CN117513155A - A new type of bridge cross-bracing structure with tenon and tenon structure - Google Patents
A new type of bridge cross-bracing structure with tenon and tenon structure Download PDFInfo
- Publication number
- CN117513155A CN117513155A CN202311589626.6A CN202311589626A CN117513155A CN 117513155 A CN117513155 A CN 117513155A CN 202311589626 A CN202311589626 A CN 202311589626A CN 117513155 A CN117513155 A CN 117513155A
- Authority
- CN
- China
- Prior art keywords
- tenon
- cross brace
- climbing
- pad
- climbing cone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a novel bridge cross brace structure with a mortise and tenon structure, which belongs to the technical field of bridge cross brace structures.
Description
Technical Field
The invention belongs to the technical field of bridge cross brace structures, and particularly relates to a novel bridge cross brace structure with a mortise and tenon structure.
Background
Along with the sustainable development of globalization economy, the industrialization and technological level of China are improved. According to the related statistical literature, the construction quantity of the Chinese bridge is in the forefront of the world. With the development of the construction of the bridge towards ultra-large span, the cable-stayed bridge is generated. In the construction process of the cable-stayed bridge, a plurality of horizontal cross braces are often required to be arranged on the transverse inner side of the tower column in order to ensure the safety and the quality of the construction of the tower column of the cable-stayed bridge, and the construction progress of the cable-stayed bridge is indirectly influenced by the installation of the cross braces.
For the installation of the cross braces, the tower column with lower height generally adopts a method of directly installing the cross braces by erecting a bracket on the ground or a lower cross beam, and the method has the defects of complex construction process, high construction cost and great potential safety hazard; the tower column with higher height is generally provided with a bracket structure, the transverse support structure is hoisted to a preset height and then welded with the bracket structure, and the installation is completed by simultaneously jacking the structure through jacks at two ends.
The novel bridge cross brace structure with the mortise and tenon structure aims at solving the problems that the construction operation is difficult, the potential safety hazard is large during the use of the structure and the like of the traditional cross brace structure, and further provides the novel bridge cross brace structure with the mortise and tenon structure, which applies the mortise and tenon structure in an ancient building to a bridge cross brace, so that the safety and the economical efficiency of the bridge cross brace are improved, and the novel bridge cross brace structure has the advantages of good stability, simplicity in construction and the like.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a novel bridge cross brace structure with a mortise and tenon structure, which comprises a cross brace device, a climbing cone device, a tenon device, a cushion block and a pre-tightening device, wherein one end of the climbing cone device is buried on the side wall of a tower column, the tenon device and the cushion block are connected with the other end of the climbing cone device through bolts through welding flanges, the cross brace device and the tenon device are connected through the mortise and tenon structure, the pre-tightening device is arranged between the cross brace device and the cushion block, and the scheme is used for connecting the cross brace device and the tenon device through the mortise and tenon structure, so that the defects of complex installation process, difficult construction operation, large potential safety hazards during the structure use and the like of the traditional bridge cross brace structure are overcome. The invention adopts mortise and tenon structures widely used in ancient buildings, and simplifies the installation flow of the cross brace, improves the stability and bearing capacity of the structure and reduces the potential safety hazards possibly caused by welding and bolting by skillfully combining the tenon seat and the tenon head, thereby better ensuring the safety of the structure and the problem of construction efficiency.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a novel bridge stull structure with mortise and tenon structure, includes stull device, climbs awl device, tenon device, cushion and pretension device, climb the one end of awl device and bury on the lateral wall of column, tenon device and cushion carry out bolted connection in climb the other end of awl device through the welding flange dish, stull device with the tenon device is connected through mortise and tenon structure, pretension device set up in stull device with between the cushion.
As a preferable technical scheme of the invention, the cross brace device comprises a cross brace end head, a left end tenon seat and a right end tenon seat, wherein the left end tenon seat and the right end tenon seat are respectively positioned at two ends of the cross brace end head, the tenon device is respectively provided with a first tenon and a second tenon, and the two tenons are matched with the two tenon seats in a one-to-one correspondence manner and are connected through a mortise and tenon structure;
the climbing cone device comprises a left climbing cone, a right climbing cone and a climbing cone main body, wherein the left climbing cone and the right climbing cone are respectively arranged on two sides of one end of the climbing cone main body, the left climbing cone and the right climbing cone are pre-buried in a construction tower column through determining preset positions, and the other end of the climbing cone main body is in bolt connection with the tenon device and the cushion block through a welding flange;
the tenon device comprises a left tenon, a right tenon and a tenon main body, wherein the left tenon and the right tenon are respectively arranged at two ends of the tenon main body, and the left tenon is in bolt connection with the left tenon seat and the right tenon seat through welding flanges;
the cushion block is used for solving the problem of local bearing, the left end of the cushion block is used for bearing the jacking force of the pre-tightening device, and the right end of the cushion block is connected with the right end climbing cone through a welding flange plate through bolts;
the pre-tightening device comprises a jack and a steel wedge block, the left end of the jack is connected with the end of the cross brace through a welding flange plate in a bolt mode, the other end of the jack is used for pushing the cushion block, and two ends of the steel wedge block are respectively connected with the cross brace device and the cushion block and used for shoveling the cross brace device and the cushion block.
