CN105908753A - Internal prestress axial force device connection structure for building foundation pit steel pipe support - Google Patents
Internal prestress axial force device connection structure for building foundation pit steel pipe support Download PDFInfo
- Publication number
- CN105908753A CN105908753A CN201610290000.9A CN201610290000A CN105908753A CN 105908753 A CN105908753 A CN 105908753A CN 201610290000 A CN201610290000 A CN 201610290000A CN 105908753 A CN105908753 A CN 105908753A
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- power device
- axle power
- connecting short
- short section
- foundation pit
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses an internal prestress axial force device connection structure for a building foundation pit steel pipe support and aims at overcoming the defects that the connection position of an existing foundation pit steel support axial force meter is prone to damage, the axial force is weakened, even, the supporting axial force is made to disappear, consequently, a foundation pit is instable or collapses, and when the load of the axial force meter is exceeded, the axial force meter is prone to damage. The internal prestress axial force device connection structure comprises a supporting pipe, a connecting short joint connected to the end portion of the supporting pipe and an axial force device arranged in the connecting short joint. A collapse ring and an adjusting pad are connected between the connecting short joint and the supporting pipe. The collapse ring is of a hollow structure. The inner wall and the outer wall of the collapse ring are each of a corrugated pipe structure. The collapse ring is filled with colored powder and high-pressure release gas with the irritant smell. A supporting plate is arranged in the connecting short joint. One end of the axial force device is connected with the supporting plate, and the other end of the axial force device extends out of the end portion of the connecting short joint. Connecting transverse plates and strengthening rib plates are connected between the end portion, close to the supporting pipe, in the connecting short joint and the supporting plate, and connecting longitudinal plates are connected between the connecting transverse plates.
Description
Technical field
The present invention relates to a kind of foundation ditch steel pipe support device, more specifically, it relates to a kind of building foundation pit steel pipe support built-in prestressing force axle power device attachment structure.
Background technology
At present, building and the foundation ditch of structures, when needing inner support, it is generally selected steel pipe inner supporting, this mode is widely applied in Metro Design with construction.Steel pipe support needs axial force of the supports is carried out Shi Hanzhang in work progress, after Shi Hanzhang, in order to carry out Dynamic Construction, needs to carry out steel pipe support axle power detection.The general detection using axle power device to carry out axle power, traditional connected mode is that axle power device is arranged on the end of active termination, the end plate of segmented head or the depression of flange can be caused when Shi Hanzhang is bigger, thus destroy support, weaken axle power, even make axial force of the supports disappear, cause instability of foundation pit or collapse.
Chinese patent notification number CN201047784Y, disclose a kind of steel support shaft power meter bearing, including by bearing panel, bearing cylinder, axle power meter, round flange, central cross floor, axle power meter supports the axle power meter seat structure of seat composition and by panel, cylinder and the outer steel sleeve of ring seal steel plate composition, central cross floor is welded on bearing inner barrel, axle power meter supports seat and is welded on central cross floor institute location of cut, steel bushing and foundation ditch liner, foundation ditch cell wall composition is fixing to be connected, axle power meter bearing is placed in inside steel bushing, can be bolted with fixing bracing members.This bearing uses assembled to replace welded type, install the fastest, guarantee installation quality, and weatherproof, dynamometric system increases with the contact surface of foundation ditch in the case of instability, it is ensured that the stability of support system, ensure that base pit engineering safety, after construction terminates, steel support shaft power meter bearing can all reclaim, and effectively saves material.But bracing members is low in axle power meter link position intensity, when Shi Hanzhang is bigger, axle power meter link position supports the most destroyed, weaken axle power, even make axial force of the supports disappear, cause instability of foundation pit or collapse, and axle power meter is the most damaged when exceeding axle power meter load.
