CN109812022B - Construction method of cable net structure with double oblique arches and double parabolic surfaces - Google Patents
Construction method of cable net structure with double oblique arches and double parabolic surfaces Download PDFInfo
- Publication number
- CN109812022B CN109812022B CN201910077871.6A CN201910077871A CN109812022B CN 109812022 B CN109812022 B CN 109812022B CN 201910077871 A CN201910077871 A CN 201910077871A CN 109812022 B CN109812022 B CN 109812022B
- Authority
- CN
- China
- Prior art keywords
- cable
- arch
- double
- oblique
- bearing
- 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
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a construction method of a cable net structure with double oblique arches and double curved paraboloids, which solves the problems of high construction difficulty, incapability of standardized operation of construction and low construction efficiency in the prior art. The invention comprises the following steps: step 1, processing a double-inclined arch support; step 2, constructing a gravity type anti-pushing foundation pile foundation and a foundation pit; step 3, erecting a main arch springing support frame; step 4, arch springing construction; step 5, erecting a double-oblique-arch supporting arch body bracket; step 6, installing the double-oblique-arch bearing arch body section; step 7, folding the body sections of the double-oblique-arch bearing arches; step 8, monitoring deformation of the bracket; step 9, erecting a cable disc; step 10, laying and constructing a cable net; step 11, installing a lifting tool; step 12, lifting and tensioning the cable net; and step 13, completing construction after the support is removed. The construction method has scientific and reasonable design, can carry out standardized construction, can effectively reduce the construction difficulty, has compact construction rhythm, can effectively improve the construction efficiency and shorten the construction period.
Description
Technical Field
The invention relates to a construction method of a cable net structure of a double-oblique-arch bearing hyperbolic paraboloid.
Background
The cable net structure of the double-oblique-arch hyperbolic paraboloid is large in construction difficulty because the cable net structure needs to be installed on the double-oblique-arch hyperbolic paraboloid, a standardized construction method is not available in the prior art, and meanwhile, the existing installation construction efficiency is low and the construction period progress is slow. Therefore, a method for constructing a cable net structure with double oblique arches and hyperbolic paraboloids is designed, so that the cable net structure with double oblique arches and hyperbolic paraboloids can be constructed in a standardized manner, construction difficulty is reduced, construction efficiency is improved, and construction period is shortened, and the method becomes a technical problem to be solved by technical personnel in the technical field.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the construction method of the cable net structure with the double-oblique-arch support and the double-curved paraboloid is provided, and the problems that in the prior art, construction difficulty is high, construction cannot be operated in a standardized mode, and construction efficiency is low are solved.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the construction method of the cable net structure of the double-oblique-arch bearing double-curved paraboloid comprises the following steps:
step 3, erecting a main arch springing support frame, fixing a support through an embedded part and a cross brace, and arranging a support positioning steel plate on the support;
step 5, erecting a double-oblique-arch-shaped arch body supporting frame, performing foundation stabilization treatment on the supporting frame before erecting the supporting frame, arranging corresponding drainage facilities around the supporting frame foundation, binding corresponding steel bars in the foundation, embedding a supporting frame embedded part, pouring concrete in the foundation and maintaining, erecting a supporting frame standard section after the strength is reached, retesting the elevation, erecting a supporting frame adjusting platform, and installing a truss between the supporting frames;
step 7, folding the double-oblique-arch bearing arch body section, wherein the middle of the double-oblique-arch bearing arch body section is a folding section, when folding, firstly detecting the folding temperature and measuring the coordinates of the butt joint of the folding section, and adopting a single-machine crawler crane to carry out hoisting and folding;
step 8, monitoring deformation of the support, and measuring the perpendicularity of the support system and the settlement deformation of the support before and after installation of each arch body section;
and step 13, dismantling the support, namely cutting the welded and fixed part of the elevation column and the main arch of the double-oblique-arch support before the bearing cable is tensioned in place, dismantling all the support frames after tensioning the cable net, and completing construction of the double-oblique-arch hyperbolic paraboloid cable net structure.
Further, after step 13 is completed, cable net deformation monitoring is needed, a total station and a reflective sheet are adopted for cable net deformation monitoring, 23 monitoring points are arranged on the cable net structure of the double-oblique-arch hyperbolic paraboloid, and during actual detection, the reflective sheet is pasted on each detection point so as to facilitate observation, positioning and data acquisition.
