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学者姓名：曹万林
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Abstract ：
Multicell concrete-filled steel tube (CFST) columns with excellent mechanical performance have been used in super high-rise buildings in recent years. According to the requirements of a 265-m tall building, the double-cell CFST columns with an innovative cross section of table tennis racket were applied. Hence, six columns were designed according to the prototype columns and subjected to low-frequency cyclic loading. The impacts of different shear-span ratios (SSRs), axial load ratios (ALRs), and steel ratios on the seismic behavior were elaborated and clarified. The test results indicated that the seismic performance varied in different loading directions owing to the asymmetric cross section, and the columns performed better in the positive loading direction resulted from earlier and more sufficient confinement of the circular steel tube, which was also reflected by the measured strain development. With SSR deceasing from 2.5 to 1.7, earlier and more severe damage was recorded. The resisting capacity and stiffness were significantly improved at a cost of ductility loss. Increasing ALR from 0.2 to 0.4 brought about more damage and worse deformability. However, a proper increase in axial load was beneficial to the resisting capacity and stiffness, and its influence on the restoration capacity was associated with SSR. Increasing the steel ratio (by 33.36%) could effectively postpone and alleviate the local buckling of steel tube, thereby comprehensively improving the seismic performance. A finite element (FE) analysis of such columns was performed to carry out the damage evolution and parametric study, and provide references for their application in practical engineering.
Keyword ：
Seismic performance Seismic performance Shear -span ratio Shear -span ratio Axial load ratio Axial load ratio FE analysis FE analysis CFST column CFST column
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| GB/T 7714 | Dong, Hongying , Zhu, Jian , Cao, Wanlin et al. Seismic behavior of double-cell CFST columns with table tennis racket-shaped cross section [J]. | ENGINEERING STRUCTURES , 2024 , 311 . |
| MLA | Dong, Hongying et al. "Seismic behavior of double-cell CFST columns with table tennis racket-shaped cross section" . | ENGINEERING STRUCTURES 311 (2024) . |
| APA | Dong, Hongying , Zhu, Jian , Cao, Wanlin , Peng, Bin . Seismic behavior of double-cell CFST columns with table tennis racket-shaped cross section . | ENGINEERING STRUCTURES , 2024 , 311 . |
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Abstract ：
This study proposes an innovative prefabricated double L-shaped beam-column joint with triangular stiffener (double L-shaped joint) for low-rise residential buildings. The double L-shaped joint consists of the L-shaped connector with triangular stiffener, web side plate connection, Hshaped beam, and concrete-filled lightweight steel tube (CFLST) column or square hollow steel tube (SHS) column. Twelve double L-shaped joints are manufactured and experimented. The design parameters include the column types (CFLST or SHS), triangular stiffener height, perforated end plate (with or without), and the web side plate connection (with or without). In addition, the failure modes, hysteretic performances, ultimate capacity, stiffness degradation, deformation capacity, energy dissipation, and strain responses of joint specimens are analyzed. The experimental results show that the failure modes include steel tube local buckling, weld cracking, and bolts fracture in the area of the L-shaped connector. The ultimate moment of the CFLST column joints rises from 4.53% to 13.05% compared to the SHS column joints, while the initial stiffness increases from 2.16% to 26.46%. The perforated end plate grows at the ultimate moment, but the ductility index reduces. The initial stiffness and deformation capacity of the specimens without a web side plate connection decreases significantly. The finite element model is developed, and the numerical simulation is conducted. The experimental results are consistent with failure modes and bending moment versus rotation angle curves obtioned by numerical simulation.