Summary of the invention
Instant invention overcomes existing axial force of foundation pit steel support meter link position to be more easily damaged, weaken axle power, axial force of the supports is even made to disappear, cause instability of foundation pit or collapse, and the easy impaired deficiency of axle power meter when exceeding axle power meter load, it is provided that a kind of building foundation pit steel pipe support built-in prestressing force axle power device attachment structure, axle power device link position structural strength is good, it is difficult to be destroyed, it is ensured that axial force of the supports, it is to avoid make instability of foundation pit or the generation of phenomenon of collapsing because axle power device link position is destroyed；When moment axial force exceedes axle power device load, axle power device link position has the effect of buffering, moment overload is avoided to damage axle power device, and transship and can be found in time, long term overloading is avoided to occur supporting inefficacy and the phenomenon of axle power device damage, avoid overload can not find in time and instability of foundation pit or phenomenon of collapsing occur, it is ensured that construction safety.
In order to solve above-mentioned technical problem, the present invention is by the following technical solutions: a kind of building foundation pit steel pipe support built-in prestressing force axle power device attachment structure, including a stay tube, it is connected to the connecting short section supporting tube end, the axle power device being arranged in connecting short section, connect between connecting short section and a stay tube and have crumple ring and adjusting pad, crumple ring is hollow structure, crumple ring inner and outer wall is all in bellows-like structure, and the crumple ring high pressure built with color powder with penetrating odor discharges gas；Gripper shoe is installed in connecting short section, axle power device one end is connected with gripper shoe, the axle power device other end stretches out the end of connecting short section, detent mechanism is installed in connecting short section, axle power device is socketed in detent mechanism, near being connected the connection transverse slat and the some pieces of reinforcement gussets being obliquely installed having some pieces of horizontally sets between support tube end and gripper shoe in connecting short section, connecting to connect between transverse slat has some pieces of vertically arranged connection stringer boards.
Adjusting pad is easy to the regulation of bearing length in a stay tube installation process, and axle power device one end is connected with gripper shoe, and the axle power device other end stretches out the end of connecting short section and is supported on enclosure wall, dynamically detects axial force of the supports.Axle power device carries out location by detent mechanism and supports, and improves the stationarity of support.The connection transverse slat being connected between gripper shoe with connecting short section end and reinforcement gusset, serve good supporting role to axle power device, reached the security that foundation ditch supports.Good in axle power device link position structural strength, it is difficult to be destroyed, it is ensured that axial force of the supports, it is to avoid make instability of foundation pit or the generation of phenomenon of collapsing because axle power device link position is destroyed.When moment axial force exceedes axle power device load, the destroyed also crumple energy-absorbing buffering of crumple ring, moment overload is avoided to damage axle power device, and crumple ring is destroyed makes high pressure release gas carry color powder to spray in crumple ring, the high pressure release irritant smell of the band of gas, therefore workman can find overload phenomenon in time by sense of smell and vision, long term overloading is avoided to occur supporting inefficacy and the phenomenon of axle power device damage, avoid overload can not find in time and instability of foundation pit or phenomenon of collapsing occur, it is ensured that construction safety.
As preferably, detent mechanism includes several uniform bearings being connected in connecting short section, it is equipped with screw rod on bearing, screw rod is axially arranged with slide opening, in slide opening, slidably connect slide bar, slide bar outer end is fixedly connected with positioning seat, threaded on screw rod outer wall have adjustable abutting the in position to overlap, and is provided with and abuts spring, abut set and be connected on positioning seat between slide opening bottom surface and slide bar, axle power device is socketed between positioning seat, and positioning seat and axle power device contact surface are in the arcuate structure adaptive with axle power device outer wall.When axle power device is installed, under abutting spring effect, positioning seat clamp shaft power device outer wall firmly, axle power device is played good clamping position effect, rotate after axle power device clamping and positioning and abut set, make abutting set end be connected to tightly on positioning seat, make axle power device clamp completely, improve the stationarity that axle power device is installed.
As preferably, slide bar being connected end with abutting spring and is provided with defining flange, slide opening end connects the stop collar for spacing slide bar.Stop collar serves spacing effect to defining flange, prevents slide bar from slipping away slide opening.
As preferably, positioning seat, with to abut set contact surface be planar structure, abuts set in being inverted T-shaped structure, and the bigger diameter end abutting set abuts with positioning seat.Positioning seat with abut set contact surface be planar structure, abut more steady.The abutting set of T-shaped structure adds contact area, increases the stationarity abutted.