Further, in step 6, the method for hoisting the first segment of the arch body segment comprises the following steps: and (3) lofting five alignment coordinates at two ends of the double-oblique-arch-shaped arch-supporting body section in the model, hoisting the first-section arch body section by adopting a double-machine crawler, placing the first-section arch body section on an elevation column of a support frame adjusting platform, retesting five coordinates of an upper opening and a lower opening of the double-oblique-arch-shaped arch body section, comparing the coordinates with a theoretical value, adjusting if deviation exists, welding and fixing the first-section arch body section and the elevation column after the first-section arch body section is in place, welding a lower end interface, and loosening a hook of a crane after the lower end interface is stabilized.
Further, in step 6, the method for hoisting the second and third segments and the rest segments of the double-oblique-arch-bearing segment is the same as the method for hoisting the first segment.
Further, in step 7, the folding temperature must be between 15 ℃ and 25 ℃.
Further, in step 10, when the cable laying platform is set up at the cable head projection position, the cable laying platform adopts a welded steel frame, and the welded steel frame is transported in a turnover mode through a crane and placed at the cable laying position.
Further, in step 10, the spreading ropes during the laying construction of the rope net are sequentially the bearing ropes → the wind resisting ropes → the outer auxiliary ropes.
Further, in the step 10, in the cable net laying process, when the bearing cable is unfolded, the bearing cable is clamped together by adopting the lower half cable clamp of the cable clamp and the middle part of the cable clamp, and then the bearing cable is laid on the ground in the axis direction of the bearing cable by utilizing a crane and a cable laying disc; when the wind-resistant cable is laid, the wind-resistant cable is clamped and installed by the upper cover plate of the cable clamp, and then the wind-resistant cable is laid on the ground in the axis direction of the wind-resistant cable by the aid of the crane and the cable laying disc.
Further, in the step 12, in the process of drawing the bearing cable, the wind resisting cable and the outer auxiliary cable, the deviation between the drawing length of the tooling cable and a theoretical value is less than +/-50 mm, and the deviation between the drawing force and a theoretically calculated cable force value is less than +/-30%; the pressure was increased slowly in stages during the initial tensile lift, initially to 40% of the desired pressure, and then in stages at 60%, 80% and 90% of the desired pressure, and in all cases to 100% again.
Compared with the prior art, the invention has the following beneficial effects:
the construction method of the cable net structure with the double-oblique-arch-bearing double-curved paraboloid is scientific and reasonable in design, standardized construction can be achieved, the construction difficulty can be effectively reduced, the construction rhythm is compact, the construction efficiency can be effectively improved, and the construction period can be shortened.
Drawings
Fig. 1 is a schematic view of a cable net structure of a double-skew-arch hyperbolic paraboloid of the invention.
FIG. 2 is a schematic diagram of the stent architecture of the present invention.
FIG. 3 is a schematic view of a support frame embedded part structure according to the present invention.
Fig. 4 is a top view of fig. 3.
FIG. 5 is a schematic structural view of a standard section of the support frame of the present invention.
Fig. 6 is a sectional view B-B of fig. 5.
FIG. 7 is a schematic view of an adjusting platform of the supporting frame of the present invention.
Fig. 8 is a schematic view of the structure of the connection truss between the support frames according to the present invention.
FIG. 9 is a schematic view of the supporting frame structure of the embedded plate of the main arch springing of the invention.
Fig. 10 is a schematic view of the embedded part structure of the supporting frame of the main arch springing embedded plate of the invention.
FIG. 11 is a schematic view of the stent structure of the present invention.
FIG. 12 is a schematic view of a embedment structure of the invention.
Figure 13 is a schematic view of the load bearing cable of the present invention.
Fig. 14 is a schematic view of the cable clamp structure of the present invention.
Fig. 15 is a schematic view of the structure of the arch springing embedded plate of the invention.
Fig. 16 is a schematic view of the arch springing structure of the invention.
Fig. 17 is an installation view of the arch springing and the arch body section of the present invention.
Fig. 18 is a schematic view of the installation of the arch springing of the present invention to the connecting bottom plate.
FIG. 19 is a schematic diagram of a positioning code plate according to the present invention.
Fig. 20 is a schematic view of the gravity type anti-pushing base of the present invention.
FIG. 21 is a schematic view of the cable reel of the present invention.
FIG. 22 is a schematic view of the outer secondary cable being tensioned according to the present invention.
Fig. 23 is a schematic structural view of the lifting tool of the present invention.
