CN106351113B - A kind of high-speed railway bridge seismic Damage control system - Google Patents
A kind of high-speed railway bridge seismic Damage control system Download PDFInfo
- Publication number
- CN106351113B CN106351113B CN201610744270.2A CN201610744270A CN106351113B CN 106351113 B CN106351113 B CN 106351113B CN 201610744270 A CN201610744270 A CN 201610744270A CN 106351113 B CN106351113 B CN 106351113B
- Authority
- CN
- China
- Prior art keywords
- pier
- steel plate
- shell wall
- sma coil
- speed railway
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 210000002435 tendon Anatomy 0.000 claims abstract description 11
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims description 9
- 238000009415 formwork Methods 0.000 claims description 6
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 14
- 238000005336 cracking Methods 0.000 abstract description 10
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000004745 nonwoven fabric Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
本发明公开了一种高速铁路桥梁地震损伤控制体系，包括：由高延性水泥基复合材料(ECC)－钢板组成的预制壳壁，壳壁内浇筑混凝土，组成桥墩，且桥墩中配置竖向无粘结预应力筋。桥墩顶部通过2个活动支座与上部主梁连结，且桥墩顶部与主梁间设置形状记忆合金(SMA)螺旋弹簧。SMA螺旋弹簧分别与钢套筒、方钢棒相连。钢套筒上部嵌入主梁底部，方钢棒下部嵌入桥墩顶部。预制壳壁将成为桥墩内部混凝土施工的模板，提供桥墩的抗剪强度和延性耗能能力；并减少在地震下的开裂破坏；无粘结预应力筋将减少桥墩残余位移。SMA螺旋弹簧将提供列车正常运行下的水平刚度，并提供大震下的耗能和主梁的自复位能力。活动支座将提供竖向刚度和承载力。
The invention discloses a high-speed railway bridge earthquake damage control system, which comprises: a prefabricated shell wall composed of high ductility cement-based composite material (ECC)-steel plate, concrete is poured in the shell wall to form a bridge pier, and vertical non-woven fabrics are arranged in the pier. Bonded prestressed tendons. The top of the pier is connected to the upper main girder through two movable supports, and a shape memory alloy (SMA) coil spring is arranged between the top of the pier and the main girder. SMA coil springs are respectively connected with steel sleeves and square steel rods. The upper part of the steel sleeve is embedded in the bottom of the main girder, and the lower part of the square steel rod is embedded in the top of the pier. The prefabricated shell wall will become the template for the concrete construction inside the pier, providing the pier with shear strength and ductility and energy dissipation capacity; and reducing cracking damage under earthquakes; unbonded prestressed tendons will reduce the residual displacement of the pier. SMA coil springs will provide the horizontal stiffness of the train under normal operation, and provide energy dissipation under large earthquakes and the self-resetting ability of the main girder. Live bearings will provide vertical stiffness and load bearing capacity.
Description
技术领域technical field
本发明涉及土木工程中的桥梁结构体系，特别涉及采用预制壳壁和SMA螺旋弹簧的高速铁路桥梁体系。The invention relates to a bridge structure system in civil engineering, in particular to a high-speed railway bridge system using prefabricated shell walls and SMA coil springs.
背景技术Background technique
目前，我国高速铁路建设快速开展，势必引起人们对此类重大交通工程抗震安全的极大关注。桥墩和主梁是桥梁结构的主要承重构件，桥墩和主梁的抗震安全是高速铁路桥梁抗震安全的保障。At present, the rapid development of my country's high-speed railway construction is bound to arouse people's great attention to the seismic safety of such major transportation projects. Bridge piers and main girders are the main load-bearing components of bridge structures, and the seismic safety of bridge piers and main girders is the guarantee for the seismic safety of high-speed railway bridges.
