CN111021614A - Multi-layer large-span prestressed system and frame body quick-dismantling construction method thereof - Google Patents
Multi-layer large-span prestressed system and frame body quick-dismantling construction method thereof Download PDFInfo
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- CN111021614A CN111021614A CN201911314823.0A CN201911314823A CN111021614A CN 111021614 A CN111021614 A CN 111021614A CN 201911314823 A CN201911314823 A CN 201911314823A CN 111021614 A CN111021614 A CN 111021614A
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- 238000010276 construction Methods 0.000 title claims abstract description 80
- 210000002435 tendon Anatomy 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
Abstract
The invention relates to a multi-layer large-span prestressed system and a frame body quick-dismantling construction method thereof, wherein the multi-layer large-span prestressed system comprises slow-bonding prestressed tendons embedded in a floor slab and a frame body which is used for supporting the floor slab and can reserve a tensioning operation space; the construction method for quickly disassembling the frame body comprises the following steps: constructing a main building structure layer by layer from bottom to top, and burying a slow bonding prestressed tendon in a floor slab; and (4) carrying out prestress tensioning on the floor slabs of the floors reaching the tensioning condition and dismantling the frame body of each floor after the prestress tensioning of the floor is finished. The invention eliminates the limitation that the lower frame body cannot be dismantled before the prestress tensioning by adopting the slow bonding prestressed tendons, can tightly connect the construction of the main structure of the building, the prestress tensioning and the frame body dismantling, and accelerates the construction progress of the frame body dismantling; through the support body that adopts socket joint type keyway formula, further accelerated the support body and taken the construction progress of tearing open to be convenient for provide operating condition for prestressing force stretch-draw.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to the field of large-span prestress construction, and specifically relates to a multi-layer large-span prestress system and a frame body quick-dismantling construction method thereof.
Background
The prestress technology is widely applied to a large-span structure, and can completely or partially offset tensile stress caused by load, reduce cracks and avoid structural damage. In a large-span prestress system, prestress tensioning construction is an important process, the construction period is long, a support frame body at the lower part of each layer cannot be dismounted before prestress tensioning is carried out on each layer, otherwise, the structure safety is seriously influenced, and the frame bodies of all floors at the lower part can be sequentially dismounted only after the prestress tensioning is finished at the top layer according to the logical reasoning, so that the dismounting time of the frame bodies is seriously lagged, the next process construction cannot be inserted in time, and the construction period is seriously influenced; moreover, the prestress distribution area usually adopts the traditional bowl buckle frame body, the vertical rod distance (usually 600-900 mm) is too small, the space is limited, and the operation condition during prestress tensioning can not be met.
In summary, it is necessary to provide a multi-layer large-span prestressed system and a quick-dismantling construction method for a frame body thereof, which can ensure the safety of the structure and reduce the influence of the prestressed tension construction process on the structure construction, thereby accelerating the construction progress of the frame body dismantling.
Disclosure of Invention
The invention aims to eliminate the limitation of prestress tensioning during the dismantling of a frame body by adopting a multi-layer large-span prestress system combining a slow-bonding prestress rib and a large-space frame body, and provides a frame body quick-dismantling construction method for tightly connecting the construction of a building main body structure, the prestress tensioning construction and the frame body dismantling construction based on the multi-layer large-span prestress system, so that the construction progress of the frame body dismantling is accelerated.
The invention is realized by the following technical scheme: the utility model provides a multilayer large-span prestressing force system, is including burying underground the slow bonding prestressing tendons in the floor and being used for supporting the support body of floor, the support body corresponds the stretch-draw operation space of at least one station is left in the position department of the stretch-draw node of slow bonding prestressing tendons.
The multilayer large-span prestressed system is further improved in that the frame body comprises a plurality of vertical rods which are arranged at intervals, and the distance between the vertical rods adjacent to the tensioning nodes is not less than 1200 mm.
The multilayer large-span prestress system is further improved in that the frame body is a socket key groove type frame body.
The invention provides a frame body quick-dismantling construction method of a multi-layer large-span prestressed system, which comprises the following steps:
constructing a main building structure layer by layer from bottom to top, and embedding the slow bonding prestressed tendons in a floor slab of the main building structure;
and (3) carrying out prestress tensioning on the floor slabs of the floors reaching the tensioning condition, and dismantling the frame body on each floor after the prestress tensioning of the floor is finished.