As a preferable technical scheme of the invention, the materials of the transverse support device, the climbing cone device, the tenon device and the cushion block are all steel materials;
the left end tenon seat, the right end tenon seat, the left end tenon and the right end tenon are processed and cut in advance in factories or the ground according to designed mortise and tenon structures, and the maximum dimension error is not more than 1cm;
two climbing cones are symmetrically arranged at the same height in the climbing cone device, and eight climbing cones at the left end are used for connecting the left tenon; twelve right-end climbing cones are arranged in total and are used for connecting the right-end tenons and the cushion blocks;
the cushion block is processed by selecting a high-strength steel plate, so that the cushion block is stressed more uniformly, the cross section of the cushion block is selected to be a circular cross section, and the cross section area of the cushion block is larger than that of the cross section of the cross brace;
the jack with the steel wedge piece all set up in between the stull device with the cushion, the jack is used for jacking structure to settlement power value, the steel voussoir can be with stull device and cushion copy tightly, and for reaching better effect, the jack with the steel wedge piece is at same high reply and is set up two, the jack synchronous jacking, the steel voussoir copy tightly stull device with the cushion.
A construction method of a novel bridge cross brace structure with a mortise and tenon structure comprises the following steps:
s1: welding a flange plate on a required structure in a factory or on the ground in advance, preparing the climbing device, and embedding the climbing device after the tower column is constructed to a set elevation;
s2: after the climbing cone device is pre-buried to a designated position, hoisting the tenon device and the cushion block to the designated position, and fixing the tenon device and the cushion block on the climbing cone device;
s3: after the tenon device and the cushion block are installed, the transverse supporting device is hoisted, and the left end tenon seat and the right end tenon seat are respectively inserted into the transverse supporting end heads;
s4: after the structure is installed, the pre-tightening device is installed between the cross brace device and the cushion block, and the jack lifts the cushion block to tightly copy the cross brace device and the cushion block by using the steel wedge block after the cushion block is lifted to a set value.
As a preferable technical scheme of the invention, in S1, the specific requirements of the embedded climbing cone device are as follows: the embedding of the climbing cone device should be strictly arranged in the tower column according to the Gao Chengmai determined in advance, and the elevation deviation should not be more than 2mm.
As a preferable technical scheme of the invention, in S2, the concrete requirements for processing the tenon device and the cushion block are as follows: in order to make the lifting process smoother, lifting eyes are arranged in advance on the ground or a factory for the tenon device and the cushion block so as to facilitate lifting.
As a preferable technical solution of the present invention, in S3, specific requirements for connecting the cross brace device and the tenon device are as follows: the connection between the transverse support device and the tenon device is tight, and if the intermediate gap is reserved too large, the steel wedge blocks or other devices with the same size are plugged into the intermediate gap for structural shoveling.