As preferably, crumple ring outer wall being sealed and installed with several relief piston bars, relief piston bar front end is arranged on inside the crumple ring of hollow, and relief piston rod rear end is arranged on outside crumple ring.
Rotate relief piston bar, relief piston bar front end is internal mobile to crumple ring, thus reduce the volume that crumple ring internal gas takies, increase the pressure within crumple ring, add the bearing capacity of crumple ring；On the contrary, rotate backward relief piston bar, relief piston rod rear end is outside mobile to crumple ring, thus increase the volume that crumple ring internal gas takies, reduce the pressure within crumple ring, reduce the bearing capacity of crumple ring.Regulated the bearing capacity of crumple ring by relief piston bar, meet the use requirement of lower the rated load that stay tube is different of varying environment, flexible and convenient to use.
As preferably, relief piston rod rear end connects regulation handle.Regulation handle is convenient rotates relief piston bar.
As preferably, high pressure release gas is liquefied ammonia.Strong impulse smell is had, it is simple to discover in time after ammonia release.And ammonia is dissolved in water, crumple ring can be poured onto ammonia leakage position with water after leaking out ammonia, it is to avoid ammonia pollutes environment.
As preferably, stay tube is connected end with connecting short section and is provided with adpting flange, connecting short section one end is provided with pipe nipple flange, the other end is provided with support auxiliary flange, it is laid with some reinforcements between adpting flange and a stay tube outer wall, it is laid with some reinforcements between pipe nipple flange and connecting short section outer wall, supports and be laid with some reinforcements between auxiliary flange and connecting short section outer wall, be bolted connection between adpting flange and pipe nipple flange.Reinforcement adds bonding strength, uses the connected mode of flange, easy to connect reliably.
As preferably, reinforcement gusset, connection transverse slat, the arranged on left and right sides of connection stringer board all weld together with connecting short section inwall.This connected mode adds the structural strength that axle power device is installed.
As preferably, connecting short section is fastenedly connected with hog frame near supporting pipe end, and hog frame is oppositely arranged with gripper shoe, and connection transverse slat, one end of reinforcement gusset are all connected with on the supporting plate, and the other end is both connected on hog frame.Hog frame arranges and adds the bonding strength connecting transverse slat, strengthening gusset, thus improves the structural strength that axle power device is installed.
Compared with prior art, the invention has the beneficial effects as follows: axle power device link position structural strength is good, is difficult to be destroyed, it is ensured that axial force of the supports, it is to avoid make instability of foundation pit or the generation of phenomenon of collapsing because axle power device link position is destroyed；When moment axial force exceedes axle power device load, axle power device link position has the effect of buffering, moment overload is avoided to damage axle power device, and transship and can be found in time, long term overloading is avoided to occur supporting inefficacy and the phenomenon of axle power device damage, avoid overload can not find in time and instability of foundation pit or phenomenon of collapsing occur, it is ensured that construction safety.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is the structural representation of the crumple ring of the present invention；
Fig. 3 is the structural representation of the detent mechanism of the present invention；
In figure: 1, prop up stay tube, 2, connecting short section, 3, axle power device, 4, crumple ring, 5, adjusting pad, 6, gripper shoe, 7, detent mechanism, 8, connect transverse slat, 9, strengthen gusset, 10, stringer board is connected, 11, bearing, 12, screw rod, 13, slide opening, 14, slide bar, 15, positioning seat, 16, set is abutted, 17, abut spring, 18, defining flange, 19, stop collar, 20, relief piston bar, 21, regulation handle, 22, adpting flange, 23, pipe nipple flange, 24, auxiliary flange is supported, 25, hog frame, 26, enclosure wall.