The quick-release construction method for the frame body of the multi-layer large-span prestressed system is further improved in that when a main structure of a building is constructed, tensioning nodes of the slowly-bonded prestressed tendons are preset, the frame body is arranged and erected according to the positions of the tensioning nodes, and at least one station tensioning operation space is reserved at the position, corresponding to the tensioning nodes of the slowly-bonded prestressed tendons, of the frame body.
The frame body quick-dismantling construction method of the multi-layer large-span prestressed system is further improved in that when the frame body is erected, the vertical rods of the frame body are arranged by avoiding the positions of the tensioning nodes, and the distance between the vertical rods adjacent to the tensioning nodes is not less than 1200 mm.
The invention further improves the quick-dismantling construction method of the frame body of the multi-layer large-span prestressed system.
The frame body quick-dismantling construction method of the multi-layer large-span prestressed system is further improved in that in the process of constructing the main building structure layer by layer from bottom to top, when the floor reaching the tensioning condition is a plurality of layers, the prestress tensioning is carried out layer by layer from bottom to top.
The frame body quick-release construction method of the multi-layer large-span prestressed system is further improved in that the tensioning condition is that the concrete strength of the floor slab is not lower than 80%.
The invention relates to a multi-layer large-span prestressed system and a frame body quick-dismantling construction method thereof, which have the following beneficial effects that: the traditional prestressed tendons are replaced with the slowly-bonded prestressed tendons, so that the limitation that the lower frame body cannot be dismantled before the prestressed tensioning is eliminated, the construction of the main structure of the building, the prestressed tensioning construction and the frame body dismantling construction can be tightly connected, and the construction progress of the frame body dismantling is accelerated; through changing traditional bowl mouth support body into and taking the support body of tearing open convenient socket joint type keyway formula, further accelerated the support body and taken the construction progress of tearing open, strengthened the bearing capacity and the stability of support body simultaneously to be convenient for provide the operating condition for prestressing force stretch-draw construction.
Drawings
Fig. 1 is a schematic diagram of a position relationship between a frame body and a tension node of a multi-layer large-span prestressed system in an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a first step of a frame body quick-release construction method of a multi-layer large-span prestressed system according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating a first step to a second step of a frame body quick-release construction method of a multi-layer large-span prestressed system according to an embodiment of the present invention.
Fig. 4 is a schematic diagram illustrating a second step to a third step of a frame body quick-release construction method of a multi-layer large-span prestressed system according to an embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating a third step to a fourth step of a frame body quick-release construction method of a multi-layer large-span prestressed system according to an embodiment of the present invention.
Fig. 6 is a fourth schematic view of a frame body quick-release construction method of a multi-layer large-span prestressed system according to an embodiment of the present invention.
Detailed Description
As is well known, the traditional multi-layer large-span prestressed system requires that the support frame body below the traditional multi-layer large-span prestressed system cannot be dismantled when the prestressed tensioning operation is performed, so the construction steps of the traditional multi-layer large-span prestressed system are generally as follows: 1. from bottom to top, carrying out 'frame erection-formwork erection-common steel bar laying-prestressed steel bar laying-concrete pouring' layer by layer; 2. after the top floor slab is poured and the prestress tensioning piece is met, performing prestress tensioning-frame dismantling from top to bottom layer by layer. Because the traditional construction steps are that the frame body is dismantled after the prestress tensioning is finished, and the construction period of the prestress tensioning is long, the subsequent process which can be carried out after the frame body is dismantled cannot be started as early as possible, and the construction period of the building construction is influenced. The invention provides a multilayer large-span prestressed system, which adopts a slow-bonding prestressed tendon, wherein the slow-bonding prestressed tendon comprises a steel strand capable of freely stretching and deforming in the construction stage and a slow-setting adhesive which is coated around the steel strand and fixed with the building structure concrete, and the slow-setting adhesive is cured and bonded with the steel strand in a predetermined period after the construction is finished, so that the steel strand, the slow-setting adhesive and the building structure concrete are fixed into a whole. According to the structural characteristics of the slow bonding prestressed tendon, when the slow bonding prestressed tendon is subjected to prestress tensioning, the limitation of whether the lower frame body 30 is removed is avoided; based on the multi-layer large-span prestress system, the frame body quick-dismantling construction method which closely links the construction of the building main body structure, the prestress tension construction and the frame body dismantling construction is provided, and the construction progress of the frame body dismantling is accelerated.
The multi-storey large-span prestressed system of the present invention is further explained by taking a multi-storey large-span building with one underground layer and three above ground layers as an example, and combining the attached drawings.