Wherein, the names corresponding to the reference numbers are:
2-bracket system, 4-double inclined arch supporting arch body section, 5-secondary ring beam circular tube, 6-cable laying disc, 7-bearing cable, 8-wind resisting cable, 9-tensioning outer secondary cable, 10-cable clamp, 12-wall protecting pile foundation, 13-foundation pit, 14-main arch foot embedded plate support frame, 15-arch foot embedded plate, 16-bracket, 17-connecting bottom plate, 21-support frame embedded part, 22-support frame standard section, 23-support frame adjusting platform, 24-inter-support frame connecting truss, 41-cable connecting ear plate, 42-ear plate, 43-climbing jack, 71-bearing cable axial direction, 81-wind resisting cable axial direction, 101-lower half cable clamp, 102-cable clamp middle part, 103-upper cover plate, 141-main arch foot embedded plate support frame embedded part, 161-embedded parts, 162-cross braces, 171-positioning code plates, 181-first sections of arch springing, 182-other sections of arch springing, 183-connecting partition plates, 184-conversion end plates and 231-double inclined arch support elevation columns.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in figures 1-23, the invention provides a construction method of a double-oblique-arch bearing hyperbolic paraboloid cable net structure. The construction method of the cable net structure with the double-oblique-arch hyperbolic paraboloid comprises the following steps of:
And 3, erecting a main arch springing support frame, fixing the support 16 through the embedded part 161 and the cross brace 162, and arranging a support positioning steel plate on the support.
And 5, erecting a double-oblique-arch-bearing arch body support, performing foundation stabilization treatment on the support before erecting the support, arranging corresponding drainage facilities around the support foundation, binding corresponding steel bars in the foundation, embedding a support frame embedded part 21, pouring concrete in the foundation, maintaining, erecting a support frame standard joint 22 after the strength is reached, retesting the elevation, erecting a support frame adjusting platform 23, and installing a truss 24 between the support frames.
And 7, folding the double-oblique-arch bearing arch body section, wherein the middle of the double-oblique-arch bearing arch body section is a folding section, the folding temperature is detected and the coordinates of the butt joint of the folding section are measured during folding, hoisting and folding are carried out by adopting a single-machine crawler crane, and the folding temperature is required to be between 15 and 25 ℃.
And 8, monitoring deformation of the support, and measuring the perpendicularity of the support system 2 and the settlement deformation of the support before and after installation of each arch body section.
And 11, installing a lifting tool, installing an operation platform at the position where the stay cable is in place, using the left and right welded lug plates 42 of the stay cable connecting lug plate 41 as acting points, and installing 2 climbing jacks 43 on each stay cable to lift and install the stay cable.
And step 12, hoisting and tensioning the cable net, firstly, towing and lifting the bearing cable 7, anchoring when the cable head of the bearing cable 7 reaches the ring beam anchoring point, then, towing and tensioning the wind-resistant cable 8 until the cable is completely tensioned, and then, towing and lifting the outer tension auxiliary cable 9. In the process of drawing the bearing cable 7, the wind resisting cable 8 and the outer auxiliary tensioning cable 9, the deviation of the drawing length of the tooling cable and a theoretical value is less than +/-50 mm, and the deviation of the drawing force and the theoretical calculated cable force value is less than +/-30%; the pressure was increased slowly in stages during the initial tensile lift, initially to 40% of the desired pressure, and then in stages at 60%, 80% and 90% of the desired pressure, and in all cases to 100% again.
And step 13, dismantling the support, namely cutting the welded and fixed part of the elevation column 231 of the double-oblique-arch support and the main arch before the bearing cable 7 is tensioned in place, dismantling all support frames after tensioning of the cable net is completed, and completing construction of the double-oblique-arch hyperbolic paraboloid cable net structure. And after the step 13 is finished, cable network deformation monitoring is required, wherein a total station and a reflective sheet are adopted for cable network deformation monitoring, 23 monitoring points are arranged on the cable network structure of the double-oblique-arch hyperbolic paraboloid, and during actual detection, the reflective sheet is adhered to each detection point so as to facilitate observation, positioning and data acquisition.