对此类重大交通工程的抗震问题而言，传统的桥梁延性抗震设计理论已无法满足其抗震要求。主要原因在于：(1)为保证高速铁路的行车要求，桥墩的侧向刚度必须很大，这就造成其截面大，纵筋配筋率低，箍筋难以有效约束核心混凝土，难以形成塑性铰并消耗地震能量；(2)大量高速铁路桥梁跨越江河湖海等恶劣环境，腐蚀性强，耐久性问题突出，对桥墩震后混凝土的开裂破坏必须进行严格限制；(3)为保证高速铁路轨道的平顺和高速列车行车安全，必须对桥墩及主梁的震后残余变形进行严格限制；(4)高速铁路为重大交通工程，一旦震后停止通行，将造成巨大的经济损失和社会影响，因此桥梁损伤破坏的震后检查、修复必须快速完成，这就要求对桥墩混凝土开裂等损伤进行严格控制。For the seismic problems of such major traffic projects, the traditional theory of ductile seismic design of bridges can no longer meet the seismic requirements. The main reasons are: (1) In order to meet the driving requirements of the high-speed railway, the lateral stiffness of the bridge pier must be very large, which results in a large cross-section and a low ratio of longitudinal reinforcement. It is difficult for the stirrups to effectively restrain the core concrete and form a plastic hinge. And consume earthquake energy; (2) A large number of high-speed railway bridges cross rivers, lakes and other harsh environments, with strong corrosion and outstanding durability problems, and the cracking and damage of bridge piers after earthquakes must be strictly limited; (3) In order to ensure the high-speed railway track For the smooth operation of high-speed trains and the safety of high-speed trains, the post-earthquake residual deformation of bridge piers and girders must be strictly limited; (4) High-speed railways are major traffic projects. The post-earthquake inspection and repair of bridge damage and damage must be completed quickly, which requires strict control of damage such as concrete cracking of bridge piers.
发明内容Contents of the invention
本发明针对上述技术问题，提出一种高速铁路桥梁地震损伤控制体系。由ECC-钢板预制壳壁作为桥墩内部混凝土施工的模板，并在桥墩中配置竖向无粘结预应力筋。ECC-钢板预制壳壁将增加桥墩的延性和耗能能力，并抑制震后桥墩的开裂破坏，无粘结预应力筋将减小桥墩的震后残余位移，实现桥墩的地震损伤控制设计。高速铁路桥梁地震损伤控制体系将在桥墩与主梁间设置SMA螺旋弹簧，利用SMA螺旋弹簧的自复位能力限制主梁的震后残余变形。上述技术措施将充分保证高速铁路桥梁的抗震安全，在重大交通工程建设中具有广泛应用前景。Aiming at the above technical problems, the present invention proposes an earthquake damage control system for high-speed railway bridges. The prefabricated shell wall of the ECC-steel plate is used as the formwork for the concrete construction inside the pier, and vertical unbonded prestressed tendons are arranged in the pier. The ECC-steel plate prefabricated shell wall will increase the ductility and energy dissipation capacity of the pier, and inhibit the cracking and damage of the pier after the earthquake. The unbonded prestressed tendon will reduce the residual displacement of the pier after the earthquake, and realize the earthquake damage control design of the pier. The high-speed railway bridge earthquake damage control system will install SMA coil springs between the pier and the main beam, and use the self-resetting ability of the SMA coil spring to limit the residual deformation of the main beam after the earthquake. The above-mentioned technical measures will fully guarantee the seismic safety of high-speed railway bridges, and have broad application prospects in the construction of major traffic projects.
为达到以上目的，通过以下技术方案实现的：In order to achieve the above purpose, it is realized through the following technical solutions:
一种高速铁路桥梁地震损伤控制体系，其特征在于：包括，桥墩基础，由ECC和钢板组成的预制壳壁。预制壳壁内部布置纵筋并浇筑混凝土，沿桥墩竖向设置无粘结预应力筋。桥墩顶部设置2个活动支座与主梁相连。且桥墩顶部与主梁间设置4个SMA螺旋弹簧。An earthquake damage control system for a high-speed railway bridge is characterized in that it includes a pier foundation and a prefabricated shell wall composed of ECC and steel plates. Longitudinal reinforcement is arranged inside the prefabricated shell wall and concrete is poured, and unbonded prestressed reinforcement is vertically arranged along the pier. Two movable supports are set on the top of the pier to connect with the main girder. And 4 SMA coil springs are set between the top of the pier and the main girder.
由ECC和钢板组成的预制壳壁沿墩高分段设置，通过接缝连结。接缝为齿状，便于上下段预制壳壁的咬合。The prefabricated shell walls composed of ECC and steel plates are arranged in sections along the pier height and connected by joints. The joints are toothed, which is convenient for the occlusion of the upper and lower prefabricated shell walls.
无粘结预应力筋沿竖向穿过桥墩，底部锚固于基础中，顶部锚固于桥墩上部。The unbonded prestressed tendons pass through the pier vertically, the bottom is anchored in the foundation, and the top is anchored in the upper part of the pier.