The beneficial effects of the invention are as follows:
the invention provides a novel bridge cross brace structure with a mortise and tenon structure, which comprises a cross brace device, a climbing cone device, a tenon device, a cushion block and a pre-tightening device, wherein one end of the climbing cone device is buried on the side wall of a tower column, the tenon device and the cushion block are connected with the other end of the climbing cone device through bolts by welding flanges, the cross brace device and the tenon device are connected through the mortise and tenon structure, and the pre-tightening device is arranged between the cross brace device and the cushion block. The invention adopts mortise and tenon structures widely used in ancient buildings, and simplifies the installation flow of the cross brace, improves the stability and bearing capacity of the structure and reduces the potential safety hazards possibly caused by welding and bolting by skillfully combining the tenon seat and the tenon head, thereby better ensuring the safety of the structure and the problem of construction efficiency.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a plan view of a cross-brace construction in accordance with an example of the present invention;
FIG. 2 is a left end construction view of a cross brace construction in accordance with an embodiment of the present invention;
FIG. 3 is a view showing the construction of the right end portion of the wale structure in the example of the present invention;
description of the main symbols
In the figure: 1. a tower column; 2. a cross brace device; 21. a cross brace end; 22. a left end tenon seat; 23. a right tenon seat; 3. a climbing device; 31. the left end climbs the awl; 32. the right end climbs the awl; 4. tenon device; 41. a left tenon; 42. a right tenon; 5. a cushion block; 6. a pre-tightening device; 61. a jack; 62. steel wedge.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-3, the present embodiment provides a novel bridge cross brace structure with mortise and tenon structure, which comprises a cross brace device 2, a climbing cone device 3, a tenon device 4, a cushion block 5 and a pre-tightening device 6, wherein one end of the climbing cone device 3 is buried on the side wall of a tower column 1, the tenon device 4 and the cushion block 5 are connected with the other end of the climbing cone device 3 through a welding flange through bolts, the cross brace device 2 and the tenon device 4 are connected through mortise and tenon structure, and the pre-tightening device 6 is arranged between the cross brace device 2 and the cushion block 5; the novel bridge cross brace structure with the mortise and tenon structure is mainly characterized by comprising the following steps:
1. the cross brace device 2: the transverse force is used for supporting the bridge, so that the stability of the bridge is maintained;
2. climbing awl device 3: one end is buried on the side wall of the tower column 1 and is used for fixing a transverse strut structure;
3. tenon device 4 and cushion 5: the tenon device 4 is connected with the other end of the climbing cone device 3 through a welding flange plate, and the cushion block 5 plays roles of supporting and buffering;
4. pretensioning device 6: the pre-tightening force adjusting device is arranged between the transverse support device 2 and the cushion block 5 and is used for adjusting and controlling the pre-tightening force of the transverse support structure;
5. mortise and tenon structure: the cross bracing device 2 and the tenon device 4 are connected through mortise and tenon structures, and the mortise and tenon structures have good bearing capacity and rigidity.
The design of the novel bridge cross brace structure aims at improving the stability and bearing capacity of the bridge and simultaneously reducing the weight and cost of the structure. Fastening and dismantlement that can realize the connection through adopting mortise and tenon structure, convenient construction and maintenance. The pretightening force of the transverse support structure can be adjusted according to the actual situation by introducing the pretightening device 6, and the safety and reliability of the structure are improved. The structure has excellent anti-seismic performance and stability, and is suitable for bridge engineering with different spans and load requirements.
This scheme is connected stull device 2 and tenon device 4 through mortise and tenon structure, has replaced current threaded connection, has solved that traditional bridge stull structure exists that the mounting process is loaded down with trivial details, construction operation is difficult, the structure has the drawback such as potential safety hazard is big during the use. The invention adopts mortise and tenon structures widely used in ancient buildings, and simplifies the installation flow of the cross brace, improves the stability and bearing capacity of the structure and reduces the potential safety hazards possibly caused by welding and bolting by skillfully combining the tenon seat and the tenon head, thereby better ensuring the safety of the structure and the problem of construction efficiency.
Further, the cross brace device 2 comprises a cross brace end head 21, a left end tenon seat 22 and a right end tenon seat 23, wherein the left end tenon seat 22 and the right end tenon seat 23 are respectively positioned at two ends of the cross brace end head 21, the tenon device 4 is respectively provided with a first tenon and a second tenon, the two tenons are matched with the two tenon seats in a one-to-one correspondence manner, and the two tenons are connected through a mortise and tenon structure; the cross brace apparatus 2 includes a cross brace end 21, a left end mount 22 and a right end mount 23, which function to connect and support the cross brace structure. The tenon device 4 is provided with a first tenon and a second tenon respectively and is matched with the left tenon seat 22 and the right tenon seat 23. Connect through mortise and tenon structure, ensure the stability and the bearing capacity of stull device 2.
Specifically, left and right end abutments 22 and 23 are located at opposite ends of the cross brace end 21 and are shaped and sized to mate with corresponding abutments. The first tenon is connected with the left tenon seat 22, and the second tenon is connected with the right tenon seat 23, so that a stable mortise-tenon connection is formed. The mortise and tenon structure usually adopts a convex or concave shape, so that the firmness and rigidity of connection are ensured.
The structural design has the advantages of simplicity, reliability, and capability of effectively transmitting transverse force and bearing the load of the bridge. The connecting mode of mortise and tenon structure not only has good rigidity and stability, but also better detachability, and is convenient for construction and maintenance. Through mortise and tenon connection of the cross brace device 2, the overall stability and safety of the bridge structure can be improved.
