axle power value and the axle power higher limit；
S8：When the real-time axle power value is unequal with the axle power higher limit, the control centre controls the power
Output device exports power to the jack, and the jack adjusts the axle power value of its loading, makes described real-time axle power value etc.
In the axle power higher limit.The regulation and control step of the S6-S8 is the regulation and control method based on axle power regulation and control.
The dynamic regulation system of the two-way steel support structure that the present invention is provided, on the one hand using Flexible Node, makes level
Support is not directly contacted with vertical support, and when axle power is loaded to horizontal support, the compression that horizontal support is produced will not be direct
Act on the vertical support being connected with internal box so that the lateral displacement of vertical support is greatly reduced, and is thus effectively reduced
The additional bending moment produced to vertical support when horizontal support axle power is loaded, improves the stress shape of whole two-way steel support structure
Condition；On the other hand, axle power loading tool is controlled by control centre, is capable of achieving real-time monitoring to bracing members axle power, prevent because
External environment change causes the stress of the two-way steel support structure for having loaded to change.The regulation and control method that the present invention is provided can be with
The real-time monitoring to two-way steel axial force of the supports and displacement is realized under various different operating modes, is base pit engineering temporary steel support supporting
System provides safer guarantee.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this
Any change, modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Scope.
Claims (30)
1. a kind of dynamic regulation system of two-way steel support structure, it is characterised in that including two-way steel support structure, axle power loading
Instrument and control centre；
The two-way steel support structure includes mutually perpendicular horizontal support and vertical support and is arranged at the horizontal support
With the Flexible Node of the vertical support junction；
The Flexible Node includes outer case, internal box, the first coupling assembly and the second coupling assembly, and the outer case is hollow
Structure, its surface offers coaxial the first hole and the second hole, and the internal box is arranged inside the outer case；
First coupling assembly and second coupling assembly are each passed through first hole and second hole and institute
State internal box connection；
Arrange between the inwall of the outer wall of the internal box and the outer case and have elastic component；
The horizontal support is connected with the outer case, the vertical support respectively with first coupling assembly and described second
Coupling assembly connects；
The axle power loading tool carries out axle power loading to the horizontal support or the vertical support；
The control centre controls the working condition of the axle power loading tool.
2. a kind of dynamic regulation system of two-way steel support structure according to claim 1, it is characterised in that the outer container
Body and internal box are cube；
Four faces of the outer case and horizontal plane be respectively the first face for being parallel to each other and the second face, be parallel to each other the
Three faces and fourth face, offer respectively coaxial the first hole and the second hole on first face and the second face.
3. a kind of dynamic regulation system of two-way steel support structure according to claim 2, it is characterised in that the interior case
Body is fixed with two faces of plane-parallel with sliding part, and the sliding part is contacted with the inwall of the outer case.
4. a kind of dynamic regulation system of two-way steel support structure according to claim 2, it is characterised in that the flexibility
Node also includes the 3rd coupling assembly and the 4th coupling assembly,
First coupling assembly runs through first hole, and its one end be connected with the internal box, the other end for it is described
Vertical support connects；
Second coupling assembly runs through second hole, and its one end be connected with the internal box, the other end for it is described
Vertical support connects；
Described 3rd coupling assembly one end is connected with the 3rd face of the outer case, and the other end is used to connect with the horizontal support
Connect；
Described 4th coupling assembly one end is connected with the fourth face of the outer case, and the other end is used to connect with the horizontal support
Connect.
5. a kind of Flexible Node of two-way steel support structure according to claim 4, it is characterised in that first connection
Component and second coupling assembly are welded or are integrally formed with the internal box；
3rd component and the 4th coupling assembly are welded or are integrally formed with the outer case.
6. the dynamic regulation system of a kind of two-way steel support structure according to claim 4, it is characterised in that described first
Coupling assembly includes head rod and first flange, and the second coupling assembly includes the second connecting rod and second flange, and the 3rd connects
Connected components include the 3rd connecting rod and the 3rd flange, and the 4th coupling assembly includes the 4th connecting rod and the 4th flange,
The head rod runs through first hole, and its one end is connected with the internal box, the other end and first method
Orchid connection, the first flange is used to be connected with the vertical support；
Second connecting rod runs through second hole, and its one end is connected with the internal box, the other end and second method
Orchid connection, the second flange is used to be connected with the vertical support；
Described 3rd connecting rod one end is connected with the 3rd face of the outer case, and the other end is connected with the 3rd flange, described
3rd flange is used to be connected with the horizontal support；
Described 4th connecting rod one end is connected with the fourth face of the outer case, and the other end is connected with the 4th flange, described
4th flange is used to be connected with the horizontal support.
7. the dynamic regulation system of a kind of two-way steel support structure according to any one of claim 1-6, it is characterised in that
The flexible member is disk spring.
8. the dynamic regulation system of a kind of two-way steel support structure according to claim 1-6, it is characterised in that the axle
Power loading tool is jack, and the jack is provided with pressure sensor and displacement transducer,
The pressure sensor is used to determine the axle power of the jack loading, and institute's displacement sensors are used to determine described very heavy
The length that top is stretched out；
The control centre receives the data that the pressure sensor and institute's displacement sensors are determined.
9. a kind of method that dynamic regulation is carried out to two-way steel support structure using regulator control system as claimed in claim 8, its
It is characterised by, comprises the steps：
S1：Bracing members in the two-way steel support structure are grouped, the control centre is to the bracing members in same group
Corresponding jack synchronizes regulation and control, and control the jack pair according to setting shaft force value is carried out simultaneously with the bracing members in group
Axle power is loaded, and when loading is completed, institute's displacement sensors are passed the extension elongation of the jack for measuring as basis displacement
It is defeated by the control centre；
S3：Institute's displacement sensors are monitored the real-time extension elongation of the jack and are transferred to the control centre；
S4：The control centre compares the real-time extension elongation of the jack and the basis displacement；
S5：When the real-time extension elongation is unequal with the basis displacement, the control centre is controlled with all in group
The working condition of the jack, the real-time extension elongation for making all jack is equal to the basis displacement.
10. a kind of method that dynamic regulation is carried out to two-way steel support structure according to claim 9, it is characterised in that
The jack is hydraulic jack, in the S1, the corresponding jack of all bracing members in same group is accessed into same pump
Stand, the control centre is driven by the pumping plant and worked simultaneously with all described jack in group, is completed in same group
The axle power loading of the bracing members.
A kind of 11. methods that dynamic regulation is carried out to two-way steel support structure according to claim 10, it is characterised in that
The control centre is computer automatic control system, and the computer automatic control system controls pumping plant and drives institute by PLC
State jack.
A kind of 12. methods that dynamic regulation is carried out to two-way steel support structure according to claim 9, it is characterised in that
The S1 is specifically included：Bracing members in two-way steel support structure are grouped, the bracing members of identical axle power are divided into one group, institute
State control centre and regulation and control are synchronized to the corresponding jack of bracing members in same group.
A kind of 13. methods that dynamic regulation is carried out to two-way steel support structure according to claim 9, it is characterised in that
The S1 is specifically included：Bracing members in two-way steel support structure are grouped, by all Horizontal steelwork bracings and all institutes
State vertical bracing members and be divided into same group, the control centre synchronizes regulation and control to the corresponding jack of all bracing members.
A kind of 14. methods that dynamic regulation is carried out to two-way steel support structure according to claim 9, it is characterised in that
The S1 is specifically included：All Horizontal steelwork bracings are divided into same group, all vertical bracing members are divided into another group, first
Simultaneously prestressing force loading is carried out to all Horizontal steelwork bracings, then again to vertical bracing members while carrying out prestressing force loading.
A kind of 15. methods that dynamic regulation is carried out to two-way steel support structure according to claim 14, it is characterised in that
The S1 is specifically included：
S1.1：The Horizontal steelwork bracing and the vertical bracing members are installed, then install carries out axle power to the Horizontal steelwork bracing
The jack of loading, but the jack that the vertical bracing members are carried out with axle power loading is not installed；
S1.2：The control centre synchronizes regulation and control to the corresponding jack of all Horizontal steelwork bracings, to all described
Horizontal steelwork bracing carries out axle power loading simultaneously；
S1.3：Installation carries out the jack of axle power loading to the vertical bracing members；
S1.4：The control centre synchronizes regulation and control to the corresponding jack of all vertical bracing members, to all described
Vertical bracing members carry out axle power loading simultaneously.
A kind of 16. methods that dynamic regulation is carried out to two-way steel support structure according to claim 15, it is characterised in that
The S1.2 is specifically included：The corresponding jack of all Horizontal steelwork bracings is accessed in the first pumping plant, using control centre
The all jack in first group are synchronously driven by first pumping plant, prestressing force loading is carried out to the Horizontal steelwork bracing；
The S1.4 is specifically included：The corresponding jack of all vertical bracing members is accessed in the second pumping plant, using control centre
The all jack in second group are synchronously driven by second pumping plant, prestressing force loading is carried out to the vertical bracing members.
A kind of 17. methods that dynamic regulation is carried out to two-way steel support structure according to claim 9, it is characterised in that
The S1 is specifically included：When bracing members are carried out with axle power loading, simultaneously axle power is carried out to bracing members from the two ends of bracing members and added
Carry.
A kind of 18. methods that dynamic regulation is carried out to two-way steel support structure according to claim 17, it is characterised in that
The S1 is specifically included：One jack is respectively set at the two ends of bracing members, the control centre controls two jack
Simultaneously axle power loading is carried out to bracing members.
A kind of 19. methods that dynamic regulation is carried out to two-way steel support structure according to claim 9, it is characterised in that
The S1 is specifically included：One jack is set in the middle part of bracing members, using the jack axle power loading is carried out.
A kind of 20. methods that dynamic regulation is carried out to two-way steel support structure according to claim 9, it is characterised in that
The S5 is specifically included：When the extension elongation of the corresponding jack of any one bracing members is unequal with the basis displacement,
Control centre control is adjusted with the corresponding jack of all bracing members in group, makes all jack in same group
Extension elongation is equal to the basis displacement.
A kind of 21. methods that dynamic regulation is carried out to two-way steel support structure according to claim 9, it is characterised in that
The dynamic regulation system also includes PTO, and the PTO is connected with the jack, to described thousand
Jin top provides power；The control centre is connected with the PTO, and the power for controlling the PTO is defeated
Go out.
A kind of 22. methods that dynamic regulation is carried out to two-way steel support structure according to claim 21, it is characterised in that
The PTO be electrohydraulic dynamic device, the electrohydraulic dynamic device include proportional pressure control valve, the control centre with
The proportional pressure control valve connection, controls the work of the proportional pressure control valve, and the S1 includes：The control centre controls the ratio
Example overflow valve so as to adjust to setting pressure, the PTO exports power to the jack.
A kind of 23. methods that dynamic regulation is carried out to two-way steel support structure according to claim 21, it is characterised in that
The S1 is specifically included：
Bracing members in the two-way steel support structure are grouped, the control centre controls the PTO,
Its power output is adjusted, the PTO is to all described jack output power in group；
Axle power loading is carried out to the bracing members in same group according to setting shaft force value with all described jack in group, loading is completed
When, the extension elongation of the jack for measuring is transferred to the control centre by institute's displacement sensors as basis displacement.
A kind of 24. methods that dynamic regulation is carried out to two-way steel support structure according to claim 23, it is characterised in that
The S5 is specifically included：When the jack extension elongation is more than the basis displacement,
The control centre controls the PTO and exports power to the jack, and the jack is in setting axle power
Its extension elongation is adjusted under value, the extension elongation is foreshortened to equal to the basis displacement.
A kind of 25. methods that dynamic regulation is carried out to two-way steel support structure according to claim 23, it is characterised in that
In the S5, when the extension elongation of the jack is more than the basis displacement, the jack cannot under setting shaft force value
Shorten its extension elongation make the extension elongation be equal to the basis displacement when,
The jack pair bracing members carry out axle power off-load, and adjust its extension elongation, make extension elongation of the jack etc.
In the basis displacement, axle power value of the pressure sensor using now jack after off-load is used as new setting shaft force value
It is transferred to the control centre.
A kind of 26. methods that dynamic regulation is carried out to two-way steel support structure according to claim 25, it is characterised in that
In the S5, when the jack pair bracing members carry out axle power off-load, by the way of stepping off-load, each off-load of jack
Fixed axle power value, and adjust shortening its extension elongation, through stepping off-load and adjustment for several times, until the jack stretches out
Contraction in length is to equal to the basis displacement.
A kind of 27. methods that dynamic regulation is carried out to two-way steel support structure according to claim 23, it is characterised in that
The S5 is specifically included：When the jack extension elongation is less than the basis displacement,
The control centre controls the PTO and exports power to the jack, and the jack is in setting axle power
Its extension elongation is adjusted under value, the extension elongation is foreshortened to equal to the basis displacement.
A kind of 28. methods that dynamic regulation is carried out to two-way steel support structure according to claim 23, it is characterised in that
In the S5, when the extension elongation of the jack is less than the basis displacement, the jack cannot under setting shaft force value
Adjust its extension elongation make the extension elongation be equal to the basis displacement when,
The jack pair bracing members carry out axle power loading, and adjust its extension elongation, make extension elongation of the jack etc.
In the basis displacement, axle power value of the pressure sensor using now jack after off-load is used as new setting shaft force value
It is transferred to the control centre.
A kind of 29. methods that dynamic regulation is carried out to two-way steel support structure according to claim 28, it is characterised in that
In the S5, when the jack pair bracing members carry out axle power loading, by the way of stepping loading, jack is loaded every time
Fixed axle power value, and its extension elongation is adjusted, load and adjust through stepping for several times, until the extension elongation of the jack
Foreshorten to equal to the basis displacement.
A kind of 30. methods that dynamic regulation is carried out to two-way steel support structure according to claim 29, it is characterised in that
The jack carries out axle power loading by way of stepping loading to bracing members, when the axle power value of jack loading is equal to
During the maximum internal stress of bracing members itself unstability, the jack stops axle power loading, and the pressure sensor will be now very heavy
The axle power value on top is transferred to the control centre as axle power higher limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993253.2A CN106638614B (en) | 2016-11-11 | 2016-11-11 | A kind of the dynamic regulation system and dynamic regulation method of two-way steel support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993253.2A CN106638614B (en) | 2016-11-11 | 2016-11-11 | A kind of the dynamic regulation system and dynamic regulation method of two-way steel support structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106638614A true CN106638614A (en) | 2017-05-10 |
| CN106638614B CN106638614B (en) | 2019-01-18 |
Family
ID=58805577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610993253.2A Active CN106638614B (en) | 2016-11-11 | 2016-11-11 | A kind of the dynamic regulation system and dynamic regulation method of two-way steel support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106638614B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142951A (en) * | 2017-06-12 | 2017-09-08 | 上海市机械施工集团有限公司 | Bracing members cruciform joint |
| CN108343070A (en) * | 2018-03-12 | 2018-07-31 | 上海建工建集团有限公司 | A kind of Bidirectional supporting system deformation monitoring compensation device and construction method |
| CN114059550A (en) * | 2021-11-24 | 2022-02-18 | 上海建工集团股份有限公司 | Axial force checking and regulating system and method for foundation pit servo steel support system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260463A (en) * | 1995-03-24 | 1996-10-08 | Toda Constr Co Ltd | Strut system and method of strut type sheathing construction |
| CN101294389A (en) * | 2008-02-22 | 2008-10-29 | 中建国际建设有限公司 | Steel shotcrete support internal force self-compensation, displacement control system and control method |
| CN103290851A (en) * | 2013-06-28 | 2013-09-11 | 上海强劲地基工程股份有限公司 | Prestressed steel support used for controlling internal and external differential displacement of foundation pit enclosure wall and construction method |
| CN204959771U (en) * | 2015-09-25 | 2016-01-13 | 江苏东合南岩土科技股份有限公司 | Prestressing force H shaped steel bearing structure |
| CN105569053A (en) * | 2016-01-13 | 2016-05-11 | 中国建筑第八工程局有限公司 | Axial force compensation system of large deep foundation pit steel supporting system |
| CN206570817U (en) * | 2016-11-11 | 2017-10-20 | 上海市机械施工集团有限公司 | A kind of dynamic regulation system of two-way steel support structure |
-
2016
- 2016-11-11 CN CN201610993253.2A patent/CN106638614B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08260463A (en) * | 1995-03-24 | 1996-10-08 | Toda Constr Co Ltd | Strut system and method of strut type sheathing construction |
| CN101294389A (en) * | 2008-02-22 | 2008-10-29 | 中建国际建设有限公司 | Steel shotcrete support internal force self-compensation, displacement control system and control method |
| CN103290851A (en) * | 2013-06-28 | 2013-09-11 | 上海强劲地基工程股份有限公司 | Prestressed steel support used for controlling internal and external differential displacement of foundation pit enclosure wall and construction method |
| CN204959771U (en) * | 2015-09-25 | 2016-01-13 | 江苏东合南岩土科技股份有限公司 | Prestressing force H shaped steel bearing structure |
| CN105569053A (en) * | 2016-01-13 | 2016-05-11 | 中国建筑第八工程局有限公司 | Axial force compensation system of large deep foundation pit steel supporting system |
| CN206570817U (en) * | 2016-11-11 | 2017-10-20 | 上海市机械施工集团有限公司 | A kind of dynamic regulation system of two-way steel support structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142951A (en) * | 2017-06-12 | 2017-09-08 | 上海市机械施工集团有限公司 | Bracing members cruciform joint |
| CN108343070A (en) * | 2018-03-12 | 2018-07-31 | 上海建工建集团有限公司 | A kind of Bidirectional supporting system deformation monitoring compensation device and construction method |
| CN114059550A (en) * | 2021-11-24 | 2022-02-18 | 上海建工集团股份有限公司 | Axial force checking and regulating system and method for foundation pit servo steel support system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106638614B (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9909966B2 (en) | Shear test device and test method of rock mass discontinuities under constant normal stiffness condition | |
| CN106638614A (en) | Dynamic regulation and control system and method for bidirectional steel supporting structure | |
| CN109556965B (en) | Shield segment mechanical property simulation test device | |
| CN107620313B (en) | Static pressure open caisson device | |
| Park et al. | A comparison study of conventional construction methods and outrigger damper system for the compensation of differential column shortening in high-rise buildings | |
| CN107084223B (en) | Variable-rigidity hydraulic three-dimensional shock isolation device and method | |
| CN206570817U (en) | A kind of dynamic regulation system of two-way steel support structure | |
| CN105203398A (en) | Experiment loading device and method considering stress amplitude of web member joint and applied to truss arch bridge | |
| CN216551972U (en) | Easy folding steel shotcrete of adjustable axial force | |
| CN108385695A (en) | Foundation pit supporting construction and its construction method | |
| CN108729451A (en) | The combined support system and its construction method of foundation pit | |
| CN105618812A (en) | Drilling device and method in narrow space | |
| CN108060718A (en) | A kind of detachable assembling type column and basic ductility joint connection mode | |
| CN108627359B (en) | A kind of Excavation Process simulator | |
| CN102704412A (en) | Construction process for lifting broken pillars of bridge | |
| WO2022062673A1 (en) | Supergravity vertical vibration table | |
| CN106284367A (en) | A kind of foundation pit supporting construction using scalable prestress steel to support | |
| CN211257003U (en) | Fabricated annular steel structure inner support structure system for deep foundation pit support | |
| CN206545176U (en) | Bridge pad synchronous jacking device | |
| CN105155418A (en) | Construction method for bridge horizontal movement | |
| CN114059550B (en) | Shaft force checking and regulating system and method for foundation pit servo steel support system | |
| CN110439289A (en) | Large span converts the external tensioning of steel truss and preloads construction method | |
| CN116607809A (en) | Automatic underpinning and resetting device for pier assembly and construction method thereof | |
| CN106351236B (en) | The Flexible Node and two-way steel support structure of a kind of two-way steel support structure | |
| CN114136267A (en) | Measurement and control integrated soil deformation dynamic control system based on composite capsule |
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 |