Detailed description of the invention
Below by specific embodiment, and combine accompanying drawing, technical scheme be further described specifically:
Embodiment: a kind of building foundation pit steel pipe support built-in prestressing force axle power device attachment structure (seeing accompanying drawing 1 to 3), including a stay tube 1, it is connected to the connecting short section 2 supporting tube end, the axle power device 3 being arranged in connecting short section, connect between connecting short section and a stay tube and have crumple ring 4 and adjusting pad 5, crumple ring is hollow structure, crumple ring inner and outer wall is all in bellows-like structure, the crumple ring high pressure built with color powder with penetrating odor discharges gas, and high pressure release gas is liquefied ammonia.Being sealed and installed with several relief piston bars 20 on crumple ring outer wall, relief piston bar front end is arranged on inside the crumple ring of hollow, and relief piston rod rear end is arranged on outside crumple ring.Relief piston rod rear end connects regulation handle 21.Gripper shoe 6 is installed in connecting short section, axle power device one end is connected with gripper shoe, the axle power device other end stretches out the end of connecting short section, detent mechanism 7 is installed in connecting short section, axle power device is socketed in detent mechanism, detent mechanism includes three uniform bearings 11 being connected in connecting short section, screw rod 12 it is equipped with on bearing, slide opening 13 it is axially arranged with on screw rod, slide bar 14 is slidably connected in slide opening, slide bar outer end is fixedly connected with positioning seat 15, threaded on screw rod outer wall have position adjustable abutting set 16, it is provided with between slide opening bottom surface and slide bar and abuts spring 17, abut set to be connected on positioning seat, axle power device is socketed between positioning seat, positioning seat and axle power device contact surface are in the arcuate structure adaptive with axle power device outer wall.Being connected end with abutting spring on slide bar and be provided with defining flange 18, slide opening end connects the stop collar 19 for spacing slide bar.Positioning seat with abut set contact surface be planar structure, abut set in be inverted T-shaped structure, abut set bigger diameter end abut with positioning seat.Near being connected the connection transverse slat 8 and the some pieces of reinforcement gussets 9 being obliquely installed having some pieces of horizontally sets between support tube end and gripper shoe in connecting short section, connecting to connect between transverse slat has some pieces of vertically arranged connection stringer boards 10.Reinforcement gusset, connection transverse slat, the arranged on left and right sides of connection stringer board all weld together with connecting short section inwall.Connecting short section is fastenedly connected with hog frame 25 near supporting pipe end, and hog frame is oppositely arranged with gripper shoe, and connection transverse slat, one end of reinforcement gusset are all connected with on the supporting plate, and the other end is both connected on hog frame.Stay tube is connected end and is provided with adpting flange 22 with connecting short section, connecting short section one end is provided with pipe nipple flange 23, the other end is provided with support auxiliary flange 24, it is laid with some reinforcements between adpting flange and a stay tube outer wall, some reinforcements it are laid with between pipe nipple flange and connecting short section outer wall, support and be laid with some reinforcements between auxiliary flange and connecting short section outer wall, be bolted connection between adpting flange and pipe nipple flange.
Adjusting pad is easy to the regulation of bearing length in a stay tube installation process, and axle power device one end is connected with gripper shoe, and the axle power device other end stretches out the end of connecting short section and is supported on enclosure wall 26, dynamically detects axial force of the supports.Axle power device carries out location by detent mechanism and supports, and improves the stationarity of support.The connection transverse slat being connected between gripper shoe with connecting short section end and reinforcement gusset, serve good supporting role to axle power device, reached the security that foundation ditch supports.Good in axle power device link position structural strength, it is difficult to be destroyed, it is ensured that axial force of the supports, it is to avoid make instability of foundation pit or the generation of phenomenon of collapsing because axle power device link position is destroyed.When moment axial force exceedes axle power device load, the destroyed also crumple energy-absorbing buffering of crumple ring, moment overload is avoided to damage axle power device, and crumple ring is destroyed makes high pressure release gas carry color powder to spray in crumple ring, the high pressure release irritant smell of the band of gas, therefore workman can find overload phenomenon in time by sense of smell and vision, long term overloading is avoided to occur supporting inefficacy and the phenomenon of axle power device damage, avoid overload can not find in time and instability of foundation pit or phenomenon of collapsing occur, it is ensured that construction safety.