The climbing cone device 3 comprises a left climbing cone 31, a right climbing cone 32 and a climbing cone main body, wherein the left climbing cone 31 and the right climbing cone 32 are respectively arranged on two sides of one end of the climbing cone main body, the left climbing cone 31 and the right climbing cone 32 are pre-buried in a tower column 1 on the construction tower column 1 by determining preset positions, and the other end of the climbing cone main body is in bolt connection with a tenon device 4 and a cushion block 5 through welding flanges;
through with the left end climb awl 31 and right-hand member climb awl 32 pre-buried in the column 1, realize climbing awl device 3 and column 1's connection under safe and stable condition. The other end of the climbing cone main body is connected with the tenon device 4 and the cushion block 5 through bolts by welding a flange plate. In this way, a tight connection and robustness of the climbing cone device 3 with other components is ensured. The welding flange plate can provide strong connecting force, and the structural stability and the bearing capacity of the device are ensured. The design and installation of the climbing cone device 3 is intended to meet the safety and stability requirements required for construction.
The tenon device 4 comprises a left tenon 41, a right tenon 42 and a tenon main body, wherein the left tenon 41 and the right tenon 42 are respectively arranged at two ends of the tenon main body, and the left tenon 41 is in bolt connection with the left tenon seat 22 and the right tenon 42 is in bolt connection with the right tenon seat 23 through welding flanges; the tenon means 4 is an assembly for connecting and fixing members, which is generally used in the construction and manufacturing fields. By the arrangement of the left-end tenon 41 and the right-end tenon 42, connection and support between the members can be achieved.
In the tenon apparatus 4, the left-end tenon 41 and the right-end tenon 42 are respectively located at both ends of the tenon body. They are generally of a particular shape and design to connect with a corresponding dovetail. By bolting the welded flanges, a stronger coupling force and stability can be provided.
The left tenon 41 is bolted to the left tenon seat 22 by a welded flange, and the right tenon 42 is bolted to the right tenon seat 23 by a welded flange. In this way, a tight connection and stability of the tenon means 4 with the respective tenon seat can be ensured.
The design and installation of the tenon means 4 is intended to provide a strong structural support and connection capability. By means of a rational connection and the use of welded flanges, the tenon means 4 can ensure a reliable connection between the components and bear the corresponding load and mechanical requirements.
The cushion block 5 is used for solving the problem of local bearing, the left end of the cushion block 5 is used for bearing the jacking force of the pre-tightening device 6, the right end of the cushion block 5 and the right end climbing cone 32 are connected through a welding flange through bolts, the cushion block 5 is used for solving the problem of local bearing, in the cushion block 5, the left end is used for bearing the jacking force of the pre-tightening device 6, and the right end climbing cone 32 are connected through bolts through the welding flange.
The pad 5 is a member for increasing a supporting area or balancing uneven load. It is often used to address localized pressure bearing issues to alleviate pressure concentrations in specific areas.
In this case, the left end of the spacer 5 is designed to be able to withstand the pushing force of the pretensioning device 6. The pretensioning device 6 is generally used to provide additional tightening force during assembly and to ensure the stability and reliability of the connection. Therefore, the left end of the pad 5 needs to have sufficient strength and rigidity to withstand the pushing force.
On the other hand, the right end of the pad 5 and the right end climbing cone 32 are bolted by welding flanges. A welding flange is a connecting element by which members are welded and which provides a reliable connection. By the use of a welded flange, a stable connection between the right end of the pad 5 and the right end climbing cone 32 and other components can be ensured.
In general, the design and installation of the spacer blocks 5 is intended to solve the problem of localized compression and provide a stable and reliable connection. The left end of the cushion block 5 is used for bearing the pushing force of the pre-tightening device 6, and the right end climbing cone 32 are connected through bolts by welding flanges, so that the stability and the working effect of the whole connecting system are ensured.
The pre-tightening device 6 comprises a jack 61 and a steel wedge block 62, the left end of the jack 61 is in bolt connection with the transverse support end head 21 through a welding flange, the other end of the jack is used for pushing the cushion block 5, the two ends of the steel wedge block 62 are respectively connected with the transverse support device 2 and the cushion block 5 and used for tightly shoring the transverse support device 2 and the cushion block 5, and the jack 61 is a mechanical device and provides additional tightening force through applying force. In this case, the left end of the jack 61 is bolted to the spreader head 21 by a welded flange. In this way, a stable connection of the jack 61 to the cross brace is ensured.
The jack 61 at the other end is used for pushing the cushion block 5. This means that the jack 61 will apply a jacking force to the pad 5 to solve the problem of localized compression. The design and choice of the spacer 5 should be able to withstand such pushing forces and ensure the stability and reliability of the connection.
In addition, both ends of the steel wedge 62 are connected to the wale device 2 and the head block 5, respectively. The steel wedge 62 is a triangular member which is interposed between the wale device 2 and the head block 5, and applies a force to tighten the gap between them. This design ensures a secure connection between the cross-brace apparatus 2 and the head block 5 and improves the stability of the overall structure.