Keyword ：
Triangular stiffener Triangular stiffener Numerical simulation Numerical simulation Column-beam joint Column-beam joint Seismic experiment Seismic experiment L-shaped connector L-shaped connector
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| GB/T 7714 | Yang, Zhaoyuan , Cao, Wanlin , Qiao, Qiyun et al. Experimental and numerical study on the prefabricated double L-shaped beam-column joint with triangular stiffener [J]. | JOURNAL OF BUILDING ENGINEERING , 2023 , 69 . |
| MLA | Yang, Zhaoyuan et al. "Experimental and numerical study on the prefabricated double L-shaped beam-column joint with triangular stiffener" . | JOURNAL OF BUILDING ENGINEERING 69 (2023) . |
| APA | Yang, Zhaoyuan , Cao, Wanlin , Qiao, Qiyun , Zhang, Jianwei . Experimental and numerical study on the prefabricated double L-shaped beam-column joint with triangular stiffener . | JOURNAL OF BUILDING ENGINEERING , 2023 , 69 . |
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Abstract ：
A large stress is produced in the straight-tenon joints of a wooden structure during an earthquake, and this can cause the tenon to pull out and destabilize the timber frame. Therefore, four types of lightweight steel re-inforcements for straight-tenon joints are herein proposed. Seven straight-tenon douglas fir joint specimens include one unreinforced and six reinforced specimens, are subject to low-frequency cyclic loading according to the Chinese specification JGJ/T101-2015. Failure modes, moment-rotation hysteretic curves, skeleton curves, stiffness degradation, strength degradation, energy dissipation capacity, and tenon pulled-out values are ob-tained and discussed. The results indicate that the unreinforced specimens are damaged because of the large tenon pulled-out values and obvious pinching effect of the hysteretic curve. Compared with unreinforced specimens, the final failure modes of all reinforced specimens are changed, hysteretic curves become fuller, peak load increases by more than 10%, initial stiffness increases by more than 25%, and bearing capacity degradation improves significantly; they achieve a good reinforcement effect. The strength and energy dissipation of the specimens increased with an increasing triangular-rib size. An FE model is established, and the FE-predicted results match the test results well. The parametric study results indicate that increasing the size of the tenon and the length of the tapping screw can effectively improve the seismic performance of the specimen.
Keyword ：
Seismic performance Seismic performance Timber structure Timber structure Lightweight steel reinforcement Lightweight steel reinforcement Low-frequency cyclic loading Low-frequency cyclic loading Straight-tenon joint Straight-tenon joint
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| GB/T 7714 | Dong, Hongying , Jin, Yunjian , Cao, Wanlin et al. Seismic performance of wooden straight-tenon joints reinforced with lightweight steel members [J]. | ENGINEERING STRUCTURES , 2023 , 282 . |
| MLA | Dong, Hongying et al. "Seismic performance of wooden straight-tenon joints reinforced with lightweight steel members" . | ENGINEERING STRUCTURES 282 (2023) . |
| APA | Dong, Hongying , Jin, Yunjian , Cao, Wanlin , Liang, Xu , Liu, Siyuan . Seismic performance of wooden straight-tenon joints reinforced with lightweight steel members . | ENGINEERING STRUCTURES , 2023 , 282 . |
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Abstract ：
本实用新型公开了装配式轻钢组合钢丝网架砂浆‑珍珠岩‑聚苯复合剪力墙，涉及装配式混凝土建筑结构工程技术领域。包括钢丝网砂浆‑珍珠岩面层，钢丝网砂浆层以及珍珠岩防火层、外钢丝网、轻钢框格、轻钢组合桁架、组合连接构造。承重钢丝网架内钢丝网点焊水平腹丝及斜向腹丝构成，水平腹丝及斜向腹丝伸入剪力墙混凝土；轻钢框格由C形钢焊接而成，U形钢丝分别点焊连接钢丝网和C形钢；轻钢组合桁架为由钢丝网砂浆层、断桥自攻钉腹杆、框格轻钢弦杆构成的桁架；组合连接构造是指上、下剪力墙板之间采用钢筋套筒装配；本发明中具厚度薄、质量轻，抗火和隔热性能好、受力性能好的特点。
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| GB/T 7714 | 曹万林 , 杨兆源 , 乔崎云 . 装配式轻钢组合钢丝网架砂浆-珍珠岩-聚苯复合剪力墙 : CN202223507723.X[P]. | 2022-12-27 . |
| MLA | 曹万林 et al. "装配式轻钢组合钢丝网架砂浆-珍珠岩-聚苯复合剪力墙" : CN202223507723.X. | 2022-12-27 . |
| APA | 曹万林 , 杨兆源 , 乔崎云 . 装配式轻钢组合钢丝网架砂浆-珍珠岩-聚苯复合剪力墙 : CN202223507723.X. | 2022-12-27 . |
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Abstract ：
本发明公开了一种装配式轻钢组合桁架承托钢丝网架砂浆‑珍珠岩‑聚苯复合剪力墙及作法，涉及装配式混凝土建筑结构工程技术领域。包括钢丝网砂浆‑珍珠岩面层，包括钢丝网砂浆层以及珍珠岩防火层；承重钢丝网架，由外钢丝网、内钢丝网点焊水平腹丝及斜向腹丝构成，水平腹丝及斜向腹丝伸入剪力墙混凝土；轻钢框格，由C形钢焊接而成，U形钢丝分别点焊连接钢丝网和C形钢；轻钢组合桁架，为由钢丝网砂浆层、断桥自攻钉腹杆、框格轻钢弦杆构成的桁架；组合连接构造，是指上、下剪力墙板之间采用钢筋套筒装配，左、右剪力墙采用后浇混凝土条带装配。本发明中具厚度薄、质量轻，抗火和隔热性能好、受力性能好的特点。
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| GB/T 7714 | 曹万林 , 杨兆源 , 乔崎云 . 装配式轻钢组合桁架承托钢丝网架砂浆-珍珠岩-聚苯复合剪力墙和作法 : CN202211690853.3[P]. | 2022-12-27 . |
| MLA | 曹万林 et al. "装配式轻钢组合桁架承托钢丝网架砂浆-珍珠岩-聚苯复合剪力墙和作法" : CN202211690853.3. | 2022-12-27 . |
| APA | 曹万林 , 杨兆源 , 乔崎云 . 装配式轻钢组合桁架承托钢丝网架砂浆-珍珠岩-聚苯复合剪力墙和作法 : CN202211690853.3. | 2022-12-27 . |
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Abstract ：
本实用新型公开了装配式复合墙板L形柱与生态内墙自攻钉集块连接构造，用于多层建筑承受地震作用较大的同层生态内墙板与复合墙板的装配。自攻钉集块由焊接在复合墙板L形构造柱以及生态墙板边框柱上的传力钢板以及连接钢板，采用自攻钉自由穿过连接钢板自攻钉孔与传力钢板自攻连接形成，连接钢板与传力钢板具有应挤压力产生的钢板间的摩擦力，同时还可强化钢板与自攻钉的咬合力；墙板与构造柱的施工缝采用水泥基灌浆料填充形成灌注缝；装配式墙板可沿轴线或垂直方向推入，简化了装配施工流程；自攻钉集块连接解决了复合墙构造柱与内墙边框柱连接的难题。本实用新型具有自攻钉集块高效受力，湿作业少，装配式内墙隔音、防水性能好的技术优势。
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| GB/T 7714 | 曹万林 , 祖凡 , 杨兆源 et al. 装配式复合墙板L形柱与生态内墙自攻钉集块连接构造 : CN202220603139.5[P]. | 2022-03-19 . |
| MLA | 曹万林 et al. "装配式复合墙板L形柱与生态内墙自攻钉集块连接构造" : CN202220603139.5. | 2022-03-19 . |
| APA | 曹万林 , 祖凡 , 杨兆源 , 董宏英 . 装配式复合墙板L形柱与生态内墙自攻钉集块连接构造 : CN202220603139.5. | 2022-03-19 . |
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Abstract ：
本发明公开了一种装配式可调定位的十字形钢管柱与再生混凝土独立基础连接构造及作法，涉及装配式钢‑混凝土组合结构技术领域。在独立基础用冷弯薄壁型钢预制出十字形槽口，在十字形钢管柱底部安装可调螺栓，通过拧动螺栓调整十字形钢管柱在独立基础中的位置，实现定位可调；十字形钢管柱与再生混凝土独立基础进行连接时采用后浇细石混凝土的方式，螺栓起到加强锚固的作用。本发明创造了一种新的装配式十字形钢管柱与装配式独立基础的连接构造及作法，实现了十字形钢管柱装配时的定位可调，所用材料简单易得且加工方便，具有绿色环保、易施工、造价低、连接可靠的技术优势。
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| GB/T 7714 | 徐涛 , 沈韦霞 , 王红兵 et al. 一种装配式可调定位的十字形钢管柱与再生混凝土独立基础连接构造及作法 : CN202210310928.4[P]. | 2022-03-28 . |
| MLA | 徐涛 et al. "一种装配式可调定位的十字形钢管柱与再生混凝土独立基础连接构造及作法" : CN202210310928.4. | 2022-03-28 . |
| APA | 徐涛 , 沈韦霞 , 王红兵 , 曹万林 , 谢晖 , 杨兆源 et al. 一种装配式可调定位的十字形钢管柱与再生混凝土独立基础连接构造及作法 : CN202210310928.4. | 2022-03-28 . |
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Abstract ：
本发明公开了一种装配式可调定位的T形钢管柱与再生混凝土独立基础连接构造及作法，涉及装配式钢‑混凝土组合结构技术领域。在独立基础用冷弯薄壁型钢预制出T形槽口，在T形钢管柱底部安装可调螺栓，通过拧动螺栓调整T形钢管柱在独立基础中的位置，实现定位可调；T形钢管柱与再生混凝土独立基础进行连接时采用后浇细石混凝土的方式，螺栓起到加强锚固的作用。本发明创造了一种新的装配式T形钢管柱与装配式独立基础的连接构造及作法，实现了T形钢管柱装配时的定位可调，所用材料简单易得且加工方便，具有绿色环保、易施工、造价低、连接可靠的技术优势。
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| GB/T 7714 | 徐涛 , 沈韦霞 , 王红兵 et al. 一种装配式可调定位的T形钢管柱与再生混凝土独立基础连接构造及作法 : CN202210311068.6[P]. | 2022-03-28 . |
| MLA | 徐涛 et al. "一种装配式可调定位的T形钢管柱与再生混凝土独立基础连接构造及作法" : CN202210311068.6. | 2022-03-28 . |
| APA | 徐涛 , 沈韦霞 , 王红兵 , 曹万林 , 谢晖 , 杨兆源 et al. 一种装配式可调定位的T形钢管柱与再生混凝土独立基础连接构造及作法 : CN202210311068.6. | 2022-03-28 . |
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Abstract ：
本实用新型公开了一种装配式复合墙板与槽形基础梁自攻钉集块连接构造，属于装配式混凝土结构技术领域。所述的自攻钉集块为槽形基础梁带栓钉槽钢与复合墙板一形传力钢板自攻钉连接后形成的钢构外廓40mm的钢‑混凝土组合区块，槽钢翼缘与传力钢板具有挤压力产生的钢板间的摩擦力，同时还可强化钢板与自攻钉的咬合力；槽形基础梁的配筋为C形箍筋约束的槽形钢筋笼；预埋槽钢的槽形基础梁，既便于复合墙板就位，又可有效约束复合墙板在垂直于墙板方向地震作用下产生底部滑移。本实用新型的装配式复合墙板与槽形基础梁自攻钉集块集中传力连接构造、复合墙板与槽型基础梁高性能砂浆连续传力连接构造，具有协同高效受力的技术优势。
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| GB/T 7714 | 董宏英 , 秦嘉 , 曹万林 et al. 一种装配式复合墙板与槽形基础梁自攻钉集块连接构造 : CN202220603128.7[P]. | 2022-03-19 . |
| MLA | 董宏英 et al. "一种装配式复合墙板与槽形基础梁自攻钉集块连接构造" : CN202220603128.7. | 2022-03-19 . |
| APA | 董宏英 , 秦嘉 , 曹万林 , 杨兆源 . 一种装配式复合墙板与槽形基础梁自攻钉集块连接构造 : CN202220603128.7. | 2022-03-19 . |
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Abstract ：
本发明公开了一种装配式复合墙板L形构造柱与独立基础连接结构及装配式复合墙施工方法，包括基础梁、独立基础、基础垫层、L形构造柱，基础垫层设于基础梁与独立基础的下面，独立基础设置在基础梁的L形拐角处，基础梁与独立基础均采用混凝土在现场一起浇筑形成一个整体，基础梁的上表面设有开口朝上的凹形槽，装配式复合墙板的下部固定连接在凹形槽内，独立基础设有L形槽，在L形槽的各侧立面上均预埋设有钢板，L形构造柱的下部插入L形槽内，L形构造柱的下部通过现场浇筑混凝土与独立基础浇筑在一起形成一个整体，装配式复合墙板与L形构造柱固定连接。本发明实现构造柱装配化施工，极大地减少了在施工现场的湿作业工作量，缩短施工工期。
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| GB/T 7714 | 曹万林 , 秦玉 , 杨兆源 et al. 一种装配式复合墙板L形构造柱与独立基础连接结构及装配式复合墙施工方法 : CN202210310929.9[P]. | 2022-03-28 . |
| MLA | 曹万林 et al. "一种装配式复合墙板L形构造柱与独立基础连接结构及装配式复合墙施工方法" : CN202210310929.9. | 2022-03-28 . |
| APA | 曹万林 , 秦玉 , 杨兆源 , 徐涛 , 沈韦霞 , 王红兵 et al. 一种装配式复合墙板L形构造柱与独立基础连接结构及装配式复合墙施工方法 : CN202210310929.9. | 2022-03-28 . |
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