Embodiment described above is the one preferably scheme of the present invention, and the present invention not makees any pro forma restriction, also has other variant and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (10)
1. a building foundation pit steel pipe support built-in prestressing force axle power device attachment structure, it is characterized in that, including a stay tube, it is connected to the connecting short section supporting tube end, the axle power device being arranged in connecting short section, connect between connecting short section and a stay tube and have crumple ring and adjusting pad, crumple ring is hollow structure, crumple ring inner and outer wall is all in bellows-like structure, and the crumple ring high pressure built with color powder with penetrating odor discharges gas；Gripper shoe is installed in connecting short section, axle power device one end is connected with gripper shoe, the axle power device other end stretches out the end of connecting short section, detent mechanism is installed in connecting short section, axle power device is socketed in detent mechanism, near being connected the connection transverse slat and the some pieces of reinforcement gussets being obliquely installed having some pieces of horizontally sets between support tube end and gripper shoe in connecting short section, connecting to connect between transverse slat has some pieces of vertically arranged connection stringer boards.
Building foundation pit steel pipe support the most according to claim 1 built-in prestressing force axle power device attachment structure, it is characterized in that, detent mechanism includes several uniform bearings being connected in connecting short section, screw rod it is equipped with on bearing, slide opening it is axially arranged with on screw rod, slide bar is slidably connected in slide opening, slide bar outer end is fixedly connected with positioning seat, threaded on screw rod outer wall have adjustable abutting the in position to overlap, it is provided with between slide opening bottom surface and slide bar and abuts spring, abut set to be connected on positioning seat, axle power device is socketed between positioning seat, positioning seat and axle power device contact surface are in the arcuate structure adaptive with axle power device outer wall.
Building foundation pit steel pipe support the most according to claim 2 built-in prestressing force axle power device attachment structure, is characterized in that, slide bar is connected end with abutting spring and is provided with defining flange, and slide opening end connects the stop collar for spacing slide bar.
Building foundation pit steel pipe support the most according to claim 2 built-in prestressing force axle power device attachment structure, is characterized in that, positioning seat with abut set contact surface be planar structure, abut set in be inverted T-shaped structure, abut set bigger diameter end abut with positioning seat.
Building foundation pit steel pipe support the most according to claim 1 built-in prestressing force axle power device attachment structure, it is characterized in that, being sealed and installed with several relief piston bars on crumple ring outer wall, relief piston bar front end is arranged on inside the crumple ring of hollow, and relief piston rod rear end is arranged on outside crumple ring.
Building foundation pit steel pipe support the most according to claim 5 built-in prestressing force axle power device attachment structure, is characterized in that, relief piston rod rear end connects regulation handle.
7. according to the building foundation pit steel pipe support built-in prestressing force axle power device attachment structure described in claim 1 to 6 any one, it is characterized in that, high pressure release gas is liquefied ammonia.
8. according to the building foundation pit steel pipe support built-in prestressing force axle power device attachment structure described in claim 1 to 6 any one, it is characterized in that, stay tube is connected end with connecting short section and is provided with adpting flange, connecting short section one end is provided with pipe nipple flange, the other end is provided with support auxiliary flange, it is laid with some reinforcements between adpting flange and a stay tube outer wall, some reinforcements it are laid with between pipe nipple flange and connecting short section outer wall, support and be laid with some reinforcements between auxiliary flange and connecting short section outer wall, it is bolted connection between adpting flange and pipe nipple flange.
9. according to the building foundation pit steel pipe support built-in prestressing force axle power device attachment structure described in claim 1 to 6 any one, it is characterized in that, reinforcement gusset, connection transverse slat, the arranged on left and right sides of connection stringer board all weld together with connecting short section inwall.