In general, the design and installation of the pretensioning device 6 is intended to provide additional tightening forces and to solve local bearing problems. The jack 61 is bolted to the cross brace end 21 by a welded flange and is used to push the spacer 5. The steel wedge block 62 is connected with the cross brace device 2 and the cushion block 5 and is used for tightly connecting the cross brace device 2 and the cushion block 5. Such a design ensures stability, reliability and fastening effect of the whole system.
The cross brace device 2, the climbing cone device 3, the tenon device 4 and the cushion block 5 are all made of steel materials;
the left and right tenon bases 22 and 23, and the left and right tenons 41 and 42 should be cut and formed in advance in a factory or on the ground according to the designed mortise and tenon structure, and the maximum dimension error should not exceed 1cm, and when the left and right tenon bases 22 and 23, and the left and right tenons 41 and 42 are processed and cut, the operations should be performed according to the design drawing or specification requirements. First, it is necessary to cut the wood according to design requirements using appropriate tools and equipment such as an electric saw, a planer, a numerical control machine, or the like.
During the cutting process, it is necessary to ensure accurate measurement and marking to ensure the accuracy of the position and size of the cut. For mortise and tenon construction, the shape and size of the mortise and tenon seat and the tenon are very important because they need to be precisely fitted together. Therefore, care should be taken to avoid any dimensional errors during the cutting process. In order to ensure that the dimensional error does not exceed 1cm, the following measures may be taken:
1. accurate dimensional measurements are made using high precision measurement tools such as micrometer, angle gauge, etc.
2. Proper cutting tools and cutters are adopted, so that the flatness and the good perpendicularity of a cutting surface are ensured, and excessive errors are avoided.
3. Appropriate clamps or supports are used in combination to maintain the stability of the wood during cutting.
4. And carrying out necessary trimming and grinding to ensure that the cut parts meet the design requirements and reach the required matching precision.
In summary, when the left tenon seat 22, the right tenon seat 23, the left tenon 41 and the right tenon 42 are machined and cut, the machining and cutting should be performed in a factory or on the ground, and the cutting and forming should be performed according to the designed mortise and tenon structure. The dimension error should not exceed 1cm at maximum, so that the accurate measurement, proper cutting tools and cutters, necessary trimming and grinding measures and the like are needed to be taken, so that the cut parts meet the design requirements and reach the required matching precision.
Two climbing cones are symmetrically arranged at the same height in the climbing cone device 3, and eight climbing cones 31 at the left end are arranged for connecting the rabbet 41 at the left end; twelve right climbing cones 32 are arranged in total and are used for connecting right tenons 42 and cushion blocks 5; according to your description, in the climbing cone device 3, two climbing cones need to be symmetrically disposed at the same height. Specifically, eight left climbing cones 31 are provided for connecting left tenons 41; twelve right-hand climbing cones 32 are provided for connecting right-hand tenons 42 to pads 5. For the climbing cone arrangement on the same height, it is important to ensure symmetry and reasonable distribution. This may increase the stability of the connection and balance the force distribution of the various connection points. In the case of you, the left end climbing cone 31 is provided with eight, and four groups of symmetrical arrangement modes can be adopted to ensure firm connection between the left end tenon 41 and the connecting piece. Twelve right-hand climbing cones 32 are arranged, and six symmetrical arrangements can be adopted to connect right-hand tenons 42 and cushion blocks 5, so as to increase overall stability.
When setting up the climbing awl, need to pay attention to the following points:
1. the number and location of the climbing cones should be determined according to the specific design. The stress condition of the connecting part, the strength of the material, the stability of the connection and the like need to be considered.
2. Ensuring the accurate position of the climbing cone. Specific measuring tools such as rules, protractors, etc. can be used for accurate measurement and marking.
3. Ensuring proper depth of cutting the climbing cone. The depth of the cutting of the climbing cone should be matched with the thickness of the tenon so as to ensure proper fit when the connection is fastened.
4. The size of the climbing cone meets the design requirement. And the size of the climbing cone is determined according to the material and the thickness of the connecting piece, so that the climbing cone and the connecting piece are well matched.
In summary, in the climbing cone device 3, two climbing cones are symmetrically arranged in order to increase the stability and reliability of the connection. The left end climbing cones 31 are provided with eight in total, the right end climbing cones 32 are provided with twelve in total, and the correct number, positions and sizes are required to be paid attention to so as to ensure the firmness of connection and the stability of the whole structure.