The construction method of the cable net structure with the double-oblique-arch-bearing double-curved paraboloid is scientific and reasonable in design, standardized construction can be achieved, the construction difficulty can be effectively reduced, the construction rhythm is compact, the construction efficiency can be effectively improved, and the construction period can be shortened.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (9)
1. The construction method of the cable net structure of the double-oblique-arch double-curved paraboloid is characterized by comprising the following steps of:
step 1, processing the double-inclined arch support, prefabricating the double-inclined arch support in sections in a factory, and pre-assembling the sections after the prefabrication of the sections is finished;
step 2, constructing a gravity type anti-push foundation pile foundation and a foundation pit, firstly performing field hardening on the periphery of the anti-push foundation, making a retaining wall pile foundation, excavating the foundation pit, pre-embedding a main arch springing embedded plate support frame embedded part, pouring a cushion layer, and arranging a main arch springing embedded plate support frame on the cushion layer; pouring foundation concrete to a position below-0.5 m of the double-arch springing embedded plate; after concrete curing is finished, installing the arch springing embedded plate;
step 3, erecting a main arch springing support frame, fixing a support through an embedded part and a cross brace, and arranging a support positioning steel plate on the support;
step 4, arch springing construction, namely correcting the pre-embedded plate, installing the pre-embedded plate and a connecting bottom plate of the main arch springing, popping up a main arch springing alignment line on the bottom plate, and adding a positioning code plate; hoisting the first section of the arch springing by adopting a double-machine crawler crane, enabling the lower end of the first section to be close to the positioning code plate and enabling the edge line to be aligned with the positioning line, slowly dropping the upper end of the first section on a positioning steel plate of the bracket, immediately welding the arch springing section with the positioning code plate after adjusting the line shape and the elevation to a set position, and then loosening the hook of the crawler crane after the bottom welding seam is 1/3 of the thickness; hoisting the other section of the arch springing by adopting the method; after the arch springing is hoisted, hoisting the connecting partition plate, and finally hoisting the conversion end plate; binding arch springing, reinforcing steel bars, supporting a mold, pouring arch springing concrete, vibrating and compacting, and maintaining;
step 5, erecting a double-oblique-arch-shaped arch body supporting frame, performing foundation stabilization treatment on the supporting frame before erecting the supporting frame, arranging corresponding drainage facilities around the supporting frame foundation, binding corresponding steel bars in the foundation, embedding a supporting frame embedded part, pouring concrete in the foundation and maintaining, erecting a supporting frame standard section after the strength is reached, retesting the elevation, erecting a supporting frame adjusting platform, and installing a truss between the supporting frames;
step 6, installing the double-oblique-arch supporting arch body section, and respectively adopting a single-machine crawler crane to hoist the whole double-oblique-arch supporting arch body section according to the following sequence: hoisting a first segment of the double-oblique-arch-bearing arch body segment → performing concrete pouring of the first segment of the arch body segment → hoisting a second and a third segments of the double-oblique-arch-bearing arch body segment → hoisting a secondary ring beam segment of the double-oblique-arch-bearing arch body segment → hoisting a residual arch body segment of the double-oblique-arch-bearing arch body segment → hoisting a secondary ring beam circular tube of the double-oblique-arch-bearing arch body segment;
step 7, folding the double-oblique-arch bearing arch body section, wherein the middle of the double-oblique-arch bearing arch body section is a folding section, when folding, firstly detecting the folding temperature and measuring the coordinates of the butt joint of the folding section, and adopting a single-machine crawler crane to carry out hoisting and folding;
step 8, monitoring deformation of the support, and measuring the perpendicularity of the support system and the settlement deformation of the support before and after installation of each arch body section;
step 9, erecting a cable disc, placing the cable disc outside the double-oblique-arch bearing, binding the local part of the cable disc by using a hoisting belt, releasing while releasing the cable, releasing while binding, and slowly drawing at a constant speed; after the inhaul cable is unfolded, straightening the inhaul cable by adopting a guide chain according to the straight marking line on the surface of the inhaul cable body, and preventing the inhaul cable body from twisting and jumping wires;
step 10, laying construction of a cable net, namely firstly, lofting projection positions of a bearing cable and an anti-wind cable head of a half of a symmetry axis according to three-dimensional space coordinates of the cable, then erecting a cable laying platform at the cable head projection position, then using a crane to hoist the cable to the cable laying platform according to the position number of the cable, then using a crane and a cable laying disc to lay the bearing cable on the ground in the axial direction of the bearing cable, and finally using the crane and the cable laying disc to lay the anti-wind cable and a tensioned outer auxiliary cable on the ground in the axial direction of the anti-wind cable;
step 11, installing a lifting tool, namely installing an operation platform at the position where the inhaul cable is in place, using the left and right welded ear plates of the inhaul cable connecting ear plates as acting points, and installing 2 climbing jacks on each inhaul cable to lift and install the inhaul cable;
step 12, hoisting and tensioning the cable net, namely firstly towing and lifting the bearing cable, anchoring when the cable head of the bearing cable reaches the ring beam anchoring point, then towing and tensioning the wind-resistant cable until the tensioning of the cable is completed, and then towing and lifting the outer tension auxiliary cable;
and step 13, dismantling the support, namely cutting the welded and fixed part of the elevation column and the main arch of the double-oblique-arch support before the bearing cable is tensioned in place, dismantling all the support frames after tensioning the cable net, and completing construction of the double-oblique-arch hyperbolic paraboloid cable net structure.