Referring to fig. 1 and 2, in a preferred embodiment, the multi-layer large-span prestressed system includes a slowly-bonded prestressed tendon 20 embedded in a floor slab 10 and a frame 30 for supporting the floor slab 10, wherein a tensioning operation space of at least one station is reserved at a position of the frame 30 corresponding to a tensioning node 21 of the slowly-bonded prestressed tendon 20.
In this embodiment, preferably compared with the conventional rack body, the socket key slot type rack body is more stable, stronger in bearing capacity, reliable in overturn prevention, and convenient and flexible to erect and disassemble, the rack body 30 includes a plurality of vertical rods 31 arranged at intervals, and when the rack body 30 is erected, the distance W between the vertical rods 31 adjacent to the tensioned node 21 is not less than 1200mm, so as to provide a sufficient working space for prestress tensioning.
The invention provides a frame body quick-dismantling construction method of a multi-layer large-span prestressed system, which comprises the following steps:
constructing a main building structure layer by layer from bottom to top, and embedding slow bonding prestressed tendons in floor slabs (the floor slab at the bottommost layer comprises a floor slab and a roof slab, and the floor slabs at other layers only comprise the roof slab) of the main building structure;
the method comprises the following steps that while a building main body structure is constructed, floors below a floor under construction are detected periodically, when a floor with floors reaches a tensioning condition, the floor of the floor reaching the tensioning condition is subjected to prestress tensioning, and a frame body of the floor is dismantled after the prestress tensioning of one floor is completed; when a plurality of floors reach the tensioning condition, prestress tensioning and support body dismantling operation are carried out layer by layer according to the sequence from bottom to top.
The frame body is dismantled only after the floor slab supported by the frame body is dismantled, but the common tensioning condition is that the concrete strength of the floor slab reaches 80%, the frame body is dismantled under the condition that the concrete strength of the floor slab reaches 100%, the construction period of the prestress tensioning operation is long and is far longer than the time of the concrete strength of the floor slab from 80% to 100%, so that the frame body is dismantled for each layer of prestress tensioning operation, and sufficient time is guaranteed to enable the floor slab to reach the frame body dismantling condition. For the construction condition that the total construction period is short, whether the layer reaches the frame body dismantling condition or not can be detected regularly after the prestress tensioning operation of the layer is started, when the frame body dismantling condition is reached, the frame body dismantling operation of the layer can be started immediately without waiting for the prestress tensioning operation of the layer to be finished, so that the frame body dismantling time can be further shortened, and the total construction period can be shortened. Therefore, the construction method of the invention can be flexibly used according to the conditions of construction periods required by different buildings and different procedures in actual construction, but the principle is to connect the construction of the main structure of the building, the prestress tensioning operation and the frame body dismantling operation as tightly as possible.
The quick-dismantling construction method of the frame body of the multi-layer large-span prestressed system is further described below with reference to the accompanying drawings.
Referring to the first step to the second step shown in fig. 2 and 3:
the construction method comprises the steps of constructing a building main body structure from an underground floor B1 upwards layer by layer, paving slow-bonding prestressed tendons 20 at each floor 10 (the floor of the underground floor B1 refers to a floor bottom plate and a floor top plate, and the floors of the first layer F1 to the third layer F3 refer to the floor top plate only), when the floor 10 of the underground floor B1 reaches a tensioning condition after the construction of the building main body structure of the first layer F1 is finished, sequentially carrying out prestress tensioning on the slow-bonding prestressed tendons 20 in the floor bottom plate and the floor top plate of the underground floor B1 while continuously constructing the building main body structure of the second layer F2, and dismantling a frame 30 for the underground floor B1 after the prestress tensioning of the underground floor B1 is finished.
Referring to the second to third steps shown in fig. 3 and 4:
when the floor slab of the first floor F1 reaches the tensioning condition after the construction of the main building structure of the second floor F2 is finished, the construction of the main building structure of the third floor F3 is continued, the slow-bonded prestressed tendons 20 in the floor slab of the first floor F1 are prestressed and tensioned, and the frame body 30 of the first floor F1 is dismantled after the prestressed tensioning of the first floor F1 is finished.
Referring to the third to fourth steps shown in fig. 4 and 5:
after the construction of all the building structure bodies is finished, whether the floor slabs 10 of floors (namely, the second floor F2 and the third floor F3) which are not subjected to prestress tensioning are in a stretching condition or not is detected at regular time, when the prestress tensioning of the first floor F1 is finished and the floor slab 10 of the second floor F2 is detected to be in the stretching condition, the prestress tensioning is carried out on the slow bonding prestressed tendons 20 in the floor slab 10 of the second floor F2, and the frame body 30 is dismantled from the second floor F2 after the prestress tensioning of the second floor F2 is finished.