The cushion block 5 should be processed by selecting a high-strength steel plate, in order to make the stress of the cushion block 5 more uniform, the cross section should be selected to be a round cross section and the cross section area should be larger than the cross section area of the cross brace, and the cushion block 5 can be ensured to have enough strength and rigidity by selecting the high-strength steel plate to bear the stress condition. The high-strength steel material has higher strength and tensile property, and can provide better support and maintain the stability of the structure.
The use of a spacer 5 of circular cross section ensures a uniform compression under stress. Compared with other cross-sectional shapes, the stress distributed by the circular cross section is more uniform, so that the possibility of local stress concentration is reduced, and the bearing capacity and durability of the cushion block 5 are improved.
In addition, it is also important to ensure that the cross-sectional area of the head block 5 is greater than the cross-sectional area of the cross-braces. This ensures that the spacer 5 has sufficient strength to withstand the forces from the cross braces and distributes the forces, reducing the risk of local stress concentrations. When selecting a high strength steel sheet for processing, the following points should be noted:
1. and proper steel brands and specifications are selected to ensure the strength and rigidity meeting the design requirements.
2. Quality control in the processing process is ensured, and defects or damages are avoided, so that the performance of the cushion block 5 is influenced.
3. In consideration of practical application, surface treatment (such as corrosion protection, coating, etc.) is performed as needed to increase the service life and weather resistance of the pad 5.
Therefore, in order to make the stress of the pad 5 more uniform, it is recommended to select a high-strength steel plate for processing and to use a circular cross section, ensuring a cross-sectional area greater than that of the cross-braces. This increases the strength and stability of the spacer 5 while reducing the risk of local stress concentrations.
The jack 61 and the steel wedge block 62 are both arranged between the cross brace device 2 and the cushion block 5, the jack 61 is used for jacking the structure to a set force value, the steel wedge block 62 can tightly jack the cross brace device 2 and the cushion block 5, and for achieving a better effect, the jack 61 and the steel wedge block 62 are correspondingly arranged at the same height, the jack 61 is synchronously jacked, the steel wedge block 62 tightly jack the cross brace device 2 and the cushion block 5, and the two jacks 61 and the two steel wedge blocks 62 are placed at the same height and are ensured to be symmetrically placed between the cross brace device 2 and the cushion block 5, so that balanced jacking and fastening of the whole structure can be realized. This ensures that the cross-brace apparatus 2 and the head block 5 are subjected to equal forces in all directions and reduces the risk of local stress concentrations. When using jack 61 and steel wedge 62, the following should be noted:
1. ensuring that the quality and performance of the jack 61 and the steel wedge 62 meet design requirements and are capable of withstanding the expected force values and pressures.
2. During installation and use, the tight contact between the jack 61 and the steel wedge 62 and the cross-bracing device 2 and the cushion block 5 is ensured, and the loosening or dislocation is avoided.
3. In the jacking and fastening operations, it is necessary to perform a synchronous operation to ensure that the jack 61 and the steel wedge 62 are engaged with each other, so as to avoid uneven force application or uneven fastening force.
In short, by symmetrically arranging two jacks 61 and steel wedge blocks 62 between the cross brace device 2 and the cushion block 5 and performing synchronous operation, the whole structure can be ensured to be lifted and fastened uniformly, the installation and use effects are improved, and the risk of local stress concentration is reduced.
A construction method of a novel bridge cross brace structure with a mortise and tenon structure comprises the following steps:
s1: welding a flange plate on a required structure in a factory or on the ground in advance, preparing a climbing device 3, and embedding the climbing device 3 after the tower column 1 is constructed to a set elevation; the function of this step is to structurally weld the flange and to prepare the climbing cone device 3. By welding the flange plate to the required structure in the factory or on the ground in advance, the site construction time can be saved, and the fixed quality of the flange plate can be ensured. The embedded climbing cone device 3 is used for conveniently inserting and installing the tenon device 4 in the process of installing the transverse support structure after the tower column 1 is constructed to a set elevation.
S2: after the climbing cone device 3 is pre-buried to a designated position, hoisting the tenon device 4 and the cushion block 5 to the designated position, and fixing the tenon device and the cushion block on the climbing cone device 3; the function of this step is to mount the tenon device 4 and the cushion block 5 to the corresponding positions by hoisting on the designated positions of the pre-buried climbing cone device 3, and fix them on the climbing cone device 3. The tenon device 4 and the cushion block 5 are installed to provide support and fixing points for the subsequent installation of the transverse supporting device 2, so that the stability and the safety of the whole structure are ensured.