2. The method for constructing a cable net structure of a double-oblique-arch hyperbolic paraboloid according to claim 1, wherein after step 13 is completed, cable net deformation monitoring is further performed, wherein a total station and a reflector are adopted for cable net deformation monitoring, a total of 23 monitoring points are arranged on the cable net structure of the double-oblique-arch hyperbolic paraboloid, and during actual detection, a reflector is adhered to each detection point so as to facilitate observation, positioning and data acquisition.
3. The construction method of the cable net structure of the double-oblique-arch hyperbolic paraboloid of claim 2, wherein in the step 6, the method for hoisting the first segment of the arch body is as follows: and (3) lofting five alignment coordinates at two ends of the double-oblique-arch-shaped arch-supporting body section in the model, hoisting the first-section arch body section by adopting a double-machine crawler, placing the first-section arch body section on an elevation column of a support frame adjusting platform, retesting five coordinates of an upper opening and a lower opening of the double-oblique-arch-shaped arch body section, comparing the coordinates with a theoretical value, adjusting if deviation exists, welding and fixing the first-section arch body section and the elevation column after the first-section arch body section is in place, welding a lower end interface, and loosening a hook of a crane after the lower end interface is stabilized.
4. The construction method of the cable net structure of the double-oblique-arch-bearing hyperbolic paraboloid according to claim 3, wherein in step 6, the method for hoisting the second and third segments of the double-oblique-arch-bearing arch segments and the rest of the arch segments is the same as the method for hoisting the first segment of the arch segments.
5. The method for constructing the cable net structure of the double-oblique-arch hyperbolic paraboloid according to claim 4, wherein in step 7, the folding temperature must be between 15 ℃ and 25 ℃.
6. The method for constructing a cable net structure of a double-pitched arch support hyperbolic paraboloid according to claim 5, wherein in the step 10, when the cable laying platform is erected at the cable head projection position, the cable laying platform adopts a welded steel frame, and the welded steel frame is transported in a turnover mode through a crane and placed at the cable laying position.
7. The construction method of the cable net structure of the double-oblique-arch hyperbolic paraboloid according to claim 6, wherein in the step 10, the cable spreading sequence during the cable net laying construction is load bearing cable → wind resisting cable → external auxiliary cable tensioning in sequence.
8. The construction method of the cable net structure with the double oblique arches and the hyperbolic paraboloid of claim 7, wherein in the step 10, when the bearing cables are unfolded, the bearing cables are clamped together by the lower half cable clamps of the cable clamps and the middle parts of the cable clamps, and then the bearing cables are laid on the ground in the axial direction of the bearing cables by using a crane and a cable tray; when the wind-resistant cable is laid, the wind-resistant cable is clamped and installed by the upper cover plate of the cable clamp, and then the wind-resistant cable is laid on the ground in the axis direction of the wind-resistant cable by the aid of the crane and the cable laying disc.