Referring to the fourth step shown in fig. 5 and 6:
when the prestressed tensioning of the second floor F2 is finished and the floor slab 10 of the third floor F3 (i.e. the top floor) reaches the tensioning condition, the slow-bonded prestressed tendons 20 in the floor slab 10 of the third floor F3 are prestressed tensioned, and after the prestressed tensioning of the third floor F2 is finished, the third floor F3 is dismantled from the shelves 30, so that all the shelves 30 are dismantled (as shown in fig. 6).
Preferably, as shown in fig. 1, when constructing the building main structure, the tensioning nodes 21 of the slow bonded prestressed tendons 20 are preset, and the frame body 30 is arranged and erected according to the positions of the tensioning nodes 21, so that the vertical rods 31 of the frame body 30 are kept away from the positions of the tensioning nodes 21, and the distance between the vertical rods 31 adjacent to the tensioning nodes 21 is not less than 1200mm, so as to ensure that the subsequent prestressed tensioning is smoothly performed in the frame body 30.
The above embodiment is only a preferred embodiment, and if the frame body quick-release construction method of the invention is adopted for building structures with more layers, only the following adjustment is needed: adopting a first step for the first layer and the upper layer of the first layer; adopting a third step and a fourth step for the top layer and the next layer of the top layer; the second step is repeated layer by layer for the other intermediate layers from bottom to top.
By adopting the construction method for quickly disassembling the frame body, the construction of the main structure of the building, the prestressed tension construction and the frame body disassembling construction are closely connected, so that the construction progress of the frame body disassembling is accelerated; the support body of cooperation socket joint type keyway formula has further accelerated the construction progress that the support body was taken and is torn open, has strengthened the bearing capacity and the stability of support body simultaneously to carry out the prestressing force stretch-draw construction for the successive layer and provide the operation condition.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (9)
1. The utility model provides a multilayer large-span prestressing force system which characterized in that, is including burying underground in the slow bonding prestressing tendons of floor and being used for supporting the support body of floor, the support body corresponds the stretch-draw operation space of at least one station is left in the position department of the stretch-draw node of slow bonding prestressing tendons.
2. The multi-layer large-span prestressed system as claimed in claim 1, wherein said frame body includes several spaced-apart vertical rods, and the distance between said vertical rods adjacent to said tension nodes is not less than 1200 mm.
3. The multi-layer large-span prestressed system according to claim 1 or 2, characterized by that said frame body is a socket-type key-groove frame body.
4. A frame body quick-release construction method of a multi-layer large-span prestressed system, as recited in claim 1, is characterized by comprising the following steps:
constructing a main building structure layer by layer from bottom to top, and embedding the slow bonding prestressed tendons in a floor slab of the main building structure;
and (4) carrying out prestress tensioning on the floor slabs of the floors reaching the tensioning condition, and dismantling the frame body on each floor after the prestress tensioning of one floor is finished.
5. The method for rapidly detaching a frame body of a multi-layer large-span prestressed system according to claim 4, wherein when a main structure of a building is constructed, the tension nodes of the slowly-bonded prestressed tendons are preset, and the frame body is arranged and erected according to the positions of the tension nodes, so that a tension working space of at least one station is reserved at the position of the frame body corresponding to the tension nodes of the slowly-bonded prestressed tendons.
6. A frame body quick-release construction method of a multi-layer large-span prestressed system as claimed in claim 5, characterized in that when erecting the frame body, the vertical rods of the frame body are arranged avoiding the position of the tension node, and the distance between the vertical rods adjacent to the tension node is not less than 1200 mm.
7. The method for rapidly disassembling a frame body of a multi-layer large-span prestressed system according to claim 5 or 6, wherein said frame body is a socket key groove type frame body.
8. A frame body quick-release construction method of a multi-layer large-span prestressed system as claimed in claim 4, characterized in that during the construction of the building main structure layer by layer from bottom to top, when the floor reaching the tension condition is multi-layer, the prestress tension is performed layer by layer from bottom to top.
9. A frame body quick-release construction method of a multi-layer large-span prestressed system as claimed in claim 4, wherein said tension condition is that the concrete strength of the floor slab is not less than 80%.
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| CN201911314823.0A CN111021614A (en) | 2019-12-19 | 2019-12-19 | Multi-layer large-span prestressed system and frame body quick-dismantling construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467523A (en) * | 2022-09-24 | 2022-12-13 | 中铁一局集团建筑安装工程有限公司 | Construction process of multilayer prestressed structure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629418A (en) * | 2009-08-03 | 2010-01-20 | 天津市建筑科学研究院 | Post-tensioned prestressing cast pile and construction method thereof |
| CN202882219U (en) * | 2012-09-26 | 2013-04-17 | 同济大学 | Retard-bonded prestressed hollow steel reinforced concrete (SRC) beam |
| KR101343887B1 (en) * | 2012-11-05 | 2013-12-20 | 케이조인스(주) | Splicing method for superconductive wires containing mg and b |
| CN104631836A (en) * | 2014-12-08 | 2015-05-20 | 永升建设集团有限公司 | Post-tensioning-method retard-bonded pre-stress cast-in-place concrete construction method |
| CN105587060A (en) * | 2015-12-23 | 2016-05-18 | 杭州江润科技有限公司 | Construction method for slowly-bonded hollow prestressing floor slab through large-span ultra-thick cast-in-place post-tensioning method |
| CN105839913A (en) * | 2016-03-29 | 2016-08-10 | 杭州二建建设有限公司 | Socket type slot mode steel tube support section steel joist construction method |
| CN206352391U (en) * | 2016-12-14 | 2017-07-25 | 中国建筑第七工程局有限公司 | Socket joint type key slot type Quick Release support system |
| JP2017218527A (en) * | 2016-06-09 | 2017-12-14 | 株式会社豊田中央研究所 | Isocyanate curable coating composition and coating method using the same |
| CN108951607A (en) * | 2018-06-26 | 2018-12-07 | 上海建工集团股份有限公司 | The hollow continuous underground wall structure of cast-in-place post-tensioned prestressed concrete and its construction method |
| CN110230397A (en) * | 2019-06-17 | 2019-09-13 | 陕西建工第三建设集团有限公司 | A kind of construction method of building space dislocation overhanging balcony |
-
2019
- 2019-12-19 CN CN201911314823.0A patent/CN111021614A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629418A (en) * | 2009-08-03 | 2010-01-20 | 天津市建筑科学研究院 | Post-tensioned prestressing cast pile and construction method thereof |
| CN202882219U (en) * | 2012-09-26 | 2013-04-17 | 同济大学 | Retard-bonded prestressed hollow steel reinforced concrete (SRC) beam |
| KR101343887B1 (en) * | 2012-11-05 | 2013-12-20 | 케이조인스(주) | Splicing method for superconductive wires containing mg and b |
| CN104631836A (en) * | 2014-12-08 | 2015-05-20 | 永升建设集团有限公司 | Post-tensioning-method retard-bonded pre-stress cast-in-place concrete construction method |
| CN105587060A (en) * | 2015-12-23 | 2016-05-18 | 杭州江润科技有限公司 | Construction method for slowly-bonded hollow prestressing floor slab through large-span ultra-thick cast-in-place post-tensioning method |
| CN105839913A (en) * | 2016-03-29 | 2016-08-10 | 杭州二建建设有限公司 | Socket type slot mode steel tube support section steel joist construction method |
| JP2017218527A (en) * | 2016-06-09 | 2017-12-14 | 株式会社豊田中央研究所 | Isocyanate curable coating composition and coating method using the same |
| CN206352391U (en) * | 2016-12-14 | 2017-07-25 | 中国建筑第七工程局有限公司 | Socket joint type key slot type Quick Release support system |
| CN108951607A (en) * | 2018-06-26 | 2018-12-07 | 上海建工集团股份有限公司 | The hollow continuous underground wall structure of cast-in-place post-tensioned prestressed concrete and its construction method |
| CN110230397A (en) * | 2019-06-17 | 2019-09-13 | 陕西建工第三建设集团有限公司 | A kind of construction method of building space dislocation overhanging balcony |
Non-Patent Citations (3)
| Title |
|---|
| 张喆、吕李青、周黎光、支超: "沈阳文化艺术中心缓粘结预应力施工过程有限元分析", 《沈阳文化艺术中心缓粘结预应力施工过程有限元分析》 * |
| 徐伟、苏宏阳: "《建筑工程分部分项施工手册（2）主体工程》", 31 May 1999 * |
| 韩俊强、袁自峰: "《土木工程施工技术 第2版》", 31 December 2013, 武汉大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467523A (en) * | 2022-09-24 | 2022-12-13 | 中铁一局集团建筑安装工程有限公司 | Construction process of multilayer prestressed structure |
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