S3: after the tenon device 4 and the cushion block 5 are installed, the transverse supporting device 2 is hoisted, and the left end tenon seat 22 and the right end tenon seat 23 are respectively inserted into the transverse supporting end head 21; the function of this step is to mount the cross brace apparatus 2 to the pre-mounted tenon apparatus 4 by hoisting after the tenon apparatus 4 and the pad 5 are mounted. The connection and fixation of the cross brace apparatus 2 and the tenon apparatus 4 are achieved by inserting the left end tenon seat 22 and the right end tenon seat 23 of the cross brace apparatus 2 into the cross brace end 21, respectively.
S4: after the structure is installed, the pre-tightening device 6 is installed between the cross brace device 2 and the cushion block 5, and the jack 61 lifts the cushion block 5 to tightly copy the cross brace device 2 and the cushion block 5 by using the steel wedge block 62 after the cushion block 5 is lifted to a set value. The function of this step is to install the pretensioning device 6 between the wale device 2 and the cushion block 5, lift the cushion block 5 to the set value by the jack 61, and then tightly copy the wale device 2 and the cushion block 5 by using the steel wedge block 62. The installation of the pre-tightening means 6 can provide a pre-compression between the cross-brace 2 and the head block 5, ensuring the tightness and stability of the connection. The jack 61 can lift the cushion block 5, and the steel wedge block 62 can fasten the transverse supporting device 2 and the cushion block 5 together to avoid loosening and displacement.
Through the operation of above step, can accomplish the construction of novel bridge stull structure that has mortise and tenon structure, ensure the stability and the security of structure. Each step has the function of ensuring the firm connection between the components and meeting the design requirement and the construction standard.
Further, in S1, specific requirements of the pre-buried climbing cone device 3 are: the embedding of the climbing cone device 3 should be arranged in the tower 1 strictly according to the preset Gao Chengmai, and the elevation deviation should not be more than 2mm,
when embedding the climbing device 3, it is necessary to determine the installation position of the climbing device 3 according to the design requirements and the actual conditions of the structure, and to embed the climbing device at the position. In performing the embedding, it is necessary to use appropriate tools and measuring instruments to ensure accuracy of the elevation.
The control of the elevation deviation is to ensure the quality of installation of the climbing cone device 3 and the smooth progress of the subsequent steps. If the elevation deviation is too large, the installation of the cross brace structure is difficult or unstable, and the stability and the safety of the whole bridge structure are affected.
Therefore, in the step S1, the climbing cone device 3 must be provided strictly according to Gao Chengmai determined in advance, and it is ensured that the elevation deviation is not more than 2mm to meet the requirements and standards of the structural construction.
Further, in S2, the specific requirements for processing the tenon device 4 and the cushion block 5 are as follows: in order to make the lifting process smoother, the tenon device 4 and the cushion block 5 should be provided with lifting eyes in advance on the ground or in factories to facilitate the lifting, and the tenon device 4 is a device for connecting bridge members and is usually composed of an upper part and a lower part, wherein the upper part is a protruding part called a tenon, and the lower part is a recessed part called a tenon seat. The machining of the tenon means 4 is required to be carried out according to design requirements, ensuring that the shape and dimensions of the tenon can be fully engaged with the tenon seat to provide a stable connection.
In the machining of the tenon means 4, it is optional to perform the setting at the ground or factory. The purpose of this is to facilitate the subsequent hoisting operation. Through setting up the lifting eye at ground or mill, can use crane or other lifting device to hoist its integral hoisting to appointed position after tenon device 4 and cushion 5 processing are accomplished, reduce the complexity and the risk of site operation.
Therefore, in step S2, in order to make the lifting process smoother, the tenon device 4 and the pad 5 should be provided with lifting eyes in advance on the ground or in a factory, so as to facilitate the subsequent lifting operation. This can improve the construction efficiency and quality and ensure the stability and safety of the connection member.
Further, in S3, the specific requirements for connecting the cross brace apparatus 2 and the tenon apparatus 4 are as follows: the connection between the cross brace device 2 and the tenon device 4 should be tightly meshed, if the gap between the two devices is reserved too large, a steel wedge block 62 or other devices with the same size should be plugged for structural shoveling, and when the cross brace device 2 and the tenon device 4 are connected, firstly, the manufacture and design of the tenon device 4 are ensured to meet the requirements, so as to ensure that the size and the shape of the tenon device are completely matched with the tenon seat. Then, during the connection process, it is necessary to keep the engagement of the two tight to provide a stable connection and load carrying capability.
If a large intermediate gap is found between the cross brace apparatus 2 and the tenon apparatus 4 during the connection, this may affect the stability and safety of the connection. To solve this problem, the following measures can be taken: and (4) plugging the steel wedge block 62: according to the actual situation, the steel wedge blocks 62 which are in accordance with the size are selected and plugged into the gaps, and the positions and the number of the steel wedge blocks 62 are adjusted, so that the connection between the transverse bracing device 2 and the tenon device 4 is tight and stable.