10. according to the building foundation pit steel pipe support built-in prestressing force axle power device attachment structure described in claim 1 to 6 any one, it is characterized in that, connecting short section is fastenedly connected with hog frame near supporting pipe end, hog frame is oppositely arranged with gripper shoe, connect transverse slat, one end of reinforcement gusset is all connected with on the supporting plate, and the other end is both connected on hog frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290000.9A CN105908753B (en) | 2016-05-03 | 2016-05-03 | Prestressing force axle power device connection structure built in building foundation pit steel pipe support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290000.9A CN105908753B (en) | 2016-05-03 | 2016-05-03 | Prestressing force axle power device connection structure built in building foundation pit steel pipe support |
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| CN105908753A true CN105908753A (en) | 2016-08-31 |
| CN105908753B CN105908753B (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610290000.9A Active CN105908753B (en) | 2016-05-03 | 2016-05-03 | Prestressing force axle power device connection structure built in building foundation pit steel pipe support |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381875A (en) * | 2016-11-22 | 2017-02-08 | 青岛理工大学 | Regulation and control device for applying steel support prestress to deep foundation pit |
| CN107700494A (en) * | 2017-09-20 | 2018-02-16 | 中国十七冶集团有限公司 | A kind of deep foundation pit steel tube inner support prestress application device |
| CN110685281A (en) * | 2019-09-03 | 2020-01-14 | 王富荣 | Built-in prestressing force axle power ware connection structure of building foundation ditch steel pipe brace |
| CN112033587A (en) * | 2020-09-16 | 2020-12-04 | 辽宁工程技术大学 | In-service large-span structure rod piece axial force testing member |
| CN112095624A (en) * | 2020-09-28 | 2020-12-18 | 河南省浸江建筑科技有限公司 | Built-in prestressing force axle power ware connection structure of building foundation ditch steel pipe brace |
| CN113802577A (en) * | 2021-10-15 | 2021-12-17 | 青岛新华友建工集团股份有限公司 | Built-in prestressing force axle power ware connection structure of building foundation ditch steel pipe brace |
| CN115688295A (en) * | 2022-08-26 | 2023-02-03 | 北京宇航系统工程研究所 | Method for calculating axial force of connecting piece of flange connection structure |
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| JP2008031740A (en) * | 2006-07-28 | 2008-02-14 | Raiteku:Kk | Guard fence against collapsed sediment |
| CN201047784Y (en) * | 2007-06-21 | 2008-04-16 | 上海隧道工程股份有限公司 | Steel shotcrete shaft power gauge support saddle |
| CN102102366A (en) * | 2011-01-17 | 2011-06-22 | 中建市政建设有限公司 | Adjustable steel support axial force pre-adding device and using method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381875A (en) * | 2016-11-22 | 2017-02-08 | 青岛理工大学 | Regulation and control device for applying steel support prestress to deep foundation pit |
| CN106381875B (en) * | 2016-11-22 | 2018-04-24 | 青岛理工大学 | Regulation and control device for applying steel support prestress to deep foundation pit |
| CN107700494A (en) * | 2017-09-20 | 2018-02-16 | 中国十七冶集团有限公司 | A kind of deep foundation pit steel tube inner support prestress application device |
| CN110685281A (en) * | 2019-09-03 | 2020-01-14 | 王富荣 | Built-in prestressing force axle power ware connection structure of building foundation ditch steel pipe brace |
| CN110685281B (en) * | 2019-09-03 | 2021-03-23 | 江西省第六建筑工程有限公司 | Built-in prestressing force axle power ware connection structure of building foundation ditch steel pipe brace |
| CN112033587A (en) * | 2020-09-16 | 2020-12-04 | 辽宁工程技术大学 | In-service large-span structure rod piece axial force testing member |
| CN112095624A (en) * | 2020-09-28 | 2020-12-18 | 河南省浸江建筑科技有限公司 | Built-in prestressing force axle power ware connection structure of building foundation ditch steel pipe brace |
| CN113802577A (en) * | 2021-10-15 | 2021-12-17 | 青岛新华友建工集团股份有限公司 | Built-in prestressing force axle power ware connection structure of building foundation ditch steel pipe brace |
| CN115688295A (en) * | 2022-08-26 | 2023-02-03 | 北京宇航系统工程研究所 | Method for calculating axial force of connecting piece of flange connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105908753B (en) | 2018-04-27 |
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Denomination of invention: Connection structure of built-in prestressed axial force device for steel pipe support of building foundation pit Effective date of registration: 20211229 Granted publication date: 20180427 Pledgee: Hangzhou branch of Zhejiang Tailong Commercial Bank Co.,Ltd. Pledgor: Dongtong Geotechnical Science and Technology Inc. Registration number: Y2021330002743 |
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