钢板内外两侧焊接栓钉，保证钢板与ECC的协同工作，且钢板内侧的栓钉深入内部的混凝土中，以充分保证预制壳壁与内部钢筋混凝土的协同工作。Studs are welded on the inner and outer sides of the steel plate to ensure the coordinated work of the steel plate and ECC, and the studs on the inner side of the steel plate go deep into the internal concrete to fully ensure the coordinated work of the prefabricated shell wall and the internal reinforced concrete.
SMA螺旋弹簧分别与钢套筒、方钢棒相连。钢套筒上部嵌入主梁底部，方钢棒下部通过预埋钢板和锚固钢筋嵌入桥墩顶部。SMA coil springs are respectively connected with steel sleeves and square steel rods. The upper part of the steel sleeve is embedded in the bottom of the main girder, and the lower part of the square steel rod is embedded in the top of the pier through the embedded steel plate and anchoring steel bar.
ECC是一种由水泥、砂、粉煤灰，外掺PVA纤维制成的高延性水泥基复合材料。ECC-钢板预制壳壁可工厂预制，现场通过接缝相连，并作为内部混凝土浇筑时的模板。ECC is a high ductility cement-based composite material made of cement, sand, fly ash, and PVA fiber. The ECC-steel plate prefabricated shell wall can be prefabricated in the factory, connected by joints on site, and used as a formwork for internal concrete pouring.
上部主梁实际是通过4个SMA螺旋弹簧与下部桥墩相连，SMA螺旋弹簧(11)由镍钛形状记忆合金制作而成，4个SMA螺旋弹簧均在水平方向布置。其中2个沿纵桥向，另2个沿横桥向布置。SMA螺旋弹簧仅承受水平力，竖向不受力。The upper girder is actually connected to the lower pier through 4 SMA coil springs, the SMA coil spring (11) is made of nickel-titanium shape memory alloy, and the 4 SMA coil springs are arranged in the horizontal direction. Two of them are arranged along the longitudinal bridge direction, and the other two are arranged along the transverse bridge direction. The SMA coil spring only bears horizontal force, not vertical force.
采用上述技术方案的本发明：Adopt the present invention of above-mentioned technical scheme:
1.ECC-钢板预制壳壁将极大增加桥墩的抗剪强度和延性抗震能力，提高桥墩大震后的抗倒塌能力。1. The prefabricated shell wall of ECC-steel plate will greatly increase the shear strength and ductility and anti-seismic capacity of the pier, and improve the collapse resistance of the pier after a major earthquake.
2.由于ECC特殊的抗开裂能力，ECC-钢板预制壳壁将抑制桥墩地震后的开裂破坏，提高桥墩耐腐蚀能力和长寿命抗震安全。2. Due to the special anti-cracking ability of ECC, the ECC-steel plate prefabricated shell wall will inhibit the cracking and damage of the pier after the earthquake, improve the corrosion resistance of the pier and the long-life anti-seismic safety.
3.ECC-钢板预制壳壁可工厂预制，且现场作为内部混凝土浇筑时的模板，减少了施工工序，便于加快施工进度。3. The ECC-steel plate prefabricated shell wall can be prefabricated in the factory, and the site can be used as a formwork for internal concrete pouring, which reduces the construction process and facilitates the construction progress.
4.桥墩内部的无粘结预应力筋将较少其震后残余位移，保证高速列车的震后行车安全和高速铁路桥梁的震后可修复性。4. The unbonded prestressed tendons inside the pier will reduce the residual displacement after the earthquake, ensuring the safety of the high-speed train after the earthquake and the repairability of the high-speed railway bridge after the earthquake.
5.主梁与桥墩间的SMA螺旋弹簧将提供列车正常运行所需的刚度，大震后SMA螺旋弹簧可自动复位，大大减轻主梁的震后残余变形，且SMA螺旋弹簧可消耗地震能量。5. The SMA coil spring between the main girder and the pier will provide the stiffness required for the normal operation of the train. After a major earthquake, the SMA coil spring can automatically reset, which greatly reduces the residual deformation of the main girder after the earthquake, and the SMA coil spring can consume earthquake energy.
6.主梁与桥墩间的活动支座仅提供竖向承载力和刚度，水平向刚度和强度由SMA螺旋弹簧提供，并依靠SMA螺旋弹簧实现主梁的震后自动复位和耗能能力。实现了高速铁路桥梁“功能分离”的抗震设计理论。6. The movable support between the main girder and the pier only provides vertical bearing capacity and stiffness, and the horizontal stiffness and strength are provided by SMA coil springs, and rely on SMA coil springs to realize the automatic reset and energy dissipation capacity of the main girder after the earthquake. Realized the seismic design theory of "functional separation" of high-speed railway bridges.