9. The construction method of the cable net structure of the double-oblique-arch hyperbolic paraboloid of claim 8, wherein in step 12, in the process of drawing the bearing cables, the wind resisting cables and the outer auxiliary cables, the deviation of the drawing length of the tooling cables from the theoretical value is less than +/-50 mm, and the deviation of the drawing force from the theoretical value is less than +/-30%; the pressure was increased slowly in stages during the initial tensile lift, initially to 40% of the desired pressure, and then in stages at 60%, 80% and 90% of the desired pressure, and in all cases to 100% again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077871.6A CN109812022B (en) | 2019-01-28 | 2019-01-28 | Construction method of cable net structure with double oblique arches and double parabolic surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077871.6A CN109812022B (en) | 2019-01-28 | 2019-01-28 | Construction method of cable net structure with double oblique arches and double parabolic surfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109812022A CN109812022A (en) | 2019-05-28 |
| CN109812022B true CN109812022B (en) | 2021-04-09 |
Family
ID=66605498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910077871.6A Active CN109812022B (en) | 2019-01-28 | 2019-01-28 | Construction method of cable net structure with double oblique arches and double parabolic surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812022B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552428B (en) * | 2019-08-12 | 2020-10-02 | 浙江大学 | Spiral stretch-draw overall structure |
| CN115726582A (en) * | 2022-11-29 | 2023-03-03 | 中建三局集团有限公司 | Construction method for integrally lifting large-span vehicle-amplitude single-double-layer mixed cable net |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2099588A1 (en) * | 1970-07-24 | 1972-03-17 | Biggs Dutton | |
| US4143502A (en) * | 1975-07-14 | 1979-03-13 | Wyche Cyril T | Method of erecting a structural arch support |
| WO1997006326A1 (en) * | 1995-08-08 | 1997-02-20 | Gerig Grafik Design | Unsupported, braced arch element and protecting roof with such an element |
| CN103883125A (en) * | 2014-04-08 | 2014-06-25 | 北京市建筑工程研究院有限责任公司 | Extra-large-span saddle-shaped flexible network cable tensioning forming construction method |
| CN107460956A (en) * | 2017-09-18 | 2017-12-12 | 清华大学 | A kind of self-balancing cable net structure that can relax wind load |
-
2019
- 2019-01-28 CN CN201910077871.6A patent/CN109812022B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2099588A1 (en) * | 1970-07-24 | 1972-03-17 | Biggs Dutton | |
| US4143502A (en) * | 1975-07-14 | 1979-03-13 | Wyche Cyril T | Method of erecting a structural arch support |
| WO1997006326A1 (en) * | 1995-08-08 | 1997-02-20 | Gerig Grafik Design | Unsupported, braced arch element and protecting roof with such an element |
| CN103883125A (en) * | 2014-04-08 | 2014-06-25 | 北京市建筑工程研究院有限责任公司 | Extra-large-span saddle-shaped flexible network cable tensioning forming construction method |
| CN107460956A (en) * | 2017-09-18 | 2017-12-12 | 清华大学 | A kind of self-balancing cable net structure that can relax wind load |
Non-Patent Citations (1)
| Title |
|---|
| 于晓野等.从雷利体育馆分析看减小结构内力的措施.《 第十二届空间结构学术会议论文集》.2008, * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109812022A (en) | 2019-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107090932B (en) | Construction method of large-span thin-wall plane arch truss based on stiff ring beam | |
| US11280055B1 (en) | Construction device and method for lateral bracing in ultra-deep foundation pit with silt | |
| CN109812022B (en) | Construction method of cable net structure with double oblique arches and double parabolic surfaces | |
| CN113638304B (en) | Concrete beam type bridge hidden cover beam structure system and construction method thereof | |
| JP2013155600A (en) | Bridge pier of composite steel pipe-concrete structure | |
| CN111980418A (en) | Construction method for hoisting steel structure roof of beam string dome in large-scale public building engineering | |
| CN111877166A (en) | Incremental launching construction method for bridge steel box girder with slope | |
| CN113982281A (en) | Super-tonnage space truss lifting and reinforcing structure and construction method thereof | |
| CN113338333A (en) | Quick mounting method for steel beam plate under cover-excavation top-down condition | |
| CN110318344B (en) | Novel steel box girder No. 0 block support and No. 0 block erection construction method | |
| JPH1077749A (en) | Roof constructing method for tower-shaped structure | |
| CN114908968B (en) | Construction method of large-span fish-bellied pipe truss in gymnasium | |
| JP3215059B2 (en) | Construction method of tower-like structure roof | |
| CN110080455A (en) | A kind of precast shear wall, connecting node and its construction method | |
| CN115288300A (en) | Integral lifting method for single-layer spherical reticulated shell dome | |
| CN209976550U (en) | Quasi-rectangular shield tunnel segment structure with temporary support | |
| US4282696A (en) | Method for fabricating and erecting unitary structural elements | |
| CN112575948A (en) | Truss string beam and cantilever truss combined roof truss and construction method | |
| CN112681150A (en) | Prefabricated hoisting system for box-type arch bridge and construction method | |
| JP2018091056A (en) | Prefabrication structure | |
| CN111778856A (en) | Construction method of main tower steel bar | |
| CN214531431U (en) | Truss combination roof truss of opening string roof beam and encorbelmenting | |
| CN116122579A (en) | Hoisting method for bidirectional bending dome bracket | |
| CN217027044U (en) | Quick positioning and adjusting device for segmental hoisting of ultra-long flexible steel bar framework | |
| CN214527669U (en) | Bridge steel case roof beam hoisting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |