本数据集包括用于防流冰撞击的闭孔泡沫铝夹芯结构室内低速冲击试验数据和黑河－布拉戈维申斯克黑龙江（阿穆尔河）大桥6号桥墩和7号桥墩结构响应现场试验数据。\n
室内试验数据的采集时间为2019年5月1日。所使用的仪器设备为落锤试验机，试验机的冲击锤头为半球形，直径为50mm，重量为230kg，刚性支撑板的内、外径分别为100mm 和 240mm。在试验前，通过计算机自动控制技术将冲击锤头升至预定的下落高度。试验中，冲击锤头自由下落撞击试件的中心区域。通过调整冲击锤头的预设高度来获得初始冲击能量或速度。 \n
现场试验数据的采集时间为2021年4月20日至2021年4月27日。本数据采集的时间精度为0.01秒。空间范围涉及两个试验桥墩。由于不涉及三维空间坐标，因此不考虑此空间精度。其中拾振器采用中国地震局工程力学研究所941B型超低频测振仪。941B型拾振器属于动圈往复式拾振器。拾振器原理如图2所示，当微型拨动开关的开关1接通(ON)时，电阻RPl的阻值较小，故阻尼常数D≥1，拾振器的运动部分构成速度摆，即摆的位移与地面运动的速度成正比，拾振器构成加速度计，它的输出电压与地面运动的加速度成正比。", "ds_source": "
室内试验数据内容涉及到落锤冲击的时间和结构动力响应的采集数据。现场试验数据共有8天的数据，内容涉及到桥墩结构的速度和加速度响应数据。", "ds_process_way": "
落锤试验机和拾振器测量得到。", "ds_quality": "
数据质量良好。", "ds_acq_start_time": "2019-05-01 00:00:00", "ds_acq_end_time": "2021-04-27 00:00:00", "ds_acq_place": "黑龙江阿穆尔河", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 941164, "ds_files_count": 2, "ds_format": "excel,txt", "ds_space_res": null, "ds_time_res": "秒", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "49f7f4de-4d94-4957-93a0-0ef9bdc69822.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "57a5e5a3-6fc5-43b5-a2ba-1f2ca54b7727", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2023-03-31 22:59:19", "last_updated": "2025-06-30 14:52:34", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NIEER.DB2825.2023", "i18n": { "en": { "title": "Experimental dataset for the demonstration project of Heihe Blagoveshchensk Heilongjiang (Amur River) Bridge (May 1, 2019- April 27, 2021)", "ds_format": "excel,txt", "ds_source": "
The content of indoor test data involves the collection of data on the time of hammer impact and structural dynamic response. The on-site test data consists of 8 days of data, which involves the velocity and acceleration response data of the bridge pier structure.", "ds_quality": "
The data quality is good.", "ds_ref_way": "", "ds_abstract": "
This data set includes the indoor low speed impact test data of closed cell foam aluminum sandwich structure used to prevent drift ice impact and the field test data of structural response of No. 6 and No. 7 piers of Heihe Blagoveshchensk Heilongjiang (Amur River) Bridge.\n
The collection time for indoor test data is May 1st, 2019. The instrument and equipment used is a drop hammer testing machine. The impact hammer head of the testing machine is hemispherical, with a diameter of 50mm and a weight of 230kg. The inner and outer diameters of the rigid support plate are 100mm and 240mm respectively. Before the test, the impact hammer head is raised to the predetermined drop height through computer automatic control technology. In the experiment, the impact hammer falls freely and hits the central area of the specimen. Obtain initial impact energy or velocity by adjusting the preset height of the impact hammer. \n
The collection time for on-site test data is from April 20, 2021 to April 27, 2021. The time accuracy of this data collection is 0.01 seconds. The spatial scope involves two test bridge piers. Since it does not involve three-dimensional spatial coordinates, this spatial accuracy is not considered. The vibration collector adopts the 941B ultra-low frequency vibration meter from the Institute of Engineering Mechanics, China Earthquake Administration. The 941B type vibration pickup belongs to the dynamic coil reciprocating vibration pickup. The principle of the vibration pickup is shown in Figure 2. When the switch 1 of the micro toggle switch is turned on, the resistance value of resistor RPl is small, so the damping constant D ≥ 1. The moving part of the vibration pickup constitutes a velocity pendulum, that is, the displacement of the pendulum is proportional to the speed of ground motion. The vibration pickup constitutes an accelerometer, and its output voltage is proportional to the acceleration of ground motion.
", "ds_time_res": "秒", "ds_acq_place": "Amur River, Heilongjiang", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Measured by a drop hammer testing machine and a vibration pickup.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "垂直流向加速度" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑龙江阿穆尔河" ], "ds_time_tags": [ 2019, 2021 ], "ds_contributors": [ { "true_name": "白瑞强", "email": "rqbai@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "白瑞强", "email": "rqbai@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "白瑞强", "email": "rqbai@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "其他" }