7.在桥墩的受力机理上，由于钢板与桥墩下部承台间预留空隙，且ECC-钢板预制壳壁沿墩高分段，因此ECC-钢板预制壳壁不提供抗弯强度；桥墩抗弯能力主要由预制壳壁内部的钢筋混凝土提供。7. In terms of the force mechanism of the bridge pier, since the gap is reserved between the steel plate and the lower cap of the pier, and the ECC-steel plate prefabricated shell wall is segmented along the pier height, the ECC-steel plate prefabricated shell wall does not provide bending strength; The bending capacity is mainly provided by the reinforced concrete inside the prefabricated shell walls.
与传统高速铁路桥梁相比，本发明具有6个突出优点，其一是ECC-钢板预制壳壁将极大减少桥墩的开裂破坏，提高桥墩的耐腐蚀能力和长寿命抗震安全；其二，ECC-钢板预制壳壁将提高桥墩的抗剪强度和延性耗能能力，提高了桥墩的抗倒塌能力；其三，ECC-钢板预制壳壁可工厂预制，并作为内部混凝土现场施工的模板，可减少施工工序，加快施工进度；其四，无粘结预应力筋将减少桥墩震后的残余变形，保证高速列车的行车安全，并增加了桥墩的震后可修复性；其五，SMA螺旋弹簧的自复位能力将极大减少主梁的震后残余变形，保证高速列车轨道的平顺性；其六，SMA螺旋弹簧与活动支座实现了高速铁路桥梁基于“功能分离”的抗震设计理念。正常情况下，活动支座提供竖向强度和刚度，SMA螺旋弹簧提供水平向强度和刚度。且大震下SMA螺旋弹簧提供耗能能力和自复位能力。Compared with traditional high-speed railway bridges, the present invention has six outstanding advantages. One is that the ECC-steel plate prefabricated shell wall will greatly reduce the cracking and damage of bridge piers, improve the corrosion resistance and long-life seismic safety of bridge piers; second, ECC -The steel plate prefabricated shell wall will improve the shear strength and ductility energy dissipation capacity of the bridge pier, and improve the collapse resistance of the bridge pier; third, the ECC-steel plate prefabricated shell wall can be prefabricated in the factory and used as a template for internal concrete construction on site, which can reduce The construction process speeds up the construction progress; Fourth, the unbonded prestressed tendons will reduce the residual deformation of the bridge pier after the earthquake, ensure the driving safety of the high-speed train, and increase the post-earthquake repairability of the bridge pier; Fifth, the SMA coil spring The self-resetting ability will greatly reduce the residual deformation of the main beam after the earthquake and ensure the smoothness of the high-speed train track; Sixth, the SMA coil spring and movable support realize the seismic design concept of high-speed railway bridges based on "functional separation". Normally, the movable bearing provides vertical strength and stiffness, and the SMA coil spring provides horizontal strength and stiffness. And the SMA coil spring provides energy dissipation capacity and self-resetting capacity under large earthquakes.
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其他目的、特征和优点能够更明显易懂，以下特举较佳实施例，并配合附图，详细说明如下。The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.
附图说明Description of drawings
本发明共5幅附图,其中：The present invention has 5 drawings in total, wherein:
图1为本发明的整体结构示意图。Figure 1 is a schematic diagram of the overall structure of the present invention.
图2为高速铁路桥墩截面示意图。Figure 2 is a schematic cross-sectional view of a high-speed railway bridge pier.
图3为桥墩与主梁连接部位详图。Figure 3 is a detailed view of the connection between the pier and the main girder.
图4为4个水平向布置的SMA螺旋弹簧详图。Figure 4 is a detailed view of four SMA coil springs arranged horizontally.
图中：1、桥墩基础，2、ECC，3、钢板，4、栓钉，5、纵筋，6、混凝土，7、无粘结预应力筋，8、接缝，9、活动支座，10、主梁，11、SMA螺旋弹簧，12、钢套筒，13、方钢棒，14、预埋钢板，15、锚固钢筋。In the figure: 1. Pier foundation, 2. ECC, 3. Steel plate, 4. Stud, 5. Longitudinal reinforcement, 6. Concrete, 7. Unbonded prestressed reinforcement, 8. Joint, 9. Movable support, 10. Main beam, 11. SMA coil spring, 12. Steel sleeve, 13. Square steel bar, 14. Embedded steel plate, 15. Anchor steel bar.