It is important to ensure that the connection cross brace apparatus 2 is tightly engaged with the tenon apparatus 4 and is properly structured to ensure stability and safety of the connection. Therefore, the overall strength and stability of the structure can be effectively improved, and the design requirements and engineering requirements are met.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311589626.6A CN117513155A (en) | 2023-11-24 | 2023-11-24 | A new type of bridge cross-bracing structure with tenon and tenon structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311589626.6A CN117513155A (en) | 2023-11-24 | 2023-11-24 | A new type of bridge cross-bracing structure with tenon and tenon structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117513155A true CN117513155A (en) | 2024-02-06 |
Family
ID=89766088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311589626.6A Pending CN117513155A (en) | 2023-11-24 | 2023-11-24 | A new type of bridge cross-bracing structure with tenon and tenon structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117513155A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163325A (en) * | 2003-12-01 | 2005-06-23 | Sekisui House Ltd | Joining bracket |
| CN109267498A (en) * | 2018-11-28 | 2019-01-25 | 中国铁建大桥工程局集团有限公司 | A kind of bridge main tower stull construction method |
| CN113338159A (en) * | 2021-06-28 | 2021-09-03 | 中铁大桥局第七工程有限公司 | Concrete tower column cross brace structure and construction method thereof |
| CN219886545U (en) * | 2023-05-09 | 2023-10-24 | 中铁建大桥工程局集团第四工程有限公司 | Bridge stull structure with mortise and tenon structure |
-
2023
- 2023-11-24 CN CN202311589626.6A patent/CN117513155A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163325A (en) * | 2003-12-01 | 2005-06-23 | Sekisui House Ltd | Joining bracket |
| CN109267498A (en) * | 2018-11-28 | 2019-01-25 | 中国铁建大桥工程局集团有限公司 | A kind of bridge main tower stull construction method |
| CN113338159A (en) * | 2021-06-28 | 2021-09-03 | 中铁大桥局第七工程有限公司 | Concrete tower column cross brace structure and construction method thereof |
| CN219886545U (en) * | 2023-05-09 | 2023-10-24 | 中铁建大桥工程局集团第四工程有限公司 | Bridge stull structure with mortise and tenon structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102733545B (en) | Section steel column for high-rise building section steel concrete combination structure, and construction method thereof | |
| CN103669883B (en) | A method for installation and adjustment of combined shock-isolation bearing | |
| CN107060075A (en) | A kind of supporting construction connected for fabricated construction beam slab and installation method | |
| CN110629675A (en) | Cast-in-place pier top rotating and cantilever pouring combined construction method for continuous beam support | |
| CN110900082A (en) | A large-scale I-beam welding platform and welding method | |
| CN114592384B (en) | Fine-tuning method for steel spring prefabricated plate | |
| CN113431339A (en) | Supporting-free mounting process for three-section column umbrella-shaped overhanging component | |
| CN101881029A (en) | Detachable tower foundation | |
| CN104153479B (en) | Construction method and construction device for loading hole of reaction force plate | |
| CN108589905B (en) | Truss corridor integral post-lifting construction system and construction method thereof | |
| CN117513155A (en) | A new type of bridge cross-bracing structure with tenon and tenon structure | |
| CN109322323B (en) | Installation method of large-angle inclined equipment bottom plate | |
| CN204530501U (en) | The support bearing of arc rib alignment is controlled during a kind of constructability | |
| CN119507465A (en) | A method for equally assembling and reinforcing a prefabricated template for an arc-shaped equipment foundation | |
| CN210887278U (en) | Fixing device for cup mouth type concrete foundation pit stand column | |
| CN110436333B (en) | Auxiliary force-applying structure and construction method for steel structure hoisting | |
| CN218714838U (en) | Self-lifting heavy-load construction platform | |
| CN211922307U (en) | Pier stud guiding and limiting device | |
| CN111085848B (en) | H-shaped steel beam installation and butt joint combination tool and butt joint installation method | |
| CN109914466B (en) | Method for mounting equipment by using adjustable inclined iron | |
| CN201704698U (en) | Detachable tower footing | |
| CN223997202U (en) | Steel reinforcement cage ligature bed-jig | |
| CN115288287B (en) | Inclined installation system and installation method for oversized fusiform column | |
| CN112878502A (en) | Building shock insulation support and non-jacking replacement method thereof | |
| CN221461977U (en) | Vertical pre-assembled base of large steel tower |
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 |