具体实施方式Detailed ways
如图1至图4所示的一种高速铁路桥梁地震损伤控制体系，包括：包括，桥墩基础，由ECC和钢板组成的预制壳壁。预制壳壁内部布置纵筋并浇筑混凝土，沿桥墩竖向设置无粘结预应力筋。桥墩顶部设置2个活动支座与主梁相连。且桥墩顶部与主梁间设置4个SMA螺旋弹簧。An earthquake damage control system for a high-speed railway bridge as shown in Figures 1 to 4 includes: a bridge pier foundation, and a prefabricated shell wall composed of ECC and steel plates. Longitudinal reinforcement is arranged inside the prefabricated shell wall and concrete is poured, and unbonded prestressed reinforcement is vertically arranged along the pier. Two movable supports are set on the top of the pier to connect with the main girder. And 4 SMA coil springs are set between the top of the pier and the main girder.
由ECC和钢板组成的预制壳壁沿墩高分段设置，通过接缝连结。接缝为齿状，便于上下段预制壳壁的咬合。The prefabricated shell walls composed of ECC and steel plates are arranged in sections along the pier height and connected by joints. The joints are toothed, which is convenient for the occlusion of the upper and lower prefabricated shell walls.
无粘结预应力筋沿竖向穿过桥墩，底部锚固于基础中，顶部锚固于桥墩上部。The unbonded prestressed tendons pass through the pier vertically, the bottom is anchored in the foundation, and the top is anchored in the upper part of the pier.
钢板内外两侧焊接栓钉，保证钢板与ECC的协同工作，且钢板内侧的栓钉深入内部的混凝土中，以充分保证预制壳壁与内部钢筋混凝土的协同工作。Studs are welded on the inner and outer sides of the steel plate to ensure the coordinated work of the steel plate and ECC, and the studs on the inner side of the steel plate go deep into the internal concrete to fully ensure the coordinated work of the prefabricated shell wall and the internal reinforced concrete.
SMA螺旋弹簧分别与钢套筒、方钢棒相连。钢套筒上部嵌入主梁底部，方钢棒下部通过预埋钢板和锚固钢筋嵌入桥墩顶部。SMA coil springs are respectively connected with steel sleeves and square steel rods. The upper part of the steel sleeve is embedded in the bottom of the main girder, and the lower part of the square steel rod is embedded in the top of the pier through the embedded steel plate and anchoring steel bar.
ECC是一种由水泥、砂、粉煤灰，外掺PVA纤维制成的高延性水泥基复合材料。ECC-钢板预制壳壁可工厂预制，现场通过接缝相连，并作为内部混凝土浇筑时的模板。ECC is a high ductility cement-based composite material made of cement, sand, fly ash, and PVA fiber. The ECC-steel plate prefabricated shell wall can be prefabricated in the factory, connected by joints on site, and used as a formwork for internal concrete pouring.
上部主梁实际是通过4个SMA螺旋弹簧与下部桥墩相连，SMA螺旋弹簧(11)由镍钛形状记忆合金制作而成，4个SMA螺旋弹簧均在水平方向布置。其中2个沿纵桥向，另2个沿横桥向布置。SMA螺旋弹簧仅承受水平力，竖向不受力。The upper girder is actually connected to the lower pier through 4 SMA coil springs, the SMA coil spring (11) is made of nickel-titanium shape memory alloy, and the 4 SMA coil springs are arranged in the horizontal direction. Two of them are arranged along the longitudinal bridge direction, and the other two are arranged along the transverse bridge direction. The SMA coil spring only bears horizontal force, not vertical force.
采用上述技术方案的本发明：Adopt the present invention of above-mentioned technical scheme:
1.ECC-钢板预制壳壁将极大增加桥墩的抗剪强度和延性抗震能力，提高桥墩大震后的抗倒塌能力。1. The prefabricated shell wall of ECC-steel plate will greatly increase the shear strength and ductility and anti-seismic capacity of the pier, and improve the collapse resistance of the pier after a major earthquake.
2.由于ECC特殊的抗开裂能力，ECC-钢板预制壳壁将抑制桥墩地震后的开裂破坏，提高桥墩耐腐蚀能力和长寿命抗震安全。2. Due to the special anti-cracking ability of ECC, the ECC-steel plate prefabricated shell wall will inhibit the cracking and damage of the pier after the earthquake, improve the corrosion resistance of the pier and the long-life anti-seismic safety.
3.ECC-钢板预制壳壁可工厂预制，且现场作为内部混凝土浇筑时的模板，减少了施工工序，便于加快施工进度。3. The ECC-steel plate prefabricated shell wall can be prefabricated in the factory, and the site can be used as a formwork for internal concrete pouring, which reduces the construction process and facilitates the construction progress.
4.桥墩内部的无粘结预应力筋将较少其震后残余位移，保证高速列车的震后行车安全和高速铁路桥梁的震后可修复性。4. The unbonded prestressed tendons inside the pier will reduce the residual displacement after the earthquake, ensuring the safety of the high-speed train after the earthquake and the repairability of the high-speed railway bridge after the earthquake.
5.主梁与桥墩间的SMA螺旋弹簧将提供列车正常运行所需的刚度，大震后SMA螺旋弹簧可自动复位，大大减轻主梁的震后残余变形，且SMA螺旋弹簧可消耗地震能量。5. The SMA coil spring between the main girder and the pier will provide the stiffness required for the normal operation of the train. After a major earthquake, the SMA coil spring can automatically reset, which greatly reduces the residual deformation of the main girder after the earthquake, and the SMA coil spring can consume earthquake energy.
6.主梁与桥墩间的活动支座仅提供竖向承载力和刚度，水平向刚度和强度由SMA螺旋弹簧提供，并依靠SMA螺旋弹簧实现主梁的震后自动复位和耗能能力。实现了高速铁路桥梁“功能分离”的抗震设计理论。6. The movable support between the main girder and the pier only provides vertical bearing capacity and stiffness, and the horizontal stiffness and strength are provided by SMA coil springs, and rely on SMA coil springs to realize the automatic reset and energy dissipation capacity of the main girder after the earthquake. Realized the seismic design theory of "functional separation" of high-speed railway bridges.
7.在桥墩的受力机理上，由于钢板与桥墩下部承台间预留空隙，且ECC-钢板预制壳壁沿墩高分段，因此ECC-钢板预制壳壁不提供抗弯强度；桥墩抗弯能力主要由预制壳壁内部的钢筋混凝土提供。7. In terms of the force mechanism of the bridge pier, since the gap is reserved between the steel plate and the lower cap of the pier, and the ECC-steel plate prefabricated shell wall is segmented along the pier height, the ECC-steel plate prefabricated shell wall does not provide bending strength; The bending capacity is mainly provided by the reinforced concrete inside the prefabricated shell walls.
与传统高速铁路桥梁相比，本发明具有6个突出优点，其一是ECC-钢板预制壳壁将极大减少桥墩的开裂破坏，提高桥墩的耐腐蚀能力和长寿命抗震安全；其二，ECC-钢板预制壳壁将提高桥墩的抗剪强度和延性耗能能力，提高了桥墩的抗倒塌能力；其三，ECC-钢板预制壳壁可工厂预制，并作为内部混凝土现场施工的模板，可减少施工工序，加快施工进度；其四，无粘结预应力筋将较少桥墩震后的残余变形，保证高速列车的行车安全，并增加了桥墩的震后可修复性；其五，SMA螺旋弹簧的自复位能力将极大减少主梁的震后残余变形，保证高速列车轨道的平顺性；其六，SMA螺旋弹簧与活动支座实现了高速铁路桥梁基于“功能分离”的抗震设计理念。正常情况下，活动支座提供竖向强度和刚度，SMA螺旋弹簧提供水平向强度和刚度。且大震下SMA螺旋弹簧提供耗能能力和自复位能力。Compared with traditional high-speed railway bridges, the present invention has six outstanding advantages. One is that the ECC-steel plate prefabricated shell wall will greatly reduce the cracking and damage of bridge piers, improve the corrosion resistance and long-life seismic safety of bridge piers; second, ECC -The steel plate prefabricated shell wall will improve the shear strength and ductility energy dissipation capacity of the bridge pier, and improve the collapse resistance of the bridge pier; third, the ECC-steel plate prefabricated shell wall can be prefabricated in the factory and used as a template for internal concrete construction on site, which can reduce The construction process speeds up the construction progress; fourth, the unbonded prestressed tendon will reduce the residual deformation of the bridge pier after the earthquake, ensure the driving safety of the high-speed train, and increase the repairability of the bridge pier after the earthquake; fifth, the SMA coil spring The self-resetting ability of the main beam will greatly reduce the residual deformation of the main beam after the earthquake and ensure the smoothness of the high-speed train track; Sixth, the SMA coil spring and the movable support realize the seismic design concept of high-speed railway bridges based on "functional separation". Normally, the movable bearing provides vertical strength and stiffness, and the SMA coil spring provides horizontal strength and stiffness. And the SMA coil spring provides energy dissipation capacity and self-resetting capacity under large earthquakes.
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专业的技术人员在不脱离本发明技术方案范围内，当可利用上诉揭示的技术内容做出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Without departing from the scope of the technical solution of the present invention, the skilled person can use the technical content disclosed in the appeal to make some changes or modify it into an equivalent embodiment with equivalent changes, but any content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744270.2A CN106351113B (en) | 2016-08-28 | 2016-08-28 | A kind of high-speed railway bridge seismic Damage control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610744270.2A CN106351113B (en) | 2016-08-28 | 2016-08-28 | A kind of high-speed railway bridge seismic Damage control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106351113A CN106351113A (en) | 2017-01-25 |
| CN106351113B true CN106351113B (en) | 2018-04-17 |
Family
ID=57855446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610744270.2A Active CN106351113B (en) | 2016-08-28 | 2016-08-28 | A kind of high-speed railway bridge seismic Damage control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106351113B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905091B (en) * | 2017-04-06 | 2019-09-13 | 沈阳建筑大学 | A Segmentally Assembled FRP Reinforced Steel Tube Concrete Pier Using SMA-Prestressed Tendon System |
| CN107288030A (en) * | 2017-08-07 | 2017-10-24 | 重庆交通大学 | The method for making cylindrical concrete pier stud |
| CN107288029A (en) * | 2017-08-07 | 2017-10-24 | 重庆交通大学 | The method for making square column type performance of concrete column confined |
| CN107884268B (en) * | 2017-10-11 | 2019-10-11 | 太原理工大学 | Creep test device for concrete filled steel tubes considering the initial stress of steel tubes |
| CN108103927B (en) * | 2017-12-30 | 2019-06-14 | 北京工业大学 | Fully prefabricated double-layer frame pier structure system with recoverable function after earthquake |
| CN108691266B (en) * | 2018-05-30 | 2023-12-12 | 林同棪国际工程咨询（中国）有限公司 | Multidirectional damping device for bridge pier |
| CN108978446B (en) * | 2018-09-28 | 2024-04-12 | 武汉理工大学 | Self-resetting energy consumption structure suitable for bridge |
| CN110130210B (en) * | 2019-05-31 | 2021-07-27 | 中铁二院工程集团有限责任公司 | A kind of installation method of anti-drop beam energy dissipation device |
| CN110409279B (en) * | 2019-07-03 | 2024-11-12 | 清华大学 | Rigid frame bridge structure and construction method |
| CN110158484A (en) * | 2019-07-03 | 2019-08-23 | 中铁上海工程局集团有限公司 | A kind of high-speed railway packaged type bridges precast assembly structure and construction method |
| CN110485276A (en) * | 2019-08-15 | 2019-11-22 | 齐鲁交通发展集团有限公司 | A kind of combined anti-seismic pier stud and its without templating construction method |
| CN110863425B (en) * | 2019-12-09 | 2021-07-13 | 河南交院工程技术集团有限公司 | Bridge structure |
| CN113818334A (en) * | 2021-09-22 | 2021-12-21 | 湖南大学 | Prefabricated UHPC formwork core-filling concrete pier with framework and construction method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100570231B1 (en) * | 2005-07-09 | 2006-04-11 | 우경건설 주식회사 | Structure cross section expansion method using PS steel and steel plate |
| JP2006138196A (en) * | 2004-11-14 | 2006-06-01 | Tomoyasu Yoko | Pier structure of elevated and earthquake-resistant bridge |
| KR20060075813A (en) * | 2004-12-29 | 2006-07-04 | 주식회사 알티비코리아 | Prefabricated Pier Construction Using Precast Block |
| CN2934342Y (en) * | 2006-06-26 | 2007-08-15 | 刘绍宁 | Spring steel bridge girder |
| CN102304892A (en) * | 2011-07-29 | 2012-01-04 | 清华大学 | External energy-consumption self-resetting bridge pier stud structure system and realization method thereof |
| CN202626822U (en) * | 2012-05-18 | 2012-12-26 | 清华大学 | Concrete filled steel tube pier with self-reset function |
| CN104120648A (en) * | 2014-08-04 | 2014-10-29 | 大连理工大学 | Point-wrapped pier anti-collision device |
| CN104594208A (en) * | 2014-12-18 | 2015-05-06 | 西南科技大学 | Seismic hardening device for bending-shear-torsion RC component |
| CN105297617A (en) * | 2015-11-24 | 2016-02-03 | 北京工业大学 | Double-column type swinging shock-insulation bridge pier structure system |
-
2016
- 2016-08-28 CN CN201610744270.2A patent/CN106351113B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006138196A (en) * | 2004-11-14 | 2006-06-01 | Tomoyasu Yoko | Pier structure of elevated and earthquake-resistant bridge |
| KR20060075813A (en) * | 2004-12-29 | 2006-07-04 | 주식회사 알티비코리아 | Prefabricated Pier Construction Using Precast Block |
| KR100570231B1 (en) * | 2005-07-09 | 2006-04-11 | 우경건설 주식회사 | Structure cross section expansion method using PS steel and steel plate |
| CN2934342Y (en) * | 2006-06-26 | 2007-08-15 | 刘绍宁 | Spring steel bridge girder |
| CN102304892A (en) * | 2011-07-29 | 2012-01-04 | 清华大学 | External energy-consumption self-resetting bridge pier stud structure system and realization method thereof |
| CN202626822U (en) * | 2012-05-18 | 2012-12-26 | 清华大学 | Concrete filled steel tube pier with self-reset function |
| CN104120648A (en) * | 2014-08-04 | 2014-10-29 | 大连理工大学 | Point-wrapped pier anti-collision device |
| CN104594208A (en) * | 2014-12-18 | 2015-05-06 | 西南科技大学 | Seismic hardening device for bending-shear-torsion RC component |
| CN105297617A (en) * | 2015-11-24 | 2016-02-03 | 北京工业大学 | Double-column type swinging shock-insulation bridge pier structure system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106351113A (en) | 2017-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106351113B (en) | A kind of high-speed railway bridge seismic Damage control system | |
| CN105908621B (en) | It is a kind of to damage controllable Self-resetting precast segment steel-pipe assembly concrete pier and the practice | |
| Nie et al. | Technological development and engineering applications of novel steel-concrete composite structures | |
| CN106087702B (en) | It is a kind of based on waving Self-resetting dual deck bridge framed bent pier with perps power consumption angle steel | |
| CN103104039B (en) | Assembled framework beam-column joint adopting cover plate connection and construction method thereof | |
| CN103074941B (en) | A prefabricated recycled concrete node with reinforced truss beam at the end and its method | |
| CN101906754B (en) | A Rigid Connection Method for Steel Beams and Concrete Bridge Piers | |
| CN107190635B (en) | Dumbbell-shaped concrete-filled steel tubular composite pier and its connection structure and method with bearing platform | |
| CN106758786B (en) | A kind of prefabricated assembled concrete-filled double skin steel tube lattice bridge pier | |
| CN108589514A (en) | Load-bearing and earth-quake resistant mechanism separate type precast assembly bridge pier system | |
| CN205329526U (en) | Pier is assembled to precast concrete | |
| CN106869316A (en) | The beam column edge of a wing is the group frame system and construction method of concrete filled steel tube | |
| CN108677690B (en) | Energy-dissipating self-resetting double-layer rectangular hollow concrete filled steel tube concrete swinging pier structure system | |
| CN109440623B (en) | Temporary splicing structure of precast bridge of concrete segment | |
| CN204282199U (en) | Pile-column concrete hollow pile bridge pier structure | |
| CN104452566B (en) | Swing self-resetting bridge bent with ductile replaceable tie beams and its installation method | |
| CN102966050B (en) | Longitudinal connection method for steel-concrete combined beam and existing reinforced concrete T beam | |
| CN102747781A (en) | Fiber reinforce plastic (FRP) combination structure frame where integral type node is adopted and construction method thereof | |
| CN107246085A (en) | Built-in soap-free emulsion polymeization steel plate concealed bracings prestressing force automatic reset concrete shear wall | |
| CN108487046A (en) | A kind of combined dual deck bridge framed bent pier seismic Damage control system | |
| CN108867342A (en) | A kind of antiseismic multicolumn pier system and construction method collapsed of high-durability | |
| CN206538676U (en) | A kind of utilization split column technology exempts from seismic Damage high-speed railway bridge pier | |
| CN207419229U (en) | A kind of Concrete-Filled Square Steel Tube combination pier of double wave folding steel webplate shear wall | |
| CN111455833A (en) | Self-resetting prefabricated assembled pier and construction method thereof | |
| CN104452567B (en) | A swinging double-deck bridge bent frame and